Quickblox Android how to get the first message from incoming chat? - android

I'm using quickblox android sdk for my chat application. I know that when opponent user starts the conversation QBPrivateChatManagerListener -> chatCreated() event get fired. Below is my code. When chatCreated is fired I load the chat Fragment. In the chat fragment I have implemented the QBMessageListenerImpl interface. Problem here is that I don't get the first message from processMessage(). But I get the second message. So my question is how can I read the very first message that opponent user is sending ?
#Override
public void chatCreated(final QBPrivateChat qbPrivateChat, boolean b) {
ShowMessage("Incoming chat!!");
if(!b)
{
runOnUiThread(new Runnable() {
#Override
public void run() {
CreateNewChatForIncoming(qbPrivateChat);
}
});
}
}
public void CreateNewChatForIncoming(QBPrivateChat qbPrivateChat) {
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
PrivateChatFragment privateChatFragment = new PrivateChatFragment();
privateChatFragment.setOpponentuser(null);
privateChatFragment.setIncomingChat(qbPrivateChat);
HashMap<Integer, QBUser> allusers = applicationSingleton.getAllusers();
String title = allusers.get(qbPrivateChat.getParticipant()).getFullName();
if (title != null)
this.setTitle(title);
ft.replace(R.id.content_frame, privateChatFragment);
ft.commit();
}
/*---------------Private chat Fragment-------------------------*/
public class PrivateChatFragment extends SherlockFragment {
TextView txtmsg;
MessageAdaptor messageAdaptor;
ListView listView;
boolean ismode = true;
PrivateChat privateChat;
private QBUser opponentuser;
private QBPrivateChat incomingChat;
int opponentuserid;
ApplicationSingleton applicationSingleton;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.chattabfragment, container, false);
txtmsg = (TextView) view.findViewById(R.id.txtmsg);
SetFont(txtmsg);
applicationSingleton = (ApplicationSingleton)getSherlockActivity().getApplication();
messageAdaptor = new MessageAdaptor(this.getActivity().getApplicationContext(), R.layout.msg_list_item_inbound);
if (opponentuser != null) {
opponentuserid = opponentuser.getId();
HashMap<Integer, PrivateChat> allpvtchats = applicationSingleton.getAllpvtchats();
if(allpvtchats.containsKey(opponentuserid)) {
privateChat = applicationSingleton.getAllpvtchats().get(opponentuserid);
}
else {
privateChat = new PrivateChat(this, opponentuserid);
applicationSingleton.getAllpvtchats().put(opponentuserid,privateChat);
}
List<ChatMessage> allmsgs = GetMessageHistory(opponentuser);
if (allmsgs != null) {
ShowMessage("setting history");
messageAdaptor.LoadNewItems(allmsgs);
messageAdaptor.notifyDataSetChanged();
messageAdaptor.notifyDataSetInvalidated();
}
} else if (incomingChat != null) {
opponentuserid = incomingChat.getParticipant();
privateChat = new PrivateChat(this, incomingChat);
}
listView = (ListView) view.findViewById(R.id.listview_msg);
listView.setAdapter(messageAdaptor);
txtmsg.setOnKeyListener(new View.OnKeyListener() {
public boolean onKey(View v, int keyCode, KeyEvent event) {
if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
ChatMessage msg = new ChatMessage();
msg.setOutbound(true);
msg.setImg(R.drawable.boy1);
msg.setTime("10:30am");
msg.setMessage(txtmsg.getText().toString());
messageAdaptor.add(msg);
txtmsg.setText("");
scrolToBottom();
QBChatMessage chatMessage = new QBChatMessage();
chatMessage.setBody(msg.getMessage());
//chatMessage.setProperty("name", opponentuser.getFullName());
chatMessage.setSaveToHistory(true);
chatMessage.setMarkable(true);
try {
privateChat.sendMessage(chatMessage);
} catch (XMPPException e) {
e.printStackTrace();
} catch (SmackException.NotConnectedException e) {
e.printStackTrace();
}
return true;
}
return false;
}
});
return view;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public void onDestroyView() {
super.onDestroyView();
ApplicationSingleton applicationSingleton = (ApplicationSingleton) this.getActivity().getApplication();
HashMap<Integer, List<ChatMessage>> allchats = applicationSingleton.getAllchats();
allchats.put(opponentuserid, messageAdaptor.GetAllMessages());
applicationSingleton.setAllchats(allchats);
}
private List<ChatMessage> GetMessageHistory(QBUser opnnentuser) {
ApplicationSingleton applicationSingleton = (ApplicationSingleton) this.getActivity().getApplication();
HashMap<Integer, List<ChatMessage>> allchats = applicationSingleton.getAllchats();
if (allchats.containsKey(opnnentuser.getId())) {
return allchats.get(opnnentuser.getId());
} else {
return null;
}
}
void SetFont(TextView view) {
Typeface font = Typeface.createFromAsset(getActivity().getAssets(), "fonts/LatoRegular.ttf");
view.setTypeface(font);
}
public void scrolToBottom() {
listView.post(new Runnable() {
#Override
public void run() {
listView.setSelection(messageAdaptor.getCount() - 1);
}
});
}
public void UpdateAdaptor(final ChatMessage chatMessage) {
getActivity().runOnUiThread(new Runnable() {
#Override
public void run() {
if (messageAdaptor != null) {
messageAdaptor.add(chatMessage);
messageAdaptor.notifyDataSetChanged();
scrolToBottom();
}
}
});
}
public void setOpponentuser(QBUser opponentuser) {
this.opponentuser = opponentuser;
}
public void setIncomingChat(QBPrivateChat incomingChat) {
this.incomingChat = incomingChat;
}
public void SendNotification(String title, String message) {
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(getSherlockActivity())
.setSmallIcon(R.drawable.boy6_small)
.setContentTitle(title)
.setContentText(message);
int mId = GetNotificationid();
Intent resultIntent = new Intent(getSherlockActivity(), SideMenuActivity.class);
resultIntent.putExtra(GlobalData.OP_ID, opponentuser.getId());
resultIntent.putExtra(GlobalData.NOTIFY_MODE, true);
resultIntent.putExtra(GlobalData.NOTIFY_ID, mId);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(getSherlockActivity());
stackBuilder.addParentStack(SideMenuActivity.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSherlockActivity().getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(mId, mBuilder.build());
}
private void ShowMessage(final String msg) {
Runnable mrunnable = new Runnable() {
#Override
public void run() {
Toast.makeText(getActivity(), msg, Toast.LENGTH_LONG).show();
}
};
getActivity().runOnUiThread(mrunnable);
}
private int GetNotificationid()
{
Calendar c = Calendar.getInstance();
int milsec = c.get(Calendar.MILLISECOND);
return milsec;
}
}
/* --------------------Privatechat class------------------- */
public class PrivateChat extends QBMessageListenerImpl<QBPrivateChat>{
private QBPrivateChatManager privateChatManager;
private QBPrivateChat privateChat;
private PrivateChatFragment currentContext;
private ApplicationSingleton applicationSingleton;
public PrivateChat(PrivateChatFragment context,Integer opponentID) {
currentContext = context;
applicationSingleton = (ApplicationSingleton)currentContext.getSherlockActivity().getApplication();
privateChatManager = applicationSingleton.getChatService().getPrivateChatManager();
// init private chat
//
privateChat = privateChatManager.getChat(opponentID);
if (privateChat == null) {
privateChat = privateChatManager.createChat(opponentID, this);
}else{
privateChat.addMessageListener(this);
}
}
public PrivateChat(PrivateChatFragment context,QBPrivateChat incomingChat) {
privateChat = incomingChat;
privateChat.addMessageListener(this);
currentContext = context;
}
public void sendMessage(QBChatMessage message) throws XMPPException, SmackException.NotConnectedException {
privateChat.sendMessage(message);
}
public void release() {
privateChat.removeMessageListener(this);
}
#Override
public void processMessage(QBPrivateChat chat, QBChatMessage message) {
Log.e("Anuradha-message",message.getBody());
ChatMessage msg = new ChatMessage();
msg.setOutbound(false);
msg.setImg(R.drawable.boy2);
msg.setTime("10:30am");
msg.setMessage(message.getBody());
currentContext.UpdateAdaptor(msg);
if(applicationSingleton.isAppBackground()) {
HashMap<Integer,QBUser> allusers = applicationSingleton.getAllusers();
QBUser user = allusers.get(message.getSenderId());
currentContext.SendNotification(user.getFullName().toString(),"says "+message.getBody());
}
}
#Override
public void processError(QBPrivateChat chat, QBChatException error, QBChatMessage originChatMessage){
}
#Override
public void processMessageDelivered(QBPrivateChat privateChat, String messageID){
}
#Override
public void processMessageRead(QBPrivateChat privateChat, String messageID){
ShowMessage("msg read : "+messageID);
}
private void ShowMessage(final String msg) {
Runnable mrunnable = new Runnable() {
#Override
public void run() {
Toast.makeText(currentContext.getActivity(), msg, Toast.LENGTH_LONG).show();
}
};
currentContext.getActivity().runOnUiThread(mrunnable);
}
}

