使用 youtube API（回收站视图）显示的视频只能水平播放，不能垂直播放

我开发了一个自定义应用程序来使用回收器视图显示 youtube 视频。视频显示正常，但即使手机的方向不变，点击播放视频的方向也会更改为水平。

示例中有 3 个视频，它们都垂直堆叠，但是在尝试播放时，方向变为水平（全屏）。谁能帮我解决这个问题。

谢谢维巴夫

Recycler 和 View Holder 代码：

    package com.example.android.kanchikamakshiammanandperiva;
            import android.app.Activity;
            import android.content.Context;
            import android.content.Intent;
            import android.content.res.Resources;
            import android.support.v7.widget.LinearLayoutManager;
            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 android.widget.RelativeLayout;
            import android.widget.Toast;
            import android.util.Log;
            import android.net.Uri;
            import android.gesture.Gesture;
            import android.content.pm.PackageManager;
            import com.google.android.youtube.player.YouTubeInitializationResult;
            import com.google.android.youtube.player.YouTubeStandalonePlayer;
            import com.google.android.youtube.player.YouTubeThumbnailLoader;
            import com.google.android.youtube.player.YouTubeThumbnailView;

            import static android.R.attr.data;
            import static android.app.PendingIntent.getActivity;

    /**
     * Created by Rajan.V on 08-04-2017.
     */
    public class RecyclerActivity extends RecyclerView.Adapter<RecyclerActivity.VideoInfoHolder> {

        //these ids are the unique id for each video
        String[] VideoID = {"R1YSjGzUo-w","ROoMBKX7264"};
        Context ctx;
        String key="AIzaSyDNTmnhwyDEGEQMkZmqpc8IHb-jXytG4WE";

        public RecyclerActivity(Context context) {
            this.ctx = context;

        }

        @Override
        public VideoInfoHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item, parent, false);
            return new VideoInfoHolder(itemView);
        }

        @Override
        public void onBindViewHolder(final VideoInfoHolder holder, final int position) {


            final YouTubeThumbnailLoader.OnThumbnailLoadedListener  onThumbnailLoadedListener = new YouTubeThumbnailLoader.OnThumbnailLoadedListener(){
                @Override
                public void onThumbnailError(YouTubeThumbnailView youTubeThumbnailView, YouTubeThumbnailLoader.ErrorReason errorReason) {
                    Log.i("onThumbnailError1","onThumbnailError1");
                }

                @Override
                public void onThumbnailLoaded(YouTubeThumbnailView youTubeThumbnailView, String s) {

                    youTubeThumbnailView.setVisibility(View.VISIBLE);
                    holder.relativeLayoutOverYouTubeThumbnailView.setVisibility(View.VISIBLE);
                    Log.i("onThumbnailLoaded1","onThumbnailLoaded1");
                }
            };



            holder.youTubeThumbnailView.initialize("AIzaSyDNTmnhwyDEGEQMkZmqpc8IHb-jXytG4WE", new YouTubeThumbnailView.OnInitializedListener() {
                @Override
                public void onInitializationSuccess(YouTubeThumbnailView youTubeThumbnailView, YouTubeThumbnailLoader youTubeThumbnailLoader) {

                    youTubeThumbnailLoader.setVideo(VideoID[position]);
                    youTubeThumbnailLoader.setOnThumbnailLoadedListener(onThumbnailLoadedListener);
                    Log.i("success1","success1");
                }

                @Override
                public void onInitializationFailure(YouTubeThumbnailView youTubeThumbnailView, YouTubeInitializationResult youTubeInitializationResult) {
                    Log.i("failure1","failure1");

                }
            });
        }

        @Override
        public int getItemCount() {
            return VideoID.length;
        }

        public class VideoInfoHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

            protected RelativeLayout relativeLayoutOverYouTubeThumbnailView;
            YouTubeThumbnailView youTubeThumbnailView;
            protected ImageView playButton;


            public VideoInfoHolder(View itemView) {
                super(itemView);
                Log.i("VideoInfoHolder","VideoInfoHolder");
                playButton=(ImageView)itemView.findViewById(R.id.btnYoutube_player);
                playButton.setOnClickListener(this);
                relativeLayoutOverYouTubeThumbnailView = (RelativeLayout) itemView.findViewById(R.id.relativeLayout_over_youtube_thumbnail);
                youTubeThumbnailView = (YouTubeThumbnailView) itemView.findViewById(R.id.youtube_thumbnail);
            }

            @Override
            public void onClick(View v) {
                Log.i("onClick","onClick");
    try {
        Intent intent = YouTubeStandalonePlayer.createVideoIntent((Activity) ctx, "AIzaSyDNTmnhwyDEGEQMkZmqpc8IHb-jXytG4WE", VideoID[getLayoutPosition()]);

        ctx.startActivity(intent);
    } catch(Exception e)
    {
        Toast.makeText(ctx, e.toString(), Toast.LENGTH_LONG).show();
    }

        } }}

列表项 XML

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/parent_relativeLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >



        <com.google.android.youtube.player.YouTubeThumbnailView
            android:id="@+id/youtube_thumbnail"
            android:layout_width="match_parent"
            android:layout_height="500dp"
            android:scaleType="centerCrop"
            android:visibility="visible"/>

        <RelativeLayout android:id="@+id/relativeLayout_over_youtube_thumbnail"
            android:layout_width="match_parent"
            android:layout_height="550dp"
            android:background="@color/color_background_transparent"
            android:visibility="visible">

            <ImageView android:id="@+id/btnYoutube_player"
                android:layout_width="250dp"
                android:layout_height="250dp"
                android:scaleType="center"
                android:layout_alignParentBottom="true"

                android:src="@drawable/ic_youtube_play_button"/>

        </RelativeLayout>


</RelativeLayout>