我正在寻找帮助,找出如何在MultivaluedSection中创建一个具有第二个Eureka形式的视图控制器,并将值返回到MultivaluedSection行。我已经能够使用常规ButtonRow使用segue推送视图控制器,但我无法弄清楚是不是将值返回到MultivaluedSection中的行。我不确定ButtonRow方法是否支持返回值,所以我开始寻找其他解决方案。我找到的是使用自定义的演示者行(https://github.com/xmartlabs/Eureka#custom-presenter-rows),但我不明白如何使这项工作。
这里有一件事我找到了,但又一次,我不明白如何把它们放在一起:
帮助创建简单的自定义Presenter行 - https://github.com/xmartlabs/Eureka/issues/716
有人可以指向我的工作样本或帮助我完成此设置吗?
答案 0 :(得分:2)
如果你已经推出了一个带有segue的新VC,那么你可能想要实现一个协议并定义函数来传回数据。
Here是导航控制器的一个很好的教程,最后添加了一个协议。
例如:
class FormVC: FormViewController , FooViewControllerDelegate{
var text : String!
override func viewDidLoad() {
super.viewDidLoad()
}
/// Delegate protocol callback implementation
func myVCDidFinish(controller: FooViewController, text: String) {
// Receive the data as a delegate
self.text = text
// In this case we also want to finish the view
controller.navigationController?.popViewController(animated: true)
}
/// This represents the prepare for segue mentioned as implemented in the question
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Act upon the segue we want from this VC
// The string is defined in the storyboard, so it must be exactly the same
if segue.identifier == "mySegue"{
// Creating the second VC instance
let vc = segue.destination as! FooViewController
// Since this class is now a delegate, setup the delegate
vc.delegate = self
}
}
}
protocol FooViewControllerDelegate {
func myVCDidFinish(controller: FooViewController, text: String)
}
class FooViewController: UIViewController {
/// Data
var text : String!
/// Set up an optional delegate
var delegate:FooViewControllerDelegate? = nil
override func viewDidLoad() {
super.viewDidLoad()
// Init label
self.text = "Pushed view data to pass back
}
}