Android Camera Get getDefaultBackFacingCameraInstance()

Description

get Default Back Facing Camera Instance

Return

the default rear/back facing camera on the device. Returns null if camera is not available.

Declaration

public static Camera getDefaultBackFacingCameraInstance() 

Method Source Code

//package com.java2s;

import android.annotation.TargetApi;
import android.hardware.Camera;
import android.os.Build;

public class Main {
    /**// w ww .  j  a v  a2  s .  co  m
     * @return the default rear/back facing camera on the device. Returns null if camera is not available.
     */
    public static Camera getDefaultBackFacingCameraInstance() {
        return getDefaultCamera(Camera.CameraInfo.CAMERA_FACING_BACK);
    }

    /**
     * 
     * @param position
     *            Physical position of the camera i.e Camera.CameraInfo.CAMERA_FACING_FRONT or Camera.CameraInfo.CAMERA_FACING_BACK.
     * @return the default camera on the device. Returns null if camera is not available.
     */
    @TargetApi(Build.VERSION_CODES.GINGERBREAD)
    private static Camera getDefaultCamera(int position) {
        // Find the total number of cameras available
        int mNumberOfCameras = Camera.getNumberOfCameras();

        // Find the ID of the back-facing ("default") camera
        Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
        for (int i = 0; i < mNumberOfCameras; i++) {
            Camera.getCameraInfo(i, cameraInfo);
            if (cameraInfo.facing == position) {
                return Camera.open(i);

            }
        }

        return null;
    }
}

Related

1. getDefaultCamera(int position)
2. getDefaultCamera(int position)
3. getDefaultCameraInstance()
4. getDefaultFrontFacingCameraInstance()
5. getNumberOfCameras()
6. getCameraRotation(final Context context)
7. indexOfClosestZoom(Camera.Parameters parameters, double targetZoomRatio)
8. getLowestResolution(Camera.Parameters cp)
9. launchCamera(Activity activity)