我查看了其他线程，但没有找到解决方案，除了最初检测到的API 21，即Lollipop。虽然，我在Lollipop以及Lollipop后版本中都面临着这个问题。
我正在使用YouTube Data API，以在我的应用中显示特定频道的内容。我成功地从API获取响应并在RecyclerView中显示内容。
但是当我尝试在YouTubeSupportFragment中加载视频时，应用程序在调用cueVideo() YouTubeSupportFragment时崩溃，但有以下异常。
注意：我使用的是YouTube API的最新版本（1.2.2）。
以下是YouTube Player抛出的异常：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.acme.youtubeplayer, PID: 16757
java.lang.IllegalArgumentException: Service Intent must be explicit: Intent { act=com.google.android.youtube.api.service.START }
at android.app.ContextImpl.validateServiceIntent(ContextImpl.java:2101)
at android.app.ContextImpl.bindServiceCommon(ContextImpl.java:2225)
at android.app.ContextImpl.bindService(ContextImpl.java:2203)
at android.content.ContextWrapper.bindService(ContextWrapper.java:560)
at com.google.android.youtube.player.internal.r.e(Unknown Source)
at com.google.android.youtube.player.YouTubePlayerView.a(Unknown Source)
at com.google.android.youtube.player.YouTubePlayerSupportFragment.a(Unknown Source)
at com.google.android.youtube.player.YouTubePlayerSupportFragment.onCreateView(Unknown Source)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:2192)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1299)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1528)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1595)
at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:758)
at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2363)
at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2149)
at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2103)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2013)
at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:710)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:7007)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199)
这是我的 ListFragment.java ，应用程序崩溃了：
public class ListFragment extends android.support.v4.app.Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private static final String KEY_TRANSITION_EFFECT = "transition_effect";
private static final int RECOVERY_REQUEST = 1;
private int mCurrentTransitionEffect = JazzyHelper.HELIX;
private JazzyRecyclerViewScrollListener jazzyScrollListener;
YouTubePlayerView youtube_player;
MyPlayerStateChangeListener playerStateChangeListener;
MyPlaybackEventListener playbackEventListener;
YouTubePlayer playerFragment;
JSONObject jObjectAPI;
JSONArray jArrayResponse;
int listSize;
JSONObject jObjectResponse, jObject;
public static final String YOUTUBE_API = "https://www.googleapis.com/youtube/v3/search?key=" + Config.YOUTUBE_API_KEY + "&channelId=" + Config.YOUTUBE_CHANNEL_ID + "&part=snippet,id&order=date&maxResults=20";
//Local Variables
RecyclerView recyclerView;
Button seekToButton;
YouTubePlayerSupportFragment youTubePlayerFragment;
String[] thumbnailVideo;
String[] titleVideo;
String[] descriptionVideo;
String[] idVideo;
int itemLayoutRes = R.layout.item;
boolean isStaggered = false;
private OnFragmentInteractionListener mListener;
private ProgressDialog pDialog;
public ListFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment ListFragment.
*/
// TODO: Rename and change types and number of parameters
public static ListFragment newInstance(String param1, String param2) {
ListFragment fragment = new ListFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_list, container, false);
// Inflate the layout for this fragment
recyclerView = (RecyclerView) view.findViewById(R.id.rv_video_list);
recyclerView.setLayoutManager(createLayoutManager(itemLayoutRes, isStaggered));
recyclerView.setHasFixedSize(false);
new GetList().execute();
return view;
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
private RecyclerView.LayoutManager createLayoutManager(int itemLayoutRes, boolean isStaggered) {
if (itemLayoutRes == R.layout.item) {
return new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false);
} else {
if (isStaggered) {
return new StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL);
} else {
return new GridLayoutManager(getActivity(), 1);
}
}
}
private void setupJazziness(int effect) {
mCurrentTransitionEffect = effect;
jazzyScrollListener.setTransitionEffect(mCurrentTransitionEffect);
}
private void showMessage(String message) {
Toast.makeText(getActivity(), message, Toast.LENGTH_LONG).show();
}
public final class MyPlaybackEventListener implements YouTubePlayer.PlaybackEventListener {
@Override
public void onPlaying() {
// Called when playback starts, either due to user action or call to play().
showMessage("Playing");
}
@Override
public void onPaused() {
// Called when playback is paused, either due to user action or call to pause().
showMessage("Paused");
}
@Override
public void onStopped() {
// Called when playback stops for a reason other than being paused.
showMessage("Stopped");
}
@Override
public void onBuffering(boolean b) {
// Called when buffering starts or ends.
