Question

如何确定用户是否点击了我的ImageView的某些区域？

设置（x，y）坐标边界以检测特定位图是否被点击时，我遇到了一些困难。

例如，如果位图的位置是（75,75），那么。即左上角就在这一点，然后如果用户在点（X，Y）触摸屏幕，那么简单的条件：

我有4个图像位置，我在画布上绘制（75,75），（645,75），（1215,75）和（75,490）。

它无法确定我点击它总是给我留言，“mImaget”而不是其他。

@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;
}

谢谢你：）

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;
}

请你试试这部分代码而不是你的例子。

如何确定用户是否触摸我的位图？

1 个答案: