我通过获取他的x和y坐标指向图像，但这些坐标不支持iPhone

Question

下面是我的代码，我得到的图像x和y坐标与iPhone设备完全匹配

    fragmentImageView.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {

            float density = getActivity().getResources()
                    .getDisplayMetrics().density;
            if (density == 4.0) {
                displayMetrixDensity = 640;
            }
            if (density == 3.0) {
                displayMetrixDensity = 480;
            }
            if (density == 2.0) {
                displayMetrixDensity = 320;
            }
            if (density == 1.5) {
                displayMetrixDensity = 160;
            }
            if (density == 1.0) {
                displayMetrixDensity = 160;
            }

            rowSize.x = (int) event.getRawX();
            rowSize.y = (int) event.getRawY();

            int[] viewCoords = new int[2];
            fragmentImageView.getLocationOnScreen(viewCoords);

            rowSize.x = rowSize.x - viewCoords[0]; // viewCoords[0] is the X
                                                    // coordinate
            rowSize.y = rowSize.y - viewCoords[1]; // viewCoords[1] is the y
                                                    // coordinate

            // DisplayMetrics displayMetrics =
            // getActivity().getResources().getDisplayMetrics();
            int dp = Math
                    .round(rowSize.x
                            / (displayMetrixDensity / DisplayMetrics.DENSITY_DEFAULT));
            int d = Math
                    .round(rowSize.y
                            / (displayMetrixDensity / DisplayMetrics.DENSITY_DEFAULT));

            rowSize.x = dp;
            rowSize.y = d;

        }
    });

这些像素也不支持Android上的大屏幕设备。

我怎么能解决它？