Java Code Examples for com.google.firebase.database.DataSnapshot#getChildren()
The following examples show how to use
com.google.firebase.database.DataSnapshot#getChildren() .
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Example 1
| Source File: HomeActivity.java From wmn-safety with MIT License | 6 votes |
|
public void getUserName(final String UID) {
final StringBuffer buffer = new StringBuffer("");
ValueEventListener eventListener = new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
if (snapshot.getKey().equals("name")) {
buffer.append(snapshot.getValue());
}
}
mFullName = buffer.toString();
updateProfile();
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
};
mDatabaseReference.child("users").child(UID).addListenerForSingleValueEvent(eventListener);
}
Example 2
| Source File: DumpFeedback.java From white-label-event-app with Apache License 2.0 | 6 votes |
|
private void writeSessionRow(final DataSnapshot session) throws IOException {
final String session_id = session.getKey();
for (final DataSnapshot session_user : session.getChildren()) {
writer.write(session_id);
final String user_id = session_user.getKey();
writer.write('\t');
writer.write(user_id);
for (DataSnapshot rating : session_user.getChildren()) {
writer.write('\t');
final Object value = rating.getValue();
if (value != null) {
writer.write(value.toString());
}
}
writer.write('\n');
}
}
Example 3
| Source File: MainAppPage.java From NITKart with MIT License | 6 votes |
|
public static ArrayList<ShoppingItem> getAllItems(DataSnapshot dataSnapshot){
ArrayList<ShoppingItem> items = new ArrayList<ShoppingItem>();
for (DataSnapshot item : dataSnapshot.getChildren()) {
items.add(new ShoppingItem(
item.child("productID").getValue().toString(),
item.child("name").getValue().toString(),
item.child("type").getValue().toString(),
item.child("description").getValue().toString(),
Integer.valueOf(item.child("price").getValue().toString()),
Integer.valueOf(item.child("quantity").getValue().toString())
));
}
return items;
}
Example 4
| Source File: ResolverDataSnapshotList.java From gdx-fireapp with Apache License 2.0 | 6 votes |
|
@SuppressWarnings("unchecked")
static List resolve(DataSnapshot dataSnapshot) {
if (dataSnapshot.getValue() == null) {
throw new IllegalStateException();
}
List result = new ArrayList<>();
Iterable<DataSnapshot> dataSnapshots;
if (ClassReflection.isAssignableFrom(Map.class, dataSnapshot.getValue().getClass())) {
dataSnapshots = ((Map) dataSnapshot.getValue()).values();
} else {
dataSnapshots = dataSnapshot.getChildren();
}
for (Object o : dataSnapshots) {
if (o instanceof DataSnapshot) {
result.add(((DataSnapshot) o).getValue());
} else {
result.add(o);
}
}
return result;
}
Example 5
| Source File: ParseFirebaseData.java From FChat with MIT License | 6 votes |
|
public List<ChatMessage> getMessagesForSingleUser(DataSnapshot dataSnapshot) {
List<ChatMessage> chats = new ArrayList<>();
String text = null, msgTime = null, senderId = null, senderName = null, senderPhoto = null,
receiverId = null, receiverName = null, receiverPhoto = null;
Boolean read = Boolean.TRUE;
for (DataSnapshot data : dataSnapshot.getChildren()) {
text = data.child(NODE_TEXT).getValue().toString();
msgTime = data.child(NODE_TIMESTAMP).getValue().toString();
senderId = data.child(NODE_SENDER_ID).getValue().toString();
senderName = data.child(NODE_SENDER_NAME).getValue().toString();
senderPhoto = data.child(NODE_SENDER_PHOTO).getValue().toString();
receiverId = data.child(NODE_RECEIVER_ID).getValue().toString();
receiverName = data.child(NODE_RECEIVER_NAME).getValue().toString();
receiverPhoto = data.child(NODE_RECEIVER_PHOTO).getValue().toString();
//Node isRead is added later, may be null
read = data.child(NODE_IS_READ).getValue() == null ||
Boolean.parseBoolean(data.child(NODE_IS_READ).getValue().toString());
chats.add(
new ChatMessage(text, msgTime, receiverId, receiverName, receiverPhoto, senderId,
senderName, senderPhoto, read));
}
return chats;
}
Example 6
| Source File: BasketFragment.java From RestaurantApp with GNU General Public License v3.0 | 6 votes |
|
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
