Android Button controls with selector how the background color, add background images

attention is not Android Button controls with selector how the background color, note that not add a background image
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the @ drawable / xxx into color values ​​no good ~
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amount . . Tried it . . Does not compile - but I think we can cut a small piece of color pictures to use when color . .
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  <?xml version="1.0" encoding="utf-8"?>
  <selector xmlns:android="http://schemas.android.com/apk/res/android">
      <item android:state_pressed="true"
            android:drawable="@android:color/white"/> <!-- pressed -->
      <item android:drawable="@android:color/black"/> <!-- default -->
  </selector>
  

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Will the next if the custom "# aabbcc" how to set it ?
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imageButton on so used
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