Ios 如何通过UIActivityViewController与Swift共享.mp3文件？_Ios_Iphone_Swift_Uiactivityviewcontroller

Ios 如何通过UIActivityViewController与Swift共享.mp3文件？

ios iphone swift

Ios 如何通过UIActivityViewController与Swift共享.mp3文件？,ios,iphone,swift,uiactivityviewcontroller,Ios,Iphone,Swift,Uiactivityviewcontroller,在我的应用程序中，我下载了一个扩展名为.mp3的音乐文件，并将其保存到DocumentDirectory。检索url并创建NSData变量后，通过UIActivityViewController在电报上共享它。电报上出现的文件没有分机，无法播放。它的名字是“文件”。我想让音乐在电报上看起来像“test.mp3”。这是我的密码： var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask,

在我的应用程序中，我下载了一个扩展名为.mp3的音乐文件，并将其保存到DocumentDirectory。检索url并创建NSData变量后，通过UIActivityViewController在电报上共享它。电报上出现的文件没有分机，无法播放。它的名字是“文件”。我想让音乐在电报上看起来像“test.mp3”。这是我的密码：

var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0].stringByAppendingString("/test.mp3")                    

let soundData=NSData(contentsOfFile: paths)

let r = NSURL(fileURLWithPath: paths)

let activityViewController = UIActivityViewController(activityItems: [r] , applicationActivities: nil)

我以前从未使用过电报API，但您需要做的是创建一个自定义的

UIActivity

，它将存储从本地检索歌曲的信息，这样您就可以对

UIActivity

的选择做出反应，并使用歌曲数据调用电报API

1）通过子类化

UIActivity

创建自定义活动

class YourCustomActivity: UIActivity {

    var title: String!
    var image: UIImage?
    var type:UIActivityType!
    var path: String!


    init(title: String, image: UIImage?, path: String) {
        super.init()
        self.path = path
        self.image = image
        self.title = title
        type = UIActivityType(rawValue: title)
    }

    override var activityType: UIActivityType {
        return self.type
    }

    override var activityTitle: String {
        return self.title
    }

    override var activityImage: UIImage? {
        return self.image
    }

    var activityCategory: UIActivityCategory {
        return .share
    }

    override func canPerform(withActivityItems activityItems: [Any]) -> Bool {
        return true
    }

    override func prepare(withActivityItems activityItems: [Any]) {

    }

    override func perform() {

    }

}

class func getTelegramActivitiesFor(path: String) -> [YourCustomActivity] {
    // You have to supply your own "Telegram_Logo"
    return [YourCustomActivity(title: "Telegram", image: UIImage.init(named: "Telegram_Logo", in: Bundle.main, compatibleWith: nil), path: path)]
}

2）创建一个类方法，该类方法将实例化您的电报

UIActivity

class YourCustomActivity: UIActivity {

    var title: String!
    var image: UIImage?
    var type:UIActivityType!
    var path: String!


    init(title: String, image: UIImage?, path: String) {
        super.init()
        self.path = path
        self.image = image
        self.title = title
        type = UIActivityType(rawValue: title)
    }

    override var activityType: UIActivityType {
        return self.type
    }

    override var activityTitle: String {
        return self.title
    }

    override var activityImage: UIImage? {
        return self.image
    }

    var activityCategory: UIActivityCategory {
        return .share
    }

    override func canPerform(withActivityItems activityItems: [Any]) -> Bool {
        return true
    }

    override func prepare(withActivityItems activityItems: [Any]) {

    }

    override func perform() {

    }

}

class func getTelegramActivitiesFor(path: String) -> [YourCustomActivity] {
    // You have to supply your own "Telegram_Logo"
    return [YourCustomActivity(title: "Telegram", image: UIImage.init(named: "Telegram_Logo", in: Bundle.main, compatibleWith: nil), path: path)]
}

3）用电报活动实例化您的

UIActivityController

let yourSongPath = "" // Get path to your song in documents

let activities = YourCustomActivity.getTelegramActivitiesFor(path: yourSongPath)

let activityVC = UIActivityViewController(activityItems: activityImages, applicationActivities: activities)
activityVC.modalPresentationStyle = .popover
activityVC.popoverPresentationController?.barButtonItem = actionButton
present(activityVC, animated: true, completion: nil)

4）当选择

YourCustomActivity

时，它将执行其

perform（）

方法。在这里，您可以获取歌曲路径的数据，并拨打电话将其发送到