从 Tabar 多次链接到视图 [英] Linking to a view multiple times from tabar

问题描述

我正在尝试设置我的应用程序，因此我可以将多个标签栏项目链接到同一个视图控制器，但传入不同的参数以适当地设置视图.

I am trying to setup my application, so I can have multiple tabbar items link to the same view controller,but pass in different parameters to setup the view appropriately.

我的设置如下标签栏控制器NavbarController - TabBarItem1人物视图NavbarController - TabBarItem2内容视图

My setup is as follows TabBarController NavbarController - TabBarItem1 PeopleView NavbarController - TabBarItem2 ContentView

我希望我的设置

TabBarController
    NavbarController1 - TabBarItem1
        Links to: PeopleView
    NavbarController2 - TabBarItem2
        Links to: ContentView
    NavbarController3 - TabBarItem3
        Links to: ContentView //Same VC as TabBaritem 2.

我尝试将下面的代码放在我的 appdelage 中并实现 UITabBarControllerDelegate，但我的应用程序总是因此错误而崩溃

I have tried putting the code below in my appdelage and implementing the UITabBarControllerDelegate, but my application always crashes with this error

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-    [UITabBarController pushViewController:animated:]: unrecognized selector sent to instance 0x8fce7c0'

这是我实现的代码:

- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {

NSLog(@"controller class: %@", NSStringFromClass([viewController class]));
NSLog(@"controller title: %@", viewController.title);
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
MediaList *mediaList = [storyboard  instantiateViewControllerWithIdentifier:@"SB_MediaList"];
[(UINavigationController*)self.window.rootViewController pushViewController:mediaList animated:YES];


}

最重要的是，我希望以正确的方式来实现这一点，以避免为完全相同的功能提供三个类和屏幕.

More than anything I would like to proper way to accomplish this to avoid having three classes and screens for the exact same functionality.

对不起，如果这是一个非常基本的问题......

Sorry if this is a very basic question....

推荐答案

试试这个方法，

- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {

    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    DemoViewController *demoView = [storyboard  instantiateViewControllerWithIdentifier:@"DemoView"];
    UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:demoView];
    NSMutableArray *viewsArray = [NSMutableArray arrayWithArray:self.viewControllers];

    if (viewController.tabBarItem.tag == 1) {
        //Load data for your demoView instance for tabBarItem 1
    } else if (viewController.tabBarItem.tag == 2) {
        //Load data for your demoView instance for tabBarItem 2
    }

    [viewsArray replaceObjectAtIndex:viewController.tabBarItem.tag withObject:navigationController];
    self.viewControllers = viewsArray;
}

我在这里上传了项目https://github.com/coch3/iOS---STCK-Q-19056515

这篇关于从 Tabar 多次链接到视图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！