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package com.example.sandroid.dance.Controllers;

import android.app.Activity;
import android.graphics.Rect;
import android.media.MediaPlayer;
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.ProgressBar;

import com.example.sandroid.dance.R;

import java.lang.ref.WeakReference;
import java.util.Arrays;
import java.util.List;

import butterknife.Bind;
import butterknife.ButterKnife;

/**
 * Created by Ahmed on 12/15/2015.
 */
public class Adapter extends RecyclerView.Adapter<Adapter.VideoViewHolder> {
    List<String> videos = Arrays.asList(
            "http://techslides.com/demos/sample-videos/small.mp4";,
            "http://download.wavetlan.com/SVV/Media/HTTP/H264/Other_Media/H264_test8_voiceclip_mp4_480x320.mp4";,
            "http://download.wavetlan.com/SVV/Media/HTTP/MP4/ConvertedFiles/Media-Convert/Unsupported/dw11222.mp4";,
            "http://download.wavetlan.com/SVV/Media/HTTP/MP4/ConvertedFiles/Media-Convert/Unsupported/test7.mp4";,
            "http://techslides.com/demos/sample-videos/small.mp4";,
            "http://download.wavetlan.com/SVV/Media/HTTP/MP4/ConvertedFiles/Media-Convert/Unsupported/test7.mp4";,
            "http://download.wavetlan.com/SVV/Media/HTTP/MP4/ConvertedFiles/Media-Convert/Unsupported/test7.mp4";,
            "http://techslides.com/demos/sample-videos/small.mp4";
    );
    WeakReference<Activity> activityWeakReference;

    public Adapter(Activity activity) {
        this.activityWeakReference = new WeakReference<>(activity);
    }

    private Activity getActivity() {
        return activityWeakReference.get();
    }

    @Override
    public VideoViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()) .inflate(R.layout.videos_list_item_video, parent, false);


//        try{
//            holder.mVideoView.setMediaController(mediaControls);
//            holder.mVideoView.setVideoURI(Uri.parse("android.resource://" + context.getPackageName() + "/" + R.raw.kitkat));
//        } catch (Exception e){
//            Log.e("Error", e.getMessage());
//            e.printStackTrace();
//        }
//        holder.mVideoView.requestFocus();
//        holder.mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
//            @Override
//            public void onPrepared(MediaPlayer mp) {
//                progressDialog.dismiss();
//                holder.mVideoView.start();
//            }
//        });









                return new VideoViewHolder(view);
    }

    @Override
    public void onBindViewHolder(VideoViewHolder holder, int position) {
        holder.videoUrl = videos.get(position);
        holder.imageLoaderProgressBar.setVisibility(View.INVISIBLE);
        holder.videoImageView.setVisibility(View.VISIBLE);
    }

    @Override
    public void onViewRecycled(VideoViewHolder holder) {
        if (holder == currentVideoViewHolder) {
            currentVideoViewHolder = null;
            holder.stopVideo();
        }
        holder.videoView.stopPlayback();
        super.onViewRecycled(holder);

    }

    @Override
    public int getItemCount() {
        return videos.size();
    }

    public void onScrolled(RecyclerView recyclerView) {
        if (currentVideoViewHolder != null) {
            currentVideoViewHolder.onScrolled(recyclerView);
        }
    }

    VideoViewHolder currentVideoViewHolder;

    class VideoViewHolder extends RecyclerView.ViewHolder {
        @Bind(R.id.video_play_img_btn)
        ImageView videoPlayImageButton;
        @Bind(R.id.lyt_image_loader_progress_bar)
        ProgressBar imageLoaderProgressBar;
        @Bind(R.id.video_feed_item_video)
        CustomTextureVideoView videoView;
        @Bind(R.id.video_feed_item_video_image)
        ImageView videoImageView;

        String videoUrl;

        public String getVideoUrl() {
            return videoUrl;
        }

        public VideoViewHolder(View view) {
            super(view);
            ButterKnife.bind(this, view);
            videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                @Override
                public void onPrepared(final MediaPlayer mp) {
                    Log.v("Video", "onPrepared" + videoView.getVideoPath());
                    int width = mp.getVideoWidth();
                    int height = mp.getVideoHeight();
                    videoView.setIsPrepared(true);
                    UIUtils.resizeView(videoView, UIUtils.getScreenWidth(getActivity()), UIUtils.getScreenWidth(getActivity()) * height / width);
                    if (currentVideoViewHolder == VideoViewHolder.this) {
                        videoImageView.setVisibility(View.GONE);
                        imageLoaderProgressBar.setVisibility(View.INVISIBLE);
                        videoView.setVisibility(View.VISIBLE);
                        videoView.seekTo(0);
                        videoView.start();
                    }
                }
            });
            videoView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
                @Override
                public void onFocusChange(View v, boolean hasFocus) {
                    Log.v("Video", "onFocusChange" + hasFocus);
                    if (!hasFocus && currentVideoViewHolder == VideoViewHolder.this) {
                        stopVideo();
                    }

