This slider shows videos and pictures in the Cars fragment. This is what I want to do. video_template.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:name="com.google.android.youtube.player.YouTubePlayerSupportFragment"
android:id="@+id/youtubePlayerViewer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp"
android:background="@color/colorAccent"/>
</LinearLayout>
car_fragment.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.zeina.car.Cars">
<android.support.v7.widget.RecyclerView
android:id="@+id/List_of_videos_and_images"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="5dp"
/>
</LinearLayout>
Cars.java：
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import java.util.List;
public class Cars extends Fragment {
public boolean FragmentAdded =false;
public List<Fragment> fragments;
public VidOrImage a = new VidOrImage();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
filldata();
return inflater.inflate(R.layout.cars_fragment, container, false);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
isFragmentAdded();
RecyclerViewposts=getView().findViewById(R.id.List_of_videos_and_images);
LinearLayoutManager llm = new LinearLayoutManager(getActivity());
llm.setOrientation(LinearLayoutManager.VERTICAL);
posts.setLayoutManager(llm);
SliderAdapter adapter = new SliderAdapter(getActivity(),a.data);
posts.setAdapter(adapter);
}
void filldata(){
a.add("https://www.youtube.com/watch?v=EoojNzIL2cQ");
a.add("https://www.youtube.com/watch?v=6Viyt2aIOG8");
}
boolean isFragmentAdded(){
if (!isAdded()) {
FragmentAdded=false;
return false;
}
else{
FragmentAdded=true;
fragments = getChildFragmentManager().getFragments();
return true;
}
}
}
SliderAdapter.java：
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import com.google.android.youtube.player.YouTubeInitializationResult;
import com.google.android.youtube.player.YouTubePlayer;
import com.google.android.youtube.player.YouTubePlayerSupportFragment;
import com.squareup.picasso.Picasso;
import java.util.ArrayList;
import static android.content.ContentValues.TAG;
public class SliderAdapter extends RecyclerView.Adapter<SliderAdapter.ViewHolder>{
Context context;
ArrayList<String> myDataSet;
int flag;
String videoId;
public SliderAdapter (Context context, ArrayList<String> data)
{
this.context = context;
myDataSet=data;
}
@Override
public int getItemViewType(int position) {
if(myDataSet.get(position).toString().contains("http")==true) {
flag=1;
return 1;
}
else {
flag=0;
return 0;
}
}
@Override
public SliderAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
//flag 1 for video , 0 for image
View view = null;
if(viewType==1)
view =LayoutInflater.from(parent.getContext()).inflate(R.layout.video_template, parent, false);
else
view = LayoutInflater.from(parent.getContext()).inflate(R.layout.image_template, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
if(flag==1) {
videoId = myDataSet.get(position).toString().replace("https://www.youtube.com/watch?v=","");
Log.i(TAG, "onBindViewHolder: "+videoId.toString());
playVideo(videoId,holder.youTubePlayerFragment);
Log.i(TAG, "onBindViewHolder: entered if flag ==1");
}
if (flag==0){
Picasso.get().load(myDataSet.get(position).toString()).placeholder(R.drawable.car2).into(holder.imageView);
}
}
public void playVideo(final String videoId, YouTubePlayerSupportFragment youTubePlayerView) {
//initialize youtube player view
Log.i(TAG, "playVideo: before initialization");
youTubePlayerView.initialize("AIzaSyAsz0MzCEsVkmfsgZC6yh-qQZ_KC77JC08",
new YouTubePlayer.OnInitializedListener() {
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider,
YouTubePlayer youTubePlayer, boolean b) {
youTubePlayer.cueVideo(videoId);
}
@Override
public void onInitializationFailure(YouTubePlayer.Provider provider,
YouTubeInitializationResult youTubeInitializationResult) {
Log.i(TAG, "onInitializationFailure: error ");
}
});
}
@Override
public int getItemCount() {
return myDataSet.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
// public VideoView videoView;
public ImageView imageView;
public YouTubePlayerSupportFragment youTubePlayerFragment = YouTubePlayerSupportFragment.newInstance();
Cars b =new Cars();
public ViewHolder(View itemView) {
super(itemView);
imageView= itemView.findViewById(R.id.imageViewer);
Log.i(TAG, "ViewHolder: before youtube viewer");
if( b.FragmentAdded==true){
FragmentTransaction transaction =b.getChildFragmentManager().beginTransaction();
transaction.add(R.id.youtubePlayerViewer, youTubePlayerFragment).commit();
Log.i(TAG, "ViewHolder: transaction added");
}
Log.i(TAG, "ViewHolder: after youtube viewer");
}
}
}
我认为代码的问题出在SliderAdapter中。如果这种情况永远无法实现，则不会加载视频查看器：
if( b.FragmentAdded==true){
FragmentTransaction transaction =b.getChildFragmentManager().beginTransaction();
transaction.add(R.id.youtubePlayerViewer, youTubePlayerFragment).commit();
我在网上搜索时看到的所有示例都是在活动中完成的，而不是片段中的recyclerview内部
。