change appcompat dialog title background to full width?

Question

I want to change title color background(green) to full width.

  <style name="AppCompatAlertDialogStyle" parent="Theme.AppCompat.Light.Dialog.Alert"> <item name="colorAccent">#000000</item> <item name="android:textColorPrimary">#5c5c5c</item> <item name="android:background">#fbdd9d</item> <item name="android:windowTitleStyle">@style/TitleDialogTextStyle</item> </style> <style name="TitleDialogTextStyle" parent="Base.DialogWindowTitle.AppCompat"> <item name="android:textColor">#ffffff</item> <item name="android:background">@color/green</item> </style> 

Please find attached snap. I want green color to full width.

Answer 1

I made a lot of tries, I never succeded to change the color defining a custom android:windowTitleStyle or a android:windowTitleBackgroundStyle . It only works using the following trick, add to your custom dialog style :

<item name="android:topDark">@color/your_color</item>

And the title background will be colored as you want.