productBasket = new ProductBasket();
productBasket.setPiece(snapshot.getValue(ProductBasket.class).getPiece());
productBasket.setProductId(snapshot.getValue(ProductBasket.class).getProductId());
productBaskets.add(productBasket);
}
try {
Toast.makeText(getActivity(), productBaskets.size()+"", Toast.LENGTH_SHORT).show();
}catch (Exception e){
}
}
Example 7
| Source File: QueryTestIT.java From firebase-admin-java with Apache License 2.0 | 6 votes |
|
@Test
public void testStartAtWithTwoArguments()
throws TestFailure, ExecutionException, TimeoutException, InterruptedException {
DatabaseReference ref = IntegrationTestUtils.getRandomNode(masterApp);
new WriteFuture(ref,
MapBuilder.of(
"Walker", MapBuilder.of("name", "Walker", "score", 20, ".priority", 20),
"Michael", MapBuilder.of("name", "Michael", "score", 100, ".priority", 100)))
.timedGet();
DataSnapshot snap = TestHelpers.getSnap(ref.startAt(20, "Walker").limitToFirst(2));
List<String> expected = ImmutableList.of("Walker", "Michael");
int i = 0;
for (DataSnapshot child : snap.getChildren()) {
assertEquals(expected.get(i), child.getKey());
i++;
}
assertEquals(2, i);
}
Example 8
| Source File: NotificationChannel.java From Shipr-Community-Android with GNU General Public License v3.0 | 6 votes |
|
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
int local_count = 0;
for (DataSnapshot message : dataSnapshot.getChildren()) {
DeveloperMessage developerMessage = message.getValue(DeveloperMessage.class);
local_count++;
if (local_count > count) {
count = local_count;
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putInt("count", count);
editor.apply();
messages.add(developerMessage);
}
}
if (messages.size() > 0) Notify();
}
Example 9
| Source File: ParseFirebaseData.java From FChat with MIT License | 5 votes |
|
public ArrayList<Friend> getAllUser(DataSnapshot dataSnapshot) {
ArrayList<Friend> frnds = new ArrayList<>();
String name = null, id = null, photo = null;
for (DataSnapshot data : dataSnapshot.getChildren()) {
name = data.child(NODE_NAME).getValue().toString();
id = data.child(NODE_USER_ID).getValue().toString();
photo = data.child(NODE_PHOTO).getValue().toString();
if (!set.readSetting(Constants.PREF_MY_ID).equals(id)) {
frnds.add(new Friend(id, name, photo));
}
}
return frnds;
}
Example 10
| Source File: MainAppPage.java From NITKart with MIT License | 5 votes |
|
public static ArrayList<ShoppingItem> setUpList(DataSnapshot dataSnapshot) {
ArrayList<ShoppingItem> items = new ArrayList<ShoppingItem>();
for (DataSnapshot snap : dataSnapshot.getChildren()){
int itemPrice = -1, quantity = 0;
try{
itemPrice = Integer.valueOf(NumberFormat.getCurrencyInstance()
.parse(String.valueOf(snap.child("price").getValue()))
.toString());
} catch (ParseException e){
e.printStackTrace();
}
quantity = Integer.valueOf(snap.child("quantity").getValue().toString());
items.add(new ShoppingItem(
snap.child("productID").getValue().toString(),
snap.child("title").getValue().toString(),
snap.child("type").getValue().toString(),
snap.child("description").getValue().toString(),
itemPrice,
quantity
));
}
return items;
}
Example 11
| Source File: FirebaseEntityStore.java From buddysearch with Apache License 2.0 | 5 votes |
|
private <T> List<T> extractList(DataSnapshot dataSnapshot, Class<T> itemClass) {
Iterable<DataSnapshot> items = dataSnapshot.getChildren();
List<T> result = new ArrayList<>();
for (DataSnapshot item : items) {
result.add((extract(item, itemClass)));
}
return result;
}
Example 12
| Source File: DataSnapshotMapper.java From RxFirebase with Apache License 2.0 | 5 votes |
|
@Override
public List<U> call(final DataSnapshot dataSnapshot) {
List<U> items = new ArrayList<>();
for (DataSnapshot childSnapshot : dataSnapshot.getChildren()) {
items.add(getDataSnapshotTypedValue(childSnapshot, clazz));
}
return items;
}
Example 13
| Source File: DataSnapshotMapper.java From RxFirebase with Apache License 2.0 | 5 votes |
|
@Override
public LinkedHashMap<String, U> call(final DataSnapshot dataSnapshot) {
LinkedHashMap<String, U> items = new LinkedHashMap<>();
for (DataSnapshot childSnapshot : dataSnapshot.getChildren()) {
