1 UITabBarController 进入某个tableViewcontroller后，在进入tableViewcontroller
这个时候如果再点击当前的TabBarItem,会自动调用popViewControllerAnimated
变态设计要出现几个分类按钮，解决问题关键
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController
{
// NSLog(@"good to see it");
if (self.selectedViewController == viewController ) {
if ([((UINavigationController*)viewController).visibleViewController respondsToSelector:@selector(showCategoryBtns)]) {
[ (TableViewController*)(((UINavigationController*)viewController).visibleViewController) showCategoryBtns];
return NO;解决问题关键
}
}
return YES;
}
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