I'm running a TwitterStream in my app, which runs fine, but keeps running even when I close the app (i.e.e when the app lifecycle enters pause or stop). I'm thinking it's not being a good citizen by doing that, so I'm trying to get it to start/stop based on the lifecycle.
Here is my code to start the app:
@Override
public void onStart(){
super.onStart();
Log.i("ONSTART IS CALLED", String.valueOf(twitterConfig));
initiateTwitterStream();
}
private void initiateTwitterStream() {
FilterQuery query = new FilterQuery();
String keywords[] = {"#Ferguson"};
query.track(keywords);
twitterStream = new TwitterStreamFactory(twitterConfig).getInstance();
UserStreamListener listener = new UserStreamListener() {
@Override
public void onStatus(final Status status) {
Log.i("STATUS", status.getUser().getName() + " : " + status.getText());
getActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
Log.i("STATUS ON UI THREAD", String.valueOf(Looper.getMainLooper().getThread() == Thread.currentThread()));
mAdapter.insert(status.getText(), 0);
mAdapter.notifyDataSetChanged();
}
});
}
@Override
public void onDeletionNotice(long directMessageId, long userId) {
}
@Override
public void onFriendList(long[] friendIds) {
}
@Override
public void onFavorite(User source, User target, Status favoritedStatus) {
}
@Override
public void onUnfavorite(User source, User target, Status unfavoritedStatus) {
}
@Override
public void onFollow(User source, User followedUser) {
}
@Override
public void onUnfollow(User source, User unfollowedUser) {
}
@Override
public void onDirectMessage(DirectMessage directMessage) {
}
@Override
public void onUserListMemberAddition(User addedMember, User listOwner, UserList list) {
}
@Override
public void onUserListMemberDeletion(User deletedMember, User listOwner, UserList list) {
}
@Override
public void onUserListSubscription(User subscriber, User listOwner, UserList list) {
}
@Override
public void onUserListUnsubscription(User subscriber, User listOwner, UserList list) {
}
@Override
public void onUserListCreation(User listOwner, UserList list) {
}
@Override
public void onUserListUpdate(User listOwner, UserList list) {
}
@Override
public void onUserListDeletion(User listOwner, UserList list) {
}
@Override
public void onUserProfileUpdate(User updatedUser) {
}
@Override
public void onBlock(User source, User blockedUser) {
}
@Override
public void onUnblock(User source, User unblockedUser) {
}
@Override
public void onDeletionNotice(StatusDeletionNotice statusDeletionNotice) {
}
@Override
public void onTrackLimitationNotice(int numberOfLimitedStatuses) {
}
@Override
public void onScrubGeo(long userId, long upToStatusId) {
}
@Override
public void onStallWarning(StallWarning warning) {
}
@Override
public void onException(Exception ex) {
}
};
twitterStream.addListener(listener);
twitterStream.filter(query);
}
Here is the code to stop the app (I commented out the twitterstream.shutdown line as not necessary since I do call on the twitterstream again later):
@Override
public void onStop(){
Log.i("ONSTOP IS CALLED", String.valueOf(twitterConfig));
twitterStream.cleanUp();
// twitterStream.shutdown();
super.onStop();
}
NOTE: the Twitter authentication happens in the onCreate method as follows:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_tweet, container, false);
// Set the adapter
mListView = (AbsListView) view.findViewById(android.R.id.list);
mTweetCompose = (EditText) view.findViewById(R.id.comptwitter);
((AdapterView<ListAdapter>) mListView).setAdapter(mAdapter);
Log.i("THE VIEW IS CREATED", "BUT WHEN?");
TwitterSession session =
Twitter.getSessionManager().getActiveSession();
TwitterAuthToken authToken = session.getAuthToken();
mTtoken = authToken.token;
mSecret = authToken.secret;
ConfigurationBuilder cb = new ConfigurationBuilder();
cb.setDebugEnabled(true)
.setOAuthConsumerKey(TWITTER_KEY)
.setOAuthConsumerSecret(TWITTER_SECRET)
.setOAuthAccessToken(mTtoken)
.setOAuthAccessTokenSecret(mSecret);
twitterConfig = cb.build();
//Set up Twitter Stream
//Set up Tweet Composing
initiateTwitterCompose();
return view;
}
Note that the code runs fine if I put the initiateTwitterStream method in the oncreate method - so I'm guessing the error I get is due to the asynchronous code being misaligned between the activity stopping and starting.
Here is the error code:
01-31 22:19:04.186 26728-26737/com.example.lgorse.cineios_test A/libc﹕ Fatal signal 11 (SIGSEGV) at 0x00000008 (code=1), thread 26737 (FinalizerDaemon)
Any more information required - please ask. Look forward to hearing from you.
