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

Question

使用presentViewController时：animated：completion方法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，并从呈现视图控制器中设置它们。

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.
}];