Try to change
privateChat = privateChatManager.getChat(opponentID);`enter code here` if (privateChat == null) {
privateChat = privateChatManager.createChat(opponentID, this);
}else{
privateChat.addMessageListener(this);
}

to
if (privateChat == null) {
privateChat = privateChatManager.createChat(opponentID, this);
}
privateChat.addMessageListener(this);

Related

when back to activity from click music notification when click to next music view not update

When I click music notification and run activity. When music change the content of textview changed, but view not update, but when I run an activity independently, everything works fine and view updated.
In musicService class:
PendingIntent contentPendingIntent = PendingIntent.getActivity
(this, 0, new Intent(this, MusicPlayer.class), 0);
builder.setContentTitle(mMedia.getTitleMedia())
.setContentText(mMedia.getSingerName())
.setContentIntent(contentPendingIntent)
.setSmallIcon(R.drawable.ic_notification)
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
.addAction(restartAction)
.addAction(playPauseAction)
.addAction(nextMusic)
.setDeleteIntent(MediaButtonReceiver.buildMediaButtonPendingIntent(getApplicationContext(), PlaybackStateCompat.ACTION_STOP));
and my activity class
public class MusicPlayer extends AppCompatActivity implements ServiceConnection, CacheListener, SeekBar.OnSeekBarChangeListener, Player.EventListener {
private SimpleExoPlayerView mPlayerView;
public PlayerService mPlayerService;
private boolean mBound;
//______________________________________________________________________________________________
VolleyRequestHelper volleyRequestHelper;
//______________________________________________________________________________________________
public static MusicPlayer instance;
public ImageView download;
TextView title;
TextView artist;
SeekBar progressBar;
ImageView circleImageView;
ImageView album_art_blurred;
PlayPauseButton mPlayPause;
public AppBarLayout appBarLayout;
private final VideoProgressUpdater updater = new VideoProgressUpdater();
public DownloadProgressView downloadProgressView;
//______________________________________________________________________________________________
TextView songElapsedTime;
TextView songDuration;
int positionOfMusic = 0;
public Media media;
boolean initAlbum = false;
boolean startService = false;
boolean checkChangeMediaDetails = true;
//______________________________________________________________________________________________
RecyclerView recyclerViewArtist;
SimilarSongsAdapter similarSongsAdapter;
public List<Media> similarSongsList = new ArrayList<>();
//______________________________________________________________________________________________
int songElapsed = 0;
int songDurationTime = 0;
int videoProgress = 0;
int mediaServiceRun = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_music_player);
instance = this;
volleyRequestHelper = VolleyRequestHelper.getInstance(getApplicationContext(), requestCompletedListener);
initView();
initRecyclerview();
Intent intent = getIntent();
mediaServiceRun = intent.getIntExtra("mediaServiceRun", 1);
if (mediaServiceRun == 1) {
Intent i = new Intent(this, PlayerService.class);
bindService(i, this, Context.BIND_AUTO_CREATE);
startService(i);
} else {
media = intent.getParcelableExtra("media");
switch (media.getCustomMediaType()) {
case "آهنگ آلبوم":
setMedia(media);
getAlbumTrack(media.getAlbumId());
break;
case "آلبوم":
initAlbum = true;
getAlbumTrack(media.getId());
break;
default:
setMedia(media);
Serach(media.getSingerName(), "1");
break;
}
selectMedia(media);
}
}
#Override
protected void onStart() {
super.onStart();
}
#Override
protected void onStop() {
super.onStop();
if (mBound) {
unbindService(this);
mBound = false;
}
}
#Override
protected void onResume() {
super.onResume();
updater.start();
}
#Override
public void onPause() {
super.onPause();
updater.stop();
}
//_________________________ServiceConnected_and_ServiceDisconnected_____________________________
#Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
PlayerService.MyBinder b = (PlayerService.MyBinder) iBinder;
mPlayerService = b.getService();
mPlayerView.setUseController(false);
mPlayerView.setPlayer(mPlayerService.getExoPlayer());
if (mediaServiceRun == 1) {
similarSongsList = mPlayerService.getOnlineList();
initView();
initRecyclerview();
musicChange(mPlayerService.getPlayingMedia());
} else {
mPlayerService.getExoPlayer().addListener(this);
mPlayerService.setPlayingMedia(positionOfMusic);
setMusicInService(media, mPlayerService.getPlayingMedia());
if (similarSongsList != null && similarSongsList.size() != 0) {
mPlayerService.setOnlineList(similarSongsList);
}
}
mBound = true;
}
#Override
public void onServiceDisconnected(ComponentName componentName) {
mBound = false;
}
//______________________________________________________________________________________________
//_______________________________________setMediaInView_________________________________________
public void setMedia(Media mediaL) {
media = mediaL;
bluredImage(mediaL.getCover());
Picasso.with(this).load(mediaL.getCover()).into(circleImageView);
title.setText(mediaL.getTitleMedia());
artist.setText(mediaL.getSingerName());
checkCachedState(mediaL.getStreamUrl());
checkChangeMediaDetails = false;
}
public void bluredImage(String IMAGE_URL) {
Target target = new Target() {
#Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
album_art_blurred.setImageBitmap(BlurImage.fastblur(bitmap, 1f, 50));
}
#Override
public void onBitmapFailed(Drawable errorDrawable) {
album_art_blurred.setImageResource(R.mipmap.ic_launcher);
}
#Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
};
album_art_blurred.setTag(target);
Picasso.with(this)
.load(IMAGE_URL)
.error(R.mipmap.ic_launcher)
.placeholder(R.mipmap.ic_launcher)
.into(target);
}
//______________________________________________________________________________________________
//______________________________________initView________________________________________________
public void initRecyclerview() {
recyclerViewArtist = (RecyclerView) findViewById(R.id.queue_recyclerview_horizontal);
recyclerViewArtist.setNestedScrollingEnabled(false);
recyclerViewArtist.setLayoutManager(new LinearLayoutManager(getApplicationContext()));
LinearLayoutManager horizontalLayoutManagaertwo
= new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false);
recyclerViewArtist.setLayoutManager(horizontalLayoutManagaertwo);
similarSongsAdapter = new SimilarSongsAdapter(this, similarSongsList, recyclerViewArtist);
recyclerViewArtist.setAdapter(similarSongsAdapter);
}
public void initView() {
mPlayerView = (SimpleExoPlayerView) findViewById(R.id.simpleExoPlayerView);
appBarLayout = (AppBarLayout) findViewById(R.id.appbar);
downloadProgressView = (DownloadProgressView) findViewById(R.id.downloadProgressView);
downloadProgressView.setPercentageColor(Color.parseColor("#ffffff"));
downloadProgressView.setDownloadedSizeColor(Color.parseColor("#ffffff"));
downloadProgressView.setTotalSizeColor(Color.parseColor("#ffffff"));
songElapsedTime = (TextView) findViewById(R.id.song_elapsed_time);
songDuration = (TextView) findViewById(R.id.song_duration);
progressBar = (SeekBar) findViewById(R.id.song_progress);
progressBar.setOnSeekBarChangeListener(this);
circleImageView = (ImageView) findViewById(R.id.album_art);
album_art_blurred = (ImageView) findViewById(R.id.album_art_blurred);
title = (TextView) findViewById(R.id.song_title);
artist = (TextView) findViewById(R.id.song_artist);
mPlayPause = (PlayPauseButton) findViewById(R.id.playpause);
download = (ImageView) findViewById(R.id.download);
if (SornaDownloadManager.inQueue) {
if (SornaDownloadManager.checkDownloadId(media.getId())) {
download.setVisibility(View.GONE);
downloadProgressView.show(SornaDownloadManager.lastDownloadID,
new DownloadProgressView.DownloadStatusListener() {
#Override
public void downloadFailed(int reason) {
SornaDownloadManager.PullFromQueue(media.getId());
download.setVisibility(View.VISIBLE);
}
#Override
public void downloadSuccessful() {
SornaDownloadManager.PullFromQueue(media.getId());
download.setVisibility(View.VISIBLE);
}
#Override
public void downloadCancelled() {
SornaDownloadManager.PullFromQueue(media.getId());
download.setVisibility(View.VISIBLE);
}
});
}
}
}
//______________________________________________________________________________________________
//_________________________________Cache_and_UpdateProgressBar__________________________________
private void checkCachedState(String url) {
HttpProxyCacheServer proxy = TimberApp.getProxy(this);
boolean fullyCached = proxy.isCached(url);
if (fullyCached) {
progressBar.setSecondaryProgress(100);
}
proxy.registerCacheListener(this, url);
}
private void updateVideoProgress() {
if (mPlayerService != null)
try {
videoProgress = (int) (mPlayerService.getExoPlayer().getCurrentPosition() * 100 / mPlayerService.getExoPlayer().getDuration());
} catch (Exception e) {
}
progressBar.setProgress(videoProgress);
}
private final class VideoProgressUpdater extends Handler {
public void start() {
sendEmptyMessage(0);
}
public void stop() {
removeMessages(0);
}
#Override
public void handleMessage(Message msg) {
updateVideoProgress();
sendEmptyMessageDelayed(0, 500);
if (mPlayerService != null) {
