Be notified when an Activity's size is going to change, and when it has changed

Can I be notified of the following events for an Activity:

开发者_JAVA技巧

• screenSizeWillChange
• screenSizeDidChange

I realize that I can probably override the main View's onSizeChanged() and be notified when the View has changed, but how can I be notified when it's about to change?

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Thats what you are looking for:

http://developer.android.com/reference/android/app/Activity.html#ConfigurationChanges