如何在iOS上运行时创建控件

Question

有没有办法在运行时创建控件？我试过像

这样的东西

UIButton* tempButton = [[UIButton alloc] initWithFrame:CGRectMake(120, 160, 40, 40)];
[self.view insertSubview:tempButton atIndex:0];
[tempButton release];

它不起作用

Answer 1

UIButton* tempButton = [[UIButton buttonWithType:UIButtonTypeRoundedRect] initWithFrame:CGRectMake(120, 160, 40, 40)];
[self.view insertSubview:tempButton atIndex:0];
[tempButton release];