Code example for Camera.Area

    @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) 
    private void initializeFocusAreas(int focusWidth, int focusHeight,
            int x, int y, int previewWidth, int previewHeight) {
        if (mFocusArea == null) {
            mFocusArea = new ArrayList<Object>();
            mFocusArea.add(new Area(new Rect(), 1));
        } 
 
        // Convert the coordinates to driver format. 
        calculateTapArea(focusWidth, focusHeight, 1f, x, y, previewWidth, previewHeight,
                ((Area) mFocusArea.get(0)).rect);
    } 
 
    @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) 
    private void initializeMeteringAreas(int focusWidth, int focusHeight,
            int x, int y, int previewWidth, int previewHeight) {
        if (mMeteringArea == null) {
            mMeteringArea = new ArrayList<Object>();
            mMeteringArea.add(new Area(new Rect(), 1));
        }