我有聊天功能，其中包括语音留言。用于记录，将文件发送到服务器以及插入列表的代码也很好。
我的布局文件（list_item_chat），我有一个播放按钮，一个搜索栏和两个文本视图，显示播放文件的当前时间和持续时间（流媒体）：
list_item_chat.xml
public ChatPostAdapter adapterLoadingMore; //adapter global variable
//Binding adapter
adapterLoadingMore = (ChatPostAdapter) ((HeaderViewListAdapter) mList.getAdapter()).getWrappedAdapter();
adapterLoadingMore.setPlayPauseButtonListener(ChatActivity.this);
//method for playing audio file
public void playVoiceMessage(final View v, ChatPostItem chatPostItem) {
if (mp == null) {
mp = new MediaPlayer();
} else {
mp.reset();
}
String url = chatPostItem.getAudioFile();
try {
mp.setDataSource(url);
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
mp.setOnErrorListener(new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
return false;
}
});
mp.prepareAsync();
mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mediaPlayer) {
mp = null;
adapterLoadinMore.notifyDataSetChanged();
}
});
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void onPlayPauseIsClickListener(View v, int position, ChatPostItem chatPostItem, int play) {
if (play == 1) {
playVoiceMessage(v, chatPostItem);
} else if (play == 2) {
if (mp != null) {
if (mp.isPlaying()) {
mp.pause();
}
}
} else {
if (mp != null) {
mp.start();
}
}
}
我在我的活动（ChatActivity）中创建了一个监听器，并为我的适配器（ChatPostAdapter）中的每个PlayButton设置了监听器：
ChatActivity.java：
public View getView(final int position, View convertView, ViewGroup parent) {
View v = convertView;
LayoutInflater mInflater = (LayoutInflater) this.context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
try {
if (position >= 0 && position < navDrawerItems.size()) {
final ChatPostItem item = navDrawerItems.get(position);
if (item != null) {
UserData user = ((MyApplication) this.context.getApplicationContext()).getUser();
final ViewHolder holder;
if (v == null) {
holder = new ViewHolder();
v = mInflater.inflate(R.layout.list_item_chat, parent, false);
holder.Post = (TextView) v.findViewById(R.id.list_item_chat_post_text);
holder.CreationDatetime = (TextView) v.findViewById(R.id.list_item_chat_post_date);
holder.CurrentTime = (TextView) v.findViewById(R.id.lblCurrentDuration);
holder.SeekBarCurrentDuration = (SeekBar) v.findViewById(R.id.skbAudioCurrentState);
holder.PlayButton = (ImageButton) v.findViewById(R.id.btnPlayAudioStreaming);
holder.CreationDatetime = (TextView) v.findViewById(R.id.list_item_chat_post_date);
holder.layout_content_all_items = (LinearLayout) v.findViewById(R.id.layout_content_all_items);
holder.layout_main_container = (LinearLayout) v.findViewById(R.id.layout_main_container);
holder.chat_right_post = (ImageView) v.findViewById(R.id.chat_right_post);
holder.chat_left_post = (ImageView) v.findViewById(R.id.chat_left_post);
holder.layout_player_content = (RelativeLayout) v.findViewById(R.id.layout_player_content);
holder.lblTotalDuration = (TextView) v.findViewById(R.id.lblTotalDuration);
v.setTag(holder);
} else {
holder = (ViewHolder) v.getTag();
if (position != mButtonPosition) {
holder.PlayButton.setImageResource(R.drawable.ic_action_play);
holder.SeekBarCurrentDuration.setProgress(0);
holder.SeekBarCurrentDuration.setMax(100);
} else {
holder.PlayButton.setImageResource(R.drawable.ic_action_pause);
//get current progress and current playing time
//set it on the tag for the respective View and bla bla bla bla...
}
}
showHideLayoutButtons(holder, item, user);
holder.PlayButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (playPauseButtonListener != null) {
int PlayStopButtonState = Integer.parseInt(v.getTag().toString());
int previousPosition = mButtonPosition;
if (PlayStopButtonState == 1) {
//necessary to control recycling
mButtonPosition = position;
v.setTag(2);
playPauseButtonListener.onPlayPauseIsClickListener(v, position, item, PlayStopButtonState);
((ImageButton) v).setImageResource(R.drawable.ic_action_pause);
} else if (PlayStopButtonState == 2) {
mButtonPosition = -1;
v.setTag(3);
playPauseButtonListener.onPlayPauseIsClickListener(v, position, item, PlayStopButtonState);
((ImageButton) v).setImageResource(R.drawable.ic_action_play);
} else {
mButtonPosition = -1;
v.setTag(2);
playPauseButtonListener.onPlayPauseIsClickListener(v, position, item, PlayStopButtonState);
((ImageButton) v).setImageResource(R.drawable.ic_action_pause);
}
if (previousPosition != -1)
notifyDataSetChanged();
}
}
});
try {
SimpleDateFormat originalFormat = new SimpleDateFormat(US_DATE_TIME, Locale.US);
SimpleDateFormat targetFormat = new SimpleDateFormat(STANDARD_DATE_TIME, Locale.US);
Date date = originalFormat.parse(item.getCreatedDateTime());
holder.CreationDatetime.setText(targetFormat.format(date));
} catch (Exception e) {
holder.CreationDatetime.setText(item.getCreatedDateTime());
}
}
}
} catch (Exception e) {
// TODO: handle exception
Log.w("Adaptor getView", e.toString());
}
return v;
}
OnPlayPauseButtonClickListener playPauseButtonListener;
public interface OnPlayPauseButtonClickListener {
void onPlayPauseIsClickListener(View button, int position, ChatPostItem chatPostItem, int play);
}
public void setPlayPauseButtonListener(OnPlayPauseButtonClickListener playPauseButtonListener) {
this.playPauseButtonListener = playPauseButtonListener;
}
}
ChatPostAdapter.java：
{{1}}
单击播放时，文件开始正常播放。我使播放/暂停控制也正常。
问题是：
我在该列表中播放一些OTHER文件时遇到了麻烦！我不知道如何妥善控制这个。 我已经尝试过任何我认识的方法，多次研究过，现在我在这里寻求帮助。如果有人能够提供帮助，我将不胜感激！
非常感谢！