Android12 Launcher3显示所有应用列表
1.前言：
最近在Android12Rom定制时需要显示所有桌面应用的图标，并且不能去掉抽屉，在手机上面抽屉和所有应该列表是两种不同模式，用户基可以自行选择，但是在自定义的launcher中这些和原生Rom一起定制时会出现，特别在Android12及以上的版本，这里就讲解一下不去掉抽屉的方式在桌面显示所有应用App图标.
1.修改config.xml
源码路径：packages/apps/launcher3/res/value/config.xml
添加以下代码：
<string name="app_filter_class" translatable="false"></string>
<resources>
<!-- Miscellaneous -->
<bool name="config_largeHeap">false</bool>
<bool name="allow_rotation">false</bool>
<integer name="extracted_color_gradient_alpha">153</integer>
<!-- A string pointer to the original app name string. This allows derived projects to
easily override the app name without providing all translations -->
<string name="derived_app_name" translatable="false">@string/app_name</string>
<!-- String representing the intent for search on the apps market. To specify a query, add
q=<query> to the data to the intent -->
<string name="market_search_intent" translatable="false">market://search?c=apps</string>
<!-- String representing the intent to delete a package.-->
<string name="delete_package_intent" translatable="false">#Intent;action=android.intent.action.DELETE;launchFlags=0x10800000;end</string>
<!-- String representing the fragment class for settings activity.-->
<string name="settings_fragment_name" translatable="false">com.android.launcher3.settings.SettingsActivity$LauncherSettingsFragment</string>
<!-- DragController -->
<item type="id" name="drag_event_parity" />
<!-- AllApps & Launcher transitions -->
<!-- Out of 100, the percent to shrink the workspace during spring loaded mode. -->
<integer name="config_workspaceSpringLoadShrinkPercentage">90</integer>
<!-- The duration of the animation from search hint to text entry -->
<integer name="config_searchHintAnimationDuration">50</integer>
<!-- View tag key used to store SpringAnimation data. -->
<item type="id" name="spring_animation_tag" />
<!-- Workspace -->
<!-- The duration (in ms) of the fade animation on the object outlines, used when
we are dragging objects around on the home screen. -->
<integer name="config_dragOutlineFadeTime">900</integer>
<!-- The alpha value at which to show the most recent drop visualization outline. -->
<integer name="config_dragOutlineMaxAlpha">128</integer>
<!-- Parameters controlling the animation for when an item is dropped on the home screen,
and it animates from its old position to the new one. -->
<integer name="config_dropAnimMinDuration">100</integer>
<integer name="config_dropAnimMaxDuration">500</integer>
<!-- The duration of the UserFolder opening and closing animation -->
<integer name="config_materialFolderExpandDuration">200</integer>
<integer name="config_folderDelay">30</integer>
<!-- The distance at which the animation should take the max duration -->
<integer name="config_dropAnimMaxDist">800</integer>
<!-- The duration of the caret animation -->
<integer name="config_caretAnimationDuration">200</integer>
<!-- Hotseat -->
<bool name="hotseat_transpose_layout_with_orientation">true</bool>
<!-- Various classes overriden by projects/build flavors. -->
<string name="app_filter_class" translatable="false"></string>
<string name="user_event_dispatcher_class" translatable="false"></string>
<string name="folder_name_provider_class" translatable="false"></string>
<string name="stats_log_manager_class" translatable="false"></string>
<string name="app_transition_manager_class" translatable="false"></string>
<string name="instant_app_resolver_class" translatable="false"></string>
<string name="main_process_initializer_class" translatable="false"></string>
<string name="app_launch_tracker_class" translatable="false"></string>
<string name="test_information_handler_class" translatable="false"></string>
<string name="launcher_activity_logic_class" translatable="false"></string>
<string name="prediction_model_class" translatable="false"></string>
<!-- View ID to use for QSB widget -->
<item type="id" name="qsb_widget" />
<!-- View ID used by cell layout to jail its content -->
<item type="id" name="cell_layout_jail_id" />
<!-- View IDs to store item highlight information -->
<item type="id" name="view_unhighlight_background" />
<!-- Menu id for feature flags -->
<item type="id" name="menu_apply_flags" />
<!-- Popup items -->
<integer name="config_popupOpenCloseDuration">150</integer>
<integer name="config_popupArrowOpenCloseDuration">40</integer>
<integer name="config_removeNotificationViewDuration">300</integer>
<!-- Default packages -->
<string name="wallpaper_picker_package" translatable="false"></string>
<string name="calendar_component_name" translatable="false"></string>
<string name="clock_component_name" translatable="false"></string>
<!-- Accessibility actions -->
<item type="id" name="action_remove" />
<item type="id" name="action_uninstall" />
<item type="id" name="action_reconfigure" />
<item type="id" name="action_add_to_workspace" />
<item type="id" name="action_move" />
<item type="id" name="action_move_to_workspace" />
<item type="id" name="action_move_screen_backwards" />
<item type="id" name="action_move_screen_forwards" />
<item type="id" name="action_resize" />
<item type="id" name="action_deep_shortcuts" />
<item type="id" name="action_shortcuts_and_notifications"/>
<item type="id" name="action_dismiss_notification" />
<item type="id" name="action_remote_action_shortcut" />
<item type="id" name="action_dismiss_prediction" />
<item type="id" name="action_pin_prediction"/>
<!-- QSB IDs. DO not change -->
<item type="id" name="search_container_workspace" />
<item type="id" name="search_container_all_apps" />
<!-- Recents -->
<item type="id" name="overview_panel"/>
<!-- Whether to enable background preloading of task thumbnails. -->
<bool name="config_enableTaskSnapshotPreloading">true</bool>
<!-- Configuration resources -->
<item name="all_apps_spring_damping_ratio" type="dimen" format="float">0.75</item>
<item name="all_apps_spring_stiffness" type="dimen" format="float">600</item>
<item name="dismiss_task_trans_y_damping_ratio" type="dimen" format="float">0.73</item>
<item name="dismiss_task_trans_y_stiffness" type="dimen" format="float">800</item>
<item name="dismiss_task_trans_x_damping_ratio" type="dimen" format="float">0.73</item>
<item name="dismiss_task_trans_x_stiffness" type="dimen" format="float">800</item>
<item name="horizontal_spring_damping_ratio" type="dimen" format="float">0.8</item>
<item name="horizontal_spring_stiffness" type="dimen" format="float">250</item>
<item name="swipe_up_rect_scale_damping_ratio" type="dimen" format="float">0.75</item>
<item name="swipe_up_rect_scale_stiffness" type="dimen" format="float">200</item>
<item name="swipe_up_rect_xy_fling_friction" type="dimen" format="float">1.5</item>
<item name="swipe_up_rect_xy_damping_ratio" type="dimen" format="float">0.8</item>
<item name="swipe_up_rect_xy_stiffness" type="dimen" format="float">200</item>
<item name="staggered_damping_ratio" type="dimen" format="float">0.7</item>
<item name="staggered_stiffness" type="dimen" format="float">150</item>
<dimen name="unlock_staggered_velocity_dp_per_s">4dp</dimen>
<item name="hint_scale_damping_ratio" type="dimen" format="float">0.7</item>
<item name="hint_scale_stiffness" type="dimen" format="float">200</item>
<dimen name="hint_scale_velocity_dp_per_s">0.3dp</dimen>
<!-- Swipe up to home related -->
<dimen name="swipe_up_fling_min_visible_change">18dp</dimen>
<dimen name="swipe_up_y_overshoot">10dp</dimen>
<dimen name="swipe_up_max_workspace_trans_y">-60dp</dimen>
<array name="dynamic_resources">
<item>@dimen/all_apps_spring_damping_ratio</item>
<item>@dimen/all_apps_spring_stiffness</item>
<item>@dimen/dismiss_task_trans_y_damping_ratio</item>
<item>@dimen/dismiss_task_trans_y_stiffness</item>
<item>@dimen/dismiss_task_trans_x_damping_ratio</item>
<item>@dimen/dismiss_task_trans_x_stiffness</item>
<item>@dimen/horizontal_spring_damping_ratio</item>
<item>@dimen/horizontal_spring_stiffness</item>
<item>@dimen/swipe_up_rect_scale_damping_ratio</item>
<item>@dimen/swipe_up_rect_scale_stiffness</item>
<item>@dimen/swipe_up_rect_xy_fling_friction</item>
<item>@dimen/swipe_up_rect_xy_damping_ratio</item>
<item>@dimen/swipe_up_rect_xy_stiffness</item>
<item>@dimen/staggered_damping_ratio</item>
<item>@dimen/staggered_stiffness</item>
<item>@dimen/unlock_staggered_velocity_dp_per_s</item>
<item>@dimen/swipe_up_fling_min_visible_change</item>
<item>@dimen/swipe_up_y_overshoot</item>
<item>@dimen/hint_scale_damping_ratio</item>
<item>@dimen/hint_scale_stiffness</item>
<item>@dimen/hint_scale_velocity_dp_per_s</item>
</array>
<string-array name="live_wallpapers_remove_sysui_scrims">
</string-array>
<string name="calendar_component_name" translatable="false">com.android.calendar/com.android.calendar.AllInOneActivity</string>
<string name="clock_component_name" translatable="false">com.android.deskclock/com.android.deskclock.DeskClock</string>
<!--Add for dynamic icon feature: start-->
<!-- The default state of the dynamic icon, true: open, false: closed -->
<bool name="dynamic_calendar_default_state">true</bool>
<bool name="dynamic_clock_default_state">true</bool>
<!--Add for dynamic icon feature: end-->
</resources>
2.修改AppFilter：
源码路径：packages/apps/launcher3/src/com/android/launcher3/AppFilter.java
public class AppFilter implements ResourceBasedOverride {
private final Set<ComponentName> mFilteredComponents;
.collect(Collectors.toSet());
}
public static AppFilter newInstance(Context context) {
return Overrides.getObject(AppFilter.class, context, R.string.app_filter_class);
}
public boolean shouldShowApp(ComponentName app) {
//显示所有App
// return !mFilteredComponents.contains(app);
//add start
return true;
//add end
}
}
3.修改SessionCommitReceiver：
源码路径：packages/apps/launcher3/src/com/android/launcher3/SessionCommitReceiver.java
核心修改如下：
if (TextUtils.isEmpty(info.getAppPackageName())
//add start
// || info.getInstallReason() != PackageManager.INSTALL_REASON_USER
//add end
|| packageInstallerCompat.promiseIconAddedForId(info.getSessionId())) {
packageInstallerCompat.removePromiseIconId(info.getSessionId());
return;
}
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInstaller;
import android.content.pm.PackageInstaller.SessionInfo;
import android.content.pm.PackageManager;
import android.os.UserHandle;
import android.text.TextUtils;
import androidx.annotation.WorkerThread;
import com.android.launcher3.logging.FileLog;
import com.android.launcher3.model.ItemInstallQueue;
import com.android.launcher3.pm.InstallSessionHelper;
import com.android.launcher3.util.Executors;
/**
* BroadcastReceiver to handle session commit intent.
