首先 先在viewWillAppear 里面 注册通知

- (void)viewWillAppear:(BOOL)animated

{

[super viewWillAppear:animated];

//注册屏幕旋转 消息通知

[[NSNotificationCenter defaultCenter] addObserver:self

selector:@selector(changeFrames:)

name:UIDeviceOrientationDidChangeNotification

object:nil];

}

在viewDidLoad 初始化控件

收到通知后

//收到通知后改变view坐标

-(void)changeFrames:(NSNotification *)notification

{

CGRect rect = [UIScreen mainScreen].bounds;

if ([[UIDevice currentDevice] orientation]==UIInterfaceOrientationPortrait

|| [[UIDevice currentDevice] orientation]==UIInterfaceOrientationPortraitUpsideDown)

{

NSLog(@"portrait");

_fancyTabBar.frame=CGRectMake(rect.size.width-300,rect.size.height-300, 300, 300);

}

else

{

NSLog(@"横屏");

_fancyTabBar.frame=CGRectMake(rect.size.height-40,rect.size.width-550, 300, 300);

}

}

如果是ipad 版

//收到通知后改变view坐标

-(void)changeFrames:(NSNotification *)notification

{

CGRect rect = [UIScreen mainScreen].bounds;

if ([[UIDevice currentDevice] orientation]==UIInterfaceOrientationPortrait)

{

NSLog(@"竖屏home在下");

_fancyTabBar.frame=CGRectMake(rect.size.width-550,rect.size.height-550, 600, 700);

}

else if ([[UIDevice currentDevice] orientation]==UIInterfaceOrientationPortraitUpsideDown)

{

NSLog(@"竖屏home在下");

_fancyTabBar.frame=CGRectMake(rect.size.width-550,rect.size.height-550, 600, 700);

} else if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationLandscapeLeft ){

NSLog(@"横屏home在左");

_fancyTabBar.frame=CGRectMake(rect.size.height-300,rect.size.width-800, 600, 600);

} else{

NSLog(@"横屏home在右");

_fancyTabBar.frame=CGRectMake(rect.size.height-300,rect.size.width-800, 600, 600);

}

}