I'm trying to make a simple app that lists all the found Ibeacons in a ListView and changes the RSSI values according to the distance the user is from the beacons itself.
The app works fine, but the problem I'm having is that if a beacon is out of reach it does not get removed from the list. Any ideas on how to remove the item when the beacon isn't in range anymore?
I have the following code:
MainActivity.java:
public class MainActivity extends Activity implements BeaconConsumer {
public ListView list;
public BeaconAdapter adapter;
public ArrayList<Beacon> arrayL = new ArrayList<>();
public LayoutInflater inflater;
public BeaconManager mBeaconManager;
public boolean beaconPresent;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list = (ListView)findViewById(R.id.lijst);
mBeaconManager = BeaconManager.getInstanceForApplication(this.getApplicationContext());
mBeaconManager.getBeaconParsers().add(new BeaconParser().setBeaconLayout("s:0-1=feaa,m:2-2=00,p:3-3:-41,i:4-13,i:14-19"));
mBeaconManager.setForegroundBetweenScanPeriod(100);
mBeaconManager.bind(this);
adapter = new BeaconAdapter();
list.setAdapter(adapter);
inflater =(LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public void onBeaconServiceConnect() {
Region region = new Region("all-beacons-region", null, null, null);
try {
mBeaconManager.startRangingBeaconsInRegion(region);
} catch (RemoteException e) {
e.printStackTrace();
}
mBeaconManager.setRangeNotifier(new RangeNotifier() {
#Override
public void didRangeBeaconsInRegion(final Collection<Beacon> beacons, Region region) {
runOnUiThread(new Runnable() {
#Override
public void run() {
ArrayList<Beacon> allRangedBeacons = (ArrayList<Beacon>) beacons;
ArrayList<Beacon> newRangedBeacons = new ArrayList<>();
ArrayList<Beacon> cloneArraylistIBeacon = (ArrayList<Beacon>) arrayL.clone();
ArrayList<Beacon>nonRangedBeacons = new ArrayList<>();
int index = 0;
for (Beacon presentBeacons : cloneArraylistIBeacon) {
beaconPresent = false;
for (Beacon eachRangedBeacon : allRangedBeacons) {
if (presentBeacons.equals(eachRangedBeacon)) {
arrayL.remove(index);
arrayL.add(index, eachRangedBeacon);
beaconPresent = true;
}
if(beaconPresent = false) {
nonRangedBeacons.add(presentBeacons);
}
}
index++;
}
for (Beacon eachRangedBeacon : allRangedBeacons) {
beaconPresent = false;
for (Beacon presentBeacons : cloneArraylistIBeacon) {
if (eachRangedBeacon.equals(presentBeacons)) {
beaconPresent = true;
}
}
if (!beaconPresent) {
newRangedBeacons.add(eachRangedBeacon);
}
}
arrayL.remove(nonRangedBeacons);
arrayL.addAll(newRangedBeacons);
adapter.notifyDataSetChanged();
}
});
}
});
}
protected void onPause() {
super.onPause();
mBeaconManager.unbind(this);
}
private class BeaconAdapter extends BaseAdapter {
#Override
public int getCount() {
if (arrayL != null && arrayL.size() > 0) {
return arrayL.size();
} else {
return 0;
}
}
#Override
public Beacon getItem(int position) {
return arrayL.get(position);
}
#Override
public long getItemId(int arg0) {
return arg0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
holder = new ViewHolder(convertView = inflater.inflate(R.layout.tupple_monitoring, null));
try {
holder.uuid.setText("UUID: " + arrayL.get(position).getId2());
holder.rssi.setText("RSSI: " + arrayL.get(position).getRssi());
holder.txpow.setText("TXPOW: " + arrayL.get(position).getTxPower());
return convertView;
}catch(Exception e) {
e.printStackTrace();
}
return convertView;
}
}
private class ViewHolder {
private TextView uuid;
private TextView rssi;
private TextView txpow;
public ViewHolder(View view) {
uuid = (TextView)view.findViewById(R.id.BEACON_uuid);
rssi = (TextView)view.findViewById(R.id.BEACON_rssi);
txpow = (TextView)view.findViewById(R.id.BEACON_txpower);
view.setTag(this);
}
}
}
If you only want to display beacons in range, every time you receive a list of beacons simply change the adapter source list.
arrayL.clear();
arrayL.addAll(beacons);
adapter.notifyDataSetChanged();
To avoid jumping around if list items, maybe sort the beacons by their RSSI before displaying them.
