Examples with ValueEventListener com.google.firebase.database.ValueEventListener used on opensource projects

Example 21 with ValueEventListener

use of com.google.firebase.database.ValueEventListener in project MadMax by deviz92.

the class ExpenseEdit method updateExpense.

private boolean updateExpense(final Expense expense) {
    Log.i(TAG, "update expense");
    if (!validateForm()) {
        Log.i(TAG, "submitted form is not valid");
        Toast.makeText(this, getString(R.string.invalid_form), Toast.LENGTH_SHORT).show();
        return false;
    }
    String newDescription = expenseDescriptionView.getText().toString();
    String newCurrency = expenseCurrencyView.getSelectedItem().toString();
    if (!newDescription.isEmpty() && (expense.getDescription() == null || !expense.getDescription().equals(newDescription))) {
        expense.setDescription(newDescription);
        databaseReference.child(expense_type).child(expense.getID()).child("description").setValue(expense.getDescription());
    }
    if (EXPENSE_TYPE.equals(Event.EventType.PENDING_EXPENSE_EDIT)) {
        Double newAmount = Double.valueOf(expenseAmountView.getText().toString());
        if (!newAmount.isNaN() && (expense.getAmount() == null || !expense.getAmount().equals(newAmount))) {
            expense.setAmount(newAmount);
            databaseReference.child(expense_type).child(expense.getID()).child("amount").setValue(expense.getAmount());
        }
    }
    if (!newCurrency.isEmpty() && (expense.getCurrency() == null || !expense.getCurrency().equals(newCurrency))) {
        expense.setCurrency(newCurrency);
        databaseReference.child(expense_type).child(expense.getID()).child("currency").setValue(expense.getCurrency());
    }
    if (IMAGE_CHANGED) {
        // for saving image
        StorageReference uExpenseImageImageFilenameRef = storageReference.child(expense_type).child(expense.getID()).child(expense.getID() + "_expensePhoto.jpg");
        // Get the data from an ImageView as bytes
        expenseImageView.setDrawingCacheEnabled(true);
        expenseImageView.buildDrawingCache();
        Bitmap bitmap = expenseImageView.getDrawingCache();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        byte[] data = baos.toByteArray();
        UploadTask uploadTask = uExpenseImageImageFilenameRef.putBytes(data);
        uploadTask.addOnFailureListener(new OnFailureListener() {

            @Override
            public void onFailure(@NonNull Exception exception) {
                // todo Handle unsuccessful uploads
                Log.e(TAG, "image upload failed");
            }
        }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                // taskSnapshot.getMetadata() contains file metadata such as size, content-type, and download URL.
                expense.setExpensePhoto(taskSnapshot.getMetadata().getDownloadUrl().toString());
                databaseReference.child(expense_type).child(expense.getID()).child("expensePhoto").setValue(expense.getExpensePhoto());
            }
        });
    }
    if (BILL_CHANGED) {
        // for saving image
        StorageReference uExpenseBillImageFilenameRef = storageReference.child(expense_type).child(expense.getID()).child(expense.getID() + "billPhoto.jpg");
        // Get the data from an ImageView as bytes
        expenseBillView.setDrawingCacheEnabled(true);
        expenseBillView.buildDrawingCache();
        Bitmap bitmap = expenseBillView.getDrawingCache();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        byte[] data = baos.toByteArray();
        UploadTask uploadTask = uExpenseBillImageFilenameRef.putBytes(data);
        uploadTask.addOnFailureListener(new OnFailureListener() {

            @Override
            public void onFailure(@NonNull Exception exception) {
                // todo Handle unsuccessful uploads
                Log.e(TAG, "image upload failed");
            }
        }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                // taskSnapshot.getMetadata() contains file metadata such as size, content-type, and download URL.
                expense.setBillPhoto(taskSnapshot.getMetadata().getDownloadUrl().toString());
                databaseReference.child(expense_type).child(expense.getID()).child("billPhoto").setValue(expense.getExpensePhoto());
            }
        });
    }
    // add event for EXPENSE_EDIT / PENDING_EXPENSE_EDIT
    databaseReference.child(expense_type).child(expense.getID()).addListenerForSingleValueEvent(new ValueEventListener() {

