小编Geo*_*ham的帖子

我如何获得我正在控制的视图或子视图的实际尺寸？例如:

UIView *firstView = [[UIView alloc] initWithFrame:CGRectMake(0,0,200,100)];
[self addSubview:firstView];

UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(10, 20, 230, 120)];
[firstView addSubview:button];

如您所见,我的button对象超出了添加到的视图的尺寸.

这是心灵(假设有许多对象被添加为子视图),我如何确定实际的宽度和高度firstView？