Android v4包中的 SwipeRefreshLayout 官方的下拉重新整理組件

Android v4包中的 SwipeRefreshLayout 官方的下拉重新整理組件

SwipeRefreshLayout在v4包下，對應的v4Demo中也有相應的例子。如果沒有請下載最新support-v4

SwipeRefreshLayout 只能有一個直接子View，可能是一個ListView或一個Layout或其他需要重新整理的組件。

setOnRefreshListener 用於監聽重新整理的動作。SwipeRefreshLayout 下拉，就會有重新整理的效果出來，觸發該監聽。

如果需要一個重新整理的動畫，setRefreshing(true)， 停: setRefreshing(false)

如果要禁用重新整理動畫和手勢響應，ssetEnable(false)， 恢複setEnable(true)

來個v4的例子：

public class SwipeRefreshLayoutActivity extends Activity implements OnRefreshListener {    public static final String[] TITLES =    {            "Henry IV (1)",            "Henry V",            "Henry VIII",            "Richard II",            "Richard III",            "Merchant of Venice",            "Othello",            "King Lear",            "Henry IV (1)",            "Henry V",            "Henry VIII",            "Richard II",            "Richard III",            "Merchant of Venice",            "Othello",            "King Lear",            "Henry IV (1)",            "Henry V",            "Henry VIII",            "Richard II",            "Richard III",            "Merchant of Venice",            "Othello",            "King Lear",            "Henry IV (1)",            "Henry V",            "Henry VIII",            "Richard II",            "Richard III",            "Merchant of Venice",            "Othello",            "King Lear"    };    // Try a SUPER quick refresh to make sure we don't get extra refreshes    // while the user's finger is still down.    private static final boolean SUPER_QUICK_REFRESH = false;    private View mContent;    private SwipeRefreshLayout mSwipeRefreshWidget;    private ListView mList;    private Handler mHandler = new Handler();    private final Runnable mRefreshDone = new Runnable() {        @Override        public void run() {            mSwipeRefreshWidget.setRefreshing(false);        }    };    @Override    public void onCreate(Bundle bundle) {        super.onCreate(bundle);        setContentView(R.layout.swipe_refresh_widget_sample);        mSwipeRefreshWidget = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_widget);        mSwipeRefreshWidget.setColorScheme(R.color.color1, R.color.color2, R.color.color3,                R.color.color4);        mList = (ListView) findViewById(R.id.content);        ArrayAdapter arrayAdapter = new ArrayAdapter(this,                android.R.layout.simple_list_item_1, android.R.id.text1, TITLES);        mList.setAdapter(arrayAdapter);        mSwipeRefreshWidget.setOnRefreshListener(this);        mSwipeRefreshWidget.setProgressViewEndTarget(false, 8);    }    @Override    public void onRefresh() {        refresh();    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        MenuInflater inflater = getMenuInflater();        inflater.inflate(R.menu.swipe_refresh_menu, menu);        return true;    }    /**     * Click handler for the menu item to force a refresh.     */    @Override    public boolean onOptionsItemSelected(MenuItem item) {        final int id = item.getItemId();        switch(id) {            case R.id.force_refresh:                mSwipeRefreshWidget.setRefreshing(true);                refresh();                return true;        }        return false;    }    private void refresh() {        mHandler.removeCallbacks(mRefreshDone);        mHandler.postDelayed(mRefreshDone, 1000);    }}

swipe_refresh_widget_sample.xml