try {
songElapsed = (int) mPlayerService.getExoPlayer().getCurrentPosition();
songDurationTime = (int) mPlayerService.getExoPlayer().getDuration();
} catch (Exception e) {
}
}
songElapsedTime.setText(millisecondsTOminutes.milliSecondsToTimer(songElapsed));
songDuration.setText(millisecondsTOminutes.milliSecondsToTimer(songDurationTime));
}
}
#Override
public void onCacheAvailable(File cacheFile, String url, int percentsAvailable) {
progressBar.setSecondaryProgress(percentsAvailable);
}
#Override
public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
void seekVideo() {
int videoPosition = (int) (mPlayerService.getExoPlayer().getDuration() * progressBar.getProgress() / 100);
mPlayerService.getExoPlayer().seekTo(videoPosition);
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
seekVideo();
songElapsedTime.setText(millisecondsTOminutes.milliSecondsToTimer(mPlayerService.getExoPlayer().getCurrentPosition()) + "");
}
//______________________________________________________________________________________________
//____________________________________setButtonsFuction_________________________________________
public void setFunc(View v) {
switch (v.getId()) {
case R.id.playpause:
if (!mPlayPause.isPlayed()) {
setPlayButton(true);
if (!startService) {
setStopService();
setStartService();
onlinePlay(media.getId());
} else {
mPlayerService.playTrack();
}
} else {
setPlayButton(false);
mPlayerService.pauseTrack();
}
break;
case R.id.next:
mPlayerService.nextTrack();
//positionOfMusic = mPlayerService.getPlayingMedia();
break;
case R.id.previous:
mPlayerService.previousTrack();
//positionOfMusic = mPlayerService.getPlayingMedia();
break;
case R.id.download:
showPopup(media);
break;
case R.id.share:
share.shareTrack(media, this);
break;
}
}
public void showPopup(final Media media) {
View popupView = LayoutInflater.from(this).inflate(R.layout.popup_layout, null);
final PopupWindow popupWindow = new PopupWindow(popupView, WindowManager.LayoutParams.MATCH_PARENT
, WindowManager.LayoutParams.MATCH_PARENT);
popupWindow.setOutsideTouchable(false);
popupWindow.setFocusable(true);
popupWindow.showAtLocation(popupView, Gravity.CENTER, 1, 1);
Button dnlow = (Button) popupView.findViewById(R.id.dnlow);
Button dnhigh = (Button) popupView.findViewById(R.id.dnhigh);
if (media.getDownloadLinksList128().matches("noLink"))
dnlow.setVisibility(View.GONE);
if (media.getDownloadLinksList320().matches("noLink"))
dnhigh.setVisibility(View.GONE);
dnlow.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
SornaDownloadManager sornaDownloadManager = SornaDownloadManager.getInstance(getApplicationContext());
long downloadID = sornaDownloadManager.AddForDownload(media.getDownloadLinksList128(),
media.getTitleMedia() + "-" + media.getSingerName(), media.getId());
downloadProgressView.show(downloadID, new DownloadProgressView.DownloadStatusListener() {
#Override
public void downloadFailed(int reason) {
}
#Override
public void downloadSuccessful() {
SornaDownloadManager.PullFromQueue(media.getId());
download.setVisibility(View.VISIBLE);
}
#Override
public void downloadCancelled() {
SornaDownloadManager.PullFromQueue(media.getId());
download.setVisibility(View.VISIBLE);
}
});
popupWindow.dismiss();
}
});
dnhigh.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
SornaDownloadManager sornaDownloadManager = SornaDownloadManager.getInstance(getApplicationContext());
long downloadID = sornaDownloadManager.AddForDownload(media.getDownloadLinksList320(),
media.getTitleMedia() + "-" + media.getSingerName(), media.getId());
downloadProgressView.show(downloadID, new DownloadProgressView.DownloadStatusListener() {
#Override
public void downloadFailed(int reason) {
}
#Override
public void downloadSuccessful() {
SornaDownloadManager.PullFromQueue(media.getId());
download.setVisibility(View.VISIBLE);
}
#Override
public void downloadCancelled() {
SornaDownloadManager.PullFromQueue(media.getId());
download.setVisibility(View.VISIBLE);
}
});
popupWindow.dismiss();
}
});
popupWindow.showAsDropDown(popupView, 0, 0);
}
//______________________________________________________________________________________________
//__________________________________GetDataFromServer___________________________________________
public void Serach(String searchQuery, String page) {
updateData();
volleyRequestHelper.RequestFetchSearchMedia
(constantsURL.REQUEST_FETCH_SIMILAR_SONGS, searchQuery, page, false);
}
public void getAlbumTrack(String albumId) {
updateData();
volleyRequestHelper.RequestFetchAlbumTrack
(constantsURL.REQUEST_FETCH_ALBUM_TRACKS, albumId, false);
}
public void selectMedia(final Media media) {
if (!constants.refLogId.matches(""))
volleyRequestHelper.requestSetLog
(constantsURL.REQUEST_SET_LOG, "selectSearchResult", media.getId(), constants.refLogId, false);
}
public void onlinePlay(final String mediaid) {
volleyRequestHelper.requestSetLog
(constantsURL.REQUEST_SET_LOG, "onlinePlay", mediaid, constants.refLogId, false);
}
public void updateData() {
similarSongsAdapter.notifyDataSetChanged();
similarSongsAdapter.setLoaded();
}
public void parseJson(String response, List<Media> arrayList) {
try {
JsonParser parser = new JsonParser();
JsonElement json = parser.parse(response);
JSONObject jsonObject = new JSONObject(String.valueOf(json));
JSONArray arrey = jsonObject.getJSONArray("result");
if (!media.getCustomMediaType().matches("آلبوم"))
arrayList.add(media);
for (int i = 0; i < arrey.length(); i++) {
JSONObject j = arrey.getJSONObject(i);
Media mdia = new Media(j);
if (!media.getId().matches(mdia.getId()) && !mdia.getCustomMediaType().matches("آلبوم"))
arrayList.add(mdia);
}
} catch (Exception e) {
}
if (mPlayerService != null) {
mPlayerService.setOnlineList(similarSongsList);
}
}
private VolleyRequestHelper.OnRequestCompletedListener requestCompletedListener =
new VolleyRequestHelper.OnRequestCompletedListener() {
#Override
public void onRequestCompleted(String requestName, boolean status,
String response, String errorMessage) {
//homeView.hideProgress();
switch (requestName) {
case "SIMILAR_SONGS":
if (status) {
parseJson(response, similarSongsList);
updateData();
}
break;
case "ALBUM_TRACKS":
if (status) {
parseJson(response, similarSongsList);
updateData();
if (initAlbum) {
setMedia(similarSongsList.get(0));
}
}
break;
}
}
};
//_______________________________________EXOPLAYER______________________________________________
#Override
public void onTimelineChanged(Timeline timeline, Object manifest) {
}
#Override
public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) {
if (checkChangeMediaDetails) {
musicChange(mPlayerService.getPlayingMedia());
} else checkChangeMediaDetails = true;
}
#Override
public void onLoadingChanged(boolean isLoading) {
}
#Override
public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {
if ((playbackState == Player.STATE_READY) && playWhenReady) {
if (!mPlayPause.isPlayed()) {
setPlayButton(true);
}
} else if ((playbackState == Player.STATE_READY)) {
setPlayButton(false);
} else if (playbackState == Player.STATE_ENDED) {
}
}
#Override
public void onRepeatModeChanged(int repeatMode) {
}
#Override
public void onPlayerError(ExoPlaybackException error) {
}
#Override
public void onPositionDiscontinuity() {
}
#Override
public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) {
}
//______________________________________________________________________________________________
public void setStartService() {
Intent intent = new Intent(this, PlayerService.class);
bindService(intent, this, Context.BIND_AUTO_CREATE);
startService(intent);
startService = true;
}
public void setStopService() {
Intent intentStop = new Intent(this, PlayerService.class);
stopService(intentStop);
}
public void setPlayButton(boolean playButton) {
mPlayPause.setPlayed(playButton);
mPlayPause.startAnimation();
}
public void setMusicInService(Media mMedia, int position) {
positionOfMusic = position;
if (mPlayerService != null) {
mPlayerService.setPlayMedia(mMedia, position);
} else {
setStartService();
setMedia(mMedia);
}
//positionOfMusic = position;
/*if (mPlayerService != null) {
mPlayerService.setMediaUri(mMedia.getStreamUrl());
mPlayerService.setMedia(mMedia);
mPlayerService.setPlayingMedia(position);
mPlayerService.preparePlayer();
} else {
positionOfMusic = position;
setStartService();
setMedia(mMedia);
}*/
}
public void musicChange(int newPosition) {
if (similarSongsList != null && similarSongsList.size() != 0) {
setMedia(similarSongsList.get(newPosition));
similarSongsAdapter.setPlayPosition(newPosition);
similarSongsAdapter.notifyDataSetChanged();
}
}
}
#Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder)
{
PlayerService.MyBinder b = (PlayerService.MyBinder) iBinder;
mPlayerService = b.getService();
mPlayerView.setUseController(false);
mPlayerView.setPlayer(mPlayerService.getExoPlayer());
if (mediaServiceRun == 1) {
similarSongsList = mPlayerService.getOnlineList();
initView();
initRecyclerview();
musicChange(mPlayerService.getPlayingMedia());
} else {
mPlayerService.getExoPlayer().addListener(this);
mPlayerService.setPlayingMedia(positionOfMusic);
setMusicInService(media, mPlayerService.getPlayingMedia());
if (similarSongsList != null && similarSongsList.size() != 0) {
mPlayerService.setOnlineList(similarSongsList);
}
}
mBound = true;
}

