Customizing default Theme.AppCompat.Dialog.Alert with android.support.v7.app.AlertDialog

Question

I've recently switch the AlertDialog instances in my app to use android.support.v7.app.AlertDialog, but am having a problem applying a custom theme and style to the alert dialogs.

In my styles.xml I have the following style:

<style name="AlertDialog" parent="Theme.AppCompat.Dialog.Alert">
    <item name="colorAccent">@color/theme_accent_1</item>
    <item name="background">@color/theme_component_background</item>
    <item name="android:background">@color/theme_component_background</item>
</style>

In my themes.xml I have the following set in my theme as required:

<item name="android:alertDialogTheme">@style/AlertDialog</item>

For some reason the custom styles are never applied to the AlertDialog instances, and they remain the default Theme.AppCompat.Dialog.Alert theme.

If I explicitly set the style resource to use as follows, it does work:

AlertDialog.Builder builder = 
    new AlertDialog.Builder(getActivity(), R.style.AlertDialog);

Is there no way to set the default style across the entire theme and not have to specify the theme in the Builder constructor?

Answer 1

As per Pankaj Kumar's response, the link details the solution, which is to have both declarations with and without the "android:" prefix in the name attribute.

<item name="android:alertDialogTheme">@style/AlertDialog</item>
<item name="alertDialogTheme">@style/AlertDialog</item>