*/
public class SessionCommitReceiver extends BroadcastReceiver {
private static final String LOG = "SessionCommitReceiver";
// Preference key for automatically adding icon to homescreen.
public static final String ADD_ICON_PREFERENCE_KEY = "pref_add_icon_to_home";
@Override
public void onReceive(Context context, Intent intent) {
Executors.MODEL_EXECUTOR.execute(() -> processIntent(context, intent));
}
@WorkerThread
private static void processIntent(Context context, Intent intent) {
if (!isEnabled(context)) {
// User has decided to not add icons on homescreen.
return;
}
SessionInfo info = intent.getParcelableExtra(PackageInstaller.EXTRA_SESSION);
UserHandle user = intent.getParcelableExtra(Intent.EXTRA_USER);
if (!PackageInstaller.ACTION_SESSION_COMMITTED.equals(intent.getAction())
|| info == null || user == null) {
// Invalid intent.
return;
}
InstallSessionHelper packageInstallerCompat = InstallSessionHelper.INSTANCE.get(context);
packageInstallerCompat.restoreDbIfApplicable(info);
if (TextUtils.isEmpty(info.getAppPackageName())
//add start
// || info.getInstallReason() != PackageManager.INSTALL_REASON_USER
//add end
|| packageInstallerCompat.promiseIconAddedForId(info.getSessionId())) {
packageInstallerCompat.removePromiseIconId(info.getSessionId());
return;
}
FileLog.d(LOG,
"Adding package name to install queue. Package name: " + info.getAppPackageName()
+ ", has app icon: " + (info.getAppIcon() != null)
+ ", has app label: " + !TextUtils.isEmpty(info.getAppLabel()));
ItemInstallQueue.INSTANCE.get(context)
.queueItem(info.getAppPackageName(), user);
}
public static boolean isEnabled(Context context) {
return Utilities.getPrefs(context).getBoolean(ADD_ICON_PREFERENCE_KEY, true);
}
}
4.修改FeatureFlags:
源码路径：packages/apps/launcher3/src/com/android/launcher3/config/FeatureFlags.java
核心修改如下：
/**
* true: All applications are displayed in the workspace. Turn off the display of the allapp list
*/
public static final boolean REMOVE_DRAWER = true;
5.修改AddWorkspaceItemsTask:
源码路径：packages/apps/launcher3/src/com/android/launcher3/model/AddWorkspaceItemsTask.java
package com.android.launcher3.model;
import android.content.Intent;
import android.content.pm.LauncherActivityInfo;
import android.content.pm.LauncherApps;
import android.content.pm.PackageInstaller.SessionInfo;
import android.os.UserHandle;
import android.util.LongSparseArray;
import android.util.Pair;
import com.android.launcher3.InvariantDeviceProfile;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.LauncherModel.CallbackTask;
import com.android.launcher3.LauncherSettings;
import com.android.launcher3.logging.FileLog;
import com.android.launcher3.model.BgDataModel.Callbacks;
import com.android.launcher3.model.data.AppInfo;
import com.android.launcher3.model.data.FolderInfo;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.model.data.LauncherAppWidgetInfo;
import com.android.launcher3.model.data.WorkspaceItemInfo;
import com.android.launcher3.pm.InstallSessionHelper;
import com.android.launcher3.pm.PackageInstallInfo;
import com.android.launcher3.util.GridOccupancy;
import com.android.launcher3.util.IntArray;
import com.android.launcher3.util.PackageManagerHelper;
import com.android.launcher3.config.FeatureFlags;
import java.util.ArrayList;
import java.util.List;
/**
* Task to add auto-created workspace items.
*/
public class AddWorkspaceItemsTask extends BaseModelUpdateTask {
private static final String LOG = "AddWorkspaceItemsTask";
private final List<Pair<ItemInfo, Object>> mItemList;
/**
* @param itemList items to add on the workspace
*/
public AddWorkspaceItemsTask(List<Pair<ItemInfo, Object>> itemList) {
mItemList = itemList;
}
@Override
public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList apps) {
if (mItemList.isEmpty()) {
return;
}
final ArrayList<ItemInfo> addedItemsFinal = new ArrayList<>();
final IntArray addedWorkspaceScreensFinal = new IntArray();
synchronized(dataModel) {
IntArray workspaceScreens = dataModel.collectWorkspaceScreens();
List<ItemInfo> filteredItems = new ArrayList<>();
for (Pair<ItemInfo, Object> entry : mItemList) {
ItemInfo item = entry.first;
if (item.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION ||
item.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) {
// Short-circuit this logic if the icon exists somewhere on the workspace
if (shortcutExists(dataModel, item.getIntent(), item.user)) {
continue;
}
// b/139663018 Short-circuit this logic if the icon is a system app
// add start
/* if(!FeatureFlags.REMOVE_DRAWER){
if (PackageManagerHelper.isSystemApp(app.getContext(), item.getIntent())) {
continue;
}
} */
// add end
}
if (item.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
if (item instanceof AppInfo) {
item = ((AppInfo) item).makeWorkspaceItem();
}
}
if (item != null) {
filteredItems.add(item);
}
}
InstallSessionHelper packageInstaller =
InstallSessionHelper.INSTANCE.get(app.getContext());
LauncherApps launcherApps = app.getContext().getSystemService(LauncherApps.class);
for (ItemInfo item : filteredItems) {
// Find appropriate space for the item.
int[] coords = findSpaceForItem(app, dataModel, workspaceScreens,
addedWorkspaceScreensFinal, item.spanX, item.spanY);
int screenId = coords[0];
ItemInfo itemInfo;
if (item instanceof WorkspaceItemInfo || item instanceof FolderInfo ||
item instanceof LauncherAppWidgetInfo) {
itemInfo = item;
} else if (item instanceof AppInfo) {
itemInfo = ((AppInfo) item).makeWorkspaceItem();
} else {
throw new RuntimeException("Unexpected info type");
}
if (item instanceof WorkspaceItemInfo && ((WorkspaceItemInfo) item).isPromise()) {
WorkspaceItemInfo workspaceInfo = (WorkspaceItemInfo) item;
String packageName = item.getTargetComponent() != null
? item.getTargetComponent().getPackageName() : null;
if (packageName == null) {
continue;
}
SessionInfo sessionInfo = packageInstaller.getActiveSessionInfo(item.user,
packageName);
if (!packageInstaller.verifySessionInfo(sessionInfo)) {
FileLog.d(LOG, "Item info failed session info verification. "
+ "Skipping : " + workspaceInfo);
continue;
}
List<LauncherActivityInfo> activities = launcherApps
.getActivityList(packageName, item.user);
boolean hasActivity = activities != null && !activities.isEmpty();
if (sessionInfo == null) {
if (!hasActivity) {
// Session was cancelled, do not add.
continue;
}
} else {
workspaceInfo.setProgressLevel(
(int) (sessionInfo.getProgress() * 100),
PackageInstallInfo.STATUS_INSTALLING);
}
if (hasActivity) {
// App was installed while launcher was in the background,
// or app was already installed for another user.
itemInfo = new AppInfo(app.getContext(), activities.get(0), item.user)
.makeWorkspaceItem();
if (shortcutExists(dataModel, itemInfo.getIntent(), itemInfo.user)) {
// We need this additional check here since we treat all auto added
// workspace items as promise icons. At this point we now have the
// correct intent to compare against existing workspace icons.
// Icon already exists on the workspace and should not be auto-added.
continue;
}
WorkspaceItemInfo wii = (WorkspaceItemInfo) itemInfo;
wii.title = "";
wii.bitmap = app.getIconCache().getDefaultIcon(item.user);
app.getIconCache().getTitleAndIcon(wii,
((WorkspaceItemInfo) itemInfo).usingLowResIcon());
}
}
// Add the shortcut to the db
getModelWriter().addItemToDatabase(itemInfo,
LauncherSettings.Favorites.CONTAINER_DESKTOP, screenId,
coords[1], coords[2]);
// Save the WorkspaceItemInfo for binding in the workspace
addedItemsFinal.add(itemInfo);
// log bitmap and label
FileLog.d(LOG, "Adding item info to workspace: " + itemInfo);
}
}
if (!addedItemsFinal.isEmpty()) {
scheduleCallbackTask(new CallbackTask() {
@Override
public void execute(Callbacks callbacks) {
final ArrayList<ItemInfo> addAnimated = new ArrayList<>();
final ArrayList<ItemInfo> addNotAnimated = new ArrayList<>();
if (!addedItemsFinal.isEmpty()) {
ItemInfo info = addedItemsFinal.get(addedItemsFinal.size() - 1);
int lastScreenId = info.screenId;
for (ItemInfo i : addedItemsFinal) {
if (i.screenId == lastScreenId) {
addAnimated.add(i);
} else {
addNotAnimated.add(i);
}
}
}
callbacks.bindAppsAdded(addedWorkspaceScreensFinal,
addNotAnimated, addAnimated);
}
});
}
}
/**
* Returns true if the shortcuts already exists on the workspace. This must be called after
* the workspace has been loaded. We identify a shortcut by its intent.
*/
protected boolean shortcutExists(BgDataModel dataModel, Intent intent, UserHandle user) {
final String compPkgName, intentWithPkg, intentWithoutPkg;
if (intent == null) {
// Skip items with null intents
return true;
}
if (intent.getComponent() != null) {
// If component is not null, an intent with null package will produce
// the same result and should also be a match.
compPkgName = intent.getComponent().getPackageName();
if (intent.getPackage() != null) {
intentWithPkg = intent.toUri(0);
intentWithoutPkg = new Intent(intent).setPackage(null).toUri(0);
} else {
intentWithPkg = new Intent(intent).setPackage(compPkgName).toUri(0);
intentWithoutPkg = intent.toUri(0);
}
} else {
compPkgName = null;
intentWithPkg = intent.toUri(0);
intentWithoutPkg = intent.toUri(0);
}
boolean isLauncherAppTarget = PackageManagerHelper.isLauncherAppTarget(intent);
synchronized (dataModel) {
for (ItemInfo item : dataModel.itemsIdMap) {
if (item instanceof WorkspaceItemInfo) {
WorkspaceItemInfo info = (WorkspaceItemInfo) item;
if (item.getIntent() != null && info.user.equals(user)) {
Intent copyIntent = new Intent(item.getIntent());
copyIntent.setSourceBounds(intent.getSourceBounds());
String s = copyIntent.toUri(0);
if (intentWithPkg.equals(s) || intentWithoutPkg.equals(s)) {
return true;
}
// checking for existing promise icon with same package name
if (isLauncherAppTarget
&& info.isPromise()
&& info.hasStatusFlag(WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON)
&& info.getTargetComponent() != null
&& compPkgName != null
&& compPkgName.equals(info.getTargetComponent().getPackageName())) {
return true;
}
}
}
}
}
return false;
}
/**
* Find a position on the screen for the given size or adds a new screen.
* @return screenId and the coordinates for the item in an int array of size 3.
