Java tutorial
//package com.java2s; //License from project: Open Source License import android.app.Activity; import android.hardware.Camera; import android.hardware.Camera.CameraInfo; import android.support.annotation.NonNull; import android.util.DisplayMetrics; import android.view.Surface; public class Main { public static int getCameraDisplayOrientation(@NonNull Activity activity, @NonNull CameraInfo info) { int rotation = activity.getWindowManager().getDefaultDisplay().getRotation(); int degrees = 0; DisplayMetrics dm = new DisplayMetrics(); activity.getWindowManager().getDefaultDisplay().getMetrics(dm); switch (rotation) { case Surface.ROTATION_0: degrees = 0; break; case Surface.ROTATION_90: degrees = 90; break; case Surface.ROTATION_180: degrees = 180; break; case Surface.ROTATION_270: degrees = 270; break; } if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { return (360 - ((info.orientation + degrees) % 360)) % 360; } else { return (info.orientation - degrees + 360) % 360; } } }