主题不适用于活动

Question

To apply a theme on an activity, you have to add the theme from (Manefest file) like this:

 <activity
        android:name=".Forth"
        android:label="@string/title_activity_forth"
        android:theme="@android:style/Theme.Dialog">

The app starts normally, but when I click the button to stat the (dialog activity), the app fall-down/?

and when I remove the theme (android:theme="@android:style/Theme.Dialog") ,

the app works perfectly.

Please provide me with solution for this problem. I am running Android Studio 1.1.0

Answer 1

OK, I just solved it. It's because my Activity was inheriting from ActionBarActivity. I make it inherit from Activity and now it's working.