我正在使用Youtube Data API来访问视频。我成功地在ListView上显示缩略图图像。当我启动应用程序时，单击列表项之一，它在视频应该播放的容器上加载。我有问题，当我点击下一个缩略图，然后下一个视频没有显示。我检查登录索引，位置已更改但视频未加载。我不知道我在哪里做错了？< / p>
这与我的问题相同，但无法解决此问题How to refresh Youtube Player View onItemClickListener() in a ListView
FragmentVideoDestination
public class FragmentVideoDestination extends Fragment {
private FragmentActivity myContext;
YouTubePlayer YPlayer;
private static final String YoutubeDeveloperKey = "AIzaSyCLk_SWbZseee8lpSEb6rLTSvhL8YSLjEE";
String Navigation_URL_Popular_Destination_video = "http://192.168.100.7:1337/api/popular_destinations";
HorizontalListView horizontalListView;
FrameLayout framelayoutvideo;
String video_Id;
String thumbnail_image;
String[] youtube_video_url;
String parsed_url;
ArrayList<ClassDestinationFragmentYoutubeVideo> destination_list_grid_vieo = new ArrayList<>();
@Override
public void onAttach(Activity activity) {
if (activity instanceof FragmentActivity) {
myContext = (FragmentActivity) activity;
}
super.onAttach(activity);
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.destination_grid_detail_video, container, false);
// YouTubePlayerSupportFragment youTubePlayerFragment = YouTubePlayerSupportFragment.newInstance();
// FragmentTransaction transaction = getFragmentManager().beginTransaction();
// transaction.replace(R.id.youtubeFragment, youTubePlayerFragment).commit();
//youTubePlayerFragment = (YouTubePlayerSupportFragment) getSupport().findFragmentById(R.id.youtubeFragment);
////
horizontalListView = (HorizontalListView) view.findViewById(R.id.horizontal_scroll_list_item);
framelayoutvideo = (FrameLayout) view.findViewById(R.id.youtubeFragment);
final YouTubePlayerSupportFragment youTubePlayerFragment = new YouTubePlayerSupportFragment();
FragmentManager fragmentManager = getChildFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.relative_layout_destination_video, youTubePlayerFragment);
fragmentTransaction.commit();
makeJsonPopularDestinationDetailPageVideo();
horizontalListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
video_Id = destination_list_grid_vieo.get(position).getUrl();
System.out.println("position" + destination_list_grid_vieo.get(position).getUrl());
if (YPlayer != null) {
//YPlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.DEFAULT);
YPlayer.loadVideo(video_Id);
//YPlayer.play();
}
}
});
youTubePlayerFragment.initialize(YoutubeDeveloperKey, new OnInitializedListener() {
@Override
public void onInitializationSuccess(Provider provider, YouTubePlayer youTubePlayer, boolean b) {
//youTubePlayer.setShowFullscreenButton(false);
if (youTubePlayer != null) {
if (!b) {
// System.out.println("POsition" + destination_list_grid_vieo.get(0).getUrl());
//youTubePlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.DEFAULT);
youTubePlayer.loadVideo(destination_list_grid_vieo.get(0).getUrl());
// youTubePlayer.loadVideo("Hc97uvxJTNQ");
YPlayer = youTubePlayer;
// youTubePlayer.play();
}
}
}
@Override
public void onInitializationFailure(Provider arg0, YouTubeInitializationResult arg1) {
String errorMessage = arg1.toString();
Toast.makeText(getContext(), errorMessage, Toast.LENGTH_LONG).show();
Log.d("errorMessage:", errorMessage);
}
});
/*
horizontalListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, final int position, long id) {
System.out.println("position" + destination_list_grid_vieo.get(position).getUrl());
video_Id = destination_list_grid_vieo.get(position).getUrl();
// Picasso.with(getContext()).load(destination_list_grid.get(position).getOther_images()).into(imageViewPager);
youTubePlayerFragment.initialize(YoutubeDeveloperKey, new OnInitializedListener() {
@Override
public void onInitializationSuccess(Provider provider, YouTubePlayer youTubePlayer, boolean b) {
youTubePlayer.setShowFullscreenButton(false);
if (!b) {
youTubePlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.DEFAULT);
youTubePlayer.cueVideo(video_Id); // youTubePlayer.play();
YPlayer = youTubePlayer;
}
}
@Override
public void onInitializationFailure(Provider arg0, YouTubeInitializationResult arg1) {
}
});
}
}); */
return view;
}
private void makeJsonPopularDestinationDetailPageVideo() {
RequestQueue requestQueue = Volley.newRequestQueue(getContext());
String URL1 = Navigation_URL_Popular_Destination_video + "/1";
