标签不随 Segue 改变 [英] label not changing with Segue

问题描述

我的 DetailViewController 上有一个标签，当我尝试编辑它时它没有改变.

I have a label on my DetailViewController and it's not changing when I try to edit it.

这是我的代码目前的样子

This is how my code currently looks like

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([[segue identifier] isEqualToString:@"MySegue"]) {
        // Get destination view
       DetailViewController *vc = [segue destinationViewController];
        NSLog(@"Goes here");

       vc.titleLabel.text = @"My new UIlabel";

    }
}

推荐答案

你可以使用 NSNotification 或者更好的在你的情况下通过 NSUserDefaults 使用它:

You could use NSNotification or better in your case use this via NSUserDefaults:

[[NSUserDefaults standardUserDefaults] setObject:@"My Label" forKey:@"detailTitle"];
[[NSUserDefaults standardUserDefaults] synchronise];

并在您阅读的 Detail 的 viewWillAppear 中:

and in the viewWillAppear of the Detail you read it:

self.titleLabel.title = [[NSUserDefaults standardUserDefaults] objectForKey:@"detailTitle"];

这篇关于标签不随 Segue 改变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！