Android 官方下拉刷新 SwipeRefreshLayout

0.build.gradle

　　compile 'com.android.support:support-v4:23+'

1.布局文件　　

<android.support.v4.widget.SwipeRefreshLayout
    android:id="@+id/swipeRefreshLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <ListView
        android:id="@+id/lv"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </ListView>
</android.support.v4.widget.SwipeRefreshLayout>

2.java代码

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_3);
        ButterKnife.bind(this);
        /** 绑定事件 */
        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                // 网络请求
                request();
            }
        });
 
　　　　// 第一次打开自动刷新

　　　　swipeRefreshLayout.measure(0, 0);
　　　　swipeRefreshLayout.setRefreshing(true);
　　　　request();

    }
    private void request() {
        HttpUtil.getInstance().get(new HttpUtil.Builder()
                .url("/scloudmenu/menu/16/list?key=&token=95af71ee-abb9-41cd-b8fd-f2f0a2bf16c0")
                .params("currentPage", ++currentPage + "")
                .callBackSuccess(new CallBackSuccess() {
                    @Override
                    public void onSuccess(String json) { //拿到请求数据,相当于 handleMessage() 中的处理
                        CloudMenuEntityList data = JsonUtil.fromJson(json, CloudMenuEntityList.class);
                        entityList.addAll(data.cloudMenuEntityList);
                        tv.setText(entityList.size() + "");
                        // 取消刷新效果
                        swipeRefreshLayout.setRefreshing(false);
                    }
                })
        );
    }