How to highlight ImageView when focused or clicked?

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You need to assign the src attribute of the ImageView a state list drawable. In other words, that state list would have a different image for selected, pressed, not selected, etc. – that’s how the Twitter App does it.

So if you had an ImageView:

<ImageView style="@style/TitleBarLogo"
            android:contentDescription="@string/description_logo"
            android:src="https://stackoverflow.com/questions/4185930/@drawable/title_logo" />

The src drawable (title_logo.xml) would look like this:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/title_logo_pressed"/>
    <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/title_logo_pressed"/>
    <item android:state_focused="true" android:drawable="@drawable/title_logo_selected"/>
    <item android:state_focused="false" android:state_pressed="false" android:drawable="@drawable/title_logo_default"/>
</selector>

The Google IO Schedule app has a good example of this.

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