        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            User currentUser = MainActivity.getCurrentUser();
            Event event = new Event(dataSnapshot.child("groupID").getValue(String.class), EXPENSE_TYPE, currentUser.getName() + " " + currentUser.getSurname(), dataSnapshot.child("description").getValue(String.class));
            event.setDate(new SimpleDateFormat("yyyy.MM.dd").format(new java.util.Date()));
            event.setTime(new SimpleDateFormat("HH:mm").format(new java.util.Date()));
            FirebaseUtils.getInstance().addEvent(event);
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
            Log.w(TAG, databaseError.toException());
        }
    });
    return true;
}

Example 22 with ValueEventListener

use of com.google.firebase.database.ValueEventListener in project MadMax by deviz92.

the class FriendsFragment method onCreateView.

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    final String activityName = getActivity().getClass().getSimpleName();
    Log.d(TAG, "Sono nella activity: " + activityName);
    final View view = inflater.inflate(R.layout.skeleton_list, container, false);
    databaseReference = FirebaseDatabase.getInstance().getReference();
    friends.clear();
    setInterface((OnItemClickInterface) getActivity(), (OnItemLongClickInterface) getActivity());
    RecyclerView.ItemDecoration divider = new InsetDivider.Builder(getContext()).orientation(InsetDivider.VERTICAL_LIST).dividerHeight(getResources().getDimensionPixelSize(R.dimen.divider_height)).color(ContextCompat.getColor(getContext(), R.color.colorDivider)).insets(getResources().getDimensionPixelSize(R.dimen.divider_inset), 0).overlay(true).build();
    recyclerView = (RecyclerView) view.findViewById(R.id.rv_skeleton);
    layoutManager = new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false);
    recyclerView.setLayoutManager(layoutManager);
    recyclerView.addItemDecoration(divider);
    friendsViewAdapter = new FriendsViewAdapter(this.getContext(), this, this, friends, groupDetail);
    recyclerView.setAdapter(friendsViewAdapter);
    // Se sono in MainActivity visualizzo lista degli amici
    if (activityName.equals("MainActivity")) {
        query = databaseReference.child("users").child(MainActivity.getCurrentUID()).child("friends");
    } else // Se sono dentro un gruppo, visualizzo lista membri del gruppo
    if (activityName.equals("GroupDetailActivity")) {
        Bundle b = this.getArguments();
        if (b != null) {
            groupID = b.getString("groupID");
            query = databaseReference.child("groups").child(groupID).child("members");
        }
    }
    Log.d(TAG, "query: " + query);
    groupMembersListener = query.addValueEventListener(new ValueEventListener() {

        @Override
        public void onDataChange(final DataSnapshot externalDataSnapshot) {
            // svuoto la map, così se viene eliminato uno user dal db, non viene tenuto nella map che si ricarica da zero
            friends.clear();
            for (final DataSnapshot friendSnapshot : externalDataSnapshot.getChildren()) {
                // getFriend(friendSnapshot.getKey());
                if (activityName.equals("MainActivity")) {
                    Log.d(TAG, "key: " + friendSnapshot.getKey());
                    Log.d(TAG, "value: " + friendSnapshot.getValue());
                    if (!listenedFriends)
                        listenedFriends = true;
                    // Log.d(TAG,  friendSnapshot.child("deleted").getValue() + " ");
                    deleted = friendSnapshot.child("deleted").getValue(Boolean.class);
                    if (deleted == null) {
                        deleted = true;
                    }
                    if (deleted)
                        Log.d(TAG, friendSnapshot.getKey() + " is cancelled");
                } else if (activityName.equals("GroupDetailActivity")) {
                    deleted = friendSnapshot.child("deleted").getValue(Boolean.class);
                    if (deleted == null) {
                        deleted = true;
                    }
                    // Se sono negli amici "generali" e non nei membri di un gruppo, non c'è il campo deleted, quindi sarà null
                    if (!listenedGroups.contains(groupID))
                        listenedGroups.add(groupID);
                }
                if (!deleted) {
                    final String id = friendSnapshot.getKey();
                    databaseReference.child("users").child(id).addValueEventListener(new ValueEventListener() {

