解除subView

Question

我在FirstViewController中有这样一段代码

{
SecondViewController *objComing=[[SecondViewController alloc] init];
[self.view addSubview:objComing.view];

objComing.view.backgroundColor=[UIColor blueColor];

objComing.view.frame=CGRectMake(0,420, 320, 0);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];

[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
objComing.view.frame=CGRectMake(0,0, 320, 420);

[UIView commitAnimations];
}

SecoundViewController包含关闭/关闭按钮。如果要取消/删除和隐藏此覆盖层，IBAction连接到按钮(包含在SecoundViewController中)应如何显示？

Answer 1

在Close/dismiss按钮方法中，添加以下行以删除第二个视图控制器子视图：

[self.view removeFromSuperview];

Answer 2

self.view removeFromSuperview；