Android Screen Orientation Bug

I am using android HTC HERO 2.1 version. The activity I write : Copy

and try this line

 android:windowSoftInputMode="stateUnspecified|adjustPan"

Solution 2:

Not sure if it's the same problem, but here is the problem I had :

• I force the orientation as landscape in the manifest
• My activity has a two surfaceviews ( a camera preview and a layer on top of it )
• After pressing the power button and coming back, my views were suddenly in the wrong orientation

It seems to be the same problem as another question : Disable orientation but detect orientation

I think the problem is that once you press the power button, the lock screen forces the orientation as portrait. In the onConfigurationChanged I get an orientation change right when I press the power button, which was unexpected because I told to explicitly lock the orientation. The fact is that when another activity which comes in front forces the orientation, the other activities get notified of the orientation change, even if they asked for an explicit orientation.

Here's my workaround :

• in onPause, detach the views with removeView ( my application has programmatically created views, not an xml layout )
• in onResume , first check if the orientation is the one you requested ( getResources().getConfiguration().orientation ). If it's the case, reattach the views ( addContentView or whatever ).
• if the orientation is not the one you expect, call setRequestedOrientation
• onConfigurationChanged will be called to tell the orientation has been changed to the one you requested. At this point you can reattach the views with setContentView.

Seems a bit complicated, but that's what I had to go through in my particular case, since my views are created dynamically and directly attach to the default FrameLayout of the activity. Maybe I then missed some default behaviors because of that, but this way I could achieve the reactivity I was looking for.

Solution 3:

Not sure whether this can be called a fix, but it's kind of a work-around.

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    if (hasFocus)
        setContentView(mGameView);
    else
        setContentView(mEmptyView);
}

Where mGameView is your ordinary content and mEmptyView is just a simple View object. The activity will still be drawn in portrait for a frame or two, but it will not be visible to the user.

I've tested this with HTC Hero and Nexus S.