摘要：
该项目涉及拨号键盘的弹出。您希望在单击控制器时回收键盘，然后单击下面的选项卡以启用键盘显示。因为通常情况下，当您在当前界面中单击下面的选项卡时，它不再合适。在这里，您需要找到一个可以执行选项卡单击事件的代理方法步骤1：代理UITabBarControllerDelegate需要在主控制器上执行；步骤2：执行代理方法：-（void）tabBarController:（UITabBarCo
项目中有涉及到拨号键盘的弹出,想要在点击控制器的时候键盘回收,再点击下面的Tabbar实现键盘出现.由于正常情况下,当在当前界面的时候,点击下面的tabbar是不再相应的.这里就需要找到能执行tabbar点击事件的代理方法.
第一步:需要在主控制器执行代理UITabBarControllerDelegate;
第二步:执行代理方法:
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController.
这样的话即使是一直在此界面,点击对应的tabbar也会走这一步,可以在此方法写自己想要执行的操作.
举例代码如下:
第一步:设置代理:
@interface RootViewController ()<UITabBarControllerDelegate>第二步:设置UITabBarController.
1 ViewController1 *hosterVC =[[ViewController1 alloc]init]; 2 UINavigationController *hosterNC =[[UINavigationController alloc]initWithRootViewController:hosterVC]; 3 hosterNC.navigationBar.translucent =NO; 4 5 6 ViewController2 *menuListVC =[[ViewController2 alloc]init]; 7 UINavigationController *menuListNC =[[UINavigationController alloc]initWithRootViewController:menuListVC]; 8 menuListNC.navigationBar.translucent =NO; 9 10 ViewController3 *healthMainVC =[[ViewController3 alloc]init]; 11 UINavigationController *healthMainNC =[[UINavigationController alloc]initWithRootViewController:healthMainVC]; 12 healthMainNC.navigationBar.translucent =NO; 13 14 ViewController4 *zhiShiVC =[[ViewController4 alloc]init]; 15 UINavigationController *zhiShiNC =[[UINavigationController alloc]initWithRootViewController:zhiShiVC]; 16 zhiShiNC.navigationBar.translucent =NO; 17 18 ViewController5 *sanCanVC =[[ViewController5 alloc]init]; 19 UINavigationController *sanCanNC =[[UINavigationController alloc]initWithRootViewController:sanCanVC]; 20 sanCanNC.navigationBar.translucent =NO; 21 22 UITabBarController *rootVC =[[UITabBarController alloc]init]; 23 rootVC.viewControllers =@[menuListNC,healthMainNC,hosterNC,zhiShiNC,sanCanNC]; 24 25 UITabBarItem *item1 = [[UITabBarItem alloc]initWithTitle:@"菜单" image:[UIImage imageNamed:@"11@2x.png.png"] tag:101]; 26 UITabBarItem *item2 = [[UITabBarItem alloc]initWithTitle:@"养生" image:[UIImage imageNamed:@"12@2x.png.png"] tag:102]; 27 UITabBarItem *item3 = [[UITabBarItem alloc]initWithTitle:@"我的" image:[UIImage imageNamed:@"iconfont-wode-4.png"] tag:103]; 28 UITabBarItem *item4 = [[UITabBarItem alloc]initWithTitle:@"知识" image:[UIImage imageNamed:@"13@2x.png.png"] tag:104]; 29 UITabBarItem *item5 = [[UITabBarItem alloc]initWithTitle:@"三餐" image:[UIImage imageNamed:@"14@2x.png.png"] tag:105]; 30 menuListNC.tabBarItem =item1; 31 healthMainNC.tabBarItem =item2; 32 hosterNC.tabBarItem =item3; 33 zhiShiNC.tabBarItem =item4; 34 sanCanNC.tabBarItem =item5; 35 36 self.window.rootViewController = rootVC;
第三步:执行代理方法:
1 #pragma mark -- UITabBarDelegate 2 - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController 3 { 4 5 if (tabBarController ==self.tabbar) 6 { 7 8 if ([viewController.tabBarItem.title isEqualToString:@"菜单"]) 9 { 10 NSLog(@"执行你想要点击此tabBarItem执行的操作"); 11 12 } 13 } 14 }
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