Android Set ImageButton as Toggle

There are a few ways of doing this:

First, you can simply use an ImageButton, and manually toggle its image drawable on click in Java. This is what the stock Music player on Android does for the shuffle button, for example. Although you won't have control over the button background in its checked state, you'll be able to swap out the image, which may be favorable from an Android UI-consistency perspective.

Another option is to use a complex set of drawables and nine-patches to get an image inside a ToggleButton, with the option of changing the background and/or the image resource upon toggle. That's the option I'll show below. But remember, be cautious about UI consistency before doing this.

res/layout/foo.xml

...
<ToggleButton
    android:textOn="" android:textOff=""
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/shuffle_button" />
...

res/drawable/shuffle_button.xml

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- use "@android:drawable/btn_default" to keep consistent with system -->
    <item android:drawable="@drawable/toggle_button_background" />
    <item android:drawable="@drawable/shuffle_button_image" />
</layer-list> 

res/drawable/toggle_button_background.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- checked state -->
    <item android:state_pressed="f