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POSelector is applying change to all views instead of clicked view
 

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  1. POSelector is applying change to all views instead of clicked view
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    <p>I'm working on adding an onClick highlight to a view in a drag and drop grid in Android. The project is on <a href="https://github.com/lkorth/PagedDragDropGrid" rel="nofollow">GitHub</a> (the dev branch contains the code that is using the selector).</p> <p>The problem I am having is in the adapter when I set the onClick selector as a view's background, when I click a view, instead of changing the background for just that view the selector changes the backgrounds for all the views.</p> <p>I'm pretty sure this is a result of how the clicks are being handled in onTouch in the ViewGroup (below). I'm not sure if I should I be returning true/false differently or triggering the onClick listener differently to prevent all of the views from being highlighted.</p> <p>Any ideas/help is appreciated, thanks.</p> <pre><code>@Override public boolean onTouch(View v, MotionEvent event) { int action = event.getAction(); switch (action &amp; MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: touchDown(event); break; case MotionEvent.ACTION_MOVE: touchMove(event); break; case MotionEvent.ACTION_UP: touchUp(event); break; } if (aViewIsDragged()) return true; return false; } private void touchUp(MotionEvent event) { if(dragged == -1) { if(onClickListener != null) { View clickedView = getChildAt(getTargetAtCoor((int) event.getX(), (int) event.getY())); if(clickedView != null) onClickListener.onClick(clickedView); } } else { manageChildrenReordering(); hideDeleteView(); cancelEdgeTimer(); movingView = false; dragged = -1; lastTarget = -1; container.enableScroll(); cancelAnimations(); } } </code></pre> <p>EDIT: After looking at the ViewGroup documentation <a href="http://developer.android.com/reference/android/view/ViewGroup.html#attr_android%3aaddStatesFromChildren" rel="nofollow">android:addStatesFromChildren</a> sounds like what I am looking for, but it doesn't seem to have any effect.</p> <blockquote> <p>android:addStatesFromChildren</p> <p>Sets whether this ViewGroup's drawable states also include its children's drawable states. This is used, for example, to make a group appear to be focused when its child EditText or button is focused.</p> <p>Must be a boolean value, either "true" or "false".</p> <p>This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.</p> <p>This corresponds to the global attribute resource symbol addStatesFromChildren.</p> </blockquote> <p><strong>UPDATE</strong></p> <p>I have found a way to solve this. The pull request is <a href="https://github.com/mrKlar/PagedDragDropGrid/pull/12" rel="nofollow">here</a></p>
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    1. USLuke
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    1. COany chance to see your onClickListener method? Maybe performClick might help?
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      1. USAndroidPenguin
    2. COonClickListener is just a reference to the click listener (the activity in this case) and it's just creating a toast. I swapped onClickListener.onClick(clickedView) with clickedView.performClick() but the same thing happens and on top of it the click listener is not called
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      1. POSelector is applying change to all views instead of clicked view
      1. USLuke
 

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