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问题描述

由于Eureka用于创建包含不同数据类型的新记录,其中一个是 MediaPicker ,我想知道如何呈现其viewController。



哪一排可以完成这项工作? PushRow ButtonRow



这是我的班级我在哪里尝试创建这个。

  import UIKit 
import MediaPlayer

import Eureka

公共决赛班MusicRow< T:Equatable> :SelectorRow< T,PushSelectorCell< T>,SelectorViewController< T>>,RowType {

public required init(tag:String?){
super.init(tag:tag)
presentationMode = .Show(controllerProvider:ControllerProvider.Callback {
return AddMusicViewController(){_ in}
},completionCallback:{vc in
vc.navigationController?.popViewControllerAnimated(true)
})
}
}

公共类AddMusicViewController:MPMediaPickerController,MPMediaPickerControllerDelegate {

var musicPicker:MPMediaPickerController!

public var row:RowOf< MPMediaItemCollection>!

public var completionCallback:((UIViewController) - >())?

public override func viewDidLoad(){
super.viewDidLoad()
//加载视图后进行任何其他设置。
//为tableView设置部分/行
addMusic()
}

//初始化musicPicker并自定义它
func addMusic(){
musicPicker = MPMediaPickerController.self(mediaTypes:.Music)
musicPicker.delegate = self
musicPicker.allowsPickingMultipleItems = true
view.addSubview(musicPicker.view)
}

//选择后,将数据存储到数组
public func mediaPicker(mediaPicker:MPMediaPickerController,didPickMediaItems mediaItemCollection:MPMediaItemCollection){
musicTemp = nil
musicTemp = mediaItemCollection
如果musicTemp == nil {
noMusic = true
} else {
noMusic = false
}
completionCallback?(self)
}

//取消mediaPickerController
public func mediaPickerDidCancel(mediaPicker:MPMediaPickerController){
//如果用户取消了
,则取消选择器noMusic = true
completionCallback?(self)
}
}

以下是我所面临的错误。



解决方案

虽然这是一个通用的问题,但我的要求是使用 MPMediaPickerController 。 / p>

以下是我的设置。

  import UIKit 
import MediaPlayer

导入Eureka

// MusicRow
公共最终类MusicRow:SelectorRow< MPMediaItemCollection,PushSelectorCell< MPMediaItemCollection> ;, AddMusicViewController> ;, RowType {
public required init(tag:String?){
super.init(tag:tag)
presentationMode = .Show(controllerProvider:ControllerProvider.Callback {return AddMusicViewContro ller(){_ in}},completionCallback:{vc in vc.navigationController?.popViewControllerAnimated(true)})
displayValueFor = {
guard var musicTitle = $ 0 else {return}
musicTitle = musicTemp!
let representativeItem = musicTitle.representativeItem
print(representativeItem = \(representativeItem))
let representativeItemTitle = representativeItem?.title
return\(representativeItemTitle)
}
}
}

// MusicViewController
公共类AddMusicViewController:UIViewController,TypedRowControllerType,MPMediaPickerControllerDelegate {

public var row :RowOf< MPMediaItemCollection>!
public var completionCallback:((UIViewController) - >())?

lazy var musicPicker:MPMediaPickerController = {[unowned self] in
let mediaPicker = MPMediaPickerController.self(mediaTypes:.Music)
return mediaPicker
}()

必需public init?(编码器aDecoder:NSCoder){
super.init(编码器:aDecoder)
}

公共覆盖init(nibName nibNameOrNil: String?,bundle nibBundleOrNil:NSBundle?){
super.init(nibName:nil,bundle:nil)
}

方便公共init(_ callback:(UIViewController) - >()){
self.init(nibName:nil,bundle:nil)
completionCallback = callback
}

public override func viewDidLoad(){
super.viewDidLoad()
view.addSubview(musicPicker.view)

musicPicker.delegate = self
musicPicker.allowsPickingMultipleItems = true

self.navigationItem.leftBarButtonItem = UIBarButtonItem(title:,st yle:.Plain,target:nil,action:nil)
}

//选择后,将数据存储到临时变量
public func mediaPicker(mediaPicker:MPMediaPickerController, didPickMediaItems mediaItemCollection:MPMediaItemCollection){
musicTemp = nil
musicTemp = mediaItemCollection
if musicTemp == nil {
noMusic = true
} else {
noMusic = false
row.value? = musicTemp!
}
completionCallback?(self)
}

//取消mediaPickerController
public func mediaPickerDidCancel(mediaPicker:MPMediaPickerController){
//如果用户取消了
,则取消选择器noMusic = true
completionCallback?(self)
}
}

我相信,根据任何人的个人要求调整它并不困难!


