如何在视图控制器 StoryBoard Xcode 之间发送数据

问题描述

请帮帮我..

我想在故事板中的不同控制器之间传递数据.例如.

I want to pass data between different controllers in storyboard.For Example.

第一个视图控制器

NSString *firstValue;

firstValue = @"First Number";

现在我想把它发送到结果视图控制器并存储在

Now I want to send this to the result view controller and store in

NSString *resultFromFirstVC;

并显示在标签中.

[label setText: resultFromFirstVC];

所以标签显示:

第一个数字

推荐答案

使用此方法在所有视图控制器中传递属性

Use this method to pass the property in all of your view controllers

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([[segue identifier] isEqualToString:@"ShowNewVC"]) {
        NextViewController *nextVC = (NextViewController *)[segue destinationViewController];
        nextVC.someProperty = self.myProperty;
    }
}

更改NextViewController"的名称以匹配您的名称.请务必在 Storyboard 文件中添加Segue Identifiers".

Change the name of "NextViewController" to match yours.Be sure to add the "Segue Identifiers" in your Storyboard file.

这应该有效.但是，当您必须通过如此多的视图控制器传递此属性时，您可以考虑创建一个单例数据管理器"对象来存储数据.视图控制器可以通过单例访问数据.

This should work. However, when you have to pass this property trough so many view controllers, you can consider creating a Singleton "Data Manager" object to store the data. The View Controllers would have access to the data through the singleton.

祝你好运！

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