Making Android app portrait only makes it one-way portrait

Question

I've made my app portrait-only and it works successfully, however there seems to be a cache. I can only have this kind of orientation:

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But I can't rotate it 180°, it just shows like this:

But if I leave the app, the screen rotates. So the problem is, it seems that the app is being set to one-way portrait, is there a way to fix it? Here's how I'm setting portrait-only in each activity:

android:configChanges="orientation|keyboardHidden"
android:screenOrientation="portrait"

Is there an option to fix this?

Answer 1

Try using this instead...

android:screenOrientation="sensorPortrait"

If this doesn't work let me know!

Edit So people see this, it only works with API 9+ as @AbAppletic said in the comments below.