新手，如何重绘RelativeLayout？

Question

@Override
protected void onDraw(Canvas canvas)
{
super.onDraw(canvas);
Paint paint=new Paint();
paint.setStyle(Style.FILL);
paint.setColor(Color.RED);
canvas.drawRect(0, 0, 100, 100, paint);
}尝试把这段放在dispatchDraw里面。

Answer 1

@Override
protected void dispatchDraw(Canvas canvas)
{
super.dispatchDraw(canvas);
Paint paint=new Paint();
paint.setStyle(Style.FILL);
paint.setColor(Color.RED);
canvas.drawRect(0, 0, 100, 100, paint);
}onDraw没有跑到。