                        @Override
                        public void onDataChange(DataSnapshot dataSnapshot) {
                            String name = dataSnapshot.child("name").getValue(String.class);
                            String surname = dataSnapshot.child("surname").getValue(String.class);
                            String profileImage = dataSnapshot.child("image").getValue(String.class);
                            if (activityName.equals("MainActivity")) {
                                User u = new User();
                                u.setID(friendSnapshot.getKey());
                                u.setName(name);
                                u.setSurname(surname);
                                u.setProfileImage(profileImage);
                                if (!deleted)
                                    friends.put(id, u);
                                else
                                    friends.remove(id);
                                friendsViewAdapter.update(friends);
                                friendsViewAdapter.notifyDataSetChanged();
                            } else if (activityName.equals("GroupDetailActivity")) {
                                getUserAndGroupBalance(id, name, surname, profileImage, groupID);
                            }
                        }

                        @Override
                        public void onCancelled(DatabaseError databaseError) {
                        }
                    });
                }
            }
            friendsViewAdapter.update(friends);
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
            Log.w(TAG, databaseError.getMessage());
        }
    });
    Log.d(TAG, "dopo setAdapter");
    return view;
}

Example 23 with ValueEventListener

use of com.google.firebase.database.ValueEventListener in project MadMax by deviz92.

the class FirebaseUtils method removeExpenseFirebase.

public void removeExpenseFirebase(final String expenseID, final Context context) {
    databaseReference.child("expenses").child(expenseID).addValueEventListener(new ValueEventListener() {

        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            String groupID = dataSnapshot.child("groupID").getValue(String.class);
            // aggiunto da riky per mandare la notifica a tutti tranne a chi ha eliminato la spesa
            databaseReference.child("expenses").child(expenseID).child("deletedBy").setValue(MainActivity.getCurrentUID());
            // Elimino spesa dal gruppo
            databaseReference.child("groups").child(groupID).child("expenses").child(expenseID).setValue(false);
            // Per ogni participant elimino la spesa dal suo elenco spese
            for (DataSnapshot participantSnapshot : dataSnapshot.child("participants").getChildren()) {
                String participantID = participantSnapshot.getKey();
                databaseReference.child("users").child(participantID).child("expenses").child(expenseID).setValue(false);
            }
            // Elimino commenti sulla spesa
            databaseReference.child("comments").child(groupID).removeValue();
            // Elimino spesa
            databaseReference.child("expenses").child(expenseID).child("deleted").setValue(true);
            // Toast.makeText(context,context.getString(R.string.expense_removed),Toast.LENGTH_SHORT).show();
            // add event for EXPENSE_REMOVE
            databaseReference.child("expenses").child(expenseID).addListenerForSingleValueEvent(new ValueEventListener() {

                @Override
                public void onDataChange(DataSnapshot dataSnapshot) {
                    User currentUser = MainActivity.getCurrentUser();
                    Event event = new Event(dataSnapshot.child("groupID").getValue(String.class), Event.EventType.EXPENSE_REMOVE, currentUser.getName() + " " + currentUser.getSurname(), dataSnapshot.child("description").getValue(String.class));
                    event.setDate(new SimpleDateFormat("yyyy.MM.dd").format(new java.util.Date()));
                    event.setTime(new SimpleDateFormat("HH:mm").format(new java.util.Date()));
                    FirebaseUtils.getInstance().addEvent(event);
                }

                @Override
                public void onCancelled(DatabaseError databaseError) {
                    Log.w(TAG, databaseError.toException());
                }
            });
        /*Intent intent = new Intent(context, GroupDetailActivity.class);
                intent.putExtra("groupID", groupID);
                intent.putExtra("userID", MainActivity.getCurrentUID());
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                context.startActivity(intent);*/
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
        }
    });
}

