androidcheckboxcolorsfocusripple

How can I change the CheckBox focus color on Android?


I want to change the checkbox "outline" color, which is visible when focusing the checkbox in order to improve the visibility of the currently focused item when using the app with a keyboard or directional pad. How can I do that?

Image of what I mean: Focused CheckBox on Android

Edit: After finding the correct wording ("ripple color") for what I mean, I managed to change it with:

<item name="colorControlHighlight">#00f</item>

But this only applies to unchecked checkboxes. Does anybody know how to apply it to all (also checked) checkboxes? Image of colorControlHighlight effect on checked and unchecked checkboxes


Solution

  • Thanks to @special N9NE

    This works: define an own ripple ripple_bg.xml:

    <ripple xmlns:android="http://schemas.android.com/apk/res/android"
            android:color="@color/accent_26" />
    

    And set it as background (globally):

    <resources>
        <style name="AppTheme" parent="Theme.AppCompat.DayNight">
            <!-- ... -->
    
            <!-- custom checkbox style to improve visibility on special (TV) devices -->
            <item name="android:checkboxStyle">@style/MyCheckBoxStyle</item>
        </style>
    
        <style name="MyCheckBoxStyle" parent="Widget.AppCompat.CompoundButton.CheckBox">
            <item name="android:background">@drawable/ripple_bg</item>
        </style>
    </resources>