*/
protected int[] findSpaceForItem( LauncherAppState app, BgDataModel dataModel,
IntArray workspaceScreens, IntArray addedWorkspaceScreensFinal, int spanX, int spanY) {
LongSparseArray<ArrayList<ItemInfo>> screenItems = new LongSparseArray<>();
// Use sBgItemsIdMap as all the items are already loaded.
synchronized (dataModel) {
for (ItemInfo info : dataModel.itemsIdMap) {
if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
ArrayList<ItemInfo> items = screenItems.get(info.screenId);
if (items == null) {
items = new ArrayList<>();
screenItems.put(info.screenId, items);
}
items.add(info);
}
}
}
// Find appropriate space for the item.
int screenId = 0;
int[] cordinates = new int[2];
boolean found = false;
int screenCount = workspaceScreens.size();
// First check the preferred screen.
int preferredScreenIndex = workspaceScreens.isEmpty() ? 0 : 1;
// add start
if (FeatureFlags.REMOVE_DRAWER) {
preferredScreenIndex = 0;
}
// add end
if (preferredScreenIndex < screenCount) {
screenId = workspaceScreens.get(preferredScreenIndex);
found = findNextAvailableIconSpaceInScreen(
app, screenItems.get(screenId), cordinates, spanX, spanY);
}
if (!found) {
// Search on any of the screens starting from the first screen.
for (int screen = 0; screen < screenCount; screen++) {
screenId = workspaceScreens.get(screen);
if (findNextAvailableIconSpaceInScreen(
app, screenItems.get(screenId), cordinates, spanX, spanY)) {
// We found a space for it
found = true;
break;
}
}
}
if (!found) {
// Still no position found. Add a new screen to the end.
screenId = LauncherSettings.Settings.call(app.getContext().getContentResolver(),
LauncherSettings.Settings.METHOD_NEW_SCREEN_ID)
.getInt(LauncherSettings.Settings.EXTRA_VALUE);
// Save the screen id for binding in the workspace
workspaceScreens.add(screenId);
addedWorkspaceScreensFinal.add(screenId);
// If we still can't find an empty space, then God help us all!!!
if (!findNextAvailableIconSpaceInScreen(
app, screenItems.get(screenId), cordinates, spanX, spanY)) {
throw new RuntimeException("Can't find space to add the item");
}
}
return new int[] {screenId, cordinates[0], cordinates[1]};
}
private boolean findNextAvailableIconSpaceInScreen(
LauncherAppState app, ArrayList<ItemInfo> occupiedPos,
int[] xy, int spanX, int spanY) {
InvariantDeviceProfile profile = app.getInvariantDeviceProfile();
GridOccupancy occupied = new GridOccupancy(profile.numColumns, profile.numRows);
if (occupiedPos != null) {
for (ItemInfo r : occupiedPos) {
occupied.markCells(r, true);
}
}
return occupied.findVacantCell(xy, spanX, spanY);
}
}
7.修改BaseModelUpdateTask:
源码路径：packages/apps/launcher3/src/com/android/launcher3/model/BaseModelUpdateTask.java
package com.android.launcher3.model;
import android.util.Log;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.LauncherModel;
import com.android.launcher3.LauncherModel.CallbackTask;
import com.android.launcher3.LauncherModel.ModelUpdateTask;
import com.android.launcher3.model.BgDataModel.Callbacks;
import com.android.launcher3.model.BgDataModel.FixedContainerItems;
import com.android.launcher3.model.data.AppInfo;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.model.data.WorkspaceItemInfo;
import com.android.launcher3.util.ComponentKey;
import com.android.launcher3.util.ItemInfoMatcher;
import com.android.launcher3.widget.model.WidgetsListBaseEntry;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.Executor;
import java.util.stream.Collectors;
/**
* Extension of {@link ModelUpdateTask} with some utility methods
*/
public abstract class BaseModelUpdateTask implements ModelUpdateTask {
private static final boolean DEBUG_TASKS = false;
private static final String TAG = "BaseModelUpdateTask";
private LauncherAppState mApp;
private LauncherModel mModel;
private BgDataModel mDataModel;
private AllAppsList mAllAppsList;
private Executor mUiExecutor;
public void init(LauncherAppState app, LauncherModel model,
BgDataModel dataModel, AllAppsList allAppsList, Executor uiExecutor) {
mApp = app;
mModel = model;
mDataModel = dataModel;
mAllAppsList = allAppsList;
mUiExecutor = uiExecutor;
}
@Override
public final void run() {
if (!mModel.isModelLoaded()) {
if (DEBUG_TASKS) {
Log.d(TAG, "Ignoring model task since loader is pending=" + this);
}
// Loader has not yet run.
//add start
/* if(!FeatureFlags.REMOVE_DRAWER){
return;
} */
//add end
}
execute(mApp, mDataModel, mAllAppsList);
}
/**
* Execute the actual task. Called on the worker thread.
*/
public abstract void execute(
LauncherAppState app, BgDataModel dataModel, AllAppsList apps);
/**
* Schedules a {@param task} to be executed on the current callbacks.
*/
public final void scheduleCallbackTask(final CallbackTask task) {
for (final Callbacks cb : mModel.getCallbacks()) {
mUiExecutor.execute(() -> task.execute(cb));
}
}
public ModelWriter getModelWriter() {
// Updates from model task, do not deal with icon position in hotseat. Also no need to
// verify changes as the ModelTasks always push the changes to callbacks
return mModel.getWriter(false /* hasVerticalHotseat */, false /* verifyChanges */);
}
public void bindUpdatedWorkspaceItems(List<WorkspaceItemInfo> allUpdates) {
// Bind workspace items
List<WorkspaceItemInfo> workspaceUpdates = allUpdates.stream()
.filter(info -> info.id != ItemInfo.NO_ID)
.collect(Collectors.toList());
if (!workspaceUpdates.isEmpty()) {
scheduleCallbackTask(c -> c.bindWorkspaceItemsChanged(workspaceUpdates));
}
// Bind extra items if any
allUpdates.stream()
.mapToInt(info -> info.container)
.distinct()
.mapToObj(mDataModel.extraItems::get)
.filter(Objects::nonNull)
.forEach(this::bindExtraContainerItems);
}
public void bindExtraContainerItems(FixedContainerItems item) {
FixedContainerItems copy = item.clone();
scheduleCallbackTask(c -> c.bindExtraContainerItems(copy));
}
public void bindDeepShortcuts(BgDataModel dataModel) {
final HashMap<ComponentKey, Integer> shortcutMapCopy =
new HashMap<>(dataModel.deepShortcutMap);
scheduleCallbackTask(callbacks -> callbacks.bindDeepShortcutMap(shortcutMapCopy));
}
public void bindUpdatedWidgets(BgDataModel dataModel) {
final ArrayList<WidgetsListBaseEntry> widgets =
dataModel.widgetsModel.getWidgetsListForPicker(mApp.getContext());
scheduleCallbackTask(c -> c.bindAllWidgets(widgets));
}
public void deleteAndBindComponentsRemoved(final ItemInfoMatcher matcher) {
getModelWriter().deleteItemsFromDatabase(matcher);
// Call the components-removed callback
scheduleCallbackTask(c -> c.bindWorkspaceComponentsRemoved(matcher));
}
public void bindApplicationsIfNeeded() {
if (mAllAppsList.getAndResetChangeFlag()) {
AppInfo[] apps = mAllAppsList.copyData();
int flags = mAllAppsList.getFlags();
scheduleCallbackTask(c -> c.bindAllApplications(apps, flags));
}
}
}
8.修改ItemInstallQueue：
源码路径：packages/apps/launcher3/src/com/android/launcher3/model/ItemInstallQueue.java
package com.android.launcher3.model;
import static android.appwidget.AppWidgetManager.EXTRA_APPWIDGET_ID;
import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT;
import static com.android.launcher3.model.data.AppInfo.makeLaunchIntent;
import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.LauncherActivityInfo;
import android.content.pm.LauncherApps;
import android.content.pm.ShortcutInfo;
import android.os.UserHandle;
import android.util.Log;
import android.util.Pair;
import androidx.annotation.Nullable;
import androidx.annotation.WorkerThread;
import com.android.launcher3.InvariantDeviceProfile;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.LauncherSettings.Favorites;
import com.android.launcher3.logging.FileLog;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.model.data.LauncherAppWidgetInfo;
import com.android.launcher3.model.data.WorkspaceItemInfo;
import com.android.launcher3.shortcuts.ShortcutKey;
import com.android.launcher3.shortcuts.ShortcutRequest;
import com.android.launcher3.util.MainThreadInitializedObject;
import com.android.launcher3.util.PersistedItemArray;
import com.android.launcher3.util.Preconditions;
import com.android.launcher3.widget.LauncherAppWidgetProviderInfo;
import java.util.HashSet;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* Class to maintain a queue of pending items to be added to the workspace.
*/
public class ItemInstallQueue {
private static final String LOG = "ItemInstallQueue";
public static final int FLAG_ACTIVITY_PAUSED = 1;
public static final int FLAG_LOADER_RUNNING = 2;
public static final int FLAG_DRAG_AND_DROP = 4;
private static final String TAG = "InstallShortcutReceiver";
// The set of shortcuts that are pending install
private static final String APPS_PENDING_INSTALL = "apps_to_install";
public static final int NEW_SHORTCUT_BOUNCE_DURATION = 450;
public static final int NEW_SHORTCUT_STAGGER_DELAY = 85;
public static MainThreadInitializedObject<ItemInstallQueue> INSTANCE =
new MainThreadInitializedObject<>(ItemInstallQueue::new);
private final PersistedItemArray<PendingInstallShortcutInfo> mStorage =
new PersistedItemArray<>(APPS_PENDING_INSTALL);
private final Context mContext;
// Determines whether to defer installing shortcuts immediately until
// processAllPendingInstalls() is called.
private int mInstallQueueDisabledFlags = 0;
// Only accessed on worker thread
private List<PendingInstallShortcutInfo> mItems;
private ItemInstallQueue(Context context) {
mContext = context;
}
@WorkerThread
private void ensureQueueLoaded() {
Preconditions.assertWorkerThread();
if (mItems == null) {
mItems = mStorage.read(mContext, this::decode);
}
}
@WorkerThread
public void addToQueue(PendingInstallShortcutInfo info) {
ensureQueueLoaded();
if (!mItems.contains(info)) {
mItems.add(info);
mStorage.write(mContext, mItems);
}
}
@WorkerThread
private void flushQueueInBackground() {
Launcher launcher = Launcher.ACTIVITY_TRACKER.getCreatedActivity();
if (launcher == null) {
// Launcher not loaded
return;
}
ensureQueueLoaded();
if (mItems.isEmpty()) {
return;
}
List<Pair<ItemInfo, Object>> installQueue = mItems.stream()
.map(info -> info.getItemInfo(mContext))
.collect(Collectors.toList());
// Add the items and clear queue
if (!installQueue.isEmpty()) {
// add log
launcher.getModel().addAndBindAddedWorkspaceItems(installQueue);
}
mItems.clear();
mStorage.getFile(mContext).delete();
}
/**
* Removes previously added items from the queue.
*/
@WorkerThread
public void removeFromInstallQueue(HashSet<String> packageNames, UserHandle user) {
if (packageNames.isEmpty()) {
return;
}
ensureQueueLoaded();
if (mItems.removeIf(item ->
item.user.equals(user) && packageNames.contains(getIntentPackage(item.intent)))) {
mStorage.write(mContext, mItems);
}
}
/**
* Adds an item to the install queue
*/
public void queueItem(ShortcutInfo info) {
queuePendingShortcutInfo(new PendingInstallShortcutInfo(info));
}
/**
* Adds an item to the install queue
*/
public void queueItem(AppWidgetProviderInfo info, int widgetId) {
queuePendingShortcutInfo(new PendingInstallShortcutInfo(info, widgetId));
}
/**
* Adds an item to the install queue
*/
public void queueItem(String packageName, UserHandle userHandle) {
queuePendingShortcutInfo(new PendingInstallShortcutInfo(packageName, userHandle));
}
/**
* Returns a stream of all pending shortcuts in the queue
*/
@WorkerThread
public Stream<ShortcutKey> getPendingShortcuts(UserHandle user) {
ensureQueueLoaded();
return mItems.stream()
.filter(item -> item.itemType == ITEM_TYPE_DEEP_SHORTCUT && user.equals(item.user))
.map(item -> ShortcutKey.fromIntent(item.intent, user));
}
private void queuePendingShortcutInfo(PendingInstallShortcutInfo info) {
final Exception stackTrace = new Exception();
// Queue the item up for adding if launcher has not loaded properly yet
MODEL_EXECUTOR.post(() -> {
Pair<ItemInfo, Object> itemInfo = info.getItemInfo(mContext);
if (itemInfo == null) {
FileLog.d(LOG,
"Adding PendingInstallShortcutInfo with no attached info to queue.",
stackTrace);
} else {
FileLog.d(LOG,
"Adding PendingInstallShortcutInfo to queue. Attached info: "
+ itemInfo.first,
stackTrace);
}
addToQueue(info);
});
flushInstallQueue();
}
/**
* Pauses the push-to-model flow until unpaused. All items are held in the queue and
* not added to the model.