Clear all list item on button click

I have created simple chatting application and it contains some ListView which handles all chat messages, but every ListView is defined in another class. I want to clear my list items from Clear Chat from an overflow menu, which is present in main activity. How can I achieve this?
Here is my main activity called WiFiServiceDiscoveryActivity:
public class WiFiServiceDiscoveryActivity extends AppCompatActivity implements
DeviceClickListener, Handler.Callback, MessageTarget,
ConnectionInfoListener {
public static final String TAG = "wifidirectdemo";
// TXT RECORD properties
public static final String TXTRECORD_PROP_AVAILABLE = "available";
public static final String SERVICE_INSTANCE = " ";
public static final String SERVICE_REG_TYPE = "_presence._tcp";
public static final int MESSAGE_READ = 0x400 + 1;
public static final int MY_HANDLE = 0x400 + 2;
private WifiP2pManager manager;
static final int SERVER_PORT = 4545;
private final IntentFilter intentFilter = new IntentFilter();
private Channel channel;
private BroadcastReceiver receiver = null;
private WifiP2pDnsSdServiceRequest serviceRequest;
private Handler handler = new Handler(this);
private WiFiChatFragment chatFragment;
private WiFiDirectServicesList servicesList;
private TextView statusTxtView;
Toolbar toolbar;
private String friend;
private WiFiP2pService service;
WiFiChatFragment listView;
WiFiChatFragment.ChatMessageAdapter a;
public Handler getHandler() {
return handler;
}
public void setHandler(Handler handler) {
this.handler = handler;
}
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
toolbar=(Toolbar)findViewById(R.id.toolbar);
statusTxtView = (TextView) findViewById(R.id.status_text);
intentFilter.addAction(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION);
intentFilter.addAction(WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION);
intentFilter
.addAction(WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION);
intentFilter
.addAction(WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION);
manager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE);
channel = manager.initialize(this, getMainLooper(), null);
startRegistrationAndDiscovery();
servicesList = new WiFiDirectServicesList();
getFragmentManager().beginTransaction()
.add(R.id.container_root, servicesList, "services").commit();
setSupportActionBar(toolbar);
}
#Override
protected void onRestart() {
Fragment frag = getFragmentManager().findFragmentByTag("services");
if (frag != null) {
getFragmentManager().beginTransaction().remove(frag).commit();
}
super.onRestart();
}
#Override
protected void onStop() {
if (manager != null && channel != null) {
manager.removeGroup(channel, new ActionListener() {
#Override
public void onFailure(int reasonCode) {
Log.d(TAG, "Disconnect failed. Reason :" + reasonCode);
}
#Override
public void onSuccess() {
}
});
}
super.onStop();
}
/**
* Registers a local service and then initiates a service discovery
*/
private void startRegistrationAndDiscovery() {
Map<String, String> record = new HashMap<String, String>();
record.put(TXTRECORD_PROP_AVAILABLE, "visible");
WifiP2pDnsSdServiceInfo service = WifiP2pDnsSdServiceInfo.newInstance(
SERVICE_INSTANCE, SERVICE_REG_TYPE, record);
manager.addLocalService(channel, service, new ActionListener() {
#Override
public void onSuccess() {
//appendStatus("Added Local Service");
}
#Override
public void onFailure(int error) {
// appendStatus("Failed to add a service");
}
});
discoverService();
}
private void discoverService() {
/*
* Register listeners for DNS-SD services. These are callbacks invoked
* by the system when a service is actually discovered.
*/
manager.setDnsSdResponseListeners(channel,
new DnsSdServiceResponseListener() {
#Override
public void onDnsSdServiceAvailable(String instanceName,
String registrationType, WifiP2pDevice srcDevice) {
// A service has been discovered. Is this our app?
if (instanceName.equalsIgnoreCase(SERVICE_INSTANCE)) {
// update the UI and add the item the discovered
// device.
WiFiDirectServicesList fragment = (WiFiDirectServicesList) getFragmentManager()
.findFragmentByTag("services");
if (fragment != null) {
WiFiDevicesAdapter adapter = ((WiFiDevicesAdapter) fragment
.getListAdapter());
service = new WiFiP2pService();
service.device = srcDevice;
service.instanceName = instanceName;
service.serviceRegistrationType = registrationType;
adapter.add(service);
adapter.notifyDataSetChanged();
Log.d(TAG, "onBonjourServiceAvailable "
+ instanceName);
}
}
}
}, new DnsSdTxtRecordListener() {
/**
* A new TXT record is available. Pick up the advertised
* buddy name.
*/
#Override
public void onDnsSdTxtRecordAvailable(
String fullDomainName, Map<String, String> record,
WifiP2pDevice device) {
Log.d(TAG,
device.deviceName + " is "
+ record.get(TXTRECORD_PROP_AVAILABLE));
}
});
// After attaching listeners, create a service request and initiate
// discovery.
serviceRequest = WifiP2pDnsSdServiceRequest.newInstance();
manager.addServiceRequest(channel, serviceRequest,
new ActionListener() {
#Override
public void onSuccess() {
// appendStatus("Added service discovery request");
}
#Override
public void onFailure(int arg0) {
appendStatus("Failed adding service discovery request");
}
});
manager.discoverServices(channel, new ActionListener() {
#Override
public void onSuccess() {
//appendStatus("Service discovery initiated");
}
#Override
public void onFailure(int arg0) {
appendStatus("Service discovery failed");
}
});
}
#Override
public void connectP2p(WiFiP2pService service) {
WifiP2pConfig config = new WifiP2pConfig();
config.deviceAddress = service.device.deviceAddress;
config.wps.setup = WpsInfo.PBC;
if (serviceRequest != null)
manager.removeServiceRequest(channel, serviceRequest,
new ActionListener() {
#Override
public void onSuccess() {
}
#Override
public void onFailure(int arg0) {
}
});
manager.connect(channel, config, new ActionListener() {
#Override
public void onSuccess() {
appendStatus("Connecting to service");
}
#Override
public void onFailure(int errorCode) {
appendStatus("Failed connecting to service");
}
});
}
#Override
public boolean handleMessage(Message msg) {
switch (msg.what) {
case MESSAGE_READ:
byte[] readBuf = (byte[]) msg.obj;
// construct a string from the valid bytes in the buffer
String readMessage = new String(readBuf, 0, msg.arg1);
Log.d(TAG, readMessage);
(chatFragment).pushMessage("Friend :" + readMessage);
break;
case MY_HANDLE:
Object obj = msg.obj;
(chatFragment).setChatManager((ChatManager) obj);
}
return true;
}
#Override
public void onResume() {
super.onResume();
receiver = new HomeActivity(manager, channel, this);
registerReceiver(receiver, intentFilter);
}
#Override
public void onPause() {
super.onPause();
unregisterReceiver(receiver);
}
#Override
public void onConnectionInfoAvailable(WifiP2pInfo p2pInfo) {
Thread handler = null;
if (p2pInfo.isGroupOwner) {
Log.d(TAG, "Connected as group owner");
try {
handler = new GroupOwnerSocketHandler(
((MessageTarget) this).getHandler());
handler.start();
} catch (IOException e) {
Log.d(TAG,
"Failed to create a server thread - " + e.getMessage());
return;
}
} else {
Log.d(TAG, "Connected as peer");
handler = new ClientSocketHandler(
((MessageTarget) this).getHandler(),
p2pInfo.groupOwnerAddress);
handler.start();
}
chatFragment = new WiFiChatFragment();
getFragmentManager().beginTransaction()
.replace(R.id.container_root, chatFragment).commit();
statusTxtView.setVisibility(View.GONE);
}
public void appendStatus(String status) {
String current = statusTxtView.getText().toString();
statusTxtView.setText(current + "\n" + status);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_settings:
Toast.makeText(this, "Settings selected", Toast.LENGTH_SHORT)
.show();
break;
case R.id.clean:
Toast.makeText(this, "Clear Chat", Toast.LENGTH_SHORT).show();
break;
default:
break;
}
return true;
}
}
And another class which has the ListView called WiFiChatFragment:
public class WiFiChatFragment extends Fragment {
private View view;
private ChatManager chatManager;
private TextView chatLine;
private ListView listView;
ChatMessageAdapter adapter = null;
private List<String> items = new ArrayList<String>();
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_chat, container, false);
chatLine = (TextView) view.findViewById(R.id.txtChatLine);
listView = (ListView) view.findViewById(android.R.id.list);
adapter = new ChatMessageAdapter(getActivity(), android.R.id.text1,
items);
listView.setAdapter(adapter);
view.findViewById(R.id.button1).setOnClickListener(
new View.OnClickListener() {
#Override
public void onClick(View arg0) {
if (chatManager != null) {
chatManager.write(chatLine.getText().toString()
.getBytes());
pushMessage("Me: " + chatLine.getText().toString());
chatLine.setText("");
chatLine.clearFocus();
}
}
});
return view;
}
public interface MessageTarget {
public Handler getHandler();
}
public void setChatManager(ChatManager obj) {
chatManager = obj;
}
public void pushMessage(String readMessage) {
adapter.add(readMessage);
adapter.notifyDataSetChanged();
}
/**
* ArrayAdapter to manage chat messages.
*/
public class ChatMessageAdapter extends ArrayAdapter<String> {
List<String> messages = null;
public ChatMessageAdapter(Context context, int textViewResourceId,
List<String> items) {
super(context, textViewResourceId, items);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater) getActivity()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(android.R.layout.simple_list_item_1, null);
}
String message = items.get(position);
if (message != null && !message.isEmpty()) {
TextView nameText = (TextView) v
.findViewById(android.R.id.text1);
if (nameText != null) {
nameText.setText(message);
if (message.startsWith("Me: ")) {
nameText.setBackgroundResource(R.drawable.bubble_b );
nameText.setTextAppearance(getActivity(),
R.style.normalText);
} else {
nameText.setBackgroundResource(R.drawable.bubble_a );
nameText.setTextAppearance(getActivity(),
R.style.boldText);
}
}
}
return v;
}
}
}
Hey Adesh you could do this when the overflow item is clicked:
Call setListAdapter() again. This time with an empty ArrayList.
Hope it helps !