Because the Android Beacon Library already tracks the list of visible beacons and updates it in the ranging callback, you can simply refresh the whole list in your BeaconAdapter each time. Like this:
#Override
public void didRangeBeaconsInRegion(final Collection<Beacon> beacons, Region region) {
runOnUiThread(new Runnable() {
#Override
public void run() {
arrayL = new ArrayList<Beacon>(beacons);
adapter.notifyDataSetChanged();
}
});
}
Related
I am creating an android tv app in the app I am sliding infinity loop fragments (Image and Video URLs ). I use glide for image loading and exoplayer2 for video loading it's working perfectly in my emulator and other 2-3 devices but when I run it in my actual android tv it keeps crashing after some time with an error memory exception. I tested it In emulator using profiler how much memory it using but it is only using min 100 Mb not bigger than that I even check for a leak using leak cannery no leak was found I can't find any solution can someone please help me
Fragment:
`public class BannerFragment extends Fragment {
/*TODO TAGs*/
private String TAG = BannerFragment.class.getSimpleName();
/*TODO View Binding*/
private BannerFragmentBinding vb;
private PromotionalBanner promotionalBanner;
private int position;
private ArrayList<PromotionalBanner> promotionalBannerArrayList;
private CountDownTimer timer;
SimpleExoPlayer simpleExoPlayer;
private final String VIDEO_BUFFER_TIMER = "10000";
/*TODO Glide Listener*/
private RequestListener requestListener = new RequestListener<Drawable>() {
#Override
public boolean onLoadFailed(#Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
if (vb != null) {
ShowToast(" Can't load image ");
vb.avi.setVisibility(View.GONE);
slideNextItem();
}
return false;
}
#Override
public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
if (vb != null) {
vb.avi.setVisibility(View.GONE);
}
return false;
}
};
/*TODO PlayerListener*/
private Player.Listener playerListener = new Player.Listener() {
#Override
public void onIsPlayingChanged(boolean isPlaying) {
Log.e(TAG, "onIsPlayingChanged: " + isPlaying);
}
#Override
public void onPlaybackStateChanged(int playbackState) {
if (playbackState == Player.STATE_ENDED) {
slideNextItem();
} else if (playbackState == Player.STATE_READY) {
vb.avi.setVisibility(View.GONE);
if (timer != null) {
timer.cancel();
timer = null;
}
Log.e("TimerCheck", "onPlaybackStateChanged: endTimer "+timer );
} else if (playbackState == Player.STATE_BUFFERING) {
vb.avi.setVisibility(View.VISIBLE);
setSlideTimer(VIDEO_BUFFER_TIMER);
Log.e("TimerCheck", "onPlaybackStateChanged: startTimer "+timer );
} else if (playbackState == Player.STATE_IDLE) {
slideNextItem();
}
}
#Override
public void onPlayWhenReadyChanged(boolean playWhenReady, int reason) {
}
};
/*TODO get Fragment Instant*/
public static Fragment getInstantFragment(PromotionalBanner promotionalBanner,
int index,
ArrayList<PromotionalBanner> promotionalBannerArrayList) {
BannerFragment fragment = new BannerFragment();
Bundle bundle = new Bundle();
bundle.putParcelable("promotionalBanner", promotionalBanner);
bundle.putInt("position", index);
bundle.putParcelableArrayList("list", promotionalBannerArrayList);
fragment.setArguments(bundle);
return fragment;
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.promotionalBanner = getArguments().getParcelable("promotionalBanner");
this.position = getArguments().getInt("position");
this.promotionalBannerArrayList = getArguments().getParcelableArrayList("list");
}
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
vb = BannerFragmentBinding.inflate(getLayoutInflater());
return vb.getRoot();
}
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
#Override
public void onResume() {
super.onResume();
if (!isImageFile(promotionalBanner.getMedia())) {
showVideoViewContainer();
setVideo(promotionalBanner);
} else {
hideVideoViewContainer();
loadImage(promotionalBanner.getMedia(), promotionalBanner.getDuration());
/*TODo set image Timer*/
setSlideTimer(promotionalBanner.getDuration());
}
}
/*TODO setVideo*/
private void setVideo(PromotionalBanner promotionalBanner) {
Uri uri = Uri.parse(promotionalBanner.getMedia());
Log.e("dataUriTest", "setVideo: " + uri);
simplePlayer(uri);
}
/*TODO Simple Player*/
private void simplePlayer(Uri uri) {
simpleExoPlayer = new SimpleExoPlayer.Builder(getContext()).build();
simpleExoPlayer.addMediaItem(MediaItem.fromUri(uri));
setSlideTimer(VIDEO_BUFFER_TIMER);
Log.e("TimerCheck", "onPlaybackStateChanged:insideSimplePlayer startTimer "+timer );
vb.avi.setVisibility(View.VISIBLE);
vb.videoView.hideController();
vb.videoView.setPlayer(simpleExoPlayer);
simpleExoPlayer.prepare();
simpleExoPlayer.setPlayWhenReady(true);
