Set the camera to always display in portrait mode - Android android.hardware

Android examples for android.hardware:Camera State

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  4. Camera State

Description

Set the camera to always display in portrait mode

Demo Code

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.hardware.Camera;
import android.media.ExifInterface;
import android.net.Uri;
import android.provider.MediaStore;
import android.util.Log;
import android.view.Surface;
import java.io.File;

public class Main{

    /**//  w  w  w .  j  a  va 2 s.c  om
     * Set the camera to always display in portrait mode
     * @param activity
     * @param cameraId
     * @param camera
     */
    public static void setCameraDisplayOrientation(Activity activity,
            int cameraId, android.hardware.Camera camera) {
        android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
        android.hardware.Camera.getCameraInfo(cameraId, info);
        int rotation = activity.getWindowManager().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 (info.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {
            result = (info.orientation + degrees) % 360;
            result = (360 - result) % 360; // compensate the mirror
        } else { // back-facing
            result = (info.orientation - degrees + 360) % 360;
        }
        camera.setDisplayOrientation(result);
    }

}

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