如何确定用户是否触摸了我的位图？

Question

How to determine if the user clicked in certain regions of my ImageView?

I'm having a little bit of difficulty setting the (x,y) coordinate bounds to detect when a particular bitmap is being clicked on or not.

For example if the bitmap's position is (75,75),say. ie top left corner is at this point, then if the user touches the screen at point (X,Y), then the simple conditional:

I have 4 image position that i draw in canvas it's (75,75),(645,75),(1215,75) and (75,490).

it wasn't able to determined what i click it always give me message, "mImaget" instead of the others.

@Override
public boolean onTouch(View v, MotionEvent event) {
    int x = (int) event.getX();
    int y = (int) event.getY();
    switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN:

             if (x >= 75 && x < (75 + mImaget.getWidth())
                    && y >= 75 && y < (75 + mImaget.getHeight())) {
                Toast.makeText(getActivity(), "mImaget", Toast.LENGTH_SHORT).show();
                Log.e("TOUCHED", "X: " + x + " Y: " + y + mImaget.getWidth() + "-" + mImaget.getHeight());
            }

            if (x >= 645 && x < (645 + mImageth.getWidth())
                    && y >= 75 && y < (75 + mImageth.getHeight())) {
                Toast.makeText(getActivity(), "mImageth", Toast.LENGTH_SHORT).show();
                Log.e("TOUCHED", "X: " + x + " Y: " + y + mImageth.getWidth() + "-" + mImageth.getHeight());
            }

            if (x >= 1215 && x < (1215 + mImagef.getWidth())
                    && y >= 75 && y < (75 + mImagef.getHeight())) {
                Toast.makeText(getActivity(), "mImagef", Toast.LENGTH_SHORT).show();
                Log.e("TOUCHED", "X: " + x + " Y: " + y + mImagef.getWidth() + "-" + mImagef.getHeight());
            }

            if (x >= 75 && x < (75 + mImageo.getWidth())
                    && y >= 490 && y < (490 + mImageo.getHeight())) {
                Toast.makeText(getActivity(), "mImageo", Toast.LENGTH_SHORT).show();
                Log.e("TOUCHED", "X: " + x + " Y: " + y + mImageo.getWidth() + "-" + mImageo.getHeight());
            }

            return true;
    }
    return false;
}

Thankyou :)

Answer 1

@Override
public boolean onTouch(View v, MotionEvent event) {
    int x = (int) event.getX();
    int y = (int) event.getY();
    switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN:

            if (x >= 75 && x < (75 + mBack.getWidth())
                    && y >= 75 && y < (75 + mBack.getHeight())) {
                Toast.makeText(getActivity(), "Zone1: " + x +"-" + y, Toast.LENGTH_SHORT).show();
            }

            if (x >= 645 && x < (645 + mBack.getWidth())
                    && y >= 75 && y < (75 + mBack.getHeight())) {
                Toast.makeText(getActivity(), "Zone2: " + x +"-" + y, Toast.LENGTH_SHORT).show();
            }

            if (x >= 1215 && x < (1215 + mBack.getWidth())
                    && y >= 75 && y < (75 + mBack.getHeight())) {
                Toast.makeText(getActivity(), "Zone3: " + x +"-" + y, Toast.LENGTH_SHORT).show();
            }

            if (x >= 75 && x < (75 + mBack.getWidth())
                    && y >= 490 && y < (490 + mBack.getHeight())) {
                Toast.makeText(getActivity(), "Zone4: " + x +"-" + y, Toast.LENGTH_SHORT).show();
            }

            Log.d("TOUCHED", "X: " + x + " Y: " + y + mImaget.getWidth() + "-" + mImaget.getHeight());


            return true;
    }
    return false;
}

Could you please try this one part of code instead your example.