请看标题
如果我在画布上使用drawCircle,但通过以下代码不断创建新画布,旧的圆形会消失吗?我知道这可能不是高效的做法,但我很好奇。
ImageView background = (ImageView) findViewById(R.id.Background);
Bitmap bitmap = Bitmap.createBitmap(500,500, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
paint.setStyle(Paint.Style.FILL);
paint.setColor(Color.BLUE);
canvas.drawCircle(point0,point1,10,paint);
background.setImageBitmap(bitmap)
谢谢