问题： 我有recyclerview和mediaplayer 我有很多搜索栏（由RecyclerView.Adapter管理），通过更改一行项的搜索栏，它会自动更改上一行或下一行的搜索栏。
主要问题是recyclerview的第二项是播放歌曲，我更改了最后一项的搜索栏，它也改变了第二项的搜索栏。
我猜两个观点都使用相同的参考。
@ViewholderClass
public class AudioViewHolder extends BaseHolder<ChatViewModelList> {
private Context context;
TextView tvTimestamp;
ImageView ivUser;
private final TextView startTime;
static PlayAudioFragment playAudioFragment;
private View loadingAudio;
private ImageView playAudio;
private TextView durationAudio;
private SeekBar progressAudio;
public AudioViewHolder(View itemView, Context context, PlayAudioFragment playAudioFragment) {
super(itemView);
this.context = context;
tvTimestamp = (TextView) itemView.findViewById(R.id.ImgTime);
ivUser = (ImageView) itemView.findViewById(R.id.ContactListIcon);
this.playAudioFragment = playAudioFragment;
loadingAudio = itemView.findViewById(R.id.chatMessageLoadingAudio);
playAudio = (ImageView) itemView.findViewById(R.id.chatMessagePlayAudio);
progressAudio = (SeekBar) itemView.findViewById(R.id.chatMessageProgressAudio);
durationAudio = (TextView) itemView.findViewById(R.id.chatMessageDurationAudio);
startTime = (TextView) itemView.findViewById(R.id.startTime);
}
@Override
public void BindData(final ChatViewModelList model) {
setIvUser(model.getMessage().getUserModel().getPhoto_profile());
setTvTimestamp(model.getMessage().getTimeStamp());
if (model.getMessage().getFileModel().getType().equals(Media.Type.Audio)) {
startTime.setText(TimeFormatter.getDurationString(0));
progressAudio.setProgress(0);
progressAudio.setMax(100);
playAudio.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
FileModel fileModel = model.getMessage().getFileModel();
if (playAudioFragment.isStopped() || !playAudioFragment.getCurrentMedia().equals(fileModel)) {
playAudioFragment.resetPlayback();
playAudioFragment.setCustomPlayback(playAudio, durationAudio, loadingAudio, progressAudio);
playAudioFragment.loadNewMedia(fileModel);
} else {
playAudioFragment.togglePlayback();
}
}
});
if (!model.getMessage().getFileModel().equals(playAudioFragment.getCurrentMedia())) {
loadingAudio.setVisibility(View.GONE);
progressAudio.setProgress(0);
playAudio.setImageResource(R.drawable.ic_play_arrow_blue_36dp);
int duration = (int) model.getMessage().getFileModel().getDuration();
long minutes = TimeUnit.MILLISECONDS.toMinutes(duration);
long seconds = TimeUnit.MILLISECONDS.toSeconds(duration)
- TimeUnit.MINUTES.toSeconds(minutes);
durationAudio.setText(String.format("%02d:%02d", minutes, seconds));
if (playAudioFragment.isPlayView(playAudio)) {
playAudioFragment.resetPlayback();
}
} else {
playAudioFragment.setCustomPlayback(playAudio, durationAudio, loadingAudio, progressAudio);
}
}
}
public void setIvUser(String urlPhotoUser) {
if (ivUser == null) return;
Glide.with(ivUser.getContext()).load(urlPhotoUser).centerCrop().placeholder(R.drawable.ic_menu_camera).transform(new CircleTransform(ivUser.getContext())).override(40, 40).into(ivUser);
}
public void setTvTimestamp(String timestamp) {
if (tvTimestamp == null) return;
tvTimestamp.setText(DateUtils.convertMillisecondsToTime(Long.valueOf(timestamp)));
}
}
用于播放音频的片段代码。
public class PlayAudioFragment extends DialogFragment {
public static final String TAG = "RecordAudioFragment";
public static final int MAX_DURATION_MS = 50 * 1000;
public static final int IDLE_STATUS = 0;
public static final int READY_STATUS = 2;
public static final int PLAYER_STATUS = 3;
public static final int PLAYING_STATUS = 0;
public static final int PAUSED_STATUS = 1;
public static final int STOPPED_STATUS = 2;
public static final String EXTRA_MEDIA = "media";
public TextView startTime;
public TextView endTime;
public ImageView play;
public SeekBar progress;
public TextView mainAction;
public TextView cancel;
public View loadingContainer;
public Handler handler;
public static File recordedAudio;
public MediaRecorder mediaRecorder;
public MediaPlayer mediaPlayer;
public int recordingStatus = IDLE_STATUS;
public int playbackStatus = STOPPED_STATUS;
public int duration = 0;
public CountDownTimer timer;
