判断self.navigationItem.leftBarButtonItem的title:if([self.navigationItem.leftBarButtonItem.title isEqualToString:@"Login"]){
NSLog(@"要弹出登录界面");
}另外,你的self.navigationItem.leftBarButtonItem是怎么创建的?
NSLog(@"要弹出登录界面");
}另外,你的self.navigationItem.leftBarButtonItem是怎么创建的?
self.navigationItem.leftBarButtonItem = item;