android - How to call an item using java? -

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i have layer-list in drawable , contains item has drawable assigned it:

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item android:drawable="@drawable/first"     android:id="@+id/first">     </item> </layer-list>

and want change drawable of item using java, idea how this??


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