I have checked many question based on this but still I am not able to get it how to lock the screen orientation to landscape through out the app. ?
In the Manifest, you can set the screenOrientation to
landscape for all the activities .
You have placed for
one activity so other activities are opening in portrait, So for
all your activities with orientation as your first activity.
It would look something like this in the XML:
<activity android:name=".BasicLayoutCheckActivity" android:screenOrientation="landscape"></activity>