ios 横竖屏配置

改变self.view 在viewDidAppear、viewWillLayoutSubviews、viewDidLayoutSubviews方法中修改才能产生效果。

一个viewController的初始化大概涉及到如下几个方法的调用：

initWithNibName:bundle:{

初始化成员变量，做一些与view无关的事情

}

viewDidLoad

{

进行view布局相关性的调整：

比如：改变背景颜色、增加一些subView

}

viewWillAppear:animated:

{

viewDidAppear:animated:

viewWillLayoutSubviews

viewDidLayoutSubviews

改变self.view 在viewDidAppear、viewWillLayoutSubviews、viewDidLayoutSubviews方法中修改才能产生效果

}

所以在视图控制器里一般就在viewDidLayoutSubviews里改写view的frame。

代码demo如下：

- (void)viewDidLayoutSubviews{

[super viewDidLayoutSubviews];

UIView *view = self.view.superview;

[self.view setFrame:view.bounds];

self.progressView.frame  = CGRectMake(0, 0, self.view.bounds.size.width, 3);

self.backBtn.frame = CGRectMake(self.view.bounds.size.width-40, 0, 40, 40);

self.webView.frame = self.view.bounds;

}

如果是view中的话，就用

- (void)layoutSubviews{

[super layoutSubviews];

UIView *view = self.view.superview;

[self.view setFrame:view.bounds];

self.progressView.frame  = CGRectMake(0, 0, self.view.bounds.size.width, 3);

self.backBtn.frame = CGRectMake(self.view.bounds.size.width-40, 0, 40, 40);

self.webView.frame = self.view.bounds;

}