Youtube Android API-callingAppVersion不能为null或为空

Question

因此，在我的片段中，我放入了以下代码来处理listview 的onclickitem

ls.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    ChannelItem c = (ChannelItem) parent.getAdapter().getItem(position);
                    Intent myIntent = new Intent(getActivity().getBaseContext(), PlayerViewActivity.class);
                    myIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    getActivity().getBaseContext().startActivity(myIntent);
                }
            });

我知道这不是最干净的代码，我正计划重新格式化它。但它暂时有效（在使用YoutubeBaseActivity之前，我用测试活动对它进行了测试）。只是为了澄清这段代码中没有问题，但它是为了说明我所遵循的流程。

因此，当youtube活动开始时，它会执行以下类

public class PlayerViewActivity extends YouTubeBaseActivity implements
        YouTubePlayer.OnInitializedListener {
    static private final String VIDEO = "4SK0cUNMnMM";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.youtube_player);
        YouTubePlayerView youTubeView = (YouTubePlayerView)
                findViewById(R.id.youtube_view);
        youTubeView.initialize(Api.DEV_KEY, this);
    }
    @Override
    public void onInitializationFailure(YouTubePlayer.Provider provider,
                                        YouTubeInitializationResult error) {
        Toast.makeText(this, "Oh no! "+error.toString(),
                Toast.LENGTH_LONG).show();
    }
    @Override
    public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player,
                                        boolean wasRestored) {
        player.loadVideo(VIDEO);
    }
}

在这里找不到任何帮助

youTubeView.initialize(Api.DEV_KEY, this);

这行代码一次又一次地抛出相同的错误

  Caused by: java.lang.IllegalArgumentException: callingAppVersion cannot be null or empty
            at com.google.android.youtube.player.internal.ac.a(Unknown Source)
            at com.google.android.youtube.player.internal.o.<init>(Unknown Source)
            at com.google.android.youtube.player.internal.ad.a(Unknown Source)
            at com.google.android.youtube.player.YouTubePlayerView.a(Unknown Source)
            at com.google.android.youtube.player.YouTubeBaseActivity$a.a(Unknown Source)
            at com.google.android.youtube.player.YouTubePlayerView.initialize(Unknown Source)
            at view.PlayerViewActivity.onCreate(PlayerViewActivity.java:44)
            at android.app.Activity.performCreate(Activity.java:5104)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
            ... 11 more

有人能帮我吗？

Answer 1

您需要将应用程序的版本代码和版本名称添加到Manifest文件中，例如：

android:versionCode="1"
android:versionName="1.0"