xml布局文件
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="/apk/res/android"xmlns:app="/apk/res-auto"xmlns:tools="/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:id="@+id/drawer_layout"android:orientation="vertical"tools:context=".picassodemo.MainActivity"><android.support.v4.widget.SwipeRefreshLayoutandroid:id="@+id/swipe_refresh"android:layout_width="match_parent"android:layout_height="match_parent"><ListViewandroid:id="@+id/lv_activity"android:layout_width="match_parent"android:layout_height="match_parent"></ListView></android.support.v4.widget.SwipeRefreshLayout></LinearLayout>
JAVA
public class MainActivity extends AppCompatActivity {@RequiresApi(api = Build.VERSION_CODES.M)@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);final SwipeRefreshLayout swipeRefresh= (SwipeRefreshLayout) findViewById(R.id.swipe_refresh);swipeRefresh.setColorSchemeColors(getResources().getColor(R.color.colorAccent,null));swipeRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {@Overridepublic void onRefresh() {Toast.makeText(getApplicationContext(),"onRefresh",Toast.LENGTH_SHORT).show();new Thread(new Runnable() {@Overridepublic void run() {try{Thread.sleep(2000);}catch (Exception e){e.printStackTrace();}runOnUiThread(new Runnable() {@Overridepublic void run() {//更新数据swipeRefresh.setRefreshing(false);}});}}).start();}});}
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