IOS Development Click Tabbaritem Add whether Jump login page to judge

• First set the agent for Uitabbarcontroller as appdelegate as follows: Mytabbar.delegate = self;

• Then write a proxy on the back of interface <UITabBarControllerDelegate>

• Implement the agent inside the-(BOOL) Tabbarcontroller: (Uitabbarcontroller *) Tabbarcontroller Shouldselectviewcontroller: ( Uiviewcontroller *) Viewcontroller method can be

-  (BOOL) Tabbarcontroller: (uitabbarcontroller *) Tabbarcontroller shouldselectviewcontroller: ( uiviewcontroller *) Viewcontroller{    nslog (@ "--tabbaritem.title--%@", ViewController.tabBarItem.title)         //Here I'm judging the title of the currently clicked Tabbaritem     if  ([viewcontroller.tabbaritem.title isequaltostring:@ "personal"])  {         //If the user ID exists, the description is logged in         if   (user_id)  {            return YES;         }        else         {             //Jump to the login page             hploginviewcontroller  *login = [[hploginviewcontroller alloc] init];            // Hide Tabbar            login.hidesbottombarwhenpushed  = yes;            [(( uinavigationcontroller *) Tabbarcontroller.selectedviewcontroller)  pushViewController:login  animated:yes];                         return NO;         }    }    else         Return yes;}

IOS Development Click Tabbaritem Add whether Jump login page to judge