[Solved] take picture automatic , without user interaction in android [closed]

by


You can use an approach like this

private Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() {
    @Override
    public void onPictureTaken(final byte[] bytes,final Camera camera) {

        // Do something here ... save, display ...
    }
};
public void takePictureBack(ControllerState state){

    Camera camera = null;
    int cameraCount = Camera.getNumberOfCameras();
    for (int cameraId = 0; cameraId < cameraCount; cameraId++) {
        Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
        if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {
                camera = Camera.open(cameraId);
                break;
            }
        }




    if (camera!= null) {


        Camera.Parameters params = camera.getParameters();

        // Check what resolutions are supported by your camera
        List<Camera.Size> sizes = params.getSupportedPictureSizes();


        // Iterate through all available resolutions and choose one.    
        for (Camera.Size size : sizes) {
            ... 
        }




        params.setPictureSize( ... );
        camera.setParameters(params);

        camera.setPreviewDisplay(mCameraSourcePreview.getSurfaceView().getHolder());
        camera.startPreview();      
        camera.takePicture(null,null,mPictureCallback)

    }
}

However be careful since Android does not allow this kind of behaviour when the user is not aware of a picture being taken. The SurfaceView you use for the preview needs to have visibility visible.

solved take picture automatic , without user interaction in android [closed]