sinch conference call hung up right after it starts

I managed to start a conference call cut it closes right after I start it with HUNG_UP cause and I got this in my log:
11-03 17:28:08.940: E/sinch-android-rtc(19101): peermediaconnection: virtual void rebrtc::SetSDPObserver::OnFailure(const string&)Failed to set remote answer sdp: Offer and answer descriptions m-lines are not matching. Rejecting answer.
11-03 17:28:08.940: E/sinch-android-rtc(19101): mxp: Failed to set remote answer sdp: Offer and answer descriptions m-lines are not matching. Rejecting answer.
can anybody help me solve this please?
Edit:
my scenario is when a user clicks the call button I ask him if he wants to start a new call or join an already created one.
I managed to make my code from this question (Sinch conference call error) work as my GroupService class had some bugs.
I start my call like this:
Intent intent1 = new Intent(CreateGroupCallActivity.this,SinchClientService.class);
intent1.setAction(SinchClientService.ACTION_GROUP_CALL);
String id = String.valueOf(uid) + "-" + call_id.getText().toString();
intent1.putExtra(SinchClientService.INTENT_EXTRA_ID,id);
startService(intent1);
and in my SinchClientService:
if(intent.getAction().equals(ACTION_GROUP_CALL))
{
String id = intent.getStringExtra(INTENT_EXTRA_ID);
if(id != null)
groupCall(id);
}
public void groupCall(String id) {
if (mCallClient != null) {
Call call = mCallClient.callConference(id);
CurrentCall.currentCall = call;
Log.d("call", "entered");
Intent intent = new Intent(this, GroupCallService.class);
startService(intent);
}
}
nd here is my GroupCallService
public class GroupCallScreenActivity extends AppCompatActivity implements ServiceConnection {
private SinchClientService.MessageServiceInterface mMessageService;
private GroupCallService.GroupCallServiceInterface mCallService;
private UpdateReceiver mUpdateReceiver;
private ImageButton mEndCallButton;
private TextView mCallDuration;
private TextView mCallState;
private TextView mCallerName;
//private TextView locationview;
private ImageView user_pic;
private long mCallStart;
private Timer mTimer;
private UpdateCallDurationTask mDurationTask;
ImageButton chat;
ImageButton speaker;
ImageButton mic;
boolean speaker_on = false;
boolean mic_on = true;
PowerManager mPowerManager;
WakeLock mProximityWakeLock;
final static int PROXIMITY_SCREEN_OFF_WAKE_LOCK = 32;
com.galsa.example.main.ImageLoader mImageLoader;
/*String location;
String longitude;
String latitude;*/
private class UpdateCallDurationTask extends TimerTask {
#Override
public void run() {
GroupCallScreenActivity.this.runOnUiThread(new Runnable() {
#Override
public void run() {
updateCallDuration();
}
});
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
setContentView(R.layout.callscreen);
doBind();
mCallDuration = (TextView) findViewById(R.id.callDuration);
mCallerName = (TextView) findViewById(R.id.remoteUser);
mCallState = (TextView) findViewById(R.id.callState);
//locationview = (TextView) findViewById(R.id.location);
mEndCallButton = (ImageButton) findViewById(R.id.hangupButton);
chat = (ImageButton) findViewById(R.id.chat);
chat.setVisibility(View.GONE);
speaker = (ImageButton) findViewById(R.id.speaker);
mic = (ImageButton) findViewById(R.id.mic);
user_pic = (ImageView) findViewById(R.id.user_pic);
/*location = getIntent().getStringExtra("location");
longitude = getIntent().getStringExtra("longitde");
latitude = getIntent().getStringExtra("latitude");
locationview.setText(location);*/
mImageLoader = new com.galsa.example.main.ImageLoader(GroupCallScreenActivity.this, R.dimen.caller_image_height);
//mCallerName.setText(mCall.getRemoteUserId());
mPowerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
mProximityWakeLock = mPowerManager.newWakeLock(PROXIMITY_SCREEN_OFF_WAKE_LOCK, Utils.TAG);
/*chat.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(GroupCallScreenActivity.this, MessagingActivity.class);
intent.putExtra(SinchClientService.INTENT_EXTRA_ID, mCallService.getCallerId());
intent.putExtra(SinchClientService.INTENT_EXTRA_NAME, mCallService.getCallerName());
startActivity(intent);
}
});*/
speaker.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(speaker_on)
{
mMessageService.speakerOn(speaker_on);
speaker_on = false;
speaker.setImageResource(R.drawable.speaker_off);
}
else
{
mMessageService.speakerOn(speaker_on);
speaker_on = true;
speaker.setImageResource(R.drawable.speaker_on);
}
}
});
mic.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(mic_on)
{
mMessageService.micOn(mic_on);
mic_on = false;
mic.setImageResource(R.drawable.mic_off);
}
else
{
mMessageService.micOn(mic_on);
mic_on = true;
mic.setImageResource(R.drawable.mic_on);
}
}
});
mEndCallButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mCallService.endCall();
}
});
mCallStart = System.currentTimeMillis();
}
private void doBind() {
Intent intent = new Intent(this, SinchClientService.class);
bindService(intent, this, BIND_AUTO_CREATE);
intent = new Intent(this, GroupCallService.class);
bindService(intent, this, BIND_AUTO_CREATE);
}
private void doUnbind() {
unbindService(this);
}
#Override
protected void onStart() {
super.onStart();
mUpdateReceiver = new UpdateReceiver();
IntentFilter filter = new IntentFilter();
filter.addAction(GroupCallService.ACTION_FINISH_CALL_ACTIVITY);
filter.addAction(GroupCallService.ACTION_CHANGE_AUDIO_STREAM);
filter.addAction(GroupCallService.ACTION_UPDATE_CALL_STATE);
LocalBroadcastManager.getInstance(this).registerReceiver(mUpdateReceiver, filter);
}
#Override
public void onResume() {
super.onResume();
if(mProximityWakeLock != null && !mProximityWakeLock.isHeld()){
mProximityWakeLock.acquire();
}
mTimer = new Timer();
mDurationTask = new UpdateCallDurationTask();
mTimer.schedule(mDurationTask, 0, 500);
}
#Override
public void onPause() {
super.onPause();
if(isFinishing() && mProximityWakeLock != null && mProximityWakeLock.isHeld()){
mProximityWakeLock.release();
}
mDurationTask.cancel();
}
#Override
protected void onStop() {
super.onStop();
if(isFinishing() && mProximityWakeLock != null && mProximityWakeLock.isHeld()){
mProximityWakeLock.release();
}
if(mUpdateReceiver != null)
{
LocalBroadcastManager.getInstance(this).unregisterReceiver(mUpdateReceiver);
mUpdateReceiver = null;
}
}
#Override
public void onBackPressed() {
// User should exit activity by ending call, not by going back.
}
private void updateCallDuration() {
mCallDuration.setText(Utils.formatTimespan(System.currentTimeMillis() - mCallStart));
}
#Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
if(iBinder instanceof GroupCallService.GroupCallServiceInterface)
{
mCallService = (GroupCallService.GroupCallServiceInterface) iBinder;
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
ActionBar actionBar = getSupportActionBar();
if(mCallService.getCallerName() != null)
actionBar.setTitle(mCallService.getCallerName());
else
actionBar.setTitle("Group call");
actionBar.setIcon(R.drawable.callscreen);
if(mCallService.getCallerName() != null)
mCallerName.setText(mCallService.getCallerName());
else
mCallerName.setText("Group call");
mCallState.setText(mCallService.getCallState());
String pic = ChatDatabaseHandler.getInstance(this).getFriendpic(mCallService.getCallerId());
mImageLoader.displayImage(UserFunctions.hostImageDownloadURL + pic, user_pic);
}
else
mMessageService = (SinchClientService.MessageServiceInterface) iBinder;
mMessageService.enableMic();
mMessageService.disableSpeaker();
}
#Override
public void onServiceDisconnected(ComponentName componentName) {
mMessageService = null;
mCallService = null;
}
#Override
public void onDestroy() {
if(mUpdateReceiver != null)
{
LocalBroadcastManager.getInstance(this).unregisterReceiver(mUpdateReceiver);
mUpdateReceiver = null;
}
doUnbind();
super.onDestroy();
}
private class UpdateReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
if(GroupCallService.ACTION_FINISH_CALL_ACTIVITY.equals(intent.getAction()))
{
finish();
}
else if(GroupCallService.ACTION_CHANGE_AUDIO_STREAM.equals(intent.getAction()))
{
setVolumeControlStream(intent.getIntExtra("STREAM_TYPE", AudioManager.USE_DEFAULT_STREAM_TYPE));
}
else if(GroupCallService.ACTION_UPDATE_CALL_STATE.equals(intent.getAction()))
{
mCallState.setText(intent.getStringExtra("STATE"));
}
}
}
}
I start the call with the same way whether the user will start a new call or join a created one.

