我想在一个作为res/drawable/schoolboard.png
的图片上画一个圆。该图片填充了整个活动背景。以下方法不起作用:
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.schoolboard);
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setColor(Color.BLUE);
Canvas canvas = new Canvas(bitmap);
canvas.drawCircle(60, 50, 25, paint);
ImageView imageView = (ImageView)findViewById(R.drawable.schoolboard);
imageView.setAdjustViewBounds(true);
imageView.setImageBitmap(bitmap);
任何帮助都将不胜感激。谢谢。
android:background="@drawable/schoolboard"
。现在它可以工作了! - Kfir