Device Rotation Prediction based on Acceleration Prediction in Android

Abstract

Android operating system adjusts its screen view orientation based on the angle to the gravity of the device. This function has kept similar behavior without large modification for a decade. We think that this implementation has room for improvement. For example, this implementation is too pessimistic for some users and makes a user wait for a while for its screen's view rotation after the device rotation. In this paper, we propose a method for quickly adjusting screen orientation. The proposed method predicts the angle of the device in the near future from the recently measured acceleration. We then show that our proposed method can adjust the screen view orientation sooner by 0.38 s than the original implementation and its negative effect of miss rotation is small.