Android back to main activity from MusicService notification

I'm working on a music player for android and i'm stuck at this problem.
By now i can play a song with musicservice and send it to background, i also display a notification with current playing song.
What i need is to re-open the main activity from the song notification and continue playing the song, it actually starts the desired activity but the music service is re-created and it stops the current playing song.
Here is my code.
MusicService.java
public class MusicService extends Service implements
MediaPlayer.OnPreparedListener,
MediaPlayer.OnErrorListener,
MediaPlayer.OnCompletionListener {
private final IBinder musicBind = new MusicBinder();
//media player
private MediaPlayer player;
//song list
private ArrayList<SongModel> songs;
//current position
private int songPosition;
public MusicService() {
}
public void onCreate() {
//create the service
super.onCreate();
//initialize position
songPosition = 0;
//create player
player = new MediaPlayer();
initMusicPlayer();
}
public void initMusicPlayer() {
//set player properties
player.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK);
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
player.setOnPreparedListener(this);
player.setOnCompletionListener(this);
player.setOnErrorListener(this);
}
public void setList(ArrayList<SongModel> theSongs) {
songs = theSongs;
}
public class MusicBinder extends Binder {
public MusicService getService() {
return MusicService.this;
}
}
#Override
public IBinder onBind(Intent intent) {
return musicBind;
}
#Override
public boolean onUnbind(Intent intent) {
player.stop();
player.release();
return false;
}
public int getPosition() {
return player.getCurrentPosition();
}
public int getCurrenListPosition() {
return songPosition;
}
public int getDuration() {
return player.getDuration();
}
public boolean isPlaying() {
return player.isPlaying();
}
public void pausePlayer() {
player.pause();
}
public void stopPlayer() {
player.stop();
}
public void seekToPosition(int posn) {
player.seekTo(posn);
}
public void start() {
player.start();
}
public void playSong() {
try {
//play a song
player.reset();
SongModel playSong = songs.get(songPosition);
String trackUrl = playSong.getFileUrl();
player.setDataSource(trackUrl);
player.prepareAsync();
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
public void onCompletion(MediaPlayer mp) {
if (mp.getCurrentPosition() == 0) {
mp.reset();
}
}
#Override
public boolean onError(MediaPlayer mp, int what, int extra) {
mp.reset();
return false;
}
#Override
public void onPrepared(MediaPlayer mp) {
//start playback
mp.start();
SongModel playingSong = songs.get(songPosition);
Intent intent = new Intent(this, NavDrawerMainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
Notification.Builder builder = new Notification.Builder(this);
builder.setContentIntent(pendingIntent)
.setSmallIcon(R.drawable.ic_action_playing)
.setTicker(playingSong.getTitle())
.setOngoing(true)
.setContentTitle(playingSong.getTitle())
.setContentText(playingSong.getArtistName());
Notification notification = builder.build();
startForeground((int) playingSong.getSongId(), notification);
}
#Override
public void onDestroy() {
stopForeground(true);
}
public void setSong(int songIndex) {
songPosition = songIndex;
}
}
DiscoverSongsFragment.java
public class DiscoverSongsFragment extends Fragment
implements MediaController.MediaPlayerControl {
JazzyGridView songsContainer;
SongsHelper songsHelper;
SongsAdapter songsAdapter;
ArrayList<SongModel> songsArrayList;
ConnectionState connectionState;
Context mContext;
private static View rootView;
SongModel currentSong;
SeekBar nowPlayingSeekBar;
final Handler handler = new Handler();
// this value contains the song duration in milliseconds.
// Look at getDuration() method in MediaPlayer class
int mediaFileLengthInMilliseconds;
View nowPlayingLayout;
boolean nowPlayingLayoutVisible;
TextView nowPlayingTitle;
TextView nowPlayingArtist;
ImageButton nowPlayingCover;
ImageButton nowPlayingStop;
private MusicService musicService;
private Intent playIntent;
private boolean musicBound = false;
private boolean playbackPaused = false;
private int mCurrentTransitionEffect = JazzyHelper.SLIDE_IN;
public static DiscoverSongsFragment newInstance() {
return new DiscoverSongsFragment();
}
public DiscoverSongsFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.fragment_discover_songs, container, false);
mContext = rootView.getContext();
setupViews(rootView);
return rootView;
}
#Override
public void onStart() {
super.onStart();
if (playIntent == null) {
playIntent = new Intent(mContext, MusicService.class);
mContext.bindService(playIntent, musicConnection, Context.BIND_AUTO_CREATE);
mContext.startService(playIntent);
}
}
#Override
public void onResume() {
super.onResume();
if (isPlaying()) {
showNowPlayingLayout();
primarySeekBarProgressUpdater();
}
}
#Override
public void onDestroy() {
mContext.stopService(playIntent);
musicService = null;
super.onDestroy();
}
private void hideNowPlayingLayout() {
nowPlayingLayoutVisible = false;
nowPlayingLayout.setVisibility(View.GONE);
Animation animationFadeIn = AnimationUtils.loadAnimation(mContext, R.anim.fade_out);
nowPlayingLayout.startAnimation(animationFadeIn);
}
private void showNowPlayingLayout() {
nowPlayingLayoutVisible = true;
nowPlayingLayout.setVisibility(View.VISIBLE);
Animation animationFadeIn = AnimationUtils.loadAnimation(mContext, R.anim.fade_in);
nowPlayingLayout.startAnimation(animationFadeIn);
}
private void setupViews(View rootView) {
songsHelper = new SongsHelper();
songsArrayList = new ArrayList<SongModel>();
connectionState = new ConnectionState(mContext);
songsAdapter = new SongsAdapter(mContext, songsArrayList);
nowPlayingLayout = rootView.findViewById(R.id.nowPlayingLayout);
nowPlayingLayout.setVisibility(View.GONE);
nowPlayingLayoutVisible = false;
songsContainer = (JazzyGridView) rootView.findViewById(R.id.songsContainerView);
songsContainer.setTransitionEffect(mCurrentTransitionEffect);
songsContainer.setAdapter(songsAdapter);
songsContainer.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