simpleExoPlayer.addListener(playerListener);
}
/*TODO Go To next From vide Slide*/
private void slideNextItem() {
if(simpleExoPlayer != null){
simpleExoPlayer.release();
simpleExoPlayer = null;
}
int nextposition = position + 1;
goToNextItem(nextposition);
}
#Override
public void onPause() {
super.onPause();
Log.e("LogBannerFragment", "onPause: ");
if (timer != null) {
timer.cancel();
}
if (simpleExoPlayer != null) {
simpleExoPlayer.release();
simpleExoPlayer = null;
}
}
#Override
public void onDestroy() {
super.onDestroy();
Log.e("Destory", "onDestroy: " );
if (playerListener != null) {
playerListener = null;
}
if (requestListener != null) {
requestListener = null;
}
if (vb != null) {
vb = null;
}
}
#Override
public void onDestroyView() {
super.onDestroyView();
}
/*TODO load Image*/
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void loadImage(String media, String duration) {
vb.avi.setVisibility(View.VISIBLE);
Glide.with(getContext()).load(convert_http_https(media))
.diskCacheStrategy(DiskCacheStrategy.RESOURCE)
.error(getContext().getDrawable(R.drawable.banner))
.addListener(requestListener)
.into(vb.imageView);
}
/*TODO convert url http to https in android studio*/
private String convert_http_https(String url) {
String original;
if (url.contains("https")) {
original = url;
} else {
original = url.replace("http", "https");
}
return original;
}
/*TODO set Image timer*/
private void setSlideTimer(String duration) {
timer = new CountDownTimer(Integer.parseInt(duration), 1000) {
#Override
public void onTick(long millisUntilFinished) {
}
#Override
public void onFinish() {
int nextPosition = position + 1;
// int nextPosition = DispolyActivity.vb.viewPager.getCurrentItem()+1;
goToNextItem(nextPosition);
}
};
timer.start();
}
/*TODO Next Position in arrayList*/
private void goToNextItem(int nextPosition) {
HandlerCompat.createAsync(Looper.getMainLooper())
.post(() ->
DispolyActivity.vb.viewPager.setCurrentItem(nextPosition)
);
}
/*TODO is image file*/
public static boolean isImageFile(String path) {
String mimeType = URLConnection.guessContentTypeFromName(path);
return mimeType != null && mimeType.startsWith("image");
}
/*TODO Video view Container*/
private void showVideoViewContainer() {
Log.e("datashow", "showVideoViewContainer: "+vb);
vb.videoContainer.setVisibility(View.VISIBLE);
vb.imageView.setVisibility(View.GONE);
}
/*TODO hide video view Container*/
private void hideVideoViewContainer() {
vb.videoContainer.setVisibility(View.GONE);
vb.imageView.setVisibility(View.VISIBLE);
}
/*TODO show Toast*/
private void ShowToast(String msg) {
Toast.makeText(getContext(), msg, Toast.LENGTH_LONG).show();
}
}
`
My Adapter for slide fragment :
public class SliderAdapter extends FragmentStatePagerAdapter {
private String TAG = SliderAdapter.class.getSimpleName();
private ArrayList<PromotionalBanner> promotionalBannerArrayList;
public SliderAdapter(#NonNull FragmentManager fm,ArrayList<PromotionalBanner> promotionalBannerArrayList) {
super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
this.promotionalBannerArrayList = promotionalBannerArrayList;
}
#NonNull
#Override
public Fragment getItem(int position) {
PromotionalBanner promotionalBanner = DispolyActivity.promotionalBannerArrayList.get(position);
Log.e("positiondata", "dataPost: "+position );
return BannerFragment.getInstantFragment(promotionalBanner,
position,DispolyActivity.promotionalBannerArrayList);
}
#Override
public int getCount() {
return DispolyActivity.promotionalBannerArrayList.size();
}
#Override
public int getItemPosition(#NonNull Object object) {
return POSITION_UNCHANGED;
}
#Override
public void destroyItem(#NonNull ViewGroup container,
int position, #NonNull Object object) {
super.destroyItem(container, position, object);
Log.e("itemDestroy", "destroyItem: "+object );
}
/*TODO update Adapter Data*/
public void updateAdapter_Data(ArrayList<PromotionalBanner> promotionalBannersList){
this.promotionalBannerArrayList = promotionalBannersList;
// notifyDataSetChanged();
}
}
When working with the player, you need to carefully monitor the life cycle.
simpleExoPlayer.release();
simpleExoPlayer = null;
Try to use this not only in onPause(), try it also in onDestroy and onDestroyView.
If the problem goes away, then go through which life cycle methods are called and leave the release call in the right places
You have an issue not with memory, most likely you have an issue related to the codec.
Each device has its own limited number of codecs.
Some devices have more, some have less.
Therefore, on some devices, you can run the video more times, especially on emulators.
I wanted to know how to load more data in recylcer view using firestore.
