Android layout 在图像视图的thr图像上设置标记

Android layout 在图像视图的thr图像上设置标记,android-layout,android-imageview,android-image,Android Layout,Android Imageview,Android Image,我只是想在图像的特定(x,y)位置设置uo标记![在此处输入图像描述][1] 我曾经尝试过使用位图和画布函数,但直到现在我才发现任何东西都不起作用 Bitmap viewBitmap = Bitmap.createBitmap(image.getWidth(),image.getHeight(),Bitmap.Config.ALPHA_8);//i is imageview which u want to convert in bitmap Canvas canvas = ne

我只是想在图像的特定(x,y)位置设置uo标记![在此处输入图像描述][1]

我曾经尝试过使用位图和画布函数,但直到现在我才发现任何东西都不起作用

     Bitmap viewBitmap = Bitmap.createBitmap(image.getWidth(),image.getHeight(),Bitmap.Config.ALPHA_8);//i is imageview which u want to convert in bitmap
    Canvas canvas = new Canvas(viewBitmap);
    Paint paint = new Paint(2222);
    viewBitmap.extractAlpha();
    viewBitmap.eraseColor(getWallpaperDesiredMinimumHeight());
    viewBitmap = viewBitmap.extractAlpha(paint, null);
    canvas.drawBitmap(viewBitmap, 10, 10,paint);
    canvas.drawCircle(20, 20, 5, paint);
    canvas.clipRect(10,10, 10, 10);
    image.draw(canvas);
你可以用这个

@Override
public boolean onTouch(View view, MotionEvent event) {
    float eventX = event.getX();
    float eventY = event.getY();
    int x1=(int)eventX;
    int y1=(int)eventY;
    setLocation(x1, y1);
    return false;
}
public void setLocation(int x, int y) {
    final LinearLayout iv = (LinearLayout) findViewById(R.id.tag_relay);
    final AbsoluteLayout.LayoutParams lp = (AbsoluteLayout.LayoutParams) iv.getLayoutParams();
    lp.x = x;
    lp.y = y;
    iv.setLayoutParams(lp);
    //  iv.setVisibility(View.VISIBLE);

}