items.put(childSnapshot.getKey(), getDataSnapshotTypedValue(childSnapshot, clazz));
}
return items;
}
Example 14
| Source File: FirestackUtils.java From react-native-firestack with MIT License | 5 votes |
|
public static WritableArray getChildKeys(DataSnapshot snapshot) {
WritableArray childKeys = Arguments.createArray();
if (snapshot.hasChildren()) {
for (DataSnapshot child : snapshot.getChildren()) {
childKeys.pushString(child.getKey());
}
}
return childKeys;
}
Example 15
| Source File: ParseFirebaseData.java From FChat with MIT License | 4 votes |
|
public ArrayList<ChatMessage> getAllLastMessages(DataSnapshot dataSnapshot) {
// TODO: 11/09/18 Return only last messages of every conversation current user is
// involved in
ArrayList<ChatMessage> lastChats = new ArrayList<>();
ArrayList<ChatMessage> tempMsgList;
long lastTimeStamp;
String text = null, msgTime = null, senderId = null, senderName = null, senderPhoto = null,
receiverId = null, receiverName = null, receiverPhoto = null;
Boolean read = Boolean.TRUE;
for (DataSnapshot wholeChatData : dataSnapshot.getChildren()) {
tempMsgList = new ArrayList<>();
lastTimeStamp = 0;
for (DataSnapshot data : wholeChatData.getChildren()) {
msgTime = data.child(NODE_TIMESTAMP).getValue().toString();
if (Long.parseLong(msgTime) > lastTimeStamp) {
lastTimeStamp = Long.parseLong(msgTime);
}
text = data.child(NODE_TEXT).getValue().toString();
senderId = data.child(NODE_SENDER_ID).getValue().toString();
senderName = data.child(NODE_SENDER_NAME).getValue().toString();
senderPhoto = data.child(NODE_SENDER_PHOTO).getValue().toString();
receiverId = data.child(NODE_RECEIVER_ID).getValue().toString();
receiverName = data.child(NODE_RECEIVER_NAME).getValue().toString();
receiverPhoto = data.child(NODE_RECEIVER_PHOTO).getValue().toString();
//Node isRead is added later, may be null
read = data.child(NODE_IS_READ).getValue() == null ||
Boolean.parseBoolean(data.child(NODE_IS_READ).getValue().toString());
tempMsgList.add(
new ChatMessage(text, msgTime, receiverId, receiverName, receiverPhoto,
senderId, senderName, senderPhoto, read));
}
for (ChatMessage oneTemp : tempMsgList) {
if ((set.readSetting(Constants.PREF_MY_ID).equals(oneTemp.getReceiver().getId())) ||
(set.readSetting("myid").equals(oneTemp.getSender().getId()))) {
if (oneTemp.getTimestamp().equals(String.valueOf(lastTimeStamp))) {
lastChats.add(oneTemp);
}
}
}
}
return lastChats;
}
Example 16
| Source File: ParseFirebaseData.java From FChat with MIT License | 4 votes |
|
public ArrayList<ChatMessage> getAllUnreadReceivedMessages(DataSnapshot dataSnapshot) {
ArrayList<ChatMessage> lastChats = new ArrayList<>();
ArrayList<ChatMessage> tempMsgList;
long lastTimeStamp;
String text, msgTime, senderId, senderName, senderPhoto, receiverId, receiverName,
receiverPhoto;
Boolean read;
for (DataSnapshot wholeChatData : dataSnapshot.getChildren()) {
tempMsgList = new ArrayList<>();
lastTimeStamp = 0;
for (DataSnapshot data : wholeChatData.getChildren()) {
msgTime = data.child(NODE_TIMESTAMP).getValue().toString();
if (Long.parseLong(msgTime) > lastTimeStamp) {
lastTimeStamp = Long.parseLong(msgTime);
}
text = data.child(NODE_TEXT).getValue().toString();
senderId = data.child(NODE_SENDER_ID).getValue().toString();
senderName = data.child(NODE_SENDER_NAME).getValue().toString();
senderPhoto = data.child(NODE_SENDER_PHOTO).getValue().toString();
receiverId = data.child(NODE_RECEIVER_ID).getValue().toString();
receiverName = data.child(NODE_RECEIVER_NAME).getValue().toString();
receiverPhoto = data.child(NODE_RECEIVER_PHOTO).getValue().toString();
//Node isRead is added later, may be null
read = data.child(NODE_IS_READ).getValue() == null ||
Boolean.parseBoolean(data.child(NODE_IS_READ).getValue().toString());
tempMsgList.add(
new ChatMessage(text, msgTime, receiverId, receiverName, receiverPhoto,
senderId, senderName, senderPhoto, read));
}
for (ChatMessage oneTemp : tempMsgList) {
if ((set.readSetting(Constants.PREF_MY_ID).equals(oneTemp.getReceiver().getId()))) {
if (oneTemp.getTimestamp().equals(String.valueOf(lastTimeStamp)) &&
!oneTemp.isRead()) {
lastChats.add(oneTemp);
}
}
}
}
return lastChats;
}
Example 17