Example 24 with ValueEventListener

use of com.google.firebase.database.ValueEventListener in project MadMax by deviz92.

the class FirebaseUtils method removePendingExpenseFirebase.

public void removePendingExpenseFirebase(final String expenseID, final Context context) {
    databaseReference.child("proposedExpenses").child(expenseID).addValueEventListener(new ValueEventListener() {

        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            String groupID = dataSnapshot.child("groupID").getValue(String.class);
            // Elimino spesa pending dal gruppo
            databaseReference.child("groups").child(groupID).child("proposedExpenses").child(expenseID).setValue(false);
            // Per ogni participant elimino la spesa pending dal suo elenco spese pending
            for (DataSnapshot participantSnapshot : dataSnapshot.child("participants").getChildren()) {
                String participantID = participantSnapshot.getKey();
                databaseReference.child("users").child(participantID).child("proposedExpenses").child(expenseID).setValue(false);
            }
            // todo Elimino commenti sulla spesa pending
            // databaseReference.child("comments").child(groupID).removeValue();
            // Elimino spesa pending
            databaseReference.child("proposedExpenses").child(expenseID).child("deleted").setValue(true);
            // Toast.makeText(context, context.getString(R.string.expense_removed), Toast.LENGTH_SHORT).show();
            // add event for PENDING_EXPENSE_REMOVE
            databaseReference.child("proposedExpenses").child(expenseID).addListenerForSingleValueEvent(new ValueEventListener() {

                @Override
                public void onDataChange(DataSnapshot dataSnapshot) {
                    User currentUser = MainActivity.getCurrentUser();
                    Event event = new Event(dataSnapshot.child("groupID").getValue(String.class), Event.EventType.PENDING_EXPENSE_REMOVE, currentUser.getName() + " " + currentUser.getSurname(), dataSnapshot.child("description").getValue(String.class));
                    event.setDate(new SimpleDateFormat("yyyy.MM.dd").format(new java.util.Date()));
                    event.setTime(new SimpleDateFormat("HH:mm").format(new java.util.Date()));
                    FirebaseUtils.getInstance().addEvent(event);
                }

                @Override
                public void onCancelled(DatabaseError databaseError) {
                    Log.w(TAG, databaseError.toException());
                }
            });
        /*Intent intent = new Intent(context, MainActivity.class);
                intent.putExtra("currentFragment", 2);
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                context.startActivity(intent);*/
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
        }
    });
}

Example 25 with ValueEventListener

use of com.google.firebase.database.ValueEventListener in project quickstart-android by firebase.

the class NewPostActivity method submitPost.

private void submitPost() {
    final String title = mTitleField.getText().toString();
    final String body = mBodyField.getText().toString();
    // Title is required
    if (TextUtils.isEmpty(title)) {
        mTitleField.setError(REQUIRED);
        return;
    }
    // Body is required
    if (TextUtils.isEmpty(body)) {
        mBodyField.setError(REQUIRED);
        return;
    }
    // Disable button so there are no multi-posts
    setEditingEnabled(false);
    Toast.makeText(this, "Posting...", Toast.LENGTH_SHORT).show();
    // [START single_value_read]
    final String userId = getUid();
    mDatabase.child("users").child(userId).addListenerForSingleValueEvent(new ValueEventListener() {

        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            // Get user value
            User user = dataSnapshot.getValue(User.class);
            // [START_EXCLUDE]
            if (user == null) {
                // User is null, error out
                Log.e(TAG, "User " + userId + " is unexpectedly null");
                Toast.makeText(NewPostActivity.this, "Error: could not fetch user.", Toast.LENGTH_SHORT).show();
            } else {
                // Write new post
                writeNewPost(userId, user.username, title, body);
            }
            // Finish this Activity, back to the stream
            setEditingEnabled(true);
            finish();
        // [END_EXCLUDE]
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
            Log.w(TAG, "getUser:onCancelled", databaseError.toException());
            // [START_EXCLUDE]
            setEditingEnabled(true);
        // [END_EXCLUDE]
        }
    });
// [END single_value_read]
}