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隐藏uitabbar的代码：
/**
* 隐藏UITabbar
*
* @param hidden yes隐藏
*/
- (void)hidesTabBar:(BOOL)hidden{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0];
for (UIView *view in self.tabBarController.view.subviews) {
if ([view isKindOfClass:[UITabBar class]]) {
if (hidden) {
[view setFrame:CGRectMake(view.frame.origin.x, [UIScreen mainScreen].bounds.size.height, view.frame.size.width , view.frame.size.height)];
}else{
[view setFrame:CGRectMake(view.frame.origin.x, [UIScreen mainScreen].bounds.size.height - 49, view.frame.size.width, view.frame.size.height)];
}
}else{
if([view isKindOfClass:NSClassFromString(@"UITransitionView")]){
if (hidden) {
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, [UIScreen mainScreen].bounds.size.height)];
}else{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, [UIScreen mainScreen].bounds.size.height - 49 )];
}
}
}
}
[UIView commitAnimations];
}
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原文地址：http://www.cnblogs.com/zhou--fei/p/4964961.html