*/
public void pauseModelPush(int flag) {
mInstallQueueDisabledFlags |= flag;
}
/**
* Adds all the queue items to the model if the use is completely resumed.
*/
public void resumeModelPush(int flag) {
mInstallQueueDisabledFlags &= ~flag;
flushInstallQueue();
}
private void flushInstallQueue() {
if (mInstallQueueDisabledFlags != 0) {
return;
}
MODEL_EXECUTOR.post(this::flushQueueInBackground);
}
private static class PendingInstallShortcutInfo extends ItemInfo {
final Intent intent;
@Nullable ShortcutInfo shortcutInfo;
@Nullable AppWidgetProviderInfo providerInfo;
/**
* Initializes a PendingInstallShortcutInfo to represent a pending launcher target.
*/
public PendingInstallShortcutInfo(String packageName, UserHandle userHandle) {
itemType = Favorites.ITEM_TYPE_APPLICATION;
intent = new Intent().setPackage(packageName);
user = userHandle;
}
/**
* Initializes a PendingInstallShortcutInfo to represent a deep shortcut.
*/
public PendingInstallShortcutInfo(ShortcutInfo info) {
itemType = Favorites.ITEM_TYPE_DEEP_SHORTCUT;
intent = ShortcutKey.makeIntent(info);
user = info.getUserHandle();
shortcutInfo = info;
}
/**
* Initializes a PendingInstallShortcutInfo to represent an app widget.
*/
public PendingInstallShortcutInfo(AppWidgetProviderInfo info, int widgetId) {
itemType = Favorites.ITEM_TYPE_APPWIDGET;
intent = new Intent()
.setComponent(info.provider)
.putExtra(EXTRA_APPWIDGET_ID, widgetId);
user = info.getProfile();
providerInfo = info;
}
@Override
public Intent getIntent() {
return intent;
}
public Pair<ItemInfo, Object> getItemInfo(Context context) {
switch (itemType) {
case ITEM_TYPE_APPLICATION: {
String packageName = intent.getPackage();
List<LauncherActivityInfo> laiList =
context.getSystemService(LauncherApps.class)
.getActivityList(packageName, user);
final WorkspaceItemInfo si = new WorkspaceItemInfo();
si.user = user;
si.itemType = ITEM_TYPE_APPLICATION;
LauncherActivityInfo lai;
boolean usePackageIcon = laiList.isEmpty();
if (usePackageIcon) {
lai = null;
si.intent = makeLaunchIntent(new ComponentName(packageName, ""))
.setPackage(packageName);
si.status |= WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON;
} else {
lai = laiList.get(0);
si.intent = makeLaunchIntent(lai);
}
LauncherAppState.getInstance(context).getIconCache()
.getTitleAndIcon(si, () -> lai, usePackageIcon, false);
return Pair.create(si, null);
}
case ITEM_TYPE_DEEP_SHORTCUT: {
WorkspaceItemInfo itemInfo = new WorkspaceItemInfo(shortcutInfo, context);
LauncherAppState.getInstance(context).getIconCache()
.getShortcutIcon(itemInfo, shortcutInfo);
return Pair.create(itemInfo, shortcutInfo);
}
case ITEM_TYPE_APPWIDGET: {
LauncherAppWidgetProviderInfo info = LauncherAppWidgetProviderInfo
.fromProviderInfo(context, providerInfo);
LauncherAppWidgetInfo widgetInfo = new LauncherAppWidgetInfo(
intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, 0),
info.provider);
InvariantDeviceProfile idp = LauncherAppState.getIDP(context);
widgetInfo.minSpanX = info.minSpanX;
widgetInfo.minSpanY = info.minSpanY;
widgetInfo.spanX = Math.min(info.spanX, idp.numColumns);
widgetInfo.spanY = Math.min(info.spanY, idp.numRows);
widgetInfo.user = user;
return Pair.create(widgetInfo, providerInfo);
}
}
return null;
}
@Override
public boolean equals(Object obj) {
if (obj instanceof PendingInstallShortcutInfo) {
PendingInstallShortcutInfo other = (PendingInstallShortcutInfo) obj;
boolean userMatches = user.equals(other.user);
boolean itemTypeMatches = itemType == other.itemType;
boolean intentMatches = intent.toUri(0).equals(other.intent.toUri(0));
boolean shortcutInfoMatches = shortcutInfo == null
? other.shortcutInfo == null
: other.shortcutInfo != null
&& shortcutInfo.getId().equals(other.shortcutInfo.getId())
&& shortcutInfo.getPackage().equals(other.shortcutInfo.getPackage());
boolean providerInfoMatches = providerInfo == null
? other.providerInfo == null
: other.providerInfo != null
&& providerInfo.provider.equals(other.providerInfo.provider);
return userMatches
&& itemTypeMatches
&& intentMatches
&& shortcutInfoMatches
&& providerInfoMatches;
}
return false;
}
}
private static String getIntentPackage(Intent intent) {
return intent.getComponent() == null
? intent.getPackage() : intent.getComponent().getPackageName();
}
private PendingInstallShortcutInfo decode(int itemType, UserHandle user, Intent intent) {
switch (itemType) {
case Favorites.ITEM_TYPE_APPLICATION:
return new PendingInstallShortcutInfo(intent.getPackage(), user);
case Favorites.ITEM_TYPE_DEEP_SHORTCUT: {
List<ShortcutInfo> si = ShortcutKey.fromIntent(intent, user)
.buildRequest(mContext)
.query(ShortcutRequest.ALL);
if (si.isEmpty()) {
return null;
} else {
return new PendingInstallShortcutInfo(si.get(0));
}
}
case Favorites.ITEM_TYPE_APPWIDGET: {
int widgetId = intent.getIntExtra(EXTRA_APPWIDGET_ID, 0);
AppWidgetProviderInfo info =
AppWidgetManager.getInstance(mContext).getAppWidgetInfo(widgetId);
if (info == null || !info.provider.equals(intent.getComponent())
|| !info.getProfile().equals(user)) {
return null;
}
return new PendingInstallShortcutInfo(info, widgetId);
}
default:
Log.e(TAG, "Unknown item type");
}
return null;
}
}
9.修改LoaderTask:
源码路径：packages/apps/launcher3/src/com/android/launcher3/model/LoaderTask.java
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3.model;
import static com.android.launcher3.config.FeatureFlags.MULTI_DB_GRID_MIRATION_ALGO;
import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_HAS_SHORTCUT_PERMISSION;
import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_QUIET_MODE_CHANGE_PERMISSION;
import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_QUIET_MODE_ENABLED;
import static com.android.launcher3.model.ModelUtils.filterCurrentWorkspaceItems;
import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_LOCKED_USER;
import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_SAFEMODE;
import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_SUSPENDED;
import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
import static com.android.launcher3.util.PackageManagerHelper.hasShortcutsPermission;
import static com.android.launcher3.util.PackageManagerHelper.isSystemApp;
import android.annotation.SuppressLint;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.LauncherActivityInfo;
import android.content.pm.LauncherApps;
import android.content.pm.PackageInstaller;
import android.content.pm.PackageInstaller.SessionInfo;
import android.content.pm.PackageManager;
import android.content.pm.ShortcutInfo;
import android.graphics.Point;
import android.net.Uri;
import android.os.Bundle;
import android.os.UserHandle;
import android.os.UserManager;
import android.text.TextUtils;
import android.util.ArrayMap;
import android.util.Log;
import android.util.LongSparseArray;
import android.util.TimingLogger;
import android.util.Pair;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.InvariantDeviceProfile;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.LauncherModel;
import com.android.launcher3.LauncherSettings;
import com.android.launcher3.Utilities;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.folder.Folder;
import com.android.launcher3.folder.FolderGridOrganizer;
import com.android.launcher3.folder.FolderNameInfos;
import com.android.launcher3.folder.FolderNameProvider;
import com.android.launcher3.icons.ComponentWithLabelAndIcon;
import com.android.launcher3.icons.ComponentWithLabelAndIcon.ComponentWithIconCachingLogic;
import com.android.launcher3.icons.IconCache;
import com.android.launcher3.icons.LauncherActivityCachingLogic;
import com.android.launcher3.icons.ShortcutCachingLogic;
import com.android.launcher3.icons.cache.IconCacheUpdateHandler;
import com.android.launcher3.logging.FileLog;
import com.android.launcher3.model.data.AppInfo;
import com.android.launcher3.model.data.FolderInfo;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.model.data.ItemInfoWithIcon;
import com.android.launcher3.model.data.LauncherAppWidgetInfo;
import com.android.launcher3.model.data.WorkspaceItemInfo;
import com.android.launcher3.pm.InstallSessionHelper;
import com.android.launcher3.pm.PackageInstallInfo;
import com.android.launcher3.pm.UserCache;
import com.android.launcher3.provider.ImportDataTask;
import com.android.launcher3.qsb.QsbContainerView;
import com.android.launcher3.shortcuts.ShortcutKey;
import com.android.launcher3.shortcuts.ShortcutRequest;
import com.android.launcher3.shortcuts.ShortcutRequest.QueryResult;
import com.android.launcher3.util.ComponentKey;
import com.android.launcher3.util.IOUtils;
import com.android.launcher3.util.LooperIdleLock;
import com.android.launcher3.util.PackageManagerHelper;
import com.android.launcher3.util.PackageUserKey;
import com.android.launcher3.util.TraceHelper;
import com.android.launcher3.widget.LauncherAppWidgetProviderInfo;
import com.android.launcher3.widget.WidgetManagerHelper;
import com.android.launcher3.allapps.AppInfoComparator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CancellationException;
/**
* Runnable for the thread that loads the contents of the launcher:
* - workspace icons
* - widgets
* - all apps icons
* - deep shortcuts within apps
*/
public class LoaderTask implements Runnable {
private static final String TAG = "LoaderTask";
private static final boolean DEBUG = true;
protected final LauncherAppState mApp;
private final AllAppsList mBgAllAppsList;
protected final BgDataModel mBgDataModel;
private final ModelDelegate mModelDelegate;
private FirstScreenBroadcast mFirstScreenBroadcast;
private final LoaderResults mResults;
private final LauncherApps mLauncherApps;
private final UserManager mUserManager;
private final UserCache mUserCache;
private final InstallSessionHelper mSessionHelper;
private final IconCache mIconCache;
private final UserManagerState mUserManagerState = new UserManagerState();
protected final Map<ComponentKey, AppWidgetProviderInfo> mWidgetProvidersMap = new ArrayMap<>();
private boolean mStopped;
private final Set<PackageUserKey> mPendingPackages = new HashSet<>();
private boolean mItemsDeleted = false;
private String mDbName;
public LoaderTask(LauncherAppState app, AllAppsList bgAllAppsList, BgDataModel dataModel,
ModelDelegate modelDelegate, LoaderResults results) {
mApp = app;
mBgAllAppsList = bgAllAppsList;
mBgDataModel = dataModel;
mModelDelegate = modelDelegate;
mResults = results;
mLauncherApps = mApp.getContext().getSystemService(LauncherApps.class);
mUserManager = mApp.getContext().getSystemService(UserManager.class);
mUserCache = UserCache.INSTANCE.get(mApp.getContext());
mSessionHelper = InstallSessionHelper.INSTANCE.get(mApp.getContext());
mIconCache = mApp.getIconCache();
}
protected synchronized void waitForIdle() {
// Wait until the either we're stopped or the other threads are done.
// This way we don't start loading all apps until the workspace has settled
// down.
