iOS Swift m3u8 后台播放不工作

Question

我尝试在按下 HOME 键并从前台返回后后台播放 .m3u8。

按下后退按钮时停止。请任何帮助。

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.

        var audioSession = AVAudioSession.sharedInstance()
        audioSession.setCategory(AVAudioSessionCategoryPlayback, error: nil)
        audioSession.setActive(true, error: nil)

        return true
    }

    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.


    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.



    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.


    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.

    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.


    }


}

ViewController:

class ViewController: UIViewController {

    var myMoviePlayerView : MPMoviePlayerViewController!

    override func viewDidLoad() {
        super.viewDidLoad()


        let myButton = UIButton()
        myButton.frame.size = CGSize(width: 100, height: 40)
        myButton.layer.position = CGPoint(x: self.view.bounds.width/2, y: self.view.bounds.height/2)
        myButton.layer.masksToBounds = true
        myButton.layer.cornerRadius = 20.0
        myButton.backgroundColor = UIColor.orangeColor()
        myButton.setTitle("Play", forState: .Normal)
        myButton.setTitleColor(UIColor.whiteColor(), forState: .Normal)
        myButton.setTitleShadowColor(UIColor.grayColor(), forState: .Normal)
        myButton.addTarget(self, action: "onClickMyButton:", forControlEvents: .TouchUpInside)
        self.view.addSubview(myButton)

    }



    func onClickMyButton(sender: UIButton) {


        let url = NSURL(string :"http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8")

        myMoviePlayerView = MPMoviePlayerViewController(contentURL: url)

        myMoviePlayerView.moviePlayer.movieSourceType = .Streaming

        NSNotificationCenter.defaultCenter().addObserver(self, selector: "moviePlayBackDidFinish:",
            name: MPMoviePlayerPlaybackDidFinishNotification,
            object: myMoviePlayerView.moviePlayer)

        self.presentViewController(myMoviePlayerView, animated: true, completion: nil)
    }

    func moviePlayBackDidFinish(notification: NSNotification) {
        println("moviePlayBackDidFinish:")

        NSNotificationCenter.defaultCenter().removeObserver(self, name: MPMoviePlayerPlaybackDidFinishNotification, object: nil)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

info.plist

<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>**********************************</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>UIBackgroundModes</key>
<array>
    <string>audio</string>
</array>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIMainStoryboardFile</key>
<string>Main</string>
<key>UIRequiredDeviceCapabilities</key>
<array>
    <string>armv7</string>
</array>
<key>UISupportedInterfaceOrientations</key>
<array>
    <string>UIInterfaceOrientationPortrait</string>
    <string>UIInterfaceOrientationLandscapeLeft</string>
    <string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UISupportedInterfaceOrientations~ipad</key>
<array>
    <string>UIInterfaceOrientationPortrait</string>
    <string>UIInterfaceOrientationPortraitUpsideDown</string>
    <string>UIInterfaceOrientationLandscapeLeft</string>
    <string>UIInterfaceOrientationLandscapeRight</string>
</array>

Answer 1

我认为您正在使用 MPMoviePlayerViewController 播放音频，这就是出现问题的原因。

在属性列表 (.plist) 文件中添加一个名为 Required background modes 的键..

如下图..

并在 AppDelegate 中添加这一行 audioSession

UIApplication.sharedApplication().beginReceivingRemoteControlEvents()

你能从this

那里得到更多帮助吗

iOS Swift m3u8 后台播放不工作

iOS Swift m3u8 background play doesn't work

background

mpmovieplayercontroller

ios

swift