                }
            });
            videoView.setOnInfoListener(new MediaPlayer.OnInfoListener() {
                @Override
                public boolean onInfo(MediaPlayer mp, int what, int extra) {
                    Log.v("Video", "onInfo" + what + " " + extra);

                    return false;
                }
            });
            videoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                @Override
                public void onCompletion(MediaPlayer mp) {
                    Log.v("Video", "onCompletion");

                    videoImageView.setVisibility(View.VISIBLE);
                    videoPlayImageButton.setVisibility(View.VISIBLE);

                    if (videoView.getVisibility() == View.VISIBLE)
                        videoView.setVisibility(View.INVISIBLE);


                    imageLoaderProgressBar.setVisibility(View.INVISIBLE);
                    currentVideoViewHolder = null;
                }
            });
            videoPlayImageButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (currentVideoViewHolder != null && currentVideoViewHolder != VideoViewHolder.this) {
                        currentVideoViewHolder.videoView.pause();
                        currentVideoViewHolder.videoImageView.setVisibility(View.INVISIBLE);
                        currentVideoViewHolder.videoPlayImageButton.setVisibility(View.VISIBLE);
                        currentVideoViewHolder.imageLoaderProgressBar.setVisibility(View.INVISIBLE);
                        if (currentVideoViewHolder.videoView.getVisibility() == View.VISIBLE)
                            currentVideoViewHolder.videoView.setVisibility(View.INVISIBLE);


                        currentVideoViewHolder = null;
                    }

                    currentVideoViewHolder = VideoViewHolder.this;

                    videoPlayImageButton.setVisibility(View.INVISIBLE);
                    imageLoaderProgressBar.setVisibility(View.VISIBLE);
                    videoView.setVisibility(View.VISIBLE);
                    videoImageView.setVisibility(View.INVISIBLE);
                    if (!getVideoUrl().equals(videoView.getVideoPath())) {
                        videoView.setIsPrepared(false);
                        videoView.setVideoPath(getVideoUrl());
                        videoView.requestFocus();
                    } else {
                        if (videoView.isPrepared()) {
                            imageLoaderProgressBar.setVisibility(View.INVISIBLE);
                        } else {
                            imageLoaderProgressBar.setVisibility(View.VISIBLE);
                        }
                        videoView.requestFocus();
                        videoView.seekTo(0);
                        videoView.start();
                    }
                }
            });

        }

        public void stopVideo() {
            Log.v("Video", "stopVideo");

            //imageView is within the visible window
            videoView.pause();
            if (videoView.getVisibility() == View.VISIBLE) {
                videoView.setVisibility(View.INVISIBLE);
            }
            videoImageView.setVisibility(View.VISIBLE);
            videoPlayImageButton.setVisibility(View.VISIBLE);
            imageLoaderProgressBar.setVisibility(View.INVISIBLE);
            currentVideoViewHolder = null;
        }

        public void onScrolled(RecyclerView recyclerView) {
            if (isViewNotVisible(videoPlayImageButton, recyclerView) || isViewNotVisible(imageLoaderProgressBar, recyclerView)) {
                //imageView is within the visible window
                stopVideo();

            }
        }

        public boolean isViewNotVisible(View view, RecyclerView recyclerView) {
            Rect scrollBounds = new Rect();
            recyclerView.getHitRect(scrollBounds);
            return view.getVisibility() == View.VISIBLE && !view.getLocalVisibleRect(scrollBounds);
        }
    }
}
package com.example.sandroid.dance.Controllers;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;

import com.example.sandroid.dance.R;

public class VideosMainActivity extends AppCompatActivity {

    RecyclerView mRecyclerView;
    Adapter mAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.videos_activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);
        mAdapter = new Adapter(this);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        mRecyclerView.addItemDecoration(new SimpleDividerItemDecoration(this));
        mRecyclerView.setHasFixedSize(true);
        mRecyclerView.setAdapter(mAdapter);
        mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
            }

            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                if (newState == RecyclerView.SCROLL_STATE_DRAGGING || newState == RecyclerView.SCROLL_STATE_SETTLING || newState == RecyclerView.SCROLL_STATE_IDLE) {
                    mAdapter.onScrolled(recyclerView);
                }
            }

        });

    }

}

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