Errore durante il gonfiaggio della classe com.google.android.youtube.player.YouTubePlayerView

Question

ho difficoltà a iniziare con l'API Android di YouTube.
Ho un ActionBarActivity che ha un v4.ViewPager e volevo inserire più YouTubePlayerSupportFragment all'interno.
Ottengo Error inflating class com.google.android.youtube.player.YouTubePlayerView, il mio suggerimento è che qualcosa nella catena ereditaria è sbagliato, ma non so cosa.

Il mio codice finora: XML:

<FrameLayout android:layout_width="match_parent" 
android:layout_height="match_parent" > 

<com.google.android.youtube.player.YouTubePlayerView 
    android:id="@+id/youtube_player" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:background="#fff" 
    android:padding="5dp" /> </FrameLayout> 

Java:

public class MyYoutubeFragment extends YouTubePlayerSupportFragment { 

private static final String API_KEY = ""; 

private String videoId = "qNggvk8QtaY"; 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    // Inflate the layout for this fragment 
    View view = inflater.inflate(R.layout.fragment_youtube, container, false); 

    YouTubePlayerView youTubePlayerView = (YouTubePlayerView) view.findViewById(R.id.youtube_player); 
    youTubePlayerView.initialize(API_KEY, this); 

    return view; 
} 

@Override 
public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult result) { 
    Toast.makeText(getActivity(), "Failured to Initialize!", Toast.LENGTH_LONG).show(); 
} 

@Override 
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player, boolean wasRestored) { 
    player.setPlayerStateChangeListener(playerStateChangeListener); 
    player.setPlaybackEventListener(playbackEventListener); 

    if (!wasRestored) { 
     player.cueVideo(videoId); 
    } 
} 

}

LogCat:

android.view.InflateException: Binary XML file line #6: Error inflating class com.google.android.youtube.player.YouTubePlayerView 
     at android.view.LayoutInflater.createView(LayoutInflater.java:633) 
     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743) 
     at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:504) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
     at app.com.example.martinhatzung.movieapp.fragments.MyYoutubeFragment.onCreateView(MyYoutubeFragment.java:54) 
     at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786) 
     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947) 
     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1126) 
     at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:739) 
     at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1489) 
     at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:486) 
     at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141) 
     at android.support.v4.view.ViewPager.populate(ViewPager.java:1073) 
     at android.support.v4.view.ViewPager.populate(ViewPager.java:919) 
     at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441) 
     at android.view.View.measure(View.java:17430) 
     at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:727) 
     at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:463) 
     at android.view.View.measure(View.java:17430) 
     at android.widget.ScrollView.measureChildWithMargins(ScrollView.java:1260) 
     at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) 
     at android.widget.ScrollView.onMeasure(ScrollView.java:337) 
     at android.view.View.measure(View.java:17430) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463) 
     at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) 
     at android.view.View.measure(View.java:17430) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463) 
     at android.support.v7.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:453) 
     at android.view.View.measure(View.java:17430) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463) 
     at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) 
     at android.view.View.measure(View.java:17430) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463) 
     at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436) 
     at android.widget.LinearLayout.measureVertical(LinearLayout.java:722) 
     at android.widget.LinearLayout.onMeasure(LinearLayout.java:613) 
     at android.view.View.measure(View.java:17430) 
     at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463) 
     at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) 
     at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2560) 
     at android.view.View.measure(View.java:17430) 
     at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2001) 
     at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1166) 
     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1372) 
     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054) 
     at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5786) 
     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) 
     at android.view.Choreographer.doCallbacks(Choreographer.java:580) 
     at android.view.Choreographer.doFrame(Choreographer.java:550) 
     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) 
     at android.os.Handler.handleCallback(Handler.java:739) 
     at android.os.Handler.dispatchMessage(Handler.java:95) 
     at android.os.Looper.loop(Looper.java:135) 
     at android.app.ActivityThread.main(ActivityThread.java:5221) 
     at java.lang.reflect.Method.invoke(Nat 

Answer 1

cambiare classe come questo. Inoltre, non dimenticare di usare vero api_key, nel codice il suo solo una stringa vuota

public class MyYoutubeFragment extends YouTubePlayerSupportFragment { 
private static final String API_KEY = ""; 
private String videoId = "qNggvk8QtaY"; 

public static MyYoutubeFragment newInstance() 
{ 
    MyYoutubeFragment playerYouTubeFrag = new MyYoutubeFragment(); 

    playerYouTubeFrag.initialize(API_KEY, this); 
    return playerYouTubeFrag; 
} 

@Override 
public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult result) { 
    Toast.makeText(getActivity(), "Failured to Initialize!", Toast.LENGTH_LONG).show(); 
} 

@Override 
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player, boolean wasRestored) { 
    player.setPlayerStateChangeListener(playerStateChangeListener); 
    player.setPlaybackEventListener(playbackEventListener); 

    if (!wasRestored) { 
     player.cueVideo(videoId); 
    } 
} 
} 

anche caricare questo come di seguito

fragmentManager.beginTransaction() 
      .add(R.id.video_view, MyYoutubeFragment.newInstance()) 
      .commit();