musicService.setSong(position);
musicService.playSong();
if (playbackPaused) {
playbackPaused = false;
}
currentSong = songsArrayList.get(position);
// gets the song length in milliseconds from URL
mediaFileLengthInMilliseconds = getDuration();
if (currentSong != null) {
nowPlayingTitle.setText(currentSong.getTitle());
nowPlayingArtist.setText(currentSong.getArtistName());
nowPlayingCover.setImageBitmap(currentSong.getCoverArt());
}
primarySeekBarProgressUpdater();
if (!nowPlayingLayoutVisible) {
showNowPlayingLayout();
}
}
});
nowPlayingSeekBar = (SeekBar) rootView.findViewById(R.id.nowPlayingSeekbar);
nowPlayingSeekBar.setMax(99);
nowPlayingTitle = (TextView) rootView.findViewById(R.id.nowPlayingTitle);
nowPlayingArtist = (TextView) rootView.findViewById(R.id.nowPlayingArtist);
nowPlayingStop = (ImageButton) rootView.findViewById(R.id.nowPlayingStop);
nowPlayingStop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (isPlaying()) {
currentSong = null;
playbackPaused = false;
musicService.stopPlayer();
mediaFileLengthInMilliseconds = 0;
nowPlayingSeekBar.setProgress(0);
hideNowPlayingLayout();
}
}
});
nowPlayingCover = (ImageButton) rootView.findViewById(R.id.nowPlayingCover);
nowPlayingCover.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
Intent intent = new Intent(mContext, SongDetailsActivity.class);
intent.putExtra("Title", currentSong.getTitle());
intent.putExtra("Artist", currentSong.getArtistName());
intent.putExtra("Album", currentSong.getAlbumName());
intent.putExtra("Genre", currentSong.getGenre());
intent.putExtra("CoverUrl", currentSong.getCoverArtUrl());
startActivity(intent);
} catch (Exception e) {
e.printStackTrace();
}
}
});
getSongs();
hideNowPlayingLayout();
}
private void getSongs() {
if (!connectionState.isConnectedToInternet()) {
}
songsAdapter.clear();
String songsUrl = Constants.getAPI_SONGS_URL();
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(songsUrl, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray jsonArray) {
if (jsonArray != null) {
for (int i = 0; i < jsonArray.length(); i++) {
try {
JSONObject jsonObject = jsonArray.getJSONObject(i);
SongModel song = songsHelper.getSongFromJson(jsonObject);
songsAdapter.add(song);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
}
});
AppController.getInstance().addToRequestQueue(jsonArrayRequest);
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
#Override
public void onDetach() {
super.onDetach();
}
/**
* Method which updates the SeekBar primary progress by current song playing position
*/
private void primarySeekBarProgressUpdater() {
nowPlayingSeekBar.setProgress((int) (((float) getCurrentPosition() / getDuration()) * 100));
//if (isPlaying()) {
Runnable runnable = new Runnable() {
public void run() {
primarySeekBarProgressUpdater();
}
};
handler.postDelayed(runnable, 1000);
//}
}
#Override
public void start() {
musicService.start();
}
#Override
public void pause() {
playbackPaused = true;
musicService.pausePlayer();
}
#Override
public int getDuration() {
if (musicService != null && musicBound && musicService.isPlaying()) {
return musicService.getDuration();
}
return 0;
}
#Override
public int getCurrentPosition() {
if (musicService != null && musicBound && musicService.isPlaying()) {
return musicService.getPosition();
}
return 0;
}
public int getCurrentListPosition() {
if (musicService != null && musicBound && musicService.isPlaying()) {
return musicService.getCurrenListPosition();
}
return 0;
}
#Override
public void seekTo(int pos) {
musicService.seekToPosition(pos);
}
#Override
public boolean isPlaying() {
if (musicService != null && musicBound && musicService.isPlaying()) {
return musicService.isPlaying();
}
return false;
}
#Override
public int getBufferPercentage() {
return 0;
}
#Override
public boolean canPause() {
return true;
}
#Override
public boolean canSeekBackward() {
return true;
}
#Override
public boolean canSeekForward() {
return true;
}
#Override
public int getAudioSessionId() {
return 0;
}
//connect to the service
private ServiceConnection musicConnection = new ServiceConnection() {
#Override
public void onServiceConnected(ComponentName name, IBinder service) {
MusicService.MusicBinder binder = (MusicService.MusicBinder) service;
//get service
musicService = binder.getService();
//pass list
musicService.setList(songsArrayList);
musicBound = true;
}
#Override
public void onServiceDisconnected(ComponentName name) {
musicBound = false;
}
};
}
(The fragment also re-creates itself when navigating through drawer menu items)
I hope somebody can help me achieve this. I dont know how to maintane the state when re-starting the MainActivity (by the way, im using navdrawer to hold fragments)
Include the currently playing song in your notification intent. Update the intent as the song changes. Include the flag to clear top and the flag to update current in the notification intent. :( sorry IDK if I have the flags right for your situation but you'll have a place to do more research.
In your service where you create the notification intent.
// link the notifications to the recorder activity
Intent resultIntent = new Intent(context, KmlReader.class);
resultIntent
.setAction(ServiceLocationRecorder.INTENT_COM_GOSYLVESTER_BESTRIDES_LOCATION_RECORDER);
resultIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent resultPendingIntent = PendingIntent
.getActivity(context, 0, resultIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(resultPendingIntent);
return mBuilder.build();
}
Then in main onCreate check the bundle for the name of the currently playing song and display it. Notice how I check for the existence of a bundle key before using it.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
String intentaction = intent.getAction();
// First Run checks
if (savedInstanceState == null) {
// first run init
...
} else {
// get the saved_Instance state
// always get the default when key doesn't exist
// default is null for this example
currentCameraPosition = savedInstanceState
.containsKey(SAVED_INSTANCE_CAMERA_POSITION) ? (CameraPosition) savedInstanceState
.getParcelable(SAVED_INSTANCE_CAMERA_POSITION) : null;
...