| Source File: ShoppingCartWindow.java From NITKart with MIT License | 4 votes |
|
private void setUpShoppingCart(DataSnapshot dataSnapshot) {
totalAmount = 0;
if (items != null){
items.clear();
} else {
items = new ArrayList<>();
}
for (DataSnapshot snap : dataSnapshot.getChildren()){
int itemPrice = -1, quantity = 0;
try{
itemPrice = Integer.valueOf(NumberFormat.getCurrencyInstance()
.parse(String.valueOf(snap.child("price").getValue()))
.toString());
} catch (ParseException e){
e.printStackTrace();
}
quantity = Integer.valueOf(snap.child("quantity").getValue().toString());
items.add(new ShoppingItem(
snap.child("productID").getValue().toString(),
snap.child("title").getValue().toString(),
snap.child("type").getValue().toString(),
snap.child("description").getValue().toString(),
itemPrice,
quantity
));
totalAmount += quantity*itemPrice;
}
ListView view = (ListView) findViewById(R.id.shoppingCartList);
// Now the Cart gets updated whenever the data changes in the server
view.setAdapter(new ShoppingCartAdapter(getApplicationContext(), items));
priceView.setText(NumberFormat.getCurrencyInstance().format(totalAmount));
}
Example 18
| Source File: FirestackDatabase.java From react-native-firestack with MIT License | 4 votes |
|
private <Any> Any castSnapshotValue(DataSnapshot snapshot) {
if (snapshot.hasChildren()) {
WritableMap data = Arguments.createMap();
for (DataSnapshot child : snapshot.getChildren()) {
Any castedChild = castSnapshotValue(child);
switch (castedChild.getClass().getName()) {
case "java.lang.Boolean":
data.putBoolean(child.getKey(), (Boolean) castedChild);
break;
case "java.lang.Long":
data.putDouble(child.getKey(), (Long) castedChild);
break;
case "java.lang.Double":
data.putDouble(child.getKey(), (Double) castedChild);
break;
case "java.lang.String":
data.putString(child.getKey(), (String) castedChild);
break;
case "com.facebook.react.bridge.WritableNativeMap":
data.putMap(child.getKey(), (WritableMap) castedChild);
break;
}
}
return (Any) data;
} else {
if (snapshot.getValue() != null) {
String type = snapshot.getValue().getClass().getName();
switch (type) {
case "java.lang.Boolean":
return (Any)((Boolean) snapshot.getValue());
case "java.lang.Long":
return (Any) ((Long) snapshot.getValue());
case "java.lang.Double":
return (Any)((Double) snapshot.getValue());
case "java.lang.String":
return (Any)((String) snapshot.getValue());
default:
return (Any) null;
}
} else {
return (Any) null;
}
}
}
Example 19
| Source File: FirestackUtils.java From react-native-firestack with MIT License | 4 votes |
|
public static <Any> Any castSnapshotValue(DataSnapshot snapshot) {
if (snapshot.hasChildren()) {
WritableMap data = Arguments.createMap();
for (DataSnapshot child : snapshot.getChildren()) {
Any castedChild = castSnapshotValue(child);
switch (castedChild.getClass().getName()) {
case "java.lang.Boolean":
data.putBoolean(child.getKey(), (Boolean) castedChild);
break;
case "java.lang.Long":
Long longVal = (Long) castedChild;
data.putDouble(child.getKey(), (double)longVal);
break;
case "java.lang.Double":
data.putDouble(child.getKey(), (Double) castedChild);
break;
case "java.lang.String":
data.putString(child.getKey(), (String) castedChild);
break;
case "com.facebook.react.bridge.WritableNativeMap":
data.putMap(child.getKey(), (WritableMap) castedChild);
break;
default:
Log.w(TAG, "Invalid type: " + castedChild.getClass().getName());
break;
}
}
return (Any) data;
} else {
if (snapshot.getValue() != null) {
String type = snapshot.getValue().getClass().getName();
switch (type) {
case "java.lang.Boolean":
return (Any)(snapshot.getValue());
case "java.lang.Long":
return (Any)(snapshot.getValue());
case "java.lang.Double":
return (Any)(snapshot.getValue());
case "java.lang.String":
return (Any)(snapshot.getValue());
default:
Log.w(TAG, "Invalid type: "+type);
return (Any) null;
}
}
return (Any) null;
}
}
Example 20
| Source File: DumpFeedback.java From white-label-event-app with Apache License 2.0 | 4 votes |
|
private void writeFeedbackTsv(final DataSnapshot data) throws IOException {
writer.write("session_id\tuser_id\n");
for (final DataSnapshot session : data.getChildren()) {
writeSessionRow(session);
}
}
