Android自带的下拉刷新组件SwipeRefreshLayout

清华大佬耗费三个月吐血整理的几百G的资源,免费分享!....>>>

也许之前下拉刷新你可能会用到一些第三方开源库,如PullToRefresh, ActionBar-PullToRefresh等,但现在已经有官方的组件了 ---SwipeRefreshLayout,SwipeRefreshLayout是Google在support v4 19.1版本的library更新的一个下拉刷新组件,使用起来很方便,可以很方便的实现Google Now的刷新效果。使用官方自带的控件能够保证通用性以及风格。SwipeRefreshLayout是继承ViewGroup,来实现下拉刷新,它可以 包含其他组件,使用过后感觉很简单。
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
<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" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    tools:context="com.example.myapplication2.app.MainActivity"
   
    <android.support.v4.widget.SwipeRefreshLayout 
        android:id="@+id/swip" 
        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
   
</RelativeLayout>

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
import android.os.Handler; 
import android.os.Message; 
import android.support.v7.app.ActionBarActivity; 
import android.support.v4.widget.SwipeRefreshLayout; 
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
   
   
public class MainActivity extends ActionBarActivity implements OnRefreshListener{ 
   
    private SwipeRefreshLayout swipeRefreshLayout; 
    Handler handler = new Handler(){ 
        @Override 
        public void handleMessage(Message msg) { 
            super.handleMessage(msg); 
            swipeRefreshLayout.setRefreshing(false); 
        
    }; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.activity_main); 
        swipeRefreshLayout = (SwipeRefreshLayout)findViewById(R.id.swip); 
        swipeRefreshLayout.setOnRefreshListener(this); 
        swipeRefreshLayout.setColorScheme(android.R.color.holo_blue_bright, 
                android.R.color.holo_green_light, 
                android.R.color.holo_orange_light, 
                android.R.color.holo_red_light); 
   
    
   
    @Override 
    public void onRefresh() { 
        handler.sendEmptyMessageDelayed(1, 5000); 
    
}

在上面的onRefresh()函数中实现获取数据功能以及更新数据,当更新完数据后,调用swipeRefreshLayout.setRefreshing(false);来关闭刷新。