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我有這樣的代碼,裏面appdelegate.m(在didfinishlaunchingwithoptions內)獲取Tab Bar控制器的索引和標題?
MeuPrimeiroViewController *primeiro = [[MeuPrimeiroViewController alloc] init];
UINavigationController *nav1 = [[UINavigationController alloc] init];
[nav1 pushViewController:primeiro animated:YES];
MeuSegundoViewController *segundo = [[MeuSegundoViewController alloc] init];
UINavigationController *nav2 = [[UINavigationController alloc] init];
[nav2 pushViewController:segundo animated:YES];
UITabBarController *tabbar = [[UITabBarController alloc] init];
tabbar.viewControllers = [NSArray arrayWithObjects:nav1, nav2, nil];
nav1.tabBarItem.title = @"Primeiro";
nav2.tabBarItem.title = @"Segundo";
nav1.tabBarItem.image = [UIImage imageNamed:@"um.png"];
nav2.tabBarItem.image = [UIImage imageNamed:@"dois.png"];
,我需要知道,我怎麼能在索引和標題時,標籤欄的變化?我在哪裏放置代碼?在appdelegate內?哪裏?
你的問題還不清楚。 「挑選指數」是什麼意思?你的意思是你希望以編程方式選擇一個特定的標籤,或者你的意思是你希望在用戶選擇一個標籤時收到通知? – rmaddy