objective-c - 使用 presentViewController:animated:completion 时如何将数据传递给呈现的 View Controller

Question

使用 presentViewController:animated:completion 方法时，如何将数据传递给呈现的 View Controller？

Answer 1

您应该在呈现的视图控制器界面中公开属性并从呈现的视图控制器设置它们。

PresentedViewController* presented = [PresentedViewController new];
presented.stringProperty = @"Hello world!"

[self presentViewController:presented animated:YES completion:^ {
    presented.anotherStringProperty = @"Hello again, world!"; //Set here if you need to pass the value after presentation.
}];