本文介绍了一个简单的Objective-C方法来隐藏和重新显示iOS应用中的TabBar。通过修改TabBar的位置使其移出屏幕可见区域来实现隐藏效果，并提供了相应的显示方法将其恢复到正常位置。
原理就是将tabbar移出显示区
-(void)hideSystemTabBar:(UITabBar*) tabbarcontroller {
[UIView beginAnimations:nil context:NULL];//动画效果，可以不用
[UIView setAnimationDuration:0.1];
for(UIView* view in tabbarcontroller.subviews)
{
if([view isKindOfClass:[UITabBarclass]])
{
[view setFrame:CGRectMake(view.frame.origin.x,WCGLOBAL_SCREEN_SIZE.height, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width,WCGLOBAL_SCREEN_SIZE.height)];
}
}
[UIView commitAnimations];
}
-(void)showSystemTabBar:(UITabBarController*) tabbarcontroller {
// [UIView beginAnimations:nil context:NULL];
// [UIView setAnimationDuration:0.5];
for(UIView* view in tabbarcontroller.view.subviews)
{
NSLog(@"%@", view);
if([view isKindOfClass:[UITabBarclass]])
{
[view setFrame:CGRectMake(view.frame.origin.x,WCGLOBAL_SCREEN_SIZE.height - WCTabBarHeight, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width,WCGLOBAL_SCREEN_SIZE.height - WCTabBarHeight)];
}
}
// [UIView commitAnimations];
}
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