Query query = FirebaseFirestore.getInstance()
.collection("ie").limit(5);
adapter=new InterviewAdapter(this,query);
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
Adapter class looks like this:
public class InterviewAdapter extends FireStoreAdapter<InterviewAdapter.ViewHolder> {
public interface OnInterviewSelectedListener {
void onInterviewSelected(DocumentSnapshot interview);
}
private InterviewAdapter.OnInterviewSelectedListener mListener;
public InterviewAdapter(Query query, OnInterviewSelectedListener listener) {
super(query);
mListener = listener;
}
#Override
public InterviewAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
return new InterviewAdapter.ViewHolder(inflater.inflate(R.layout.ie, parent, false));
}
#Override
public void onBindViewHolder(InterviewAdapter.ViewHolder holder, int position) {
holder.bind(getSnapshot(position), mListener);
}
static class ViewHolder extends RecyclerView.ViewHolder {
TextView title,companyName,username,views,isHired;
public ViewHolder(View itemView) {
super(itemView);
title= (TextView) itemView.findViewById(R.id.title);
companyName= (TextView) itemView.findViewById(R.id.companyName);
username= (TextView) itemView.findViewById(R.id.username);
views= (TextView) itemView.findViewById(R.id.views);
isHired= (TextView) itemView.findViewById(R.id.isHired);
}
public void bind(final DocumentSnapshot snapshot,
final OnInterviewSelectedListener listener) {
InterviewExperience experience;
String companyName=snapshot.getString("companyName");
boolean isHired=Boolean.valueOf(snapshot.getBoolean("isHired"));
String username=snapshot.getString("username");
long views=new Double(Double.valueOf(snapshot.getDouble("views"))).longValue();
String id=snapshot.getId();
String title=snapshot.getString("title");
experience=new InterviewExperience(id,title,companyName,username,isHired,views,null,null);
this.title.setText(experience.getTitle());
this.companyName.setText("Company Name: "+experience.getCompanyName());
this.isHired.setText("Hired: "+experience.isHired());
this.views.setText("Views: "+experience.getViews()+"");
this.username.setText("Created By: "+experience.getUsername());
// Click listener
itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (listener != null) {
listener.onInterviewSelected(snapshot);
}
}
});
}
}
}
public abstract class FireStoreAdapter<VH extends RecyclerView.ViewHolder>
extends RecyclerView.Adapter<VH>
implements EventListener<QuerySnapshot> {
private static final String TAG = "FirestoreAdapter";
private Query mQuery;
private ListenerRegistration mRegistration;
private ArrayList<DocumentSnapshot> mSnapshots = new ArrayList<>();
public FireStoreAdapter(Query query) {
mQuery = query;
}
#Override
public void onEvent(QuerySnapshot documentSnapshots, FirebaseFirestoreException e) {
if (e != null) {
Log.w(TAG, "onEvent:error", e);
onError(e);
return;
}
// Dispatch the event
Log.d(TAG, "onEvent:numChanges:" + documentSnapshots.getDocumentChanges().size());
for (DocumentChange change : documentSnapshots.getDocumentChanges()) {
switch (change.getType()) {
case ADDED:
onDocumentAdded(change);
break;
case MODIFIED:
onDocumentModified(change);
break;
case REMOVED:
onDocumentRemoved(change);
break;
}
}
onDataChanged();
}
public void startListening() {
if (mQuery != null && mRegistration == null) {
mRegistration = mQuery.addSnapshotListener(this);
}
}
public void stopListening() {
if (mRegistration != null) {
mRegistration.remove();
mRegistration = null;
}
mSnapshots.clear();
notifyDataSetChanged();
}
public void setQuery(Query query) {
// Stop listening
stopListening();
// Clear existing data
mSnapshots.clear();
notifyDataSetChanged();
// Listen to new query
mQuery = query;
startListening();
}
#Override
public int getItemCount() {
return mSnapshots.size();
}
protected DocumentSnapshot getSnapshot(int index) {
return mSnapshots.get(index);
}
protected void onDocumentAdded(DocumentChange change) {
mSnapshots.add(change.getNewIndex(), change.getDocument());
notifyItemInserted(change.getNewIndex());
}
protected void onDocumentModified(DocumentChange change) {
if (change.getOldIndex() == change.getNewIndex()) {
// Item changed but remained in same position
mSnapshots.set(change.getOldIndex(), change.getDocument());
notifyItemChanged(change.getOldIndex());
} else {
// Item changed and changed position
mSnapshots.remove(change.getOldIndex());
mSnapshots.add(change.getNewIndex(), change.getDocument());
notifyItemMoved(change.getOldIndex(), change.getNewIndex());
}
}
protected void onDocumentRemoved(DocumentChange change) {
mSnapshots.remove(change.getOldIndex());
notifyItemRemoved(change.getOldIndex());
}
protected void onError(FirebaseFirestoreException e) {};
protected void onDataChanged() {}
}
I used Firestore Adapter code which was given in samples of firestore documentation. Can anyone tell how to use the query object to load more data?
How to load the next 5 items in the recycler view when users scrolls to the end of the list?
You can paginate your Query's result using Query's methods like, startAt(), startAfter(), endAt(), endBefore() with a specified DocumentSnapshot.
If I considered your collection is called "interviews", you can add a method to your FireStoreAdapter like this:
private void paginate(final DocumentSnapshot last, final int limit) {
final Query subset;
if (last == null) {
subset = db.collection("interviews")
.limit(limit);
} else {
subset = db.collection("interviews")
.startAfter(last)
.limit(limit);
}
setQuery(subset);
}
You can perserve the last DocumentSnapshot within onEvent():
final List<DocumentChange> changes = documentSnapshots.getDocumentChanges();
final DocumentSnapshot lastDocument = changes.get(changes.size() - 1).getDocument();
Finally, when users scrolls to the end of the list:
paginate(lastDocument, 5);
And onDocumentAdded() will take care of it. Be carfure NOT to use startAt() because it will not execlude the last one (that already at the end of your list, and will duplicate it).
I have an if statement written below:
//Set Friend Action OnClickListener & Image
if (ParseUser.getCurrentUser().getList("friendsArray").contains(searchResultsList.get(position))) {
Glide.with(holder.imgFriendAction.getContext()).load(R.drawable.ic_phone_black_24dp).into(holder.imgFriendAction);
ImageViewCompat.setImageTintList(holder.imgFriendAction, ColorStateList.valueOf(searchContext.getColor(R.color.green)));
}
else if (ParseUser.getCurrentUser().getList("pendingFriendsArray").contains(searchResultsList.get(position))) {
Glide.with(holder.imgFriendAction.getContext()).load(R.drawable.ic_check_black_24dp).into(holder.imgFriendAction);
ImageViewCompat.setImageTintList(holder.imgFriendAction, ColorStateList.valueOf(searchContext.getColor(R.color.gray_dark)));
}
else {
Glide.with(holder.imgFriendAction.getContext()).load(R.drawable.ic_person_add_black_24dp).into(holder.imgFriendAction);
ImageViewCompat.setImageTintList(holder.imgFriendAction, ColorStateList.valueOf(searchContext.getColor(R.color.colorPrimary)));
}
The problem is that every single time I run that statement it always returns FALSE for both if statements even though I know for a fact that 'friendsArray' & 'pendingFriendsArray' return TRUE in many circumstances.
