iOS 标签栏控制器在所有标签中包含相同的表视图但过滤数据不同 [英] iOS Tab bar controller containing same Table views inside all tabs but different filtered data

问题描述

已解决:我想我知道如何去做了.

SOLVED: I think I figured it out on how to do it.

我为每个选项卡的每个视图控制器添加了标签.然后在视图控制器上的 viewDidLoad 方法中，我可以根据选择的选项卡标签添加一个开关:self.tabBarController.tabBar.selectedItem.tag

I added tags to each of my view controllers for each tab. Then in the viewDidLoad method on the view controllers, I can add a switch based on which tab's tag is selected: self.tabBarController.tabBar.selectedItem.tag

问题:

我对 iOS 开发还很陌生，需要一些反馈——这是场景:

I am pretty new to iOS development and need some feedback on this- Here is the scenario:

我为此使用了故事板.我们在标签栏控制器中有一个导航控制器.标签栏控制器在所有标签中包含相同类型的表格视图，但数据过滤方式不同.

I am using storyboards for this. We have a navigation controller inside a tab bar controller. The Tab bar controller contains the same types Table views inside all tabs but the data is filtered differently.

例如，选项卡 1 将显示所有类型的红色水果，选项卡 2 将显示所有类型的黄色水果等等.

For example Tab 1 will show all types of red fruits, tab 2 will show all kind of yellow fruits and so on.

现在，由于我使用的是故事板，我是否需要为每个选项卡从选项卡栏控制器创建 2 个不同的主视图控制器?或者我可以为两个选项卡使用相同的主视图控制器吗?

Now since I am using storyboards, do I need to create 2 different master view controllers branching from the tab bar controller for each tab? Or can I just use the same master view controller for both the tabs?

segue 上是否有类似标识符之类的东西，我可以使用它来指定选择了哪个选项卡?我在从 tabbarcontroller 到导航控制器的 segue 上找不到它.

Is there anything like an identifier on the segue which I can use specify which tab was selected? I couldn't find it on the segue from the tabbarcontroller to the navigation controllers.

当一个选项卡被选中时，有没有像prepareforsegue"这样的方法，我可以在destinationviewcontroller上预设过滤器?类似于我们在基于导航的应用程序中所拥有的东西?这样我就不必为每个选项卡创建不同的视图控制器.

When a tab is selected, is there any method like "prepareforsegue" where I can preset the filter on the destinationviewcontroller? something similiar to what we have in a navigation based application? That way I won't have to create a different view controller for each tab.

感谢您的帮助！

推荐答案

我为每个选项卡的每个视图控制器添加了标签.然后在视图控制器的 viewDidLoad 方法中，我可以根据选择的选项卡标签添加一个开关:self.tabBarController.tabBar.selectedItem.tag

I added tags to each of my view controllers for each tab. Then in the viewDidLoad method on the view controllers, I can add a switch based on which tab's tag is selected: self.tabBarController.tabBar.selectedItem.tag

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