Question

我正在调整Google Cast代码，即here提供的代码。

我已完成整个工作空间设置，但是，当尝试在Android手机上运行示例应用时，我收到以下错误。

我刚刚将包名称指定为应用ID。我在哪里可以获得应用ID？我应该向Google注册以获取应用ID吗？它是如何工作的？

02-13 23:36:00.995: E/AndroidRuntime(8310): FATAL EXCEPTION: main
02-13 23:36:00.995: E/AndroidRuntime(8310): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.google.sample.cast.refplayer/com.google.sample.cast.refplayer.VideoBrowserActivity}: java.lang.IllegalArgumentException: Invalid appliation ID: com.google.sample.cast.refplayer
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1967)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.app.ActivityThread.access$600(ActivityThread.java:127)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.os.Looper.loop(Looper.java:137)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.app.ActivityThread.main(ActivityThread.java:4511)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at java.lang.reflect.Method.invokeNative(Native Method)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at java.lang.reflect.Method.invoke(Method.java:511)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:980)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at dalvik.system.NativeStart.main(Native Method)
02-13 23:36:00.995: E/AndroidRuntime(8310): Caused by: java.lang.IllegalArgumentException: Invalid appliation ID: 
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.google.android.gms.cast.CastMediaControlIntent.a(Unknown Source)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.google.android.gms.cast.CastMediaControlIntent.categoryForCast(Unknown Source)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.google.sample.castcompanionlibrary.cast.BaseCastManager.<init>(BaseCastManager.java:183)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.google.sample.castcompanionlibrary.cast.VideoCastManager.<init>(VideoCastManager.java:215)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.google.sample.castcompanionlibrary.cast.VideoCastManager.initialize(VideoCastManager.java:168)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.google.sample.cast.refplayer.CastApplication.getCastManager(CastApplication.java:51)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at com.google.sample.cast.refplayer.VideoBrowserActivity.onCreate(VideoBrowserActivity.java:55)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.app.Activity.performCreate(Activity.java:4470)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1052)
02-13 23:36:00.995: E/AndroidRuntime(8310):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931)
02-13 23:36:00.995: E/AndroidRuntime(8310):     ... 11 more
02-13 23:36:01.115: D/dalvikvm(8310): GC_CONCURRENT freed 168K, 3% free 13426K/13831K, paused 7ms+7ms
02-13 23:36:01.305: I/Process(8310): Sending signal. PID: 8310 SIG: 9

Answer 1

最好的方法是创建自己的接收器（Styled Media Receiver）。当您注册时，您会获得一个应用ID;我建议您访问Cast developers网站，熟悉Chromecast及其工作原理。获得应用程序ID后，您需要将其插入res / values / string.xml，其中YOUR_APP_ID字符串为。

Answer 2

删除引号：

- CastMediaControlIntent.categoryForCast("CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID")
+ CastMediaControlIntent.categoryForCast(CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID)

Answer 3

如果使用默认媒体接收器，则不必注册应用程序。检查此Changelog页。

您可以在CastOptionsProvider中添加默认的应用程序ID，如下所示：

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link
      rel="stylesheet"
      href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
      integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T"
      crossorigin="anonymous"
    /link> <script
    src="https://code.jquery.com/jquery-3.5.1.js"
    integrity="sha256-QWo7LDvxbWT2tbbQ97B53yJnYU3WhH/C8ycbRAkjPDc="
    crossorigin="anonymous"></script>
    <title>ReqRes</title>
  </head>
  <body>
    <div class="container my-5">
      <div class="text-center">
        <h1 class="display-4 text-center mb-3 h1 font-weight-bold">Assignment</h1>
        <button class="btn btn-primary my-3" id="get">GET</button>
        <button class="btn btn-info" id="post">POST</button>
        <button class="btn btn-warning" id="update">PUT</button>
        <button class="btn btn-danger" id="delete">DELETE</button>
      </div>
      <hr>
      <div id="res"></div>
    </div>
    <script src="https://code.jquery.com/jquery-3.5.1.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.19.0/axios.min.js"></script>
    <script src="start.js"></script>
  </body>
</html>

无效的应用程序ID - chromecast

3 个答案: