我的活动中有一个imageview,我可以通过onTouchListener获得用户触摸imageview的位置.我在用户触摸该图像的位置放置了另一个图像.我需要存储触摸位置(x,y),并在另一个活动中使用它来显示标签.我将触摸位置存储在第一个活动中.在第一个活动中,我的图像视图位于屏幕顶部.在第二个活动中它位于屏幕的底部.如果我使用从第一个活动中存储的位置,它会将标记图像放在顶部,而不是我之前在第一个活动中单击的imageview.无论如何都要在imageview中获得位置.

FirstActivity：

cp.setOnTouchListener(new OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            x = (int) event.getX();
            y = (int) event.getY();

            Log.v("touched x val of cap img >>", x + "");
            Log.v("touched y val of cap img >>", y + "");

            tag.setVisibility(View.VISIBLE);

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

            int imageX = x - viewCoords[0]; // viewCoods[0] is the X coordinate
            int imageY = y - viewCoords[1]; // viewCoods[1] is the y coordinate
            Log.v("Real x >>>",imageX+"");
            Log.v("Real y >>>",imageY+"");

            RelativeLayout rl = (RelativeLayout) findViewById(R.id.lay_lin);
            ImageView iv = new ImageView(Capture_Image.this);
            Bitmap bm = BitmapFactory.decodeResource(getResources(),
                    R.drawable.tag_icon_32);
            iv.setImageBitmap(bm);
            RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
                    RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
            params.leftMargin = x;
            params.topMargin = y;
            rl.addView(iv, params);

            Intent intent= new Intent(Capture_Image.this,Tag_Image.class);
            Bundle b=new Bundle();
            b.putInt("xval", imageX);
            b.putInt("yval", imageY);
            intent.putExtras(b);
            startActivity(intent);

            return false;
    }
});

在TagImage.java中我使用了以下内容：

im = (ImageView) findViewById(R.id.img_cam22);
b=getIntent().getExtras();
xx=b.getInt("xval");
yy=b.getInt("yval");

im.setOnTouchListener(new OnTouchListener() {

    @Override
    public boolean onTouch(View v, MotionEvent event) {
         int[] viewCoords = new int[2];
            im.getLocationOnScreen(viewCoords);

            int imageX = xx + viewCoords[0]; // viewCoods[0] is the X coordinate
            int imageY = yy+ viewCoords[1]; // viewCoods[1] is the y coordinate
            Log.v("Real x >>>",imageX+"");
            Log.v("Real y >>>",imageY+"");
        RelativeLayout rl = (RelativeLayout) findViewById(R.id.lay_lin);
        ImageView iv = new ImageView(Tag_Image.this);
        Bitmap bm = BitmapFactory.decodeResource(getResources(),
                R.drawable.tag_icon_32);
        iv.setImageBitmap(bm);
        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
                30, 40);
        params.leftMargin =imageX ;
        params.topMargin = imageY;
        rl.addView(iv, params);
        return true;

    }
});

解决方法:

您可以按如下方式获取视图的左上角：

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

从这个和触摸坐标,您可以计算ImageView内的点：

int touchX = (int) event.getX();
int touchY = (int) event.getY();

int imageX = touchX - viewCoords[0]; // viewCoords[0] is the X coordinate
int imageY = touchY - viewCoords[1]; // viewCoords[1] is the y coordinate