LooperIdleLock idleLock = mResults.newIdleLock(this);
// Just in case mFlushingWorkerThread changes but we aren't woken up,
// wait no longer than 1sec at a time
while (!mStopped && idleLock.awaitLocked(1000));
}
private synchronized void verifyNotStopped() throws CancellationException {
if (mStopped) {
throw new CancellationException("Loader stopped");
}
}
private void sendFirstScreenActiveInstallsBroadcast() {
ArrayList<ItemInfo> firstScreenItems = new ArrayList<>();
ArrayList<ItemInfo> allItems = mBgDataModel.getAllWorkspaceItems();
// Screen set is never empty
final int firstScreen = mBgDataModel.collectWorkspaceScreens().get(0);
filterCurrentWorkspaceItems(firstScreen, allItems, firstScreenItems,
new ArrayList<>() /* otherScreenItems are ignored */);
mFirstScreenBroadcast.sendBroadcasts(mApp.getContext(), firstScreenItems);
}
public void run() {
synchronized (this) {
// Skip fast if we are already stopped.
if (mStopped) {
return;
}
}
Object traceToken = TraceHelper.INSTANCE.beginSection(TAG);
TimingLogger logger = new TimingLogger(TAG, "run");
try (LauncherModel.LoaderTransaction transaction = mApp.getModel().beginLoader(this)) {
List<ShortcutInfo> allShortcuts = new ArrayList<>();
loadWorkspace(allShortcuts);
logASplit(logger, "loadWorkspace");
// Sanitize data re-syncs widgets/shortcuts based on the workspace loaded from db.
// sanitizeData should not be invoked if the workspace is loaded from a db different
// from the main db as defined in the invariant device profile.
// (e.g. both grid preview and minimal device mode uses a different db)
if (mApp.getInvariantDeviceProfile().dbFile.equals(mDbName)) {
verifyNotStopped();
sanitizeData();
logASplit(logger, "sanitizeData");
}
verifyNotStopped();
mResults.bindWorkspace();
logASplit(logger, "bindWorkspace");
mModelDelegate.workspaceLoadComplete();
// Notify the installer packages of packages with active installs on the first screen.
sendFirstScreenActiveInstallsBroadcast();
logASplit(logger, "sendFirstScreenActiveInstallsBroadcast");
// Take a break
waitForIdle();
logASplit(logger, "step 1 complete");
verifyNotStopped();
// second step
List<LauncherActivityInfo> allActivityList = loadAllApps();
logASplit(logger, "loadAllApps");
// add start
if (FeatureFlags.REMOVE_DRAWER) {
bindAllAppsToWorkspace();
}
// add end
verifyNotStopped();
mResults.bindAllApps();
logASplit(logger, "bindAllApps");
verifyNotStopped();
IconCacheUpdateHandler updateHandler = mIconCache.getUpdateHandler();
setIgnorePackages(updateHandler);
updateHandler.updateIcons(allActivityList,
LauncherActivityCachingLogic.newInstance(mApp.getContext()),
mApp.getModel()::onPackageIconsUpdated);
logASplit(logger, "update icon cache");
if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
verifyNotStopped();
logASplit(logger, "save shortcuts in icon cache");
updateHandler.updateIcons(allShortcuts, new ShortcutCachingLogic(),
mApp.getModel()::onPackageIconsUpdated);
}
// Take a break
waitForIdle();
logASplit(logger, "step 2 complete");
verifyNotStopped();
// third step
List<ShortcutInfo> allDeepShortcuts = loadDeepShortcuts();
logASplit(logger, "loadDeepShortcuts");
verifyNotStopped();
mResults.bindDeepShortcuts();
logASplit(logger, "bindDeepShortcuts");
if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
verifyNotStopped();
logASplit(logger, "save deep shortcuts in icon cache");
updateHandler.updateIcons(allDeepShortcuts,
new ShortcutCachingLogic(), (pkgs, user) -> { });
}
// Take a break
waitForIdle();
logASplit(logger, "step 3 complete");
verifyNotStopped();
// fourth step
List<ComponentWithLabelAndIcon> allWidgetsList =
mBgDataModel.widgetsModel.update(mApp, null);
logASplit(logger, "load widgets");
verifyNotStopped();
mResults.bindWidgets();
logASplit(logger, "bindWidgets");
verifyNotStopped();
updateHandler.updateIcons(allWidgetsList,
new ComponentWithIconCachingLogic(mApp.getContext(), true),
mApp.getModel()::onWidgetLabelsUpdated);
logASplit(logger, "save widgets in icon cache");
// fifth step
if (FeatureFlags.FOLDER_NAME_SUGGEST.get()) {
loadFolderNames();
}
verifyNotStopped();
updateHandler.finish();
logASplit(logger, "finish icon update");
mModelDelegate.modelLoadComplete();
transaction.commit();
} catch (CancellationException e) {
// Loader stopped, ignore
logASplit(logger, "Cancelled");
} finally {
logger.dumpToLog();
}
TraceHelper.INSTANCE.endSection(traceToken);
}
public synchronized void stopLocked() {
mStopped = true;
this.notify();
}
private void loadWorkspace(List<ShortcutInfo> allDeepShortcuts) {
loadWorkspace(allDeepShortcuts, LauncherSettings.Favorites.CONTENT_URI,
null /* selection */);
}
protected void loadWorkspace(List<ShortcutInfo> allDeepShortcuts, Uri contentUri,
String selection) {
final Context context = mApp.getContext();
final ContentResolver contentResolver = context.getContentResolver();
final PackageManagerHelper pmHelper = new PackageManagerHelper(context);
final boolean isSafeMode = pmHelper.isSafeMode();
final boolean isSdCardReady = Utilities.isBootCompleted();
final WidgetManagerHelper widgetHelper = new WidgetManagerHelper(context);
boolean clearDb = false;
try {
ImportDataTask.performImportIfPossible(context);
} catch (Exception e) {
// Migration failed. Clear workspace.
clearDb = true;
}
if (!clearDb && (MULTI_DB_GRID_MIRATION_ALGO.get()
? !GridSizeMigrationTaskV2.migrateGridIfNeeded(context)
: !GridSizeMigrationTask.migrateGridIfNeeded(context))) {
// Migration failed. Clear workspace.
clearDb = true;
}
if (clearDb) {
Log.d(TAG, "loadWorkspace: resetting launcher database");
LauncherSettings.Settings.call(contentResolver,
LauncherSettings.Settings.METHOD_CREATE_EMPTY_DB);
}
Log.d(TAG, "loadWorkspace: loading default favorites");
LauncherSettings.Settings.call(contentResolver,
LauncherSettings.Settings.METHOD_LOAD_DEFAULT_FAVORITES);
synchronized (mBgDataModel) {
mBgDataModel.clear();
mPendingPackages.clear();
final HashMap<PackageUserKey, SessionInfo> installingPkgs =
mSessionHelper.getActiveSessions();
installingPkgs.forEach(mApp.getIconCache()::updateSessionCache);
final PackageUserKey tempPackageKey = new PackageUserKey(null, null);
mFirstScreenBroadcast = new FirstScreenBroadcast(installingPkgs);
Map<ShortcutKey, ShortcutInfo> shortcutKeyToPinnedShortcuts = new HashMap<>();
final LoaderCursor c = new LoaderCursor(
contentResolver.query(contentUri, null, selection, null, null), contentUri,
mApp, mUserManagerState);
final Bundle extras = c.getExtras();
mDbName = extras == null
? null : extras.getString(LauncherSettings.Settings.EXTRA_DB_NAME);
try {
final int appWidgetIdIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.APPWIDGET_ID);
final int appWidgetProviderIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.APPWIDGET_PROVIDER);
final int spanXIndex = c.getColumnIndexOrThrow
(LauncherSettings.Favorites.SPANX);
final int spanYIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.SPANY);
final int rankIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.RANK);
final int optionsIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.OPTIONS);
final int sourceContainerIndex = c.getColumnIndexOrThrow(
LauncherSettings.Favorites.APPWIDGET_SOURCE);
final LongSparseArray<Boolean> unlockedUsers = new LongSparseArray<>();
mUserManagerState.init(mUserCache, mUserManager);
for (UserHandle user : mUserCache.getUserProfiles()) {
long serialNo = mUserCache.getSerialNumberForUser(user);
boolean userUnlocked = mUserManager.isUserUnlocked(user);
// We can only query for shortcuts when the user is unlocked.
if (userUnlocked) {
QueryResult pinnedShortcuts = new ShortcutRequest(context, user)
.query(ShortcutRequest.PINNED);
if (pinnedShortcuts.wasSuccess()) {
for (ShortcutInfo shortcut : pinnedShortcuts) {
shortcutKeyToPinnedShortcuts.put(ShortcutKey.fromInfo(shortcut),
shortcut);
}
} else {
// Shortcut manager can fail due to some race condition when the
// lock state changes too frequently. For the purpose of the loading
// shortcuts, consider the user is still locked.
userUnlocked = false;
}
}
unlockedUsers.put(serialNo, userUnlocked);
}
WorkspaceItemInfo info;
LauncherAppWidgetInfo appWidgetInfo;
LauncherAppWidgetProviderInfo widgetProviderInfo;
Intent intent;
String targetPkg;
while (!mStopped && c.moveToNext()) {
try {
if (c.user == null) {
// User has been deleted, remove the item.
c.markDeleted("User has been deleted");
continue;
}
boolean allowMissingTarget = false;
switch (c.itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
intent = c.parseIntent();
if (intent == null) {
c.markDeleted("Invalid or null intent");
continue;
}
int disabledState = mUserManagerState.isUserQuiet(c.serialNumber)
? WorkspaceItemInfo.FLAG_DISABLED_QUIET_USER : 0;
ComponentName cn = intent.getComponent();
targetPkg = cn == null ? intent.getPackage() : cn.getPackageName();
if (TextUtils.isEmpty(targetPkg) &&
c.itemType != LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) {
c.markDeleted("Only legacy shortcuts can have null package");
continue;
}
// If there is no target package, its an implicit intent
// (legacy shortcut) which is always valid
boolean validTarget = TextUtils.isEmpty(targetPkg) ||
mLauncherApps.isPackageEnabled(targetPkg, c.user);
// If it's a deep shortcut, we'll use pinned shortcuts to restore it
if (cn != null && validTarget && c.itemType
!= LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
// If the apk is present and the shortcut points to a specific
// component.
// If the component is already present
if (mLauncherApps.isActivityEnabled(cn, c.user)) {
// no special handling necessary for this item
c.markRestored();
} else {
// Gracefully try to find a fallback activity.
intent = pmHelper.getAppLaunchIntent(targetPkg, c.user);
if (intent != null) {
c.restoreFlag = 0;
c.updater().put(
LauncherSettings.Favorites.INTENT,
intent.toUri(0)).commit();
cn = intent.getComponent();
} else {
c.markDeleted("Unable to find a launch target");
continue;
}
}
}
// else if cn == null => can't infer much, leave it
// else if !validPkg => could be restored icon or missing sd-card
if (!TextUtils.isEmpty(targetPkg) && !validTarget) {
// Points to a valid app (superset of cn != null) but the apk
// is not available.
if (c.restoreFlag != 0) {
// Package is not yet available but might be
// installed later.
FileLog.d(TAG, "package not yet restored: " + targetPkg);
tempPackageKey.update(targetPkg, c.user);
if (c.hasRestoreFlag(WorkspaceItemInfo.FLAG_RESTORE_STARTED)) {
// Restore has started once.
