接受本地网络权限后，Google Cast iOS SDK按钮消失 [英] Google Cast iOS SDK button disappear after accepting Local Network Permission

问题描述

我正在尝试实施CAST SDK.我的意图和我做了以下事情:

1. 投射/镜像我的应用程序屏幕.我不想播放任何视频，而只是将应用程序屏幕投射到更大的电视/屏幕上.我了解Airplay，请立即在Google SDK上进行讨论.
2. 我用5美元购买了Google Cast开发人员控制台，并在其中创建了一个applicationID.
3. 我已经集成了SDK，并实现了CAST按钮，并在Plist和应用程序功能中设置了iOS 14的所有更改.
4. 我已更改所有这些内容，并发现所有有关权限的警报:

   相关问题在这里:

   1. https://github.com/googlecast/CastVideos-ios/issues/98
   2. https://issuetracker.google.com/issues/178424585

   有人可以帮助我吗?预先感谢.

   解决方案

   我最好的选择是

5. 将NSBonjourServices添加到您的Info.plist中(确保从
6. 将NSLocalNetworkUsageDescription添加到您的Info.plist

 < key> NSLocalNetworkUsageDescription</key>< string> $ {PRODUCT_NAME}使用本地网络在WiFi上发现支持Cast的设备</string>网络. 

I was trying to implement CAST SDK. My intension and i have done the following things :

1. Casting/Mirroring my app screen. I don't want to play any video , just screen casting of my app to larger TV/screen. I know about Airplay, please discuss on Google SDK now.
2. I have bought Google Cast Developer Console with 5USD and created an applicationID there.
3. I have integrated SDK and implement CAST button, set up all changes for iOS 14 in Plist and app capabilities.
4. I have changed all these and found all alert of permission as well : https://developers.google.com/cast/docs/ios_sender/ios_permissions_changes

The problem i am facing now :

1. On first launch, app shows the cast button , i click on that, SDK displays permission alert/pop up, i accept all.
2. After accepting permission , the cast button disappears and never seen to the app even i re-run the app.
3. In the delegate method, i see a log : chromecast Message from Chromecast = Invalid network address

My queries is :

1. Why the cast button disappears and never seen to the app , any solution ?
2. Is it possible to share/mirroring the app screen rather playing videos using iOS CAST SDK ?
3. To share screen , do i need to use any other class/API from SDK ? I see no good example on this, seems poor support from the team.

My code is simple here like :

 // Appdelegate 
 class AppDelegate: UIResponder, UIApplicationDelegate, GCKLoggerDelegate {

let kReceiverAppID = kGCKDefaultMediaReceiverApplicationID
let kDebugLoggingEnabled = true
private let appId = "EF819***"

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    
 
    
    let discoveryCriteria = GCKDiscoveryCriteria(applicationID: appId)
    let castOptions = GCKCastOptions(discoveryCriteria: discoveryCriteria)
    GCKCastContext.setSharedInstanceWith(castOptions)
    GCKLogger.sharedInstance().delegate = self

    return true
}

     func logMessage(_ message: String, at level: GCKLoggerLevel, fromFunction function: String, location: String) {
    //  print("Message from Chromecast = \(message)")
}

// In ViewController , imported CASTSDK

  override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.
    let castButton = GCKUICastButton(frame: CGRect(x: 0, y: 0, width: 24, height: 24))
    castButton.tintColor = UIColor.gray
    navigationItem.rightBarButtonItem = UIBarButtonItem(customView: castButton)
    self.view.backgroundColor = .white
}

The app settings is :

Related problem is here :

1. https://github.com/googlecast/CastVideos-ios/issues/98
2. https://issuetracker.google.com/issues/178424585

Anyone can help me on this ? Thanks in advance.

解决方案

My best bet would be that either number 2 or 3 from the upgrade docs are malformed.

2. Add NSBonjourServices to your Info.plist (make sure you have an underscore(_) before your appId/receiverID from here

<key>NSBonjourServices</key>
<array>
  <string>_googlecast._tcp</string>
  <string>_ABCD1234._googlecast._tcp</string>
</array>

3. Add NSLocalNetworkUsageDescription to your Info.plist

<key>NSLocalNetworkUsageDescription</key>
<string>${PRODUCT_NAME} uses the local network to discover Cast-enabled devices on your WiFi
network.</string>

这篇关于接受本地网络权限后，Google Cast iOS SDK按钮消失的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！