How do I open the “front camera” on the Android platform?

Question

More generally, if a device has more than one embedded camera, is there a way to initialize one of them in particular?

I didn\'t find it in Android reference documen

Answer 1

build.gradle

 dependencies {
       compile 'com.google.android.gms:play-services-vision:9.4.0+'
    }

Set View

CameraSourcePreview mPreview = (CameraSourcePreview) findViewById(R.id.preview);

GraphicOverlay mGraphicOverlay = (GraphicOverlay) findViewById(R.id.faceOverlay);

CameraSource mCameraSource = new CameraSource.Builder(context, detector)
                            .setRequestedPreviewSize(640, 480)
                            .setFacing(CameraSource.CAMERA_FACING_FRONT)
                            .setRequestedFps(30.0f)
                            .build();

           mPreview.start(mCameraSource, mGraphicOverlay);