UIViewController 的frame 无法修改

[rollrock1987]

我想修改下 UIViewController 的view的frame，在viewDidLoad的时候修改了是对的

但是为什么在ddd函数里面打印出来的跟没修改之前是一样的呢？（没有其他任何代码）

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.

CGRect frame = self.view.frame;

frame.size.height -= 100;
self.view.frame = frame;

NSLog(@"Rollrock-%f-%f",self.view.frame.origin.y,self.view.frame.size.height);

NSLog(@"Rollrock~%f-%f",self.view.bounds.origin.y,self.view.bounds.size.height);

UIButton * btn = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 100, 100)];
[btn addTarget:self action:@selector(ddd) forControlEvents:UIControlEventTouchDown];

[self.view addSubview:btn];


self.view.backgroundColor = [UIColor redColor];
}

-(void)ddd
{
NSLog(@"Rollrock-%f-%f",self.view.frame.origin.y,self.view.frame.size.height);

NSLog(@"Rollrock~%f-%f",self.view.bounds.origin.y,self.view.bounds.size.height);
}

[Evan_Lei]

self.view.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height - 100);

[rollrock1987]

楼上的 跟我的 有什么不一样么？

[不担心]

都没看到你调用ddd方法

[zhouming0100]

viewDidLoad,函数，将整个view已经加载到内存中，你修改时无效的。