Camera zoom not working

Question

I am using the API 2.1 and my debug shows a max zoom value of 15. The code here does not make the camera zoom. How do I get the camera to zoom?

camera = Came         


        

Answer 1

            zoomIncrementer = parameters.getMaxZoom() / 2;
            zoomInOut.setOnZoomInClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {

                    zoomIncrementer += parameters.getMaxZoom() / 5;

                    if (zoomIncrementer > parameters.getMaxZoom()) {

                        zoomIncrementer = parameters.getMaxZoom();

                        Log.d(TAG, String.valueOf(zoomIncrementer));

                    }

                    cameraParameters();
                    cameraReloader();

                }
            });

            zoomInOut.setOnZoomOutClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {

                    zoomIncrementer -= parameters.getMaxZoom() / 5;

                    if(zoomIncrementer < 0){

                        zoomIncrementer = 0;

                    }

                    cameraParameters();
                    cameraReloader();

                }
            });

void cameraReloader() {

    try {


      camera.stopPreview();

    } catch (Exception e) {

    }

    try {

        camera.setPreviewDisplay(cameraHolder);
        camera.startPreview();

    } catch (Exception e) {


    }

}

void cameraParameters() {

    Display display = ((WindowManager) getSystemService(WINDOW_SERVICE)).getDefaultDisplay();
    parameters.setFlashMode(Parameters.FLASH_MODE_TORCH);
    parameters.setFocusMode(Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
    parameters.setZoom(zoomIncrementer);
    parameters.setFocusMode(Parameters.FOCUS_MODE_MACRO);
    parameters.setWhiteBalance(Parameters.WHITE_BALANCE_AUTO);


    Log.d(TAG, String.valueOf(parameters.getMaxZoom()));


    if (display.getRotation() == Surface.ROTATION_0) {

        camera.setDisplayOrientation(90);

    }

    if (display.getRotation() == Surface.ROTATION_270) {

        camera.setDisplayOrientation(180);

    }

    camera.setParameters(parameters);

}