是否可以从标签栏项目执行转场? [英] is it possible to perform a segue from tab bar item?

问题描述

我为我的应用主页使用了 UIview 控制器，然后像 Facebook 一样在底部添加了一个标签栏，然后又添加了 3 个标签栏项目，当将标签栏项目拖动到视图控制器，是否可以通过编程或故事板?

I used a UIview controller for my app home page and then added a tab bar at the bottom just like Facebook and then added 3 more tab bar item, it doesn't let me perform a segue when drag the tab bar item to a View Controller, is it possible progmatically or in storyboard?

推荐答案

我遇到了同样的问题，但我找不到一种方法，将它自己的 viewController 分配给一个 viewController，就像在 TabViewController 的情况下一样.

I had the same problem, but i couldn't find a way to assign to a viewController its own viewControllers as in the TabViewController case.

我使用容器解决了这个问题. tabBar 中的每个 tabBarItem 都有一个容器，根据 tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item 方法.

I solved it using containers. One container for each tabBarItem in your tabBar, which are hidden or showed depending of the selected tabBarItem in the tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item method.

1. 在 storyBoard 的 UIviewController 中创建容器:就像这样选择你的 tabBar 和 Ctrl+Drag 来委托类来监听 tabBarDelegate 方法:看这里

1. Create your containers in your UIviewController in storyBoard: Just like this Select your tabBar and Ctrl+Drag to delegate the class for listen the tabBarDelegate methods: look here

2. 声明相应的 IBOutlets，包括您的 tabBAr:

2. Declare the corrisponging IBOutlets, incliding your tabBAr:

#import <UIKit/UIKit.h>

@interface TabsMainViewController : UIViewController

@property (strong, nonatomic) IBOutlet UITabBar *tabBar;
@property (strong, nonatomic) IBOutlet UIView *directoryContainer;
@property (strong, nonatomic) IBOutlet UIView *groupsContainer;
@end

3. 选择要在 tabBarDelegate 方法中显示的容器:

3. Select the container to show in the tabBarDelegate method:

-(void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item {

            switch (item.tag) {
            case 1:
                _directoryContainer.hidden = NO;
                _groupsContainer.hidden = YES;
             break;

            case 2:
                _directoryContainer.hidden = YES;
                _groupsContainer.hidden = NO;
                break;

            default:
                break;
        }

    }

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