PullToRefresh开源demo

╰+攻爆jí腚メ 2024-02-17 17:29 29阅读 0赞

这个是从Github上下载的，自己看了下：

![Center][]

代码：PullToRefreshListActivity

package com.handmark.pulltorefresh.sample;
    
    import java.util.Arrays;
    import java.util.LinkedList;
    
    import android.app.ListActivity;
    import android.os.AsyncTask;
    import android.os.Bundle;
    import android.view.Menu;
    import android.view.MenuItem;
    import android.widget.ArrayAdapter;
    import android.widget.ListView;
    
    import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;
    import com.handmark.pulltorefresh.library.PullToRefreshListView;
    
    public class PullToRefreshListActivity extends ListActivity {
    
    	static final int MENU_MANUAL_REFRESH = 0;
    	static final int MENU_DISABLE_SCROLL = 1;
    
    	private LinkedList<String> mListItems;
    	private PullToRefreshListView mPullRefreshListView;
    	private ArrayAdapter<String> mAdapter;
    
    	/** Called when the activity is first created. */
    	@Override
    	public void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.pull_to_refresh_list);
    
    		mPullRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);
    
    		// Set a listener to be invoked when the list should be refreshed.
    		mPullRefreshListView.setOnRefreshListener(new OnRefreshListener() {
    			@Override
    			public void onRefresh() {
    				// Do work to refresh the list here.
    				new GetDataTask().execute();
    			}
    		});
    		
    		ListView actualListView = mPullRefreshListView.getRefreshableView();
    
    		mListItems = new LinkedList<String>();
    		mListItems.addAll(Arrays.asList(mStrings));
    
    		mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mListItems);
    		
    		// You can also just use setListAdapter(mAdapter)
    		actualListView.setAdapter(mAdapter);
    	}
    
    	private class GetDataTask extends AsyncTask<Void, Void, String[]> {
    
    		@Override
    		protected String[] doInBackground(Void... params) {
    			// Simulates a background job.
    			try {
    				Thread.sleep(4000);
    			} catch (InterruptedException e) {
    			}
    			return mStrings;
    		}
    
    		@Override
    		protected void onPostExecute(String[] result) {
    			mListItems.addFirst("Added after refresh...");
    			mAdapter.notifyDataSetChanged();
    
    			// Call onRefreshComplete when the list has been refreshed.
    			mPullRefreshListView.onRefreshComplete();
    
    			super.onPostExecute(result);
    		}
    	}
    
    	@Override
    	public boolean onCreateOptionsMenu(Menu menu) {
    		menu.add(0, MENU_MANUAL_REFRESH, 0, "Manual Refresh");
    		menu.add(0, MENU_DISABLE_SCROLL, 1,
    				mPullRefreshListView.isDisableScrollingWhileRefreshing() ? "Enable Scrolling while Refreshing"
    						: "Disable Scrolling while Refreshing");
    		return super.onCreateOptionsMenu(menu);
    	}
    
    	@Override
    	public boolean onPrepareOptionsMenu(Menu menu) {
    		MenuItem disableItem = menu.findItem(MENU_DISABLE_SCROLL);
    		disableItem
    				.setTitle(mPullRefreshListView.isDisableScrollingWhileRefreshing() ? "Enable Scrolling while Refreshing"
    						: "Disable Scrolling while Refreshing");
    
    		return super.onPrepareOptionsMenu(menu);
    	}
    
    	@Override
    	public boolean onOptionsItemSelected(MenuItem item) {
    
    		switch (item.getItemId()) {
    
    			case MENU_MANUAL_REFRESH:
    				new GetDataTask().execute();
    				mPullRefreshListView.setRefreshing(false);
    				break;
    			case MENU_DISABLE_SCROLL:
    				mPullRefreshListView.setDisableScrollingWhileRefreshing(!mPullRefreshListView
    						.isDisableScrollingWhileRefreshing());
    				break;
    		}
    
    		return super.onOptionsItemSelected(item);
    	}
    
    	private String[] mStrings = { "Abbaye de Belloc", "Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi",
    			"Acorn", "Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale", "Aisy Cendre",
    			"Allgauer Emmentaler", "Abbaye de Belloc", "Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi",
    			"Acorn", "Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale", "Aisy Cendre",
    			"Allgauer Emmentaler" };
    }

[demo下载][demo]

[Center]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/30/2042790b01374e8f8595ea0dce8a931d.png
[demo]: http://download.csdn.net/detail/onceing/9530480