Dear Chris,

If I understand that Article (along with your kind assistance correctly):

In my onCreateOptionsMenu()  I used to have the line:

switchCompat.setThumbResource(R.drawable.ic_toggle_sound);  <-- where ( ic_toggle_sound ) is the microphone icon showing ON-State.

First I would need to create an accompanying second graphic, lets call it ( ic_toggle_sound_off ) and place in the drawables.

Then I create a brand new xml selector file (let's call it ic_speaker_selector.xml)... and use that to replace the line above like:


switchCompat.setThumbResource(ic_speaker_selector);    <-- I am assuming without the .xml extension.



this ic_speaker_selector.xml would reside inside my ( res/drawable ) folder and since I only have two toggle sates:
(ON - or checked) versus (OFF - or unchecked), then my code would probably look something like this (if I am not mistaken)



-----------------------------    ic_speaker_selector.xml    should look like this  ------------------------------------------------

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true"  android:drawable="@drawable/ic_sound_on" />
    <item android:state_checked="false" android:drawable="@drawable/ic_sound_off" />
</selector>

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Do I have it right ?

Thanks !

Alexander