Both arrays contain pointers to the _User table.
searchResultsList is declared as follows:
private List<ParseUser> searchResultsList;
I've logged all three items (friendsArray, pendingFriendsArray & searchResultsList.get(position)) to the console and they show the following:
D/friendsArray: [com.parse.ParseUser#ae66779, com.parse.ParseUser#8371cbe, com.parse.ParseUser#32d511f, com.parse.ParseUser#5fd2c6c, com.parse.ParseUser#7dd0235, com.parse.ParseUser#9c446ca, com.parse.ParseUser#5fe03b]
D/pendingFriendsArray: [com.parse.ParseUser#7c6a358, com.parse.ParseUser#3688cb1, com.parse.ParseUser#480596]
D/searchResultsList.get(position) =: com.parse.ParseUser#5fe03b
The entire class is below:
public class SearchUserAdapter extends RecyclerView.Adapter<SearchUserAdapter.ViewHolder> {
private Context searchContext;
private List<ParseUser> searchResultsList;
OnItemClickListener onItemClickListener;
public SearchUserAdapter(Context context, List<ParseUser> dataSet) {
searchContext = context;
searchResultsList = dataSet;
}
public interface OnItemClickListener {
public void onItemClick(View view, ParseUser searchUserObject, int position);
}
public void setOnItemClickListener(final OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(searchContext).inflate(R.layout.ly_search_user, parent,false);
return new ViewHolder(v);
}
#Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
//Set User Name
holder.txtUserName.setText(searchResultsList.get(position).getString("fullName"));
//Set User Location
holder.txtUserLocation.setText(GlobalFunctions.getParseUserLocationAsString(holder.txtUserName.getContext(), searchResultsList.get(position)));
//Set User Profile Image
if (searchResultsList.get(position).getParseFile("profilePicture") != null) {
Glide.with(holder.imgUserProfilePicture.getContext()).applyDefaultRequestOptions(RequestOptions.circleCropTransform()).load(searchResultsList.get(position).getParseFile("profilePicture").getUrl()).into(holder.imgUserProfilePicture);
}
else {
Glide.with(holder.imgUserProfilePicture.getContext()).applyDefaultRequestOptions(RequestOptions.circleCropTransform()).load(R.drawable.ic_profile_place_holder).into(holder.imgUserProfilePicture);
}
//Set Row OnClickListener
holder.rlUserItem.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (searchResultsList.get(position).getObjectId().equalsIgnoreCase(ParseUser.getCurrentUser().getObjectId())) {
Intent openProfile;
openProfile = new Intent(holder.rlUserItem.getContext(), TimelineActivity.class);
holder.rlUserItem.getContext().startActivity(openProfile);
}
else {
Intent openOtherProfile = new Intent(holder.rlUserItem.getContext(), OtherUserTimelineActivity.class);
openOtherProfile.putExtra("otherUserProfileId", searchResultsList.get(position).getObjectId());
holder.rlUserItem.getContext().startActivity(openOtherProfile);
}
}
});
//Set Friend Action OnClickListener & Image
if (ParseUser.getCurrentUser().getList("friendsArray").contains(searchResultsList.get(position))) {
Glide.with(holder.imgFriendAction.getContext()).load(R.drawable.ic_phone_black_24dp).into(holder.imgFriendAction);
ImageViewCompat.setImageTintList(holder.imgFriendAction, ColorStateList.valueOf(searchContext.getColor(R.color.green)));
}
else if (ParseUser.getCurrentUser().getList("pendingFriendsArray").contains(searchResultsList.get(position))) {
Glide.with(holder.imgFriendAction.getContext()).load(R.drawable.ic_check_black_24dp).into(holder.imgFriendAction);
ImageViewCompat.setImageTintList(holder.imgFriendAction, ColorStateList.valueOf(searchContext.getColor(R.color.gray_dark)));
}
else {
Glide.with(holder.imgFriendAction.getContext()).load(R.drawable.ic_person_add_black_24dp).into(holder.imgFriendAction);
ImageViewCompat.setImageTintList(holder.imgFriendAction, ColorStateList.valueOf(searchContext.getColor(R.color.colorPrimary)));
}
holder.imgFriendAction.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
friendActionListenerAction(holder, searchResultsList.get(position));
}
});
}
private void friendActionListenerAction(ViewHolder holder, ParseUser parseUser) {
if (ParseUser.getCurrentUser().getList("friendsArray").contains(parseUser)) {
FLKCallUtils.showCallDialog(holder.imgFriendAction.getContext());
}
else if (ParseUser.getCurrentUser().getList("pendingFriendsArray").contains(parseUser)) {
//Do nothing
}
else {
//Add Friend
FLKFriendUtils.sendFriendRequestFromUserToUser(ParseUser.getCurrentUser(), parseUser);
//Update Image
Glide.with(holder.imgFriendAction.getContext()).load(R.drawable.ic_check_black_24dp).into(holder.imgFriendAction);
ImageViewCompat.setImageTintList(holder.imgFriendAction, ColorStateList.valueOf(searchContext.getColor(R.color.gray_dark)));
}
}
#Override
public int getItemCount() {
return searchResultsList.size();
}
class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public MediumRobotoTextView txtUserName;
public RegularRobotoTextView txtUserLocation;