} else if (installingPkgs.containsKey(tempPackageKey)) {
// App restore has started. Update the flag
c.restoreFlag |= WorkspaceItemInfo.FLAG_RESTORE_STARTED;
c.updater().put(LauncherSettings.Favorites.RESTORED,
c.restoreFlag).commit();
} else {
c.markDeleted("Unrestored app removed: " + targetPkg);
continue;
}
} else if (pmHelper.isAppOnSdcard(targetPkg, c.user)) {
// Package is present but not available.
disabledState |= WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE;
// Add the icon on the workspace anyway.
allowMissingTarget = true;
} else if (!isSdCardReady) {
// SdCard is not ready yet. Package might get available,
// once it is ready.
Log.d(TAG, "Missing pkg, will check later: " + targetPkg);
mPendingPackages.add(new PackageUserKey(targetPkg, c.user));
// Add the icon on the workspace anyway.
allowMissingTarget = true;
} else {
// Do not wait for external media load anymore.
c.markDeleted("Invalid package removed: " + targetPkg);
continue;
}
}
if ((c.restoreFlag & WorkspaceItemInfo.FLAG_SUPPORTS_WEB_UI) != 0) {
validTarget = false;
}
if (validTarget) {
// The shortcut points to a valid target (either no target
// or something which is ready to be used)
c.markRestored();
}
boolean useLowResIcon = !c.isOnWorkspaceOrHotseat();
if (c.restoreFlag != 0) {
// Already verified above that user is same as default user
info = c.getRestoredItemInfo(intent);
} else if (c.itemType ==
LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) {
info = c.getAppShortcutInfo(
intent, allowMissingTarget, useLowResIcon);
} else if (c.itemType ==
LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
ShortcutKey key = ShortcutKey.fromIntent(intent, c.user);
if (unlockedUsers.get(c.serialNumber)) {
ShortcutInfo pinnedShortcut =
shortcutKeyToPinnedShortcuts.get(key);
if (pinnedShortcut == null) {
// The shortcut is no longer valid.
c.markDeleted("Pinned shortcut not found");
continue;
}
info = new WorkspaceItemInfo(pinnedShortcut, context);
// If the pinned deep shortcut is no longer published,
// use the last saved icon instead of the default.
mIconCache.getShortcutIcon(info, pinnedShortcut, c::loadIcon);
if (pmHelper.isAppSuspended(
pinnedShortcut.getPackage(), info.user)) {
info.runtimeStatusFlags |= FLAG_DISABLED_SUSPENDED;
}
intent = info.getIntent();
allDeepShortcuts.add(pinnedShortcut);
} else {
// Create a shortcut info in disabled mode for now.
info = c.loadSimpleWorkspaceItem();
info.runtimeStatusFlags |= FLAG_DISABLED_LOCKED_USER;
}
} else { // item type == ITEM_TYPE_SHORTCUT
info = c.loadSimpleWorkspaceItem();
// Shortcuts are only available on the primary profile
if (!TextUtils.isEmpty(targetPkg)
&& pmHelper.isAppSuspended(targetPkg, c.user)) {
disabledState |= FLAG_DISABLED_SUSPENDED;
}
// App shortcuts that used to be automatically added to Launcher
// didn't always have the correct intent flags set, so do that
// here
if (intent.getAction() != null &&
intent.getCategories() != null &&
intent.getAction().equals(Intent.ACTION_MAIN) &&
intent.getCategories().contains(Intent.CATEGORY_LAUNCHER)) {
intent.addFlags(
Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
}
}
if (info != null) {
c.applyCommonProperties(info);
info.intent = intent;
info.rank = c.getInt(rankIndex);
info.spanX = 1;
info.spanY = 1;
info.runtimeStatusFlags |= disabledState;
if (isSafeMode && !isSystemApp(context, intent)) {
info.runtimeStatusFlags |= FLAG_DISABLED_SAFEMODE;
}
LauncherActivityInfo activityInfo = c.getLauncherActivityInfo();
if (activityInfo != null) {
info.setProgressLevel(
PackageManagerHelper
.getLoadingProgress(activityInfo),
PackageInstallInfo.STATUS_INSTALLED_DOWNLOADING);
}
if (c.restoreFlag != 0 && !TextUtils.isEmpty(targetPkg)) {
tempPackageKey.update(targetPkg, c.user);
SessionInfo si = installingPkgs.get(tempPackageKey);
if (si == null) {
info.runtimeStatusFlags &=
~ItemInfoWithIcon.FLAG_INSTALL_SESSION_ACTIVE;
} else if (activityInfo == null) {
int installProgress = (int) (si.getProgress() * 100);
info.setProgressLevel(
installProgress,
PackageInstallInfo.STATUS_INSTALLING);
}
}
c.checkAndAddItem(info, mBgDataModel);
} else {
throw new RuntimeException("Unexpected null WorkspaceItemInfo");
}
break;
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
FolderInfo folderInfo = mBgDataModel.findOrMakeFolder(c.id);
c.applyCommonProperties(folderInfo);
// Do not trim the folder label, as is was set by the user.
folderInfo.title = c.getString(c.titleIndex);
folderInfo.spanX = 1;
folderInfo.spanY = 1;
folderInfo.options = c.getInt(optionsIndex);
// no special handling required for restored folders
c.markRestored();
c.checkAndAddItem(folderInfo, mBgDataModel);
break;
case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
if (WidgetsModel.GO_DISABLE_WIDGETS) {
c.markDeleted("Only legacy shortcuts can have null package");
continue;
}
// Follow through
case LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET:
// Read all Launcher-specific widget details
boolean customWidget = c.itemType ==
LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET;
int appWidgetId = c.getInt(appWidgetIdIndex);
String savedProvider = c.getString(appWidgetProviderIndex);
final ComponentName component;
boolean isSearchWidget = (c.getInt(optionsIndex)
& LauncherAppWidgetInfo.OPTION_SEARCH_WIDGET) != 0;
if (isSearchWidget) {
component = QsbContainerView.getSearchComponentName(context);
if (component == null) {
c.markDeleted("Discarding SearchWidget without packagename ");
continue;
}
} else {
component = ComponentName.unflattenFromString(savedProvider);
}
final boolean isIdValid = !c.hasRestoreFlag(
LauncherAppWidgetInfo.FLAG_ID_NOT_VALID);
final boolean wasProviderReady = !c.hasRestoreFlag(
LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY);
ComponentKey providerKey = new ComponentKey(component, c.user);
if (!mWidgetProvidersMap.containsKey(providerKey)) {
mWidgetProvidersMap.put(providerKey,
widgetHelper.findProvider(component, c.user));
}
final AppWidgetProviderInfo provider =
mWidgetProvidersMap.get(providerKey);
final boolean isProviderReady = isValidProvider(provider);
if (!isSafeMode && !customWidget &&
wasProviderReady && !isProviderReady) {
c.markDeleted(
"Deleting widget that isn't installed anymore: "
+ provider);
} else {
if (isProviderReady) {
appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId,
provider.provider);
// The provider is available. So the widget is either
// available or not available. We do not need to track
// any future restore updates.
int status = c.restoreFlag &
~LauncherAppWidgetInfo.FLAG_RESTORE_STARTED &
~LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY;
if (!wasProviderReady) {
// If provider was not previously ready, update the
// status and UI flag.
// Id would be valid only if the widget restore broadcast was received.
if (isIdValid) {
status |= LauncherAppWidgetInfo.FLAG_UI_NOT_READY;
}
}
appWidgetInfo.restoreStatus = status;
} else {
Log.v(TAG, "Widget restore pending id=" + c.id
+ " appWidgetId=" + appWidgetId
+ " status =" + c.restoreFlag);
appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId,
component);
appWidgetInfo.restoreStatus = c.restoreFlag;
tempPackageKey.update(component.getPackageName(), c.user);
SessionInfo si =
installingPkgs.get(tempPackageKey);
Integer installProgress = si == null
? null
: (int) (si.getProgress() * 100);
if (c.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_RESTORE_STARTED)) {
// Restore has started once.
} else if (installProgress != null) {
// App restore has started. Update the flag
appWidgetInfo.restoreStatus |=
LauncherAppWidgetInfo.FLAG_RESTORE_STARTED;
} else if (!isSafeMode) {
c.markDeleted("Unrestored widget removed: " + component);
continue;
}
appWidgetInfo.installProgress =
installProgress == null ? 0 : installProgress;
}
if (appWidgetInfo.hasRestoreFlag(
LauncherAppWidgetInfo.FLAG_DIRECT_CONFIG)) {
appWidgetInfo.bindOptions = c.parseIntent();
}
c.applyCommonProperties(appWidgetInfo);
appWidgetInfo.spanX = c.getInt(spanXIndex);
appWidgetInfo.spanY = c.getInt(spanYIndex);
appWidgetInfo.options = c.getInt(optionsIndex);
appWidgetInfo.user = c.user;
appWidgetInfo.sourceContainer = c.getInt(sourceContainerIndex);
if (appWidgetInfo.spanX <= 0 || appWidgetInfo.spanY <= 0) {
c.markDeleted("Widget has invalid size: "
+ appWidgetInfo.spanX + "x" + appWidgetInfo.spanY);
continue;
}
widgetProviderInfo =
widgetHelper.getLauncherAppWidgetInfo(appWidgetId);
if (widgetProviderInfo != null
&& (appWidgetInfo.spanX < widgetProviderInfo.minSpanX
|| appWidgetInfo.spanY < widgetProviderInfo.minSpanY)) {
FileLog.d(TAG, "Widget " + widgetProviderInfo.getComponent()
+ " minSizes not meet: span=" + appWidgetInfo.spanX
+ "x" + appWidgetInfo.spanY + " minSpan="
+ widgetProviderInfo.minSpanX + "x"
+ widgetProviderInfo.minSpanY);
logWidgetInfo(mApp.getInvariantDeviceProfile(),
widgetProviderInfo);
}
if (!c.isOnWorkspaceOrHotseat()) {
c.markDeleted("Widget found where container != " +
"CONTAINER_DESKTOP nor CONTAINER_HOTSEAT - ignoring!");
continue;
}
if (!customWidget) {
String providerName =
appWidgetInfo.providerName.flattenToString();
if (!providerName.equals(savedProvider) ||
(appWidgetInfo.restoreStatus != c.restoreFlag)) {
c.updater()
.put(LauncherSettings.Favorites.APPWIDGET_PROVIDER,
providerName)
.put(LauncherSettings.Favorites.RESTORED,
appWidgetInfo.restoreStatus)
.commit();
}
}
if (appWidgetInfo.restoreStatus !=
LauncherAppWidgetInfo.RESTORE_COMPLETED) {
appWidgetInfo.pendingItemInfo = WidgetsModel.newPendingItemInfo(
appWidgetInfo.providerName);
appWidgetInfo.pendingItemInfo.user = appWidgetInfo.user;
mIconCache.getTitleAndIconForApp(
appWidgetInfo.pendingItemInfo, false);
}
c.checkAndAddItem(appWidgetInfo, mBgDataModel);
}
break;
}
} catch (Exception e) {
Log.e(TAG, "Desktop items loading interrupted", e);
}
}
} finally {
IOUtils.closeSilently(c);
}
// Load delegate items
mModelDelegate.loadItems(mUserManagerState, shortcutKeyToPinnedShortcuts);
// Break early if we've stopped loading
if (mStopped) {
mBgDataModel.clear();
return;
}
// Remove dead items
mItemsDeleted = c.commitDeleted();
// Sort the folder items, update ranks, and make sure all preview items are high res.
FolderGridOrganizer verifier =
new FolderGridOrganizer(mApp.getInvariantDeviceProfile());
for (FolderInfo folder : mBgDataModel.folders) {
Collections.sort(folder.contents, Folder.ITEM_POS_COMPARATOR);
verifier.setFolderInfo(folder);
int size = folder.contents.size();
// Update ranks here to ensure there are no gaps caused by removed folder items.
