get Camera Rotation For Surface Rotation - Android android.hardware

Android examples for android.hardware:Camera Rotation

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Description

get Camera Rotation For Surface Rotation

Demo Code

import android.annotation.SuppressLint;
import android.app.Activity;
import android.hardware.Camera;
import android.view.Surface;

public class Main{

    /**//from   ww w .j a v  a 2  s.  c o  m
     * gets the correct rotation of the camera for the surface rotation
     * requested, adjust for front/back camera
     * 
     * @param surfaceRotation
     * @param camera
     * @param cameraID
     * @return
     */
    @SuppressLint("NewApi")
    public static int getCameraRotationForSurfaceRotation(
            int surfaceRotation, Camera camera, int cameraID) {
        android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
        android.hardware.Camera.getCameraInfo(cameraID, info);

        int degrees = 0;

        switch (surfaceRotation) {
        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;
        }

        int result;
        if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
            result = (info.orientation + degrees) % 360;
            result = (360 - result) % 360; // compensate the mirror
        } else { // back-facing
            result = (info.orientation - degrees + 360) % 360;
        }
        return result;
    }

}

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