}
@Override
public void onSeekTo(int i) {
// Called when a jump in playback position occurs, either
// due to user scrubbing or call to seekRelativeMillis() or seekToMillis()
}
}
public final class MyPlayerStateChangeListener implements YouTubePlayer.PlayerStateChangeListener {
@Override
public void onLoading() {
// Called when the youtube_player is loading a video
// At this point, it's not ready to accept commands affecting playback such as play() or pause()
playerFragment.loadVideo(idVideo.toString());
}
@Override
public void onLoaded(String s) {
// Called when a video is done loading.
// Playback methods such as play(), pause() or seekToMillis(int) may be called after this callback.
playerFragment.play();
}
@Override
public void onAdStarted() {
// Called when playback of an advertisement starts.
playerFragment.pause();
}
@Override
public void onVideoStarted() {
// Called when playback of the video starts.
}
@Override
public void onVideoEnded() {
// Called when the video reaches its end.
if (playerFragment.hasNext()) {
playerFragment.next();
}
}
@Override
public void onError(YouTubePlayer.ErrorReason errorReason) {
// Called when an error occurs.
Toast.makeText(getActivity(), "Please check your Internet Connection", Toast.LENGTH_LONG).show();
}
}
public static JSONObject getJSONObjectFromURL(String urlString) throws IOException, JSONException {
HttpURLConnection urlConnection = null;
URL url = new URL(urlString);
urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setReadTimeout(10000 /* milliseconds */);
urlConnection.setConnectTimeout(15000 /* milliseconds */);
urlConnection.setDoOutput(true);
urlConnection.connect();
BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));
char[] buffer = new char[1024];
String jsonString;
StringBuilder sb = new StringBuilder();
String line;
while ((line = br.readLine()) != null) {
sb.append(line + "\n");
}
br.close();
jsonString = sb.toString();
System.out.println("JSON: " + jsonString);
return new JSONObject(jsonString);
}
private class GetList extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Please wait...");
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... params) {
try {
jObjectAPI = getJSONObjectFromURL(YOUTUBE_API);
Log.e("response", String.valueOf(jObjectAPI));
jArrayResponse = jObjectAPI.getJSONArray("items");
Log.e("array", String.valueOf(jArrayResponse));
listSize = jArrayResponse.length();
thumbnailVideo = new String[listSize];
titleVideo = new String[listSize];
descriptionVideo = new String[listSize];
idVideo = new String[listSize];
for (int i = 0; i < listSize; i++) {
jObjectResponse = jArrayResponse.getJSONObject(i);
thumbnailVideo[i] = jObjectResponse.getJSONObject("snippet").getJSONObject("thumbnails")
.getJSONObject("default")
.optString("url");
titleVideo[i] = jObjectResponse.getJSONObject("snippet").optString("title");
if (!(jObjectResponse.getJSONObject("snippet").optString("description").equals(""))
&& !(jObjectResponse.getJSONObject("snippet").optString("description").equals(null))
&& (jObjectResponse.getJSONObject("snippet").optString("description").length() > 0)) {
descriptionVideo[i] = jObjectResponse.getJSONObject("snippet").optString("description");
} else {
descriptionVideo[i] = "No Description Found";
}
idVideo[i] = jObjectResponse.getJSONObject("id").optString("videoId");
}
} catch (JSONException e) {
e.printStackTrace();
Log.e("JSON Exception", e.toString());
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
/**
* Updating parsed JSON data into ListView
**/
recyclerView.setAdapter(new VideoListAdapter(thumbnailVideo, titleVideo, descriptionVideo, idVideo, itemLayoutRes, getActivity()));
jazzyScrollListener = new JazzyRecyclerViewScrollListener();
recyclerView.setOnScrollListener(jazzyScrollListener);
setupJazziness(R.anim.slide_left_in);