// Ranks are the source of truth for folder items, so cellX and cellY can be ignored
// for now. Database will be updated once user manually modifies folder.
for (int rank = 0; rank < size; ++rank) {
WorkspaceItemInfo info = folder.contents.get(rank);
info.rank = rank;
if (info.usingLowResIcon()
&& info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION
&& verifier.isItemInPreview(info.rank)) {
mIconCache.getTitleAndIcon(info, false);
}
}
}
c.commitRestoredItems();
}
}
private void setIgnorePackages(IconCacheUpdateHandler updateHandler) {
// Ignore packages which have a promise icon.
synchronized (mBgDataModel) {
for (ItemInfo info : mBgDataModel.itemsIdMap) {
if (info instanceof WorkspaceItemInfo) {
WorkspaceItemInfo si = (WorkspaceItemInfo) info;
if (si.isPromise() && si.getTargetComponent() != null) {
updateHandler.addPackagesToIgnore(
si.user, si.getTargetComponent().getPackageName());
}
} else if (info instanceof LauncherAppWidgetInfo) {
LauncherAppWidgetInfo lawi = (LauncherAppWidgetInfo) info;
if (lawi.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY)) {
updateHandler.addPackagesToIgnore(
lawi.user, lawi.providerName.getPackageName());
}
}
}
}
}
private void sanitizeData() {
Context context = mApp.getContext();
ContentResolver contentResolver = context.getContentResolver();
if (mItemsDeleted) {
// Remove any empty folder
int[] deletedFolderIds = LauncherSettings.Settings
.call(contentResolver,
LauncherSettings.Settings.METHOD_DELETE_EMPTY_FOLDERS)
.getIntArray(LauncherSettings.Settings.EXTRA_VALUE);
synchronized (mBgDataModel) {
for (int folderId : deletedFolderIds) {
mBgDataModel.workspaceItems.remove(mBgDataModel.folders.get(folderId));
mBgDataModel.folders.remove(folderId);
mBgDataModel.itemsIdMap.remove(folderId);
}
}
}
// Remove any ghost widgets
LauncherSettings.Settings.call(contentResolver,
LauncherSettings.Settings.METHOD_REMOVE_GHOST_WIDGETS);
// Update pinned state of model shortcuts
mBgDataModel.updateShortcutPinnedState(context);
if (!Utilities.isBootCompleted() && !mPendingPackages.isEmpty()) {
context.registerReceiver(
new SdCardAvailableReceiver(mApp, mPendingPackages),
new IntentFilter(Intent.ACTION_BOOT_COMPLETED),
null,
MODEL_EXECUTOR.getHandler());
}
}
private List<LauncherActivityInfo> loadAllApps() {
final List<UserHandle> profiles = mUserCache.getUserProfiles();
List<LauncherActivityInfo> allActivityList = new ArrayList<>();
// Clear the list of apps
mBgAllAppsList.clear();
for (UserHandle user : profiles) {
// Query for the set of apps
final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);
// Fail if we don't have any apps
// TODO: Fix this. Only fail for the current user.
if (apps == null || apps.isEmpty()) {
return allActivityList;
}
boolean quietMode = mUserManagerState.isUserQuiet(user);
// Create the ApplicationInfos
for (int i = 0; i < apps.size(); i++) {
LauncherActivityInfo app = apps.get(i);
// This builds the icon bitmaps.
mBgAllAppsList.add(new AppInfo(app, user, quietMode), app);
}
allActivityList.addAll(apps);
}
if (FeatureFlags.PROMISE_APPS_IN_ALL_APPS.get()) {
// get all active sessions and add them to the all apps list
for (PackageInstaller.SessionInfo info :
mSessionHelper.getAllVerifiedSessions()) {
mBgAllAppsList.addPromiseApp(mApp.getContext(),
PackageInstallInfo.fromInstallingState(info));
}
}
mBgAllAppsList.setFlags(FLAG_QUIET_MODE_ENABLED,
mUserManagerState.isAnyProfileQuietModeEnabled());
mBgAllAppsList.setFlags(FLAG_HAS_SHORTCUT_PERMISSION,
hasShortcutsPermission(mApp.getContext()));
mBgAllAppsList.setFlags(FLAG_QUIET_MODE_CHANGE_PERMISSION,
mApp.getContext().checkSelfPermission("android.permission.MODIFY_QUIET_MODE")
== PackageManager.PERMISSION_GRANTED);
mBgAllAppsList.getAndResetChangeFlag();
return allActivityList;
}
private List<ShortcutInfo> loadDeepShortcuts() {
List<ShortcutInfo> allShortcuts = new ArrayList<>();
mBgDataModel.deepShortcutMap.clear();
if (mBgAllAppsList.hasShortcutHostPermission()) {
for (UserHandle user : mUserCache.getUserProfiles()) {
if (mUserManager.isUserUnlocked(user)) {
List<ShortcutInfo> shortcuts = new ShortcutRequest(mApp.getContext(), user)
.query(ShortcutRequest.ALL);
allShortcuts.addAll(shortcuts);
mBgDataModel.updateDeepShortcutCounts(null, user, shortcuts);
}
}
}
return allShortcuts;
}
private void loadFolderNames() {
FolderNameProvider provider = FolderNameProvider.newInstance(mApp.getContext(),
mBgAllAppsList.data, mBgDataModel.folders);
synchronized (mBgDataModel) {
for (int i = 0; i < mBgDataModel.folders.size(); i++) {
FolderNameInfos suggestionInfos = new FolderNameInfos();
FolderInfo info = mBgDataModel.folders.valueAt(i);
if (info.suggestedFolderNames == null) {
provider.getSuggestedFolderName(mApp.getContext(), info.contents,
suggestionInfos);
info.suggestedFolderNames = suggestionInfos;
}
}
}
}
public static boolean isValidProvider(AppWidgetProviderInfo provider) {
return (provider != null) && (provider.provider != null)
&& (provider.provider.getPackageName() != null);
}
@SuppressLint("NewApi") // Already added API check.
private static void logWidgetInfo(InvariantDeviceProfile idp,
LauncherAppWidgetProviderInfo widgetProviderInfo) {
Point cellSize = new Point();
for (DeviceProfile deviceProfile : idp.supportedProfiles) {
deviceProfile.getCellSize(cellSize);
FileLog.d(TAG, "DeviceProfile available width: " + deviceProfile.availableWidthPx
+ ", available height: " + deviceProfile.availableHeightPx
+ ", cellLayoutBorderSpacingPx: " + deviceProfile.cellLayoutBorderSpacingPx
+ ", cellSize: " + cellSize);
}
StringBuilder widgetDimension = new StringBuilder();
widgetDimension.append("Widget dimensions:\n")
.append("minResizeWidth: ")
.append(widgetProviderInfo.minResizeWidth)
.append("\n")
.append("minResizeHeight: ")
.append(widgetProviderInfo.minResizeHeight)
.append("\n")
.append("defaultWidth: ")
.append(widgetProviderInfo.minWidth)
.append("\n")
.append("defaultHeight: ")
.append(widgetProviderInfo.minHeight)
.append("\n");
if (Utilities.ATLEAST_S) {
widgetDimension.append("targetCellWidth: ")
.append(widgetProviderInfo.targetCellWidth)
.append("\n")
.append("targetCellHeight: ")
.append(widgetProviderInfo.targetCellHeight)
.append("\n")
.append("maxResizeWidth: ")
.append(widgetProviderInfo.maxResizeWidth)
.append("\n")
.append("maxResizeHeight: ")
.append(widgetProviderInfo.maxResizeHeight)
.append("\n");
}
FileLog.d(TAG, widgetDimension.toString());
}
private static void logASplit(final TimingLogger logger, final String label) {
logger.addSplit(label);
if (DEBUG) {
Log.d(TAG, label);
}
}
//add start
private void bindAllAppsToWorkspace(){
if (mBgAllAppsList.data.size() > 0) {
AppInfoComparator mAppNameComparator = new AppInfoComparator(mApp.getContext());
ArrayList<AppInfo> appInfos = new ArrayList<AppInfo>(mBgAllAppsList.data);
// 按照名称进行排序
Collections.sort(appInfos, mAppNameComparator);
ArrayList<Pair<ItemInfo, Object>> installQueue = new ArrayList<>();
for (AppInfo info : appInfos) {
installQueue.add(Pair.create((ItemInfo) info, null));
}
mApp.getModel().addAndBindAddedWorkspaceItems(installQueue);
}
}
// end
}
10.修改PackageUpdatedTask:
源码路径：packages/apps/launcher3/src/com/android/launcher3/model/PackageUpdatedTask.java
package com.android.launcher3.model;
import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_QUIET_MODE_ENABLED;
import static com.android.launcher3.model.data.WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON;
import static com.android.launcher3.model.data.WorkspaceItemInfo.FLAG_RESTORED_ICON;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.LauncherActivityInfo;
import android.content.pm.LauncherApps;
import android.content.pm.ShortcutInfo;
import android.os.UserHandle;
import android.os.UserManager;
import android.util.Log;
import android.util.Pair;
import com.android.launcher3.Launcher;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.LauncherSettings;
import com.android.launcher3.LauncherSettings.Favorites;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.icons.BitmapInfo;
import com.android.launcher3.icons.IconCache;
import com.android.launcher3.icons.LauncherIcons;
import com.android.launcher3.logging.FileLog;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.model.data.LauncherAppWidgetInfo;
import com.android.launcher3.model.data.WorkspaceItemInfo;
import com.android.launcher3.pm.PackageInstallInfo;
import com.android.launcher3.pm.UserCache;
import com.android.launcher3.shortcuts.ShortcutRequest;
import com.android.launcher3.util.FlagOp;
import com.android.launcher3.util.IntSet;
import com.android.launcher3.util.ItemInfoMatcher;
import com.android.launcher3.util.PackageManagerHelper;
import com.android.launcher3.util.PackageUserKey;
import com.android.launcher3.util.SafeCloseable;
import com.android.launcher3.model.data.AppInfo;
import com.android.launcher3.allapps.AppInfoComparator;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
/**
* Handles updates due to changes in package manager (app installed/updated/removed)
* or when a user availability changes.
*/
public class PackageUpdatedTask extends BaseModelUpdateTask {
private static final boolean DEBUG = false;
private static final String TAG = "PackageUpdatedTask";
public static final int OP_NONE = 0;
public static final int OP_ADD = 1;
public static final int OP_UPDATE = 2;
public static final int OP_REMOVE = 3; // uninstalled
public static final int OP_UNAVAILABLE = 4; // external media unmounted
public static final int OP_SUSPEND = 5; // package suspended
public static final int OP_UNSUSPEND = 6; // package unsuspended
public static final int OP_USER_AVAILABILITY_CHANGE = 7; // user available/unavailable
private final int mOp;
private final UserHandle mUser;
private final String[] mPackages;
public PackageUpdatedTask(int op, UserHandle user, String... packages) {
mOp = op;
mUser = user;
mPackages = packages;
}
@Override
public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList appsList) {
final Context context = app.getContext();
final IconCache iconCache = app.getIconCache();
final String[] packages = mPackages;
final int N = packages.length;
final FlagOp flagOp;
final HashSet<String> packageSet = new HashSet<>(Arrays.asList(packages));
final ItemInfoMatcher matcher = mOp == OP_USER_AVAILABILITY_CHANGE
? ItemInfoMatcher.ofUser(mUser) // We want to update all packages for this user
: ItemInfoMatcher.ofPackages(packageSet, mUser);
final HashSet<ComponentName> removedComponents = new HashSet<>();
final HashMap<String, List<LauncherActivityInfo>> activitiesLists = new HashMap<>();
switch (mOp) {
case OP_ADD: {
for (int i = 0; i < N; i++) {
if (DEBUG) Log.d(TAG, "mAllAppsList.addPackage " + packages[i]);
iconCache.updateIconsForPkg(packages[i], mUser);
if (FeatureFlags.PROMISE_APPS_IN_ALL_APPS.get()) {
appsList.removePackage(packages[i], mUser);
}
activitiesLists.put(
packages[i], appsList.addPackage(context, packages[i], mUser));
}
flagOp = FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
break;
}
case OP_UPDATE:
try (SafeCloseable t =
appsList.trackRemoves(a -> removedComponents.add(a.componentName))) {
for (int i = 0; i < N; i++) {
if (DEBUG) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]);
iconCache.updateIconsForPkg(packages[i], mUser);
activitiesLists.put(
packages[i], appsList.updatePackage(context, packages[i], mUser));
app.getWidgetCache().removePackage(packages[i], mUser);
// The update may have changed which shortcuts/widgets are available.
