Shadow color on buttons depending on state in XML - Android

Question

I've created custom ToggleButtons in Android and since all buttons inherit from the same xml I want to change how they act depending on state, so when the state is checked I want to change the shadow color but this does not seem to possible with the current SDK.

I've created an xml file which holds button_colors:

<?xml version="1.0" encoding="utf-8"?>
<selector
   xmlns:android="http://schemas.android.com/apk/res/android">
<item
    android:state_checked="true"
    android:color="#FFFFFF"  />

<item
    android:color="#000000" />
 </selector>

But this only seems to work with text-color and not shadow color on the text. Is there something I'm missing? And rather not do this for every button manually in code since I want this to apply to every button in the app.

UPDATE EDIT:

My selector currently looks like this

<selector
xmlns:android="http://schemas.android.com/apk/res/android">

<item
    android:state_checked="true"
    android:drawable="@drawable/button_gradient_selected" />

<item
    android:drawable="@drawable/button_gradient" />

</selector>

But as I mentioned to the commentator below I can't seem to change the style/text-color-shadow from here since it only can take in a drawable it seems.

When I try to put in a different style on the button in here it force closes or either does not change the style depending on state. When I only try to put in the style here and have the drawable be set in the style it force closes. Either way it does not work it seems.

Answer 1

Seems that the Android framework does not support this.

From TextView.java:

        case com.android.internal.R.styleable.TextView_textColor:
            textColor = a.getColorStateList(attr);
            break;

        case com.android.internal.R.styleable.TextView_shadowColor:
            shadowcolor = a.getInt(attr, 0);
            break;

They treat textColor and shadowColor differently.

Answer 2

Please refer to my solution on a different StackOverFlow question. I extended TextView to give a working solution here. (Replace TextView with Button)