Android: Execute http requests via Service

I have a trouble with getting Activity(Nullpointerexception) after that I have rotate screen and received callback from AsyncTask to update my views of the fragment. If I wont change orientation then everything is OK(but not all the time, sometimes this bug appears)
My main activity:
public class MainActivity extends SherlockFragmentActivity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.pager_layout);
fm = getSupportFragmentManager();
fm.addOnBackStackChangedListener(this);
session = new SessionManager(getApplicationContext());
if (session.isAuthorizated()) {
disableTabs();
FragmentTransaction ft = fm.beginTransaction();
if (session.termsAndConditions()) {
ft.replace(android.R.id.content, new TermsAndConditionsFragment(), "terms-and-conditions").commit();
}
}
} else {
enableTabs();
mTabsAdapter = new TabsAdapter(this, mViewPager);
mTabsAdapter.addTab(actionBar.newTab().setText("Log in"), LoginFragment.class, null);
mTabsAdapter.addTab(actionBar.newTab().setText("Calculator"), CalculatorFragment.class, null);
}
}
That`s my fragment:
public class TermsAndConditionsFragment extends SherlockFragment implements OnClickListener, OnTouchListener, OnEditorActionListener, ValueSelectedListener, AsyncUpdateViewsListener {
private static final String TAG = "TermsAndConditionsFragment";
private TermsAndConditionsManager termsAndConditionsM;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
prepareData();
}
public void prepareData() {
if (getSherlockActivity() == null)
Log.d(TAG, "Activity is null");
termsAndConditionsM = new TermsAndConditionsManager(getSherlockActivity().getApplicationContext());
termsAndConditions = termsAndConditionsM.getTermsAndConditions();
...
// some stuff
...
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
rootView = init(inflater, container);
return rootView;
}
private View init(LayoutInflater inflater, ViewGroup container) {
rootView = inflater.inflate(R.layout.fragment_terms_and_conditions, container, false);
//bla bla bla
return rootView;
}
public void updateTermsAndConditionsView() {
//update views here
}
#Override
public void onClick(View v) {
ft = fm.beginTransaction();
switch (v.getId()) {
case R.id.etHowMuch:
d = NumberPaymentsPickerFragment.newInstance(getSherlockActivity(), Integer.valueOf(howMuch.replace("£", "")), 0);
d.setValueSelectedListener(this);
d.show(getFragmentManager(), Const.HOW_MUCH);
break;
}
}
#Override
public void onValueSelected() {
Bundle args = new Bundle();
...
ExecuteServerTaskBackground task = new ExecuteServerTaskBackground(getSherlockActivity());
task.setAsyncUpdateViewsListener(this);
task.action = ServerAPI.GET_TERMS_AND_CONDITIONS;
task.args = args;
task.execute();
}
#Override
public void onUpdateViews() {
prepareData();
updateTermsAndConditionsView();
}
}
My AsyncTask with callback:
public class ExecuteServerTaskBackground extends AsyncTask<Void, Void, Void> {
private static final String TAG = "ExecuteServerTaskBackground";
Activity mActivity;
Context mContext;
private AsyncUpdateViewsListener callback;
public ExecuteServerTaskBackground(Activity activity) {
this.mActivity = activity;
this.mContext = activity.getApplicationContext();
}
public void setAsyncUpdateViewsListener(AsyncUpdateViewsListener listener) {
callback = listener;
}
#Override
protected Void doInBackground(Void... params) {
ServerAPI server = new ServerAPI(mContext);
if (!args.isEmpty())
msg = server.serverRequest(action, args);
else
msg = server.serverRequest(action, null);
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
callback.onUpdateViews();
}
}
Why does it behave so? How can I get activity correctly if I change orientation.
EDIT:
As I understand correctly nullpointer appears after orientation changed and asynctask executed due to wrong reference between asyctask and Activity. Recreated activity doesnt have this reference thats why when I receive callback I use wrong activity reference which isn`t exist anymore. But how can I save current activity reference?
EDIT:
I have decided to try realize my task throughout Service and that`s what I have done.
Activity:
public class MainFragment extends Fragment implements ServiceExecutorListener, OnClickListener {
private static final String TAG = MainFragment.class.getName();
Button btnSend, btnCheck;
TextView serviceStatus;
Intent intent;
Boolean bound = false;
ServiceConnection sConn;
RESTService service;
ProgressDialog pd = new ProgressDialog();
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setRetainInstance(true);
intent = new Intent(getActivity(), RESTService.class);
getActivity().startService(intent);
sConn = new ServiceConnection() {
#Override
public void onServiceConnected(ComponentName name, IBinder binder) {
Log.d(TAG, "MainFragment onServiceConnected");
service = ((RESTService.MyBinder) binder).getService();
service.registerListener(MainFragment.this);
if (service.taskIsDone())
serviceStatus.setText(service.getResult());
bound = true;
}
public void onServiceDisconnected(ComponentName name) {
Log.d(TAG, "MainFragment onServiceDisconnected");
bound = false;
}
};
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.main_fragment, container, false);
serviceStatus = (TextView) rootView.findViewById(R.id.tvServiceStatusValue);
btnSend = (Button) rootView.findViewById(R.id.btnSend);
btnCheck = (Button) rootView.findViewById(R.id.btnCheck);
btnSend.setOnClickListener(this);
btnCheck.setOnClickListener(this);
return rootView;
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnSend:
pd.show(getFragmentManager(), "ProgressDialog");
service.run(7);
service.run(2);
service.run(4);
break;
case R.id.btnCheck:
if (service != null)
serviceStatus.setText(String.valueOf(service.taskIsDone()) + service.getTasksCount());
break;
}
}
#Override
public void onStart() {
super.onStart();
Log.d(TAG, "Bind service");
getActivity().bindService(intent, sConn, 0);
}
#Override
public void onPause() {
super.onDestroy();
Log.d(TAG, "onDestroy: Unbind service");
if (!bound)
return;
getActivity().unbindService(sConn);
service.unregisterListener(this);
bound = false;
}
#Override
public void onComplete(String result) {
Log.d(TAG, "Task Completed");
pd.dismiss();
serviceStatus.setText(result);
}
}
Dialog:
public class ProgressDialog extends DialogFragment implements OnClickListener {
final String TAG = ProgressDialog.class.getName();
public Dialog onCreateDialog(Bundle savedInstanceState) {
setRetainInstance(true);
AlertDialog.Builder adb = new AlertDialog.Builder(getActivity())
.setTitle("Title!")
.setPositiveButton(R.string.yes, this)
.setNegativeButton(R.string.no, this)
.setNeutralButton(R.string.maybe, this)
.setCancelable(false)
.setMessage(R.string.message_text)
.setOnKeyListener(new OnKeyListener() {
#Override
public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
return true;
}
});
return adb.create();
}
public void onClick(DialogInterface dialog, int which) {
int i = 0;
switch (which) {
case Dialog.BUTTON_POSITIVE:
i = R.string.yes;
break;
case Dialog.BUTTON_NEGATIVE:
i = R.string.no;
break;
case Dialog.BUTTON_NEUTRAL:
i = R.string.maybe;
break;
}
if (i > 0)
Log.d(TAG, "Dialog 2: " + getResources().getString(i));
}
public void onDismiss(DialogInterface dialog) {
Log.d(TAG, "Dialog 2: onDismiss");
// Fix to avoid simple dialog dismiss in orientation change
if ((getDialog() != null) && getRetainInstance())
getDialog().setDismissMessage(null);
super.onDestroyView();
}
public void onCancel(DialogInterface dialog) {
super.onCancel(dialog);
Log.d(TAG, "Dialog 2: onCancel");
}
}
Service:
public class RESTService extends Service {
final String TAG = RESTService.class.getName();
MyBinder binder = new MyBinder();
ArrayList<ServiceExecutorListener> listeners = new ArrayList<ServiceExecutorListener>();
Handler h = new Handler();
RequestManager mRequest;
ExecutorService es;
Object obj;
int time;
StringBuilder builder;
String result = null;
public void onCreate() {
super.onCreate();
Log.d(TAG, "RESTService onCreate");
es = Executors.newFixedThreadPool(1);
obj = new Object();
builder = new StringBuilder();
}
public void run(int time) {
RunRequest rr = new RunRequest(time);
es.execute(rr);
}
class RunRequest implements Runnable {
int time;
public RunRequest(int time) {
this.time = time;
Log.d(TAG, "RunRequest create");
}
public void run() {
Log.d(TAG, "RunRequest start, time = " + time);
try {
TimeUnit.SECONDS.sleep(time);
} catch (InterruptedException e) {
e.printStackTrace();
}
try {
Log.d(TAG, "RunRequest obj = " + obj.getClass());
} catch (NullPointerException e) {
Log.d(TAG, "RunRequest error, null pointer");
}
builder.append("result " + time + ", ");
result = builder.toString();
sendCallback();
}
}
private void sendCallback() {
h.post(new Runnable() {
#Override
public void run() {
for (ServiceExecutorListener listener : listeners)
listener.onComplete();
}
});
}
public boolean taskIsDone() {
if (result != null)
return true;
return false;
}
public String getResult() {
return result;
}
public void registerListener(ServiceExecutorListener listener) {
listeners.add(listener);
}
public void unregisterListener(ServiceExecutorListener listener) {
listeners.remove(listener);
}
public IBinder onBind(Intent intent) {
Log.d(TAG, "RESTService onBind");
return binder;
}
public boolean onUnbind(Intent intent) {
Log.d(TAG, "RESTService onUnbind");
return true;
}
public class MyBinder extends Binder {
public RESTService getService() {
return RESTService.this;
}
}
}
As you mention in your edit, the current Activity is destroyed and recreated on orientation change.
But how can I save current activity reference?
You shouldn't. The previous Activity is no longer valid. This will not only cause NPEs but also memory leaks because the AsyncTask might hold the reference to old Activity, maybe forever.
Solution is to use Loaders.

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