I'm trying to filter specific user posts like this:
filter.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final BottomSheetDialog bottomSheetDialog = new BottomSheetDialog(
ProfileActivity.this, R.style.BottomSheetDialogTheme
);
View bottomSheetView = LayoutInflater.from(getApplicationContext())
.inflate(R.layout.layout_bottom_sheet,
(LinearLayout)findViewById(R.id.bottomSheetContainer)
);
final RadioButton b = bottomSheetView.findViewById(R.id.breakfast);
final RadioButton dinner = bottomSheetView.findViewById(R.id.dinner);
if(dinner.isChecked()){
Query reference = FirebaseDatabase.getInstance().getReference("posts").orderByChild("Meal");
reference.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot snapshot) {
if (snapshot.getValue().equals(dinner.getText().toString()))
{
Toast.makeText(ProfileActivity.this, dinner.getText() + "is clicked", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onCancelled(#NonNull DatabaseError error) {
}
});
}
I want to check whether the checked radioButton value is equal to Meal from database, the current code doesn't show the toast message which means the condition is not met even though it is supposed to. How can I write a proper query for this case?
Query reference = FirebaseDatabase.getInstance().getReference("Posts").orderByChild("Meal");
This will return list of matched data snapshot.
get each snapshot like
reference.addValueEventListener(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot snapshot) {
for (DataSnapshot ds : snapshot.getChildren()) {
if (ds.getValue().equals(dinner.getText().toString())) {
Toast.makeText(ProfileActivity.this, dinner.getText() + "is clicked", Toast.LENGTH_SHORT).show();
}
}
}
});
Related
I'm building a gallery app with firebase.
My problem is that when I delete the image, it deletes the document from firebase, but it does not delete it from the screen and the other images are copied on the screen, I could not handle it, I will show you the example below.
THİS GALLERY ADAPTER
#Override
public void onBindViewHolder(#NonNull GalleryHolder holder, int position) {
Picasso.get().load(galleryAdapterArrayList.get(position).downloadUrl).into(holder.imageView);
}
public class GalleryHolder extends RecyclerView.ViewHolder{
public Gallery gallery;
public CheckBox checkBox;
ImageView imageView;
public FirebaseFirestore firebaseFirestore;
public FirebaseUser firebaseUser;
public FirebaseAuth firebaseAuth;
public String Docıd;
public DocumentSnapshot snapshot;
public CollectionReference collectionReference;
public GalleryHolder(#NonNull View itemview) {
super(itemview);
imageView=itemview.findViewById(R.id.gallerLayoutimageview);
firebaseFirestore=FirebaseFirestore.getInstance();
firebaseAuth=FirebaseAuth.getInstance();
firebaseUser=FirebaseAuth.getInstance().getCurrentUser();
itemview.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
PopupMenu popupMenu=new PopupMenu(v.getContext(),v);
popupMenu.setGravity(Gravity.END);
popupMenu.getMenu().add(R.string.sil).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
#Override
public boolean onMenuItemClick(MenuItem menuItem) {
DocumentReference documentReference=firebaseFirestore.collection("Gallery").document(firebaseUser.getUid()).collection("myGallery").document(galleryAdapterArrayList.get(getPosition()).docId);
documentReference.delete().addOnSuccessListener(new OnSuccessListener<Void>() {
#Override
public void onSuccess(Void aVoid) {
System.out.println("dsadad");
notifyDataSetChanged();
}
}).addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
Toast.makeText(v.getContext(),R.string.notSilinmedi,Toast.LENGTH_SHORT);
}
});
return false;
}
});
popupMenu.show();
return false;
}
});
}
}
}
THİS GALLERY ACTIVITY
public void getData() {
firebaseFirestore.collection("Gallery").document(firebaseUser.getUid()).collection("myGallery").orderBy("date", Query.Direction.DESCENDING).addSnapshotListener(new EventListener<QuerySnapshot>() {
#Override
public void onEvent(#Nullable QuerySnapshot value, #Nullable FirebaseFirestoreException error) {
if (error != null) {
Toast.makeText(getApplicationContext(), error.getLocalizedMessage(), Toast.LENGTH_LONG).show();
}
if (value != null) {
for (DocumentSnapshot snapshot : value.getDocuments()) {
Map<String, Object> data = snapshot.getData();
String downloadUrl = (String) data.get("downloadUrl");
String docId = (String) data.get("docId");
checkBox=findViewById(R.id.checkimages);
GalleryModel galleryModel=new GalleryModel(docId,downloadUrl,checkBox);
galleryModelArrayList.add(galleryModel);
}
galleryAdapter.notifyDataSetChanged();
}
}
});
}
before deleting images
after deleting images
Reset activity
I'm trying to make a feature in my Android studio app which allows users to book appointment with a fixed list of doctors through Firebase realtime database. The problem is that FirebaseAuth.getInstance().getCurrentUser().getUid() is always pointing to same ID and so instead of new appointment details being added via children nodes in the parent node, the existing details in children nodes are being overwritten. Here's my code-
DoctorList.java-
public class DoctorList extends AppCompatActivity {
TextView doc1,doc2,doc3,doc4;
FirebaseAuth mAuth;
DatabaseReference patUser;
ProgressDialog loader;
FirebaseDatabase database= FirebaseDatabase.getInstance();
String Date;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_doctor_list);
Intent intent = getIntent();
// receive the value by getStringExtra() method
// and key must be same which is send by first
// activity
String email = intent.getStringExtra("message_key");//patient email
doc1=findViewById(R.id.doc1);
doc2=findViewById(R.id.doc2);
doc3=findViewById(R.id.doc3);
doc4=findViewById(R.id.doc4);
loader = new ProgressDialog(this);
mAuth = FirebaseAuth.getInstance();
FirebaseUser user= mAuth.getInstance().getCurrentUser();
patUser= database.getReference().child("Patient Appointments");
doc1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
loader.setMessage("Please wait....");
loader.setCanceledOnTouchOutside(false);
loader.show();
Intent intent= new Intent( DoctorList.this, Book.class);
intent.putExtra("message_key1", "elise#doc.com");
intent.putExtra("message_key2", email);
startActivity(intent);
// create the get Intent object
Intent intent1 = getIntent();
// receive the value by getStringExtra() method
// and key must be same which is send by first
// activity
Date = intent1.getStringExtra("message");
//Toast.makeText(PatientPage.this, str, Toast.LENGTH_SHORT).show();
String currentUserId = mAuth.getCurrentUser().getUid();
patUser= database.getReference().child("Patient Appointments").child(currentUserId);
//HashMap userInfo = new HashMap();
HashMap userInfo = new HashMap();
userInfo.put("Date",Date);
userInfo.put("Patient",email);
userInfo.put("Doctor","Dr.Elise Heather");
userInfo.put("Phone","5925866");
userInfo.put("Status","Pending");
patUser.updateChildren(userInfo).addOnCompleteListener(new OnCompleteListener() {
#Override
public void onComplete(#NonNull Task task) {
if (task.isSuccessful()){
Toast.makeText(DoctorList.this, "Little more to go....", Toast.LENGTH_SHORT).show();
}
else{
Toast.makeText(DoctorList.this, task.getException().toString(), Toast.LENGTH_SHORT).show();
}
}
});
loader.dismiss();
//Intent intent2= new Intent( DoctorList.this, PatientPage.class);
//startActivity(intent2);
}
});
}
