PushView on PresentViewController iOS

Question

我想用Push viewController on PresentViewController

当我最初单击按钮时，我正在加载PresentViewController，下面是我的代码。

- (IBAction)JoinClicked:(id)sender{

    JoinWithViewController *detail_view_controller = [[JoinWithViewController alloc] initWithNibName:@"JoinWithViewController" bundle:nil];
    [self.view.window.rootViewController presentViewController:detail_view_controller
                                                      animated:YES
                                                    completion:NULL];

}

这很好，但是当我单击PresentViewController上的按钮时，我想按一下我的视图，但是in不按。

--请帮忙，谢谢--

Answer 1

JoinWithViewController *detail_view_controller = [[JoinWithViewController alloc] initWithNibName:@"JoinWithViewController" bundle:nil];
[self.navigationController pushViewController:detail_view_controller animated:YES];

试着像这样推动viewController。如果您使用TabBar，请在AppDelegate中这样做。如果您创建了TabBar，那么拖放就意味着保留它。按如下所示以编程方式创建TabBar。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    UITabBarController *tabController = [[UITabBarController alloc]init];

    self.viewController = [[CalculatorViewController alloc] initWithNibName:@"CalculatorViewController" bundle:nil];
    UITabBarItem *tab_item1 = [[UITabBarItem alloc]init];
    //tab_item1.title = @"Calculator";
    tab_item1.image = [UIImage imageNamed:@"Calculator.png"];
    [self.viewController setTabBarItem:tab_item1];
    UINavigationController *nav1 = [[UINavigationController alloc]initWithRootViewController:self.viewController];

    ShowPhoneViewController *phone = [[ShowPhoneViewController alloc]init];
    UITabBarItem *tab_item2 = [[UITabBarItem alloc]init];
    tab_item2.title = @"Latest Mobiles";
    tab_item2.image = [UIImage imageNamed:@"Mobile.png"];
    [phone setTabBarItem:tab_item2];
    UINavigationController *nav2 = [[UINavigationController alloc]initWithRootViewController:phone];

    CurrencyConvertorViewController *currency = [[CurrencyConvertorViewController alloc]init];
    UITabBarItem *tab_item3 = [[UITabBarItem alloc]init];
    tab_item3.title = @"Units Convertor";
    tab_item3.image = [UIImage imageNamed:@"Dollar.png"];
    [currency setTabBarItem:tab_item3];
    UINavigationController *nav3 = [[UINavigationController alloc]initWithRootViewController:currency];

    SettingsPageViewController *setting = [[SettingsPageViewController alloc]init];
    UITabBarItem *tab_item4 = [[UITabBarItem alloc]init];
    tab_item4.title = @"Settings";
    tab_item4.image = [UIImage imageNamed:@"Settings.png"];
    [setting setTabBarItem:tab_item4];
    UINavigationController *nav4 = [[UINavigationController alloc]initWithRootViewController:setting];


    tabController.viewControllers = [NSArray arrayWithObjects:nav1, nav2, nav3, nav4, nil];
    self.window.rootViewController = tabController;

    [self.window makeKeyAndVisible];
    return YES;
}

我希望你现在

Answer 2

pushviewcontroller是UINavigationController的特性，您可以将一个视图控制器推到另一个vierw控制器上。在这里，您使用单个视图控制器作为rootview控制器，因此要么必须将rootviewcontroller更改为UINavigationcontroller，要么可以使用"addSubview method“在当前视图控制器上添加新的viewcontroller。

但是更好的选择是将uinavigationcontroller添加为rootviewcontroller.

AppDelegate.m -(UIApplication*)应用程序didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { FirstViewController *first = [FirstViewController alloc initWithNibName:@"FirstViewController“bundle:nil]；UINavigationController *navController =[UINavigationController alloc initWithRootViewController:first]；self.window setRootViewController:navController；}

现在，当您想从FirstViewController切换到SecondViewController时，单击按钮时，就必须使用推视图控制器。

FirstViewController.h -( SecondViewController *SecondViewController= [SecondViewController alloc initWithNibName:@"SecondViewController“bundle:nil]；self.navigationController pushViewController:第二个动画:TRUE；}