Android下拉刷新SwipeRefreshLayout控件使用方法

<android.support.v4.widget.SwipeRefreshLayout  android:layout_width="match_parent"  android:layout_height="match_parent">  <android.support.v7.widget.RecyclerView    android:id="@+id/recyclerView"    android:layout_width="match_parent"    android:layout_height="match_parent"/></android.support.v4.widget.SwipeRefreshLayout>

  private SwipeRefreshLayout mSwipeRefreshLayout;//先声明，你懂的    mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.recyclerView);    mSwipeRefreshLayout.setSize(SwipeRefreshLayout.LARGE);    //自定义加载的圆形背景颜色，下拉的圆圈背景颜色//    mSwipeRefreshLayout.setProgressBackgroundColorSchemeResource(R.color.gray);    //自定义加载的圆条颜色，转动的圆条颜色    mSwipeRefreshLayout.setColorSchemeResources(R.color.title_blue, R.color.green, R.color.orange);    mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {      @Override      public void onRefresh() {        mHandler.postDelayed(new Runnable() {          @Override          public void run() {          //在这里编写手势下拉刷新的监听，也就是一下拉就进行这里          }        }, 2500);        //正常情况下是在加载完成后回调，这里简单模拟延时        Toast.makeText(MainActivity.this, "正在刷新", Toast.LENGTH_SHORT).show();        new Handler().postDelayed(new Runnable() {          @Override          public void run() {            Toast.makeText(MainActivity.this, "刷新完成", Toast.LENGTH_SHORT).show();            mSwipeRefreshLayout.setRefreshing(false);          }        }, 3000);//3000指延时6s      }    });