private RelativeLayout root;
private FileModel media;
public static PlayAudioFragment newInstance(Media media) {
Bundle args = new Bundle();
args.putParcelable(EXTRA_MEDIA, media);
PlayAudioFragment fragment = new PlayAudioFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_record_audio, container, false);
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setupObjects();
setupView(view);
setupDataIfExists();
}
public void setupDataIfExists() {
Bundle args = getArguments();
if (args != null && args.containsKey(EXTRA_MEDIA)) {
media = args.getParcelable(EXTRA_MEDIA);
switchRecordingStatus(PLAYER_STATUS);
root.setVisibility(View.VISIBLE);
}
}
public void setupView(View view) {
loadingContainer = view.findViewById(R.id.loadingContainer);
endTime = (TextView) view.findViewById(R.id.endTime);
endTime.setText(TimeFormatter.getDurationStringFromMillis(MAX_DURATION_MS));
startTime = (TextView) view.findViewById(R.id.startTime);
progress = (SeekBar) view.findViewById(R.id.progress);
root = (RelativeLayout) view.findViewById(R.id.root);
play = (ImageView) view.findViewById(R.id.play);
play.setOnClickListener(onPlayClickListener);
setCustomPlayback(play, startTime, loadingContainer, progress);
mainAction = (TextView) view.findViewById(R.id.mainAction);
cancel = (TextView) view.findViewById(R.id.cancel);
cancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
dismiss();
}
});
}
public void setCustomPlayback(ImageView play, TextView duration, View loadingContainer, SeekBar progress) {
this.loadingContainer = loadingContainer;
this.startTime = duration;
this.startTime.setText(TimeFormatter.getDurationString(0));
this.play = play;
this.progress = progress;
this.progress.setOnSeekBarChangeListener(onSeekBarChangeListener);
setupObjects();
if (recordingStatus == PLAYER_STATUS) {
switchPlaybackStatus(PLAYING_STATUS);
handler.post(playRunnable);
}
}
public SeekBar.OnSeekBarChangeListener onSeekBarChangeListener = new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (mediaPlayer != null && fromUser) {
mediaPlayer.seekTo(progress);
handler.removeCallbacks(playRunnable);
long minutes = TimeUnit.MILLISECONDS.toMinutes(mediaPlayer.getCurrentPosition());
long seconds = TimeUnit.MILLISECONDS.toSeconds(mediaPlayer.getCurrentPosition())
- TimeUnit.MINUTES.toSeconds(minutes);
startTime.setText(String.format("%02d:%02d", minutes, seconds));
updateSeekBar();
} else if (mediaPlayer == null && fromUser) {
prepareMediaPlayerFromPoint(progress);
updateSeekBar();
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
if (mediaPlayer != null) {
// remove message Handler from updating progress bar
handler.removeCallbacks(playRunnable);
}
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
if (mediaPlayer != null) {
handler.removeCallbacks(playRunnable);
mediaPlayer.seekTo(seekBar.getProgress());
long minutes = TimeUnit.MILLISECONDS.toMinutes(mediaPlayer.getCurrentPosition());
long seconds = TimeUnit.MILLISECONDS.toSeconds(mediaPlayer.getCurrentPosition())
- TimeUnit.MINUTES.toSeconds(minutes);
startTime.setText(String.format("%02d:%02d", minutes, seconds));
updateSeekBar();
}
}
};
private void prepareMediaPlayerFromPoint(int progresss) {
mediaPlayer = new MediaPlayer();
try {
Uri uri = Uri.fromFile(new File(media.getUrl_file()));
String path = FileHelper.getPath(getActivity(), uri);
mediaPlayer.setDataSource(path);
mediaPlayer.prepare();
progress.setMax(mediaPlayer.getDuration());
mediaPlayer.seekTo(progresss);
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
}
});
} catch (IOException e) {
}
}
public void loadNewMedia(FileModel media) {
this.media = media;
stopCompletely();
switchRecordingStatus(PLAYER_STATUS);
}
public boolean isStopped() {
return playbackStatus == STOPPED_STATUS;
}
public boolean isPlayView(View play) {
return this.play != null && this.play.equals(play);
}
public View.OnClickListener onPlayClickListener = new View.OnClickListener() {
@Override
public void onClick(View view) {
togglePlayback();
}
};
public void setupObjects() {
handler = new Handler();
}
@Override
public void onDismiss(DialogInterface dialog) {
