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android - State list drawable and disabled state

I have a button and I want it to have different background when I set:

android:enabled="false"

Here's resource file for background:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="false"
          android:drawable="@drawable/bttn_orange_normal" /> <!-- pressed -->
    <item android:state_pressed="true"
          android:drawable="@drawable/bttn_orange_selected" /> <!-- focused -->
    <item android:state_enabled="false" android:drawable="@drawable/bttn_grey_disabled"/>
    <item android:state_enabled="true" android:drawable="@drawable/bttn_orange_normal"/>
</selector>

But button still has normal background when it is disabled. What am I missing?

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Put this line :

<item android:state_enabled="false" android:drawable="@drawable/bttn_grey_disabled"/>

as first item (it must be first item, otherwise it will not work) of the selector tag.

Final :

<selector xmlns:android="http://schemas.android.com/apk/res/android">
            <item android:state_enabled="false" android:drawable="@drawable/bttn_grey_disabled"/>
            <item android:state_pressed="false"
              android:drawable="@drawable/bttn_orange_normal" /> <!-- pressed -->
            <item android:state_pressed="true"
              android:drawable="@drawable/bttn_orange_selected" /> <!-- focused -->
            <item android:state_enabled="true" android:drawable="@drawable/bttn_orange_normal"/> <!-- idle state -->
</selector>

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