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PO
primarykey
Id
20198539
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
2
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CreationDate
2013-11-25T16:47:15.663
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2013-11-25T17:23:16.007
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2013-11-25T17:23:16.007
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412390
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412390
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19689127
PostTypeId
2
Score
17
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LastEditorDisplayName
text
Body
This is the way I finally solved it (after many iterations and different implementations). It's a bit tricky but basically you need three things: <ol> <li>An AsyncTask that gathers meta data</li> <li>A scroll listener that tells us when the user has stopped scrolling/flinging</li> <li>A clever algorithm that finds any visible row that needs updating and asks the adapter to only update that specific row</li> </ol> This is the way I designed and implemented it: <img src="https://raw.github.com/slidese/SGU/master/2013-11-25-14.45.00.png" alt="Screenshot"> I wrote in more detail about <a href="http://slidese.github.io/slidese/2013/11/25/update_listview_item.html" rel="noreferrer">it here</a>, and please see the <a href="https://github.com/slidese/SGU/blob/3be1888115ba56b4a015b127b249c35af5dc11d0/src/se/slide/sgu/ContentFragment.java" rel="noreferrer">github code</a> for the complete imlementation. <pre><code> private class UpdaterAsyncTask extends AsyncTask<Void, Void, Void> { boolean isRunning = true; public void stop() { isRunning = false; } @Override protected Void doInBackground(Void... params) { while (isRunning) { // Gather data about your adapter objects // If an object has changed, mark it as dirty publishProgress(); try { Thread.sleep(200); } catch (InterruptedException e) { e.printStackTrace(); } } return null; } @Override protected void onProgressUpdate(Void... params) { super.onProgressUpdate(); // Update only when we're not scrolling, and only for visible views if (mScrollState == OnScrollListener.SCROLL_STATE_IDLE) { int start = mListview.getFirstVisiblePosition(); for(int i = start, j = mListview.getLastVisiblePosition(); i<=j; i++) { View view = mListview.getChildAt(i-start); if (((Content)mListview.getItemAtPosition(i)).dirty) { mListview.getAdapter().getView(i, view, mListview); // Tell the adapter to update this view } } } } } </code></pre>
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1. POHow to update progressbar in a ListView item
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1. USMike
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1. USMike
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1. POHow to update progressbar in a ListView item
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