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POListView, Checkable items don't get checked on Android 1.6
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copied!<p>My app is currently targeted at Android 1.6. It contains a ListView with <a href="http://developer.android.com/reference/android/widget/AbsListView.html#CHOICE_MODE_SINGLE" rel="nofollow noreferrer">CHOICE_MODE_SINGLE</a>. All the items implement <a href="http://developer.android.com/reference/android/widget/Checkable.html" rel="nofollow noreferrer">Checkable</a>. I am using <a href="http://developer.android.com/reference/android/widget/AbsListView.html#setItemChecked%28int,%20boolean%29" rel="nofollow noreferrer">setItemChecked(int position, boolean value)</a> to check/uncheck items as needed. It works as expected on Android 2.1, 2.2 and 2.3. On Android 1.6 however, no item gets checked.</p> <p>Code looks like this:</p> <pre><code>Integer checkedIndex = 0; // This is actually set from somewhere else. void updateCheckedItem() { int count = adapter.getCount(); for (int i = 0; i < count; i++) { listView.setItemChecked(i, isChecked(i)); } // Here, we should have a checked item (unless checkedIndex was null) SparseBooleanArray checkedPositions = listView.getCheckedItemPositions(); int size = checkedPositions.size(); // On Android 1.6, size is 0 (wrong) // On Android 2.x, size is 1 (correct) // Another try... int checkedPosition = listView.getCheckedItemPosition(); // On Android 1.6, checkedPosition is INVALID_POSITION (-1), meaning nothing is checked (wrong) // On Android 2.x, checkedPosition is whatever checkedIndex is (correct) } boolean isChecked(int position) { return checkedIndex != null && checkedIndex == position; } </code></pre> <p><a href="https://stackoverflow.com/questions/3215518/listview-not-checking-items-on-android-1-5">This question</a> resolved the problem by setting ListView's ChoideMode in code, not XML. I did that in code to begin with and putting it in XML made no difference for me. Problem still occurs.</p> <p>How can I make this work on Android 1.6?</p>

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