之后到layout中改变刷新布局
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插入PullToRefreshListView
<RelativeLayout xmlns:android=“http://schemas.android.com/apk/res/android”
xmlns:tools=“http://schemas.android.com/tools”
android:layout_width=“match_parent”
android:layout_height=“match_parent”
tools:context=“ r e l a t i v e P a c k a g e . {relativePackage}. relativePackage.{activityClass}”
android:background=“#000000”>
<com.handmark.pulltorefresh.library.PullToRefreshListView
xmlns:ptr=“http://schemas.android.com/apk/res-auto”
android:id=“@+id/pull_refresh_list”
android:layout_width=“fill_parent”
android:layout_height=“fill_parent”
android:cacheColorHint=“#000000”
android:divider=“#19000000”
android:dividerHeight=“4dp”
android:fadingEdge=“none”
android:fastScrollEnabled=“false”
android:footerDividersEnabled=“false”
android:headerDividersEnabled=“false”
android:smoothScrollbar=“true”
ptr:ptrAnimationStyle=“rotate”
ptr:ptrHeaderTextColor=“#ffffff”
ptr:ptrHeaderSubTextColor=“#00ffff”
ptr:ptrHeaderBackground=“@null”
ptr:ptrDrawable=“@drawable/ic_launcher”/>
Activity 中设置下拉刷新监听
1.使用 setOnRefreshListener设置刷新监听,
2.使用OnRefreshListener回调在 onRefresh方法中触发加载数据操作.实现下拉监听.
3.使用 AsyncTask 实现加载数据 .
public class MainActivity extends AppCompatActivity {
PullToRefreshListView id_lv_test;
private List mList = new ArrayList(){
{
add(“Chinese”);
add(“Math”);
add(“English”);
}
};
private ArrayAdapter mLvAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 获取控件
id_lv_test = (PullToRefreshListView) findViewById(R.id.id_lv_test);
// 设置适配器
mLvAdapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1,mList);
id_lv_test.setAdapter(mLvAdapter);
// 设置下拉刷新监听.
id_lv_test.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener() {
@Override
public void onRefresh(PullToRefreshBase refreshView) {
new AsyncTask<Void,Void,Void>(){
@Override
protected Void doInBackground(Void… params) {
SystemClock.sleep(3 * 1000);
mList.add("新数据 - " + mLvAdapter.getCount());
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
id_lv_test.onRefreshComplete();
}
}.execute();
}
}
);
}
}
id_lv_test.setMode(PullToRefreshBase.Mode.BOTH);
// 设置上下刷新
id_lv_test.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2() {
@Override
public void onPullDownToRefresh(PullToRefreshBase refreshView) {