SwipeRefresh下拉刷新

SwipeRefreshLayout实质上是一个ViewGroup，所以将其作为根布局

<LinearLayout

xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.example.swiperefreshdemo.MainActivity">

 

<android.support.v4.widget.SwipeRefreshLayout

android:id="@+id/swipeLayout"

android:layout_width="match_parent"

android:layout_height="match_parent">

 

<ListView

android:id="@+id/listView"

android:layout_width="match_parent"

android:layout_height="match_parent">

</ListView>

 

</android.support.v4.widget.SwipeRefreshLayout>

 

</LinearLayout>

 

经过这个步骤，在页面上就已经能够下拉看到控件

 

public classMainActivity extends AppCompatActivity implementsSwipeRefreshLayout.OnRefreshListener{

private static final int REFRESH_COMPLETE=0x01;

private SwipeRefreshLayout refreshLayout;

 

private Handler handler=new Handler(){

public void handleMessage(android.os.Message msg){

switch(msg.what){

case REFRESH_COMPLETE:

refreshLayout.setRefreshng(false);

break;

}

}

};

 

@SuppressLint("ResourceAsColor")

@Override

protected void onCreate(Bundle savedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

 

refreshLayout=(SwipeRefreshLayout)findViewById(R.id.swipeLayout); 

refreshLayout.setColorSchemeColors(Color.BLUE,Color.GREEN,Color.RED);

refreshLayout.setSize(SwipeRefreshLayout.DEFAULT);

refreshLayout.setOnRefreshListener(this);

}

 

public void onRefresh(){

//执行操作的更新等操作

 

//刷新成功

handler.sendEmptyMessageDelayed(REFRESH_COMPLETE,2000);

}

}

 

SwipeRefreshLayout方法介绍

1. setColorSchemeResources(int…args):设置刷新时圆圈的颜色变化，为int数组
2. setSize(int size):设置刷新时圆圈的大小，有DEFAULT（小）和LARGE两个值，默认是DEFAULT
3. setOnRefreshListener(OnRefreshListener):设置刷新时回调监听事件，刷新时调用
4. setRefreshing(boolean refreshing):设置是否继续正在刷新