如何在 Recyclerview android 中使用带搜索栏的音频？

Question

我正在 Recyclview 上使用音频列表，它工作正常意味着我可以在 上播放音频文件Recyclview.

因为我在 Recyclview 上使用 Seekbar 和我的音频文件，问题是生成当我滚动 Recyclview 时另一个 items's of Recyclview Seekbar 正在改变（Seekbar 我正在使用进度音频文件播放。）

我想要 Recyclview 的其他 Seekbar 项在我滚动Recyclview

请检查我的代码，在我的 Recyclview 的 onBindViewHolder 中，我正在使用以下代码，请检查一次

 ((MyAudioChat) holder).sbMyAudio.setTag(position);
            ((MyAudioChat) holder).imgPlayAudio.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    ((MyAudioChat) holder).sbMyAudio.removeCallbacks(null);
                    ((MyAudioChat) holder).sbMyAudio.setProgress(0);
                    if (mediaPlayer == null) {
                        mediaPlayer();
                        ((MyAudioChat) holder).sbMyAudio.setMax(mediaPlayer.getDuration());
                    } else {
                        mediaPlayer.stop();
                        mediaPlayer.release();
                        mediaPlayer();
                        ((MyAudioChat) holder).sbMyAudio.setMax(mediaPlayer.getDuration());
                    }

                    ((MyAudioChat) holder).sbMyAudio.getTag();
                    ((MyAudioChat) holder).sbMyAudio.setMax(mediaPlayer.getDuration()); // Set the Maximum range of the
                    ((MyAudioChat) holder).sbMyAudio.setProgress(mediaPlayer.getCurrentPosition());// set current progress to song's
                    Runnable moveSeekBarThread = new Runnable() {
                        public void run() {
                            if (mediaPlayer.isPlaying()) {

                                int mediaPos_new = mediaPlayer.getCurrentPosition();
                                int mediaMax_new = mediaPlayer.getDuration();
                                ((MyAudioChat) holder).sbMyAudio.setMax(mediaMax_new);
                                ((MyAudioChat) holder).sbMyAudio.setProgress(mediaPos_new);
                                ((MyAudioChat) holder).sbMyAudio.postDelayed(this, 100); //Looping the thread after 0.1 second
                                ((MyAudioChat) holder).sbMyAudio.getTag();
                            }

                        }
                    };

                    ((MyAudioChat) holder).sbMyAudio.removeCallbacks(moveSeekBarThread);
                    ((MyAudioChat) holder).sbMyAudio.postDelayed(moveSeekBarThread, 100);

                }
            });

我在SO上访问了以下站点，但没有得到相关的解决方案
1 .First Link
2. Second Link

我们可以使用 setTag() 和 getTag() 来摆脱这个问题吗？我在上面的代码中使用了 setTag() 。请检查一次。

Answer 1

尽管您只询问了正确的 SeekBar 更新，但我假设（因为您还没有分片完整的源代码）很快您将面临以下问题链接到 Adapter 实现：

如何在 MediaPlayer 完成音频播放后删除 seekBar 更新程序？
activity暂停时如何释放MediaPlayer？
匿名 View.OnClickListeners 和 Runnables 被分配到 every onBindViewHolder 呼叫。我如何尽量减少他们不必要的分配？

您可以在此处找到完整的工作解决方案 - GitHub

以下来源试图解决上述所有问题。某些数据 structures/classes 是根据您的命名法假定的。

public class MainActivity extends Activity {

    private MediaPlayer mediaPlayer;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        RecyclerView rv = (RecyclerView) findViewById(R.id.rv);
        rv.setLayoutManager(new LinearLayoutManager(this));
        AudioChat audioChats[] = new AudioChat[128];
        rv.setAdapter(new MyAdapter(Arrays.asList(audioChats)));

    }

    @Override
    protected void onPause() {
        super.onPause();
        if (null != mediaPlayer) {
            mediaPlayer.release();
            mediaPlayer = null;
        }
    }

    private class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyAudioChat> {

        private List<AudioChat> audioChats;
        private int currentPlayingPosition;
        private SeekBarUpdater seekBarUpdater;

        MyAdapter(List<AudioChat> audioChats) {
            this.audioChats = audioChats;
            this.currentPlayingPosition = -1;
            seekBarUpdater = new SeekBarUpdater();
        }

        @Override
        public MyAudioChat onCreateViewHolder(ViewGroup parent, int viewType) {
            return new MyAudioChat(LayoutInflater.from(parent.getContext()).inflate(R.layout.item, parent, false));
        }

        @Override
        public void onBindViewHolder(MyAudioChat holder, int position) {
            if (position == currentPlayingPosition) {
                seekBarUpdater.playingHolder = holder;
                holder.sbMyAudio.post(seekBarUpdater);
            } else {
                holder.sbMyAudio.removeCallbacks(seekBarUpdater);
                holder.sbMyAudio.setProgress(0);
            }
        }

        private class SeekBarUpdater implements Runnable {
            MyAudioChat playingHolder;

            @Override
            public void run() {
                if (null != mediaPlayer && playingHolder.getAdapterPosition() == currentPlayingPosition) {
                    playingHolder.sbMyAudio.setMax(mediaPlayer.getDuration());
                    playingHolder.sbMyAudio.setProgress(mediaPlayer.getCurrentPosition());
                    playingHolder.sbMyAudio.postDelayed(this, 100);
                } else {
                    playingHolder.sbMyAudio.removeCallbacks(seekBarUpdater);
                }
            }
        }

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

        class MyAudioChat extends RecyclerView.ViewHolder implements View.OnClickListener {
            SeekBar sbMyAudio;
            ImageView imgPlayAudio;

            MyAudioChat(View itemView) {
                super(itemView);
                imgPlayAudio = (ImageView) itemView.findViewById(R.id.imgPlayAudio);
                imgPlayAudio.setOnClickListener(this);
                sbMyAudio = (SeekBar) itemView.findViewById(R.id.sbMyAudio);
            }

            @Override
            public void onClick(View v) {
                currentPlayingPosition = getAdapterPosition();
                if (mediaPlayer != null) {
                    if (null != seekBarUpdater.playingHolder) {
                        seekBarUpdater.playingHolder.sbMyAudio.removeCallbacks(seekBarUpdater);
                        seekBarUpdater.playingHolder.sbMyAudio.setProgress(0);
                    }
                    mediaPlayer.release();
                }
                seekBarUpdater.playingHolder = this;
                startMediaPlayer();
                sbMyAudio.setMax(mediaPlayer.getDuration());
                sbMyAudio.post(seekBarUpdater);
            }
        }

        private void startMediaPlayer() {
            mediaPlayer = MediaPlayer.create(getApplicationContext(), R.raw.mp3);
            mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                @Override
                public void onCompletion(MediaPlayer mp) {
                    seekBarUpdater.playingHolder.sbMyAudio.removeCallbacks(seekBarUpdater);
                    seekBarUpdater.playingHolder.sbMyAudio.setProgress(0);
                    mediaPlayer.release();
                    mediaPlayer = null;
                    currentPlayingPosition = -1;
                }
            });
            mediaPlayer.start();
        }
    }

    private class AudioChat {

    }
}

如何在 Recyclerview android 中使用带搜索栏的音频？

How to use the Audio with seekbar on Recyclview android?

android

android-mediaplayer

android-seekbar

android-recyclerview