super.onDismiss(dialog);
stopCompletely();
}
@Override
public void onDestroy() {
super.onDestroy();
handler.removeCallbacks(playRunnable);
if (mediaPlayer != null) {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}
public Runnable playRunnable = new Runnable() {
@Override
public void run() {
if (mediaPlayer != null) {
int mCurrentPosition = mediaPlayer.getCurrentPosition();
progress.setProgress(mCurrentPosition);
long minutes = TimeUnit.MILLISECONDS.toMinutes(mCurrentPosition);
long seconds = TimeUnit.MILLISECONDS.toSeconds(mCurrentPosition)
- TimeUnit.MINUTES.toSeconds(minutes);
startTime.setText(String.format("%02d:%02d", minutes, seconds));
updateSeekBar();
}
}
};
private void updateSeekBar() {
handler.postDelayed(playRunnable, 100);
}
public void stopCompletely() {
handler.removeCallbacks(playRunnable);
if (mediaPlayer != null) {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}
public void stopp() {
if (mediaPlayer != null) {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}
public void switchRecordingStatus(int status) {
if (cancel != null) cancel.setText("cancel");
recordingStatus = status;
switch (status) {
case READY_STATUS:
timer.cancel();
play.setVisibility(View.VISIBLE);
prepareToPlay();
if (mainAction != null) mainAction.setText("Play");
break;
case PLAYER_STATUS:
if (mainAction != null) mainAction.setVisibility(View.GONE);
switchPlaybackStatus(PLAYING_STATUS);
loadAudio();
}
}
public void prepareToPlay() {
switchPlaybackStatus(PAUSED_STATUS);
progress.setProgress(0);
progress.setMax(mediaPlayer.getDuration());
startTime.setText(TimeFormatter.getDurationString(0));
if (endTime != null) {
if (mediaPlayer != null)
endTime.setText(TimeFormatter.getDurationStringFromMillis(mediaPlayer.getDuration()));
else
endTime.setText(TimeFormatter.getDurationString(duration));
}
}
public void switchPlaybackStatus(int status) {
if (play == null) return;
playbackStatus = status;
play.setVisibility(View.VISIBLE);
switch (status) {
case PLAYING_STATUS:
play.setImageResource(R.drawable.ic_media_pause);
break;
case PAUSED_STATUS:
play.setImageResource(R.drawable.ic_play_arrow_blue_36dp);
break;
case STOPPED_STATUS:
play.setImageResource(R.drawable.ic_play_arrow_blue_36dp);
progress.setProgress(0);
}
}
public void togglePlayback() {
switch (playbackStatus) {
case PLAYING_STATUS:
mediaPlayer.pause();
switchPlaybackStatus(PAUSED_STATUS);
break;
case STOPPED_STATUS:
case PAUSED_STATUS:
loadAudio();
switchPlaybackStatus(PLAYING_STATUS);
}
}
public void loadAudio() {
if (mediaPlayer != null) {
play.setImageResource(R.drawable.ic_media_pause);
handler.removeCallbacks(playRunnable);
mediaPlayer.start();
updateSeekBar();
} else {
mediaPlayer = new MediaPlayer();
try {
if (recordingStatus == PLAYER_STATUS) {
Uri uri = Uri.fromFile(new File(media.getUrl_file()));
String path = FileHelper.getPath(getActivity(), uri);
mediaPlayer.setDataSource(path);
} else
mediaPlayer.setDataSource(recordedAudio.getAbsolutePath());
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.prepareAsync();
progress.setMax(mediaPlayer.getDuration());
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mediaPlayer) {
startPlay();
}
});
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
if(mp.getCurrentPosition()!=0) {
resetPlayback();
switchPlaybackStatus(STOPPED_STATUS);
stopp();
}
}
});
} catch (IOException exception) {
Log.e(TAG, "prepare() failed");
}
}
}
public void startPlay() {
startTime.setText(TimeFormatter.getDurationString(0));
if (endTime != null) {
endTime.setText(TimeFormatter.getDurationStringFromMillis(mediaPlayer.getDuration()));
}
progress.setMax(mediaPlayer.getDuration());
loadingContainer.setVisibility(View.GONE);
handler.post(playRunnable);
mediaPlayer.start();
}
public void resetPlayback() {
if (handler != null) handler.removeCallbacks(playRunnable);
switchPlaybackStatus(STOPPED_STATUS);
play = null;
duration = 0;
progress = null;
if (mediaPlayer != null) {
startTime.setText(TimeFormatter.getDurationStringFromMillis(mediaPlayer.getDuration()));
}
}
public FileModel getCurrentMedia() {
return media;
}
}