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POAsyncTaskLoader third task disappears
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  1. POAsyncTaskLoader third task disappears
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    copied!<p>I'm trying to implement a list/detail workflow where a tap on a list item causes the detail section to load data related to the newly selected row. I'm trying to use an <code>AsyncTaskLoader</code> to accomplish this. I'm running into a problem where if I tap three list items quickly enough in a row, only two of the loads actually occur and the third gets lost.</p> <p>I've written a sample activity that demonstrates this behavior. When tapping the button three times, the <code>loadInBackground()</code> method is only getting called twice. Am I missing a call somewhere?</p> <pre><code>public final class LoaderActivity extends Activity implements LoaderManager.LoaderCallbacks&lt;Integer&gt; { private Button button; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.loader); button = (Button) findViewById(R.id.load_button); getLoaderManager().initLoader(0, null, this); } public void onButtonClick(View source) { Loader&lt;Integer&gt; loader = getLoaderManager().getLoader(0); if (loader != null) { loader.forceLoad(); } } @Override public Loader&lt;Integer&gt; onCreateLoader(int id, Bundle args) { return new IntLoader(this); } @Override public void onLoadFinished(Loader&lt;Integer&gt; listLoader, Integer data) { button.setText(String.valueOf(data)); } @Override public void onLoaderReset(Loader&lt;Integer&gt; listLoader) { } private static final class IntLoader extends AsyncTaskLoader&lt;Integer&gt; { private static final AtomicInteger counter = new AtomicInteger(0); IntLoader(Context context) { super(context); } @Override public Integer loadInBackground() { int result = counter.getAndIncrement(); // Simulate a potentially expensive web call try { Thread.sleep(5000); } catch (InterruptedException e) { } return result; } @Override protected void onStopLoading() { cancelLoad(); } @Override protected void onReset() { onStopLoading(); } @Override public void deliverResult(Integer data) { if (isStarted()) { super.deliverResult(data); } } } } </code></pre>
 

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