StringRequest stringRequest = new StringRequest(Request.Method.GET, URL1,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
//
JSONObject jsonObject = new JSONObject(response);
JSONArray jArray = new JSONArray();
jArray = jsonObject.getJSONArray("videos");
for (int i = 0; i < jArray.length(); i++) {
JSONObject jsonObjectinner = jArray.getJSONObject(i);
thumbnail_image = jsonObjectinner.getString("thumbnail");
// youtube_video_url = jsonObjectinner.getString("url").substring(32, 43);
youtube_video_url = String.valueOf(jsonObjectinner.getString("url")).split("=");
parsed_url = youtube_video_url[1];
destination_list_grid_vieo.add(new ClassDestinationFragmentYoutubeVideo(thumbnail_image, parsed_url));
System.out.println("Destination list" + destination_list_grid_vieo.get(i).getUrl());
}
PopularDestinationGridVideAdapter popularDestinationGridVideAdapter = new PopularDestinationGridVideAdapter(getContext(), destination_list_grid_vieo);
// popularDestinationGridVideAdapter.notifyDataSetChanged();
System.out.println("Grid" + destination_list_grid_vieo);
horizontalListView.setAdapter(popularDestinationGridVideAdapter);
} catch (JSONException e) {
Toast.makeText(getContext(), "Fetch failed!", Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getContext(), error.toString(), LENGTH_LONG).show();
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<String, String>();
// headers.put("Authorization", "Bearer " + access_token);
headers.put("Content-Type", "application/x-www-form-urlencoded");
return headers;
}
};
requestQueue.add(stringRequest);
}
@Override
public void onDestroy() {
super.onDestroy();
YPlayer = null;
}
}
PopularDestinationGridVideAdapter
public class PopularDestinationGridVideAdapter extends BaseAdapter {
Context mContext;
ArrayList<ClassDestinationFragmentYoutubeVideo> class_destination_youtube_video = null;
String TAG = "HomeTab_adapter";
public PopularDestinationGridVideAdapter(Context mContext, ArrayList<ClassDestinationFragmentYoutubeVideo> class_destination_youtube_video) {
super();
this.mContext = mContext;
this.class_destination_youtube_video = class_destination_youtube_video;
}
@Override
public int getCount() {
return class_destination_youtube_video.size();
}
@Override
public Object getItem(int position) {
return class_destination_youtube_video.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
final Holder viewHolder;
if (convertView == null) {
// inflate the layout
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// LayoutInflater inflater = LayoutInflater.from(parent.getContext());
convertView = inflater.inflate(R.layout.grid_pager_popular_destination_item, parent, false);
// well set up the ViewHolder
// viewHolder = new ClassScheduleStudentAdapter.Holder();
viewHolder = new Holder();
// viewHolder.popular_destintion_id = (TextView) convertView.findViewById(R.id.student_profile_subject);
viewHolder.view = (ImageView) convertView.findViewById(R.id.image_detail_page_item);
// Log.d(TAG, "@@ postion:" + position + " getTeacherName" + class_destination.get(position).getId());
convertView.setTag(viewHolder);
} else {
// we've just avoided calling findViewById() on resource everytime
// just use the viewHolder
// viewHolder = (ClassScheduleStudentAdapter.Holder) convertView.getTag();
viewHolder = (Holder) convertView.getTag();
}
// File f = new File(class_destination.get(position).getImagelogo());
// Picasso.with(mContext).load(f).into(viewHolder.image_logo);
Picasso.with(mContext).load(class_destination_youtube_video.get(position).getThumbnai()).error(R.drawable.close).into(viewHolder.view);
return convertView;
}
class Holder {
ImageView view;
}
}
登录
08-10 10:29:46.708 16772-16772/org.municipality.mobile.patanheritage E/AndroidRuntime: FATAL EXCEPTION: main
Process: org.municipality.mobile.patanheritage, PID: 16772
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.get(ArrayList.java:411)
at org.municipality.mobile.patanheritage.fragment.FragmentVideoDestination$2.onInitializationSuccess(FragmentVideoDestination.java:139)
at com.google.android.youtube.player.YouTubePlayerView.a(Unknown Source)
at com.google.android.youtube.player.YouTubePlayerView$1.a(Unknown Source)
at com.google.android.youtube.player.internal.r.g(Unknown Source)