public RelativeLayout rlUserItem;
ImageView imgUserProfilePicture;
ImageView imgFriendAction;
public ViewHolder(View itemView) {
super(itemView);
rlUserItem = (RelativeLayout) itemView.findViewById(R.id.rl_user_container);
rlUserItem.setOnClickListener(this);
txtUserName = (MediumRobotoTextView) itemView.findViewById(R.id.txt_user_name);
txtUserLocation = (RegularRobotoTextView) itemView.findViewById(R.id.txt_user_location);
imgUserProfilePicture = (ImageView) itemView.findViewById(R.id.img_profile_picture);
imgUserProfilePicture.setOnClickListener(this);
imgFriendAction = (ImageView) itemView.findViewById(R.id.img_friend_action);
imgFriendAction.setOnClickListener(this);
}
#Override
public void onClick(View v) {
//TODO - do something here if you wish
}
}
Upon further investigation I found that the parse-android SDK does not fetch pointers the same every single time. For example when I fetch 'friendsArray', let's say right now, it will return
[com.parse.ParseUser#ae66779, com.parse.ParseUser#8371cbe, com.parse.ParseUser#32d511f, com.parse.ParseUser#5fd2c6c, com.parse.ParseUser#7dd0235, com.parse.ParseUser#9c446ca, com.parse.ParseUser#5fe03b]
However if I then fetch it, let's say in 5 minutes, it will return
[com.parse.ParseUser#ec99877, com.parse.ParseUser#674bcg, com.parse.ParseUser#749hhc, com.parse.ParseUser#6fh3d6dg, com.parse.ParseUser#jdj8dk, com.parse.ParseUser#4c966ca, com.parse.ParseUser#3f0eeb]
Additionally, I noted that even the pointer to searchResultsList.get(position) changes it's reference every time I loaded it.
The way I got around this was to create a function (seen below) that returns an array of the actual objectId's of the pointers inside the 'friendsArray'. This way I can guarantee that it will always be returning the same items and can therefore create an accurate 'contains' comparison.
public static List<String> friendsArrayObjectIdsArray() {
//Create Array of Friends
List<ParseUser> friendsArray = ParseUser.getCurrentUser().getList("friendsArray");
//Create Temp Array of Object Id's
List<String> tempObjectIdsArray = new ArrayList<>();
//Iterate List
for (ParseUser friendUser : friendsArray) {
tempObjectIdsArray.add(friendUser.getObjectId());
}
return tempObjectIdsArray;
}
I then run the following comparison to get the result I am looking for
if (FLKUserUtils.friendsArrayObjectIdsArray().contains(searchResultsList.get(position).getObjectId())) {
//Do something
}
I am using a git repo called LikeButton, but the state of my button keeps jumping around in my recyclerview? Here is the repo https://github.com/jd-alexander/LikeButton. Basically when I click on a recyclerview item, it sets a textview to the word true or false based on if the user liked the post or not, and this works. However, the state of my button is doing some weird stuff, it jumps around...
Here is my Adapter, is their anything wrong with it?
public class ViewpagerAdapter extends RecyclerView.Adapter<ViewpagerAdapter.ViewDashboard>{
private LayoutInflater mLayoutInflater;
private ArrayList<QuestionData> data = new ArrayList<>();
public ViewpagerAdapter(Context context) {
mLayoutInflater=LayoutInflater.from(context);
}
public void setBloglist(ArrayList<QuestionData> listBlogs) {
this.data = listBlogs;
notifyItemRangeChanged(0,listBlogs.size());
}
#Override
public ViewDashboard onCreateViewHolder(ViewGroup parent, int viewType) {
View view = mLayoutInflater.inflate(R.layout.customizejson, parent, false);
ViewDashboard viewholder = new ViewDashboard(view);
return viewholder;
}
#Override
public void onBindViewHolder(ViewDashboard holder, int position) {
QuestionData questionHolder = data.get(position);
holder.questionText.setText(questionHolder.getMtext());
//This sets the text, to a true or a false String
holder.mStudentVoted.setText(questionHolder.getVoters());
holder.mLikeButton.setTag(holder);
}
#Override
public int getItemCount() {
return data.size();
}
class ViewDashboard extends RecyclerView.ViewHolder {
private TextView questionText;
private LikeButton mLikeButton;
private TextView mStudentVoted;
public ViewDashboard(View itemView) {
super(itemView);
questionText = (TextView)itemView.findViewById(R.id.questionText);
mStudentVoted = (TextView)itemView.findViewById(R.id.studentVoted);
mLikeButton = (LikeButton)itemView.findViewById(R.id.like_button_viewpager);
mLikeButton.setOnLikeListener(new OnLikeListener() {
#Override
public void liked(LikeButton likeButton) {
Voting voting = new Voting(getAdapterPosition(),ViewpagerAdapter.this, questionId);
voting.onUpVote();
}
#Override
public void unLiked(LikeButton likeButton) {
Voting voting = new Voting(getAdapterPosition(),ViewpagerAdapter.this, questionId);
voting.onDownVote();
}
});
}
}
}
Voting Class
public class Voting {
private int adapterPosition;
private RecyclerView.Adapter adapter;
private String stringId;
private TextView studentVoted;
//TODO Trim Constructor
