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POHow to make layout's and view's background transparent?
 

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  1. POHow to make layout's and view's background transparent?
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    <p>I'm trying to make a layout with a background and add a scroll view at the bottom of this layout.</p> <p>here's my code:</p> <pre><code>FrameLayout mainLayout = new FrameLayout(getApplicationContext()); mainLayout.setLayoutParams(new ViewGroup.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); mainLayout.setBackgroundResource(R.drawable.background2); FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(LayoutParams.FILL_PARENT, 200); params.gravity = Gravity.BOTTOM|Gravity.CENTER; final ScrollView scrollView = new ScrollView(getApplicationContext()); scrollView.setLayoutParams(params); scrollView.setBackgroundColor(Color.TRANSPARENT); StorageView storageView = new StorageView(getApplicationContext()); storageView.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); Drawable drawable = getResources().getDrawable(R.drawable.background1); drawable.setAlpha(0); storageView.setBackgroundDrawable(drawable); scrollView.addView(storageView); mainLayout.addView(scrollView); setContentView(mainLayout); </code></pre> <p>why I see only the background image?</p> <p>*Edit:</p> <p>If I remove all the setBackgroundColor and move the setBackgroundDrawable to the ScrollLayout or the StorageView I see the background on the whole screen</p> <p>*Edit2:</p> <p>I edit the code: I remove the unnecessary layouts, and set a background drawable with alpha set to 0, and now it works.</p> <p>well, I'll be happy if someone explain to me why I need to do this? </p>
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    1. COWhy are you not writing the layout in the XML editor? Get it looking right in there first and then look at dynamically creating it if you need to.
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    2. CObeacuse StorageView is a customized View that I draw things in its onDraw method. so I cant see it on xml
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      1. USpiojo
    3. COBut does the layout above StorageView output correctly? What I mean is get it working before your StorageView. If you have already, then there is no need. :)
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