As Eureka is used for creating a new record, which includes different datatypes, one being MediaPicker, I'm wondering how to present its viewController.

Which row would do the job? PushRow or ButtonRow

Here is my class where I try to create this.

import UIKit
import MediaPlayer

import Eureka

public final class MusicRow<T: Equatable> : SelectorRow<T, PushSelectorCell<T>, SelectorViewController<T>>, RowType {

    public required init(tag: String?) {
        super.init(tag: tag)
        presentationMode = .Show(controllerProvider: ControllerProvider.Callback {
            return AddMusicViewController(){ _ in }
            }, completionCallback: { vc in
                vc.navigationController?.popViewControllerAnimated(true)
        })
    }
}

public class AddMusicViewController: MPMediaPickerController, MPMediaPickerControllerDelegate {

    var musicPicker: MPMediaPickerController!

    public var row: RowOf<MPMediaItemCollection>!

    public var completionCallback : ((UIViewController) -> ())?

    public override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        // Setup sections/rows for tableView
        addMusic()
    }

    // Initialize musicPicker and customize it
    func addMusic() {
        musicPicker = MPMediaPickerController.self(mediaTypes:.Music)
        musicPicker.delegate = self
        musicPicker.allowsPickingMultipleItems = true
        view.addSubview(musicPicker.view)
    }

    // After selection, store the data into an array
    public func mediaPicker(mediaPicker: MPMediaPickerController, didPickMediaItems mediaItemCollection: MPMediaItemCollection) {
        musicTemp = nil
        musicTemp = mediaItemCollection
        if musicTemp == nil {
            noMusic = true
        } else {
            noMusic = false
        }
        completionCallback?(self)
    }

    // Cancel mediaPickerController
    public func mediaPickerDidCancel(mediaPicker: MPMediaPickerController){
        // Dismiss the picker if the user canceled
        noMusic = true
        completionCallback?(self)
    }
}

Below is the error that I face.

解决方案

Although, this was a generic question, my requirement was to use a MPMediaPickerController.

Below is my setup.

import UIKit
import MediaPlayer

import Eureka

// MusicRow
public final class MusicRow : SelectorRow<MPMediaItemCollection, PushSelectorCell<MPMediaItemCollection>, AddMusicViewController>, RowType {
    public required init(tag: String?) {
        super.init(tag: tag)
        presentationMode = .Show(controllerProvider: ControllerProvider.Callback { return AddMusicViewController(){ _ in } }, completionCallback: { vc in vc.navigationController?.popViewControllerAnimated(true) })
displayValueFor = {
        guard var musicTitle = $0 else { return "" }
        musicTitle = musicTemp!
        let representativeItem = musicTitle.representativeItem
        print("representativeItem = \(representativeItem)")
        let representativeItemTitle = representativeItem?.title
        return  "\(representativeItemTitle)"
        }
    }
}

// MusicViewController
public class AddMusicViewController : UIViewController, TypedRowControllerType, MPMediaPickerControllerDelegate {

    public var row: RowOf<MPMediaItemCollection>!
    public var completionCallback : ((UIViewController) -> ())?

    lazy var musicPicker : MPMediaPickerController = { [unowned self] in
        let mediaPicker = MPMediaPickerController.self(mediaTypes:.Music)
        return mediaPicker
    }()

    required public init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    public override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: NSBundle?) {
        super.init(nibName: nil, bundle: nil)
    }

    convenience public init(_ callback: (UIViewController) -> ()){
        self.init(nibName: nil, bundle: nil)
        completionCallback = callback
    }

    public override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(musicPicker.view)

        musicPicker.delegate = self
        musicPicker.allowsPickingMultipleItems = true

        self.navigationItem.leftBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil)
    }

    // After selection, store the data into a temporary variable
    public func mediaPicker(mediaPicker: MPMediaPickerController, didPickMediaItems mediaItemCollection: MPMediaItemCollection) {
        musicTemp = nil
        musicTemp = mediaItemCollection
        if musicTemp == nil {
            noMusic = true
        } else {
            noMusic = false
            row.value? = musicTemp!
        }
        completionCallback?(self)
    }

    // Cancel mediaPickerController
    public func mediaPickerDidCancel(mediaPicker: MPMediaPickerController){
        // Dismiss the picker if the user canceled
        noMusic = true
        completionCallback?(self)
    }
}

I believe, it isn't hard to tweak it to anyone's personal requirements!

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09-14 13:27