How do I disable rotation in all activities which belong to my Android application?

Question

I'm working on an Android open source application. This application contains many activities.

I want to deactivate the rotation in all activities. How to do that in Java and not in XML?

Answer 1

In XML:

<activity android:name=".SomeActivity"
          android:label="@string/app_name"
          android:screenOrientation="portrait">

In Java:

setRequestedOrientation (ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

Sadly, you have to do it for every activity or create an abstract PortraitActivity, which will be extended by all your application's activities.