// Refresh the widgets for the package if we have an activity running.
Launcher launcher = Launcher.ACTIVITY_TRACKER.getCreatedActivity();
if (launcher != null) {
launcher.refreshAndBindWidgetsForPackageUser(
new PackageUserKey(packages[i], mUser));
}
}
}
// Since package was just updated, the target must be available now.
flagOp = FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
break;
case OP_REMOVE: {
for (int i = 0; i < N; i++) {
FileLog.d(TAG, "Removing app icon" + packages[i]);
iconCache.removeIconsForPkg(packages[i], mUser);
}
// Fall through
}
case OP_UNAVAILABLE:
for (int i = 0; i < N; i++) {
if (DEBUG) Log.d(TAG, "mAllAppsList.removePackage " + packages[i]);
appsList.removePackage(packages[i], mUser);
app.getWidgetCache().removePackage(packages[i], mUser);
}
flagOp = FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
break;
case OP_SUSPEND:
case OP_UNSUSPEND:
flagOp = mOp == OP_SUSPEND ?
FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_SUSPENDED) :
FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_SUSPENDED);
if (DEBUG) Log.d(TAG, "mAllAppsList.(un)suspend " + N);
appsList.updateDisabledFlags(matcher, flagOp);
break;
case OP_USER_AVAILABILITY_CHANGE: {
UserManagerState ums = new UserManagerState();
ums.init(UserCache.INSTANCE.get(context),
context.getSystemService(UserManager.class));
flagOp = ums.isUserQuiet(mUser)
? FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_QUIET_USER)
: FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_QUIET_USER);
appsList.updateDisabledFlags(matcher, flagOp);
// We are not synchronizing here, as int operations are atomic
appsList.setFlags(FLAG_QUIET_MODE_ENABLED, ums.isAnyProfileQuietModeEnabled());
break;
}
default:
flagOp = FlagOp.NO_OP;
break;
}
bindApplicationsIfNeeded();
final IntSet removedShortcuts = new IntSet();
// Shortcuts to keep even if the corresponding app was removed
final IntSet forceKeepShortcuts = new IntSet();
// Update shortcut infos
if (mOp == OP_ADD || flagOp != FlagOp.NO_OP) {
final ArrayList<WorkspaceItemInfo> updatedWorkspaceItems = new ArrayList<>();
final ArrayList<LauncherAppWidgetInfo> widgets = new ArrayList<>();
// For system apps, package manager send OP_UPDATE when an app is enabled.
final boolean isNewApkAvailable = mOp == OP_ADD || mOp == OP_UPDATE;
synchronized (dataModel) {
dataModel.forAllWorkspaceItemInfos(mUser, si -> {
boolean infoUpdated = false;
boolean shortcutUpdated = false;
// Update shortcuts which use iconResource.
if ((si.iconResource != null)
&& packageSet.contains(si.iconResource.packageName)) {
LauncherIcons li = LauncherIcons.obtain(context);
BitmapInfo iconInfo = li.createIconBitmap(si.iconResource);
li.recycle();
if (iconInfo != null) {
si.bitmap = iconInfo;
infoUpdated = true;
}
}
ComponentName cn = si.getTargetComponent();
if (cn != null && matcher.matches(si, cn)) {
String packageName = cn.getPackageName();
if (si.hasStatusFlag(WorkspaceItemInfo.FLAG_SUPPORTS_WEB_UI)) {
forceKeepShortcuts.add(si.id);
if (mOp == OP_REMOVE) {
return;
}
}
if (si.isPromise() && isNewApkAvailable) {
boolean isTargetValid = !cn.getClassName().equals(
IconCache.EMPTY_CLASS_NAME);
if (si.itemType == Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
List<ShortcutInfo> shortcut =
new ShortcutRequest(context, mUser)
.forPackage(cn.getPackageName(),
si.getDeepShortcutId())
.query(ShortcutRequest.PINNED);
if (shortcut.isEmpty()) {
isTargetValid = false;
} else {
si.updateFromDeepShortcutInfo(shortcut.get(0), context);
infoUpdated = true;
}
} else if (isTargetValid) {
isTargetValid = context.getSystemService(LauncherApps.class)
.isActivityEnabled(cn, mUser);
}
if (!isTargetValid && si.hasStatusFlag(
FLAG_RESTORED_ICON | FLAG_AUTOINSTALL_ICON)) {
if (updateWorkspaceItemIntent(context, si, packageName)) {
infoUpdated = true;
} else if (si.hasPromiseIconUi()) {
removedShortcuts.add(si.id);
return;
}
} else if (!isTargetValid) {
removedShortcuts.add(si.id);
FileLog.e(TAG, "Restored shortcut no longer valid "
+ si.getIntent());
return;
} else {
si.status = WorkspaceItemInfo.DEFAULT;
infoUpdated = true;
}
} else if (isNewApkAvailable && removedComponents.contains(cn)) {
if (updateWorkspaceItemIntent(context, si, packageName)) {
infoUpdated = true;
}
}
if (isNewApkAvailable) {
List<LauncherActivityInfo> activities = activitiesLists.get(
packageName);
si.setProgressLevel(
activities == null || activities.isEmpty()
? 100
: PackageManagerHelper.getLoadingProgress(
activities.get(0)),
PackageInstallInfo.STATUS_INSTALLED_DOWNLOADING);
if (si.itemType == Favorites.ITEM_TYPE_APPLICATION) {
iconCache.getTitleAndIcon(si, si.usingLowResIcon());
infoUpdated = true;
}
}
int oldRuntimeFlags = si.runtimeStatusFlags;
si.runtimeStatusFlags = flagOp.apply(si.runtimeStatusFlags);
if (si.runtimeStatusFlags != oldRuntimeFlags) {
shortcutUpdated = true;
}
}
if (infoUpdated || shortcutUpdated) {
updatedWorkspaceItems.add(si);
}
if (infoUpdated && si.id != ItemInfo.NO_ID) {
getModelWriter().updateItemInDatabase(si);
}
});
for (LauncherAppWidgetInfo widgetInfo : dataModel.appWidgets) {
if (mUser.equals(widgetInfo.user)
&& widgetInfo.hasRestoreFlag(
LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY)
&& packageSet.contains(widgetInfo.providerName.getPackageName())) {
widgetInfo.restoreStatus &=
~LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY
& ~LauncherAppWidgetInfo.FLAG_RESTORE_STARTED;
// adding this flag ensures that launcher shows 'click to setup'
// if the widget has a config activity. In case there is no config
// activity, it will be marked as 'restored' during bind.
widgetInfo.restoreStatus |= LauncherAppWidgetInfo.FLAG_UI_NOT_READY;
widgets.add(widgetInfo);
getModelWriter().updateItemInDatabase(widgetInfo);
}
}
}
bindUpdatedWorkspaceItems(updatedWorkspaceItems);
if (!removedShortcuts.isEmpty()) {
deleteAndBindComponentsRemoved(ItemInfoMatcher.ofItemIds(removedShortcuts));
}
if (!widgets.isEmpty()) {
scheduleCallbackTask(c -> c.bindWidgetsRestored(widgets));
}
}
final HashSet<String> removedPackages = new HashSet<>();
if (mOp == OP_REMOVE) {
// Mark all packages in the broadcast to be removed
Collections.addAll(removedPackages, packages);
// No need to update the removedComponents as
// removedPackages is a super-set of removedComponents
} else if (mOp == OP_UPDATE) {
// Mark disabled packages in the broadcast to be removed
final LauncherApps launcherApps = context.getSystemService(LauncherApps.class);
for (int i=0; i<N; i++) {
if (!launcherApps.isPackageEnabled(packages[i], mUser)) {
removedPackages.add(packages[i]);
}
}
}
if (!removedPackages.isEmpty() || !removedComponents.isEmpty()) {
ItemInfoMatcher removeMatch = ItemInfoMatcher.ofPackages(removedPackages, mUser)
.or(ItemInfoMatcher.ofComponents(removedComponents, mUser))
.and(ItemInfoMatcher.ofItemIds(forceKeepShortcuts).negate());
deleteAndBindComponentsRemoved(removeMatch);
// Remove any queued items from the install queue
ItemInstallQueue.INSTANCE.get(context)
.removeFromInstallQueue(removedPackages, mUser);
}
if (mOp == OP_ADD) {
// Load widgets for the new package. Changes due to app updates are handled through
// AppWidgetHost events, this is just to initialize the long-press options.
for (int i = 0; i < N; i++) {
dataModel.widgetsModel.update(app, new PackageUserKey(packages[i], mUser));
}
bindUpdatedWidgets(dataModel);
}
// add start
if (FeatureFlags.REMOVE_DRAWER) {
updateAllAppsToWorkspace(app, appsList);
}
// add end
}
/**
* Updates {@param si}'s intent to point to a new ComponentName.
* @return Whether the shortcut intent was changed.
*/
private boolean updateWorkspaceItemIntent(Context context,
WorkspaceItemInfo si, String packageName) {
if (si.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
// Do not update intent for deep shortcuts as they contain additional information
// about the shortcut.
return false;
}
// Try to find the best match activity.
Intent intent = new PackageManagerHelper(context).getAppLaunchIntent(packageName, mUser);
if (intent != null) {
si.intent = intent;
si.status = WorkspaceItemInfo.DEFAULT;
return true;
}
return false;
}
// add start
public void updateAllAppsToWorkspace(LauncherAppState app , AllAppsList mBgAllAppsList){
if (mBgAllAppsList.data.size() > 0) {
AppInfoComparator mAppNameComparator = new AppInfoComparator(app.getContext());
ArrayList<AppInfo> appInfos = new ArrayList<AppInfo>(mBgAllAppsList.data);
Collections.sort(appInfos, mAppNameComparator);
ArrayList<Pair<ItemInfo, Object>> installQueue = new ArrayList<>();
for (AppInfo info : appInfos) {
installQueue.add(Pair.create((ItemInfo) info, null));
}
app.getModel().addAndBindAddedWorkspaceItems(installQueue);
}
}
// add end
}
11.实现效果如下：
12.总结:
从上面的截图可以看到基本上实现了桌面显示所有App应用图标，不同于抽屉模式还要向上滑动才能看到整个应用列表，这也很符合用户使用真实手机的习惯，而且安装了新App后会再桌面刷新，后面会讲解去掉抽屉显示所有应用列表.
- 几处关键修改就是显示所有应用，在桌面加载和安装新应用后立即刷新
- shouldShowApp
- 在LoaderTask添加bindAllAppsToWorkspace()方法
- 在PackageUpdatedTask添加updateAllAppsToWorkspace()方法