get Portrait Camera Display Orientation - Android android.app

Android examples for android.app:Display

  1. HOME
  2. Android
  3. android.app
  4. Display

Description

get Portrait Camera Display Orientation

Demo Code

import android.content.Context;
import android.graphics.Point;
import android.hardware.Camera;
import android.util.Log;
import android.view.Surface;
import android.view.WindowManager;
import java.util.List;

public class Main{

    public static int getPortraitCameraDisplayOrientation(Context context,
            int cameraId, boolean isFrontCamera) {
        if (cameraId < 0 || cameraId > getCameraNumber()) {
            return -1;
        }//from w w  w.  ja v  a 2 s  .c o m
        Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
        Camera.getCameraInfo(cameraId, cameraInfo);

        int rotation = ((WindowManager) context
                .getSystemService(Context.WINDOW_SERVICE))
                .getDefaultDisplay().getRotation();
        int degrees = 0;
        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;
        }

        int result;
        if (isFrontCamera) {
            result = (cameraInfo.orientation + degrees) % 360;
            result = (360 - result) % 360;
        } else {
            result = (cameraInfo.orientation - degrees + 360) % 360;
        }
        return result;
    }
    public static int getCameraNumber() {
        if (cameraNumber == -1) {
            cameraNumber = Camera.getNumberOfCameras();
        }
        return cameraNumber;
    }
    public static Camera.CameraInfo getCameraInfo(int id) {
        if (id >= 0 && id < getCameraNumber()) {
            Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
            Camera.getCameraInfo(id, cameraInfo);
            return cameraInfo;
        }
        return null;
    }

}

Related Tutorials