Orientation declare for activity doesn't work

Question

I've declared inside manifest of my project, for each activity

android:screenOrientation="portrait"

but when i launch my app, if i turn device in landscape, also orientation of my app change. How can i fix it?

Answer 1

Another easy way to achieve that the Activities don't change orientation is to call

    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

in the onCreate() method of all activities that should not change their orientation.