at com.google.android.youtube.player.internal.r$c.a(Unknown Source)
at com.google.android.youtube.player.internal.r$b.a(Unknown Source)
at com.google.android.youtube.player.internal.r$a.handleMessage(Unknown Source)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
列表项目索引在日志中显示已更改，但运行视频未停止，并且在另一个列表项视频中被点击时启动新视频。如何解决此问题？
答案 0 :(得分：1)
每次点击列表项时，您都在初始化播放器。它应该只进行一次，你不必使用 youTubePlayer.play（）; 以下行将起作用 youTubePlayer.cueVideo（VIDEO_ID）;
答案 1 :(得分：0)
public class FragmentVideoDestination extends Fragment {
private FragmentActivity myContext;
YouTubePlayer YPlayer;
private static final String YoutubeDeveloperKey = "AIzaSyCLk_SWbZseee8lpSEb6rLTSvhL8YSLjEE";
String Navigation_URL_Popular_Destination_video = "http://192.168.100.7:1337/api/popular_destinations";
HorizontalListView horizontalListView;
FrameLayout framelayoutvideo;
String video_Id;
String thumbnail_image;
String[] youtube_video_url;
String parsed_url;
ArrayList<ClassDestinationFragmentYoutubeVideo> destination_list_grid_vieo = new ArrayList<>();
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.destination_grid_detail_video, container, false);
horizontalListView = (HorizontalListView) view.findViewById(R.id.horizontal_scroll_list_item);
framelayoutvideo = (FrameLayout) view.findViewById(R.id.youtubeFragment);
final YouTubePlayerSupportFragment youTubePlayerFragment = new YouTubePlayerSupportFragment();
FragmentManager fragmentManager = getChildFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.relative_layout_destination_video, youTubePlayerFragment);
fragmentTransaction.commit();
makeJsonPopularDestinationDetailPageVideo();
horizontalListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
video_Id = destination_list_grid_vieo.get(position).getUrl();
System.out.println("position" + destination_list_grid_vieo.get(position).getUrl());
if (YPlayer != null) {
YPlayer.cueVideo(video_Id); // youTubePlayer.play();
}
}
});
youTubePlayerFragment.initialize(YoutubeDeveloperKey, new OnInitializedListener() {
@Override
public void onInitializationSuccess(Provider provider, YouTubePlayer youTubePlayer, boolean b) {
if (!b) {
YPlayer= youTubePlayer;
if(video_Id!=null)
YPlayer.cueVideo(video_Id);
}
}
}
@Override
public void onInitializationFailure(Provider arg0, YouTubeInitializationResult arg1) {
}
});
return view;
}
@Override
public void onDestroy() {
super.onDestroy();
if (YPlayer!= null) {
YPlayer.release();
YPlayer = null;
}
}
private void makeJsonPopularDestinationDetailPageVideo() {
RequestQueue requestQueue = Volley.newRequestQueue(getContext());
String URL1 = Navigation_URL_Popular_Destination_video + "/1";
StringRequest stringRequest = new StringRequest(Request.Method.GET, URL1,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
//
JSONObject jsonObject = new JSONObject(response);
JSONArray jArray = new JSONArray();
jArray = jsonObject.getJSONArray("videos");
for (int i = 0; i < jArray.length(); i++) {
JSONObject jsonObjectinner = jArray.getJSONObject(i);
thumbnail_image = jsonObjectinner.getString("thumbnail");
// youtube_video_url = jsonObjectinner.getString("url").substring(32, 43);
youtube_video_url = String.valueOf(jsonObjectinner.getString("url")).split("=");
parsed_url = youtube_video_url[1];
destination_list_grid_vieo.add(new ClassDestinationFragmentYoutubeVideo(thumbnail_image, parsed_url));
System.out.println("Destination list" + destination_list_grid_vieo.get(i).getUrl());
}
PopularDestinationGridVideAdapter popularDestinationGridVideAdapter = new PopularDestinationGridVideAdapter(getContext(), destination_list_grid_vieo);
video_Id=destination_list_grid_vieo.get(0).getUrl();
if(YPlayer!=null){
YPlayer.cueVideo(video_Id);
}
// popularDestinationGridVideAdapter.notifyDataSetChanged();
System.out.println("Grid" + destination_list_grid_vieo);
horizontalListView.setAdapter(popularDestinationGridVideAdapter);
} catch (JSONException e) {
Toast.makeText(getContext(), "Fetch failed!", Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getContext(), error.toString(), LENGTH_LONG).show();
}
}) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<String, String>();
// headers.put("Authorization", "Bearer " + access_token);
headers.put("Content-Type", "application/x-www-form-urlencoded");
return headers;
}
};
requestQueue.add(stringRequest);
}
}
这可能对您有所帮助