public Voting(int adapterPosition,final RecyclerView.Adapter adapter, TextView questionId, TextView studentVoted) {
stringId = questionId.getText().toString();
this.adapter = adapter;
this.studentVoted=studentVoted;
}
public void onUpVote() {
final RequestQueue mRequestQueue = VolleySingleton.getInstance().getRequestQueue();
StringRequest postVoteUp = new StringRequest(Request.Method.PUT, PUT_VOTE_UP, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
System.out.println("Succesful Upvote The Students Value is " + studentVoted);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
System.out.println("failed Upvote");
}
});
mRequestQueue.add(postVoteUp);
}
public void onDownVote() {
final RequestQueue mrequestQueue = VolleySingleton.getInstance().getRequestQueue();
//TODO Delete Token(inserted for student 3 for testing purposes)
StringRequest postVoteDown = new StringRequest(Request.Method.PUT, PUT_VOTE_DOWN, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
//TODO OnResponse, must setLiked(False)
//Succesful downVote The Students Value is true
//studentVoted.setText("false");
System.out.println("Succesful downVote The Students Value is "+studentVoted);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
System.out.println("failed downVote");
}
});
mrequestQueue.add(postVoteDown);
}
public void realTimeUpVoting(TextView textView){
String voteString= textView.getText().toString();
int voteNumber=Integer.parseInt(voteString)+1;
textView.setText("" + voteNumber);
}
public void realTimeDownVoting(TextView textView){
String voteString= textView.getText().toString();
int voteNumber=Integer.parseInt(voteString)-1;
textView.setText("" + voteNumber);
}
}
Json Request and Parsing Methods
public void JsonRequestMethod() {
mVolleySingleton = VolleySingleton.getInstance();
mRequestQueue = mVolleySingleton.getRequestQueue();
JsonArrayRequest request = new JsonArrayRequest(Request.Method.GET, URL_HOME, (String) null, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
try {
mListblogs.clear();
mListblogs = new YourTask().execute(response).get();
} catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
mRequestQueue.add(request);
}
private ArrayList<QuestionData> parseJSONResponse(JSONArray response) {
if (!response.equals("")) {
try {
StringBuilder data = new StringBuilder();
for (int x = 0; x < response.length(); x++) {
JSONObject currentQuestions = response.getJSONObject(x);
JSONArray arrSubcategory = currentQuestions.optJSONArray("questions");
for (int y = 0; y < arrSubcategory.length(); y++) {
JSONObject objectSubcategory = arrSubcategory.getJSONObject(y);
String text = objectSubcategory.optString("text");
String studentId = objectSubcategory.optString("studentId");
String votes=objectSubcategory.optString("votes");
/*JSONArray cycles through the array of voters, when a user votes
their ID is added to the array.When they downvote, it is removed
*/
JSONArray voters= objectSubcategory.optJSONArray("voters");
QuestionData questionData = new QuestionData();
questionData.setMstudentId(studentId);
questionData.setMtext(text);
questionData.setVotes(votes);
questionData.setVoters(checkIfVoted(voters));
mQuestionDataArrayList.add(questionData);
}
}
} catch (JSONException e) {
e.printStackTrace();
}
}
return mQuestionDataArrayList;
}
private static String checkIfVoted(JSONArray jsonArray ) {
/*pass in a json Array, copy the array into ints, and if
the students Id is contained in the array return the string true
*/
int[] voteIds = new int[jsonArray.length()];
for(int i=0;i<voteIds.length;i++){
voteIds[i] = jsonArray.optInt(i);
}
for(int i=0;i<voteIds.length;i++){
if(voteIds[i]== Integer.parseInt(Login.getUserId())){
//TODO String was only used for Testing purposes, Convert to Boolean later
return "true";
}
}
return "false";
}
you are currently only updating the textview which is why your recycleview changes state when scrolling.
Should change your voting class and pass the question Data rather textview
public Voting(int adapterPosition,final RecyclerView.Adapter adapter, TextView questionId, TextView studentVoted) {
change to
public Voting(int adapterPosition,final RecyclerView.Adapter adapter, QuestionData questionData, TextView studentVoted) {
// make other changes for the data
and then in
public void realTimeUpVoting(QuestionData questionData){
data.votes++ //something like that. idont know your model
// now call back using interface the recyleview data changed method so it updates the count in recycleview automatically.
Edit
passing the question Data in click button
class ViewDashboard extends RecyclerView.ViewHolder {
public int position
public void onBindViewHolder(ViewDashboard holder, int position) {
holder.position = position
}
public void liked(LikeButton likeButton) {
QuestionData questionHolder = data.get(position);
I have problem to set data into listview. Problem occurs after set message, message is set first after come 8th message from thread.
