btn1=[UIButton buttonWithType:UIButtonTypeRoundedRect];
[btn1 setTitle:@"OK" forState:UIControlStateNormal];
[btn1 setFrame:CGRectMake(10, 10, 100, 50)];
[self.view addSubview:btn1];
[btn1 release];这是源码,为什么运行后,Button的title没法显示呢?
[btn1 setTitle:@"OK" forState:UIControlStateNormal];
[btn1 setFrame:CGRectMake(10, 10, 100, 50)];
[self.view addSubview:btn1];
[btn1 release];这是源码,为什么运行后,Button的title没法显示呢?
有用,不过为什么release Button会有问题?title是release前设置好了
只有init的UIButton才需要release。