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//视图已经切换后调用
-(void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController
{
}
//视图将要切换后调用
-(BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController
{
return YES;
}
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原文地址:http://www.cnblogs.com/kyuubee/p/4805022.html