**below is my whole code :****(Here is my "Activity and adapter")**
public class Inboxreadmsg extends ActionBarActivity {
// <strong>Here is my global variable</strong>
ListView lv;
Handler h;
Custom_Inbox_Adapter ccAdpt;
Custom_Inbox_Adapter inadapter;
Runnable checker;
List<Dataset> dataset;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.messagesublistlayout);
// map id from layout</strong>
lv =(ListView)findViewById(R.id.readmessagelist);
/*****************************call thread of webservice with database****************************/
runThread();
startHandler();
/*****************************call thread of webservice with database****************************/
}
public void runThread()
{
h=new Handler();
checker=new Runnable()
{
#Override
public void run() {
// call webservice for fetch data
forthread();
h.postDelayed(checker,15000);
}
};
}
public void forthread()
{
// call webservice to fetch data
new InboxReadChat(null, InboxReadChat.TotalMessagesOfSingleSenderUser.geturl( recipientid,InAppUserid), InboxReadChat.TYPE_GET, InboxReadChat.TYPE_RECEIVE_MESSAGE_INBOX, new ServiceHitListenerInboxChat() {
#Override
public void onSuccess(Object Result, int id)
{
// After success of webservice response come this function
callFxnInSuccess(Result);
}
#Override
public void onError(String Error, int id)
{
// AfterError of webservice response come this function
// By this fxn set data from local database to listview
DBvaluesSet();
}
});
}
private void callFxnInSuccess(Object Result) {
dataset = new ArrayList<Dataset>();
String message="",alldatetime="",time="",date="",type="";
InboxDeliveredModel ibx=(InboxDeliveredModel) Result;
if(ibx.getTotalMessagesOfSingleSenderUser().size()>0)
{
// here webservice response data will add on local database
dbObject.Open();
for(int i=0;i<ibx.getTotalMessagesOfSingleSenderUser().size();i++)
{
message =ibx.getTotalMessagesOfSingleSenderUser().get(i).getMessage();
.....
dbObject.InboxMessageAll(message,InAppUsermobile,time,recipientid,type,date);
}
dbObject.close();
// After add data into database call below fxn to fetch data from database and set data in listview with adapter
try
{
DBvaluesSet();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
public void DBvaluesSet() {
dataset = new ArrayList<Dataset>();
try
{
// By this code fetch data from local database
Cursor c;
dbObject.Open();
c=dbObject.getallmessages(recipientid);
int countRow = c.getCount();
int counter = 0;
while(c.moveToNext())
{
msgboxitem = c.getString(0);
// number = c.getString(1);
timeitem = c.getString(2);
typeitem = c.getString(4);
datedbitem = c.getString(5);
try {
dataset.add(db.new Dataset(datedbitem, msgboxitem, timeitem, typeitem));
} catch (Exception e) {
e.printStackTrace();
}
}
dbObject.close();
// by below set data into listview into adapter
lv.setAdapter(ccAdpt=new Custom_Inbox_Adapter( getApplicationContext(),dataset,R.layout.row));
ccAdpt.notifyDataSetChanged();
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
Here my adapter coding...
public class Custom_Inbox_Adapter extends BaseAdapter{
private Context gContext;
private List<Dataset> gData;
private int rEsource;
public Custom_Inbox_Adapter(Context cnt, List<Dataset> data ,int resource){
this.gData = data;
this.gContext = cnt;
this.rEsource = resource;
}
#Override
public int getCount() {
return gData.size();
}
#Override
public Dataset getItem(int position) {
return gData.get(position);
}
#Override
public long getItemId(int position) {> return gData.get(position).hashCode();
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if(convertView == null){
LayoutInflater inflater = (LayoutInflater) gContext.getSystemService(gContext.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(rEsource, null);
TextView txtReceiveMsg = (TextView) convertView.findViewById(R.id.ReceiveMsg);
TextView txtReceiveTime = (TextView) convertView.findViewById(R.id.ReceiveTime);
TextView txtSendMsg = (TextView) convertView.findViewById(R.id.sendMsg);
TextView txtSendTime = (TextView) convertView.findViewById(R.id.senttime);
TextView date = (TextView) convertView.findViewById(R.id.date);
// layout text chat
RelativeLayout relSend = (RelativeLayout) convertView.findViewById(R.id.LinearReceive);
RelativeLayout relreceive = (RelativeLayout) convertView.findViewById(R.id.LinearSend);
// layout date chat
RelativeLayout LinearDATE= (RelativeLayout) convertView.findViewById(R.id.LinearDATE);
if(position == 0){
fetchdata= gData.get(position).getDate().trim();
date.setText(fetchdata);
}
else{
fetchdata = gData.get(position).getDate().trim();
dd = gData.get((position-1)).getDate().trim();
if(fetchdata.equalsIgnoreCase(dd))
{
LinearDATE.setVisibility(View.GONE);
}
else
{
LinearDATE.setVisibility(View.VISIBLE);
Log.w("INBOX READ", "INBOX_READ_ADAPTER::::(date for position '1'):"+fetchdata);
date.setText(fetchdata);
}
}
relreceive.setVisibility(View.GONE);
relSend.setVisibility(View.VISIBLE);
//txtReceiveNumber.setText(number);
txtReceiveMsg.setText(cutmsg);
txtReceiveTime.setText(time);
}
return convertView;
}
}