playerStateChangeListener = new MyPlayerStateChangeListener();
playbackEventListener = new MyPlaybackEventListener();
youTubePlayerFragment = new YouTubePlayerSupportFragment();
youTubePlayerFragment.initialize(Config.YOUTUBE_API_KEY, new YouTubePlayer.OnInitializedListener() {
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player, boolean wasRestored) {
playerFragment = player;
player.setPlayerStateChangeListener(playerStateChangeListener);
player.setPlaybackEventListener(playbackEventListener);
if (!wasRestored) {
player.cueVideos(Arrays.asList(idVideo));
}
}
@Override
public void onInitializationFailure(YouTubePlayer.Provider arg0, YouTubeInitializationResult errorReason) {
// TODO Auto-generated method stub
if (errorReason.isUserRecoverableError()) {
errorReason.getErrorDialog(getActivity(), RECOVERY_REQUEST).show();
} else {
String error = String.format(getString(R.string.player_error), errorReason.toString());
Toast.makeText(getActivity(), error, Toast.LENGTH_LONG).show();
}
}
});
android.support.v4.app.FragmentManager fmPlayer = getFragmentManager();
FragmentTransaction transaction = fmPlayer.beginTransaction();
transaction.replace(R.id.youtube_player_view, youTubePlayerFragment);
transaction.commit();
}
}
}
这是我的适配器类：
public class VideoListAdapter extends Adapter<VideoListAdapter.VideoListViewHolder> {
private List<String> thumbnail;
private List<String> title;
private List<String> desc;
private List<String> id;
private int itemLayoutRes;
private static Activity mContext;
public VideoListAdapter(String[] videoThumbnail, String[] videoTitle, String[] videoDesc, String[] videoId, int itemLayoutRes, Activity context) {
this.thumbnail = Arrays.asList(videoThumbnail);
this.title = Arrays.asList(videoTitle);
this.desc = Arrays.asList(videoDesc);
this.id = Arrays.asList(videoId);
this.itemLayoutRes = itemLayoutRes;
this.mContext = context;
}
@Override
public VideoListAdapter.VideoListViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View view;
view = inflater.inflate(itemLayoutRes, parent, false);
return new VideoListViewHolder(view);
}
@Override
public void onBindViewHolder(final VideoListViewHolder holder, final int position) {
Picasso.with(mContext).load(thumbnail.get(position)).into(new Target() {
@Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
// loaded bitmap is here (bitmap)
holder.thumbnailVideo.setImageBitmap(bitmap);
}
@Override
public void onBitmapFailed(Drawable errorDrawable) {
Toast.makeText(mContext, "Image load failed", Toast.LENGTH_LONG).show();
}
@Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
});
Log.e("thumbnail Adapter", String.valueOf(thumbnail.get(position)));
holder.titleVideo.setText(title.get(position));
holder.descVideo.setText(desc.get(position));
holder.idVideo = id.get(position);
}
@Override
public int getItemCount() {
return title.size();
}
@Override
public int getItemViewType(int position) {
// return isStaggered ? position % 2 : 0;
return position;
}
public static class VideoListViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
final TextView titleVideo, descVideo;
final YouTubeThumbnailView thumbnailVideo;
String idVideo;
public VideoListViewHolder(View view) {
super(view);
thumbnailVideo = (YouTubeThumbnailView) view.findViewById(R.id.thumbnail_video);
titleVideo = (TextView) view.findViewById(R.id.title_video);
descVideo = (TextView) view.findViewById(R.id.desc_video);
}
@Override
public void onClick(View v) {
Intent intent = new Intent(mContext, YouTubeBaseActivity.class);
//Intent intent = YouTubeStandalonePlayer.createVideoIntent((Activity) v.getContext(), Config.YOUTUBE_API_KEY, idVideo);
v.getContext().startActivity(intent);
}
}
}
答案 0 :(得分：0)
最后我摆脱了这个问题。我将YouTubeSupportFragment替换为YouTubeBaseActivity并使用YouTubePlayerView播放视频。
换句话说，我使用Activity扩展YouTubeBaseActivity来播放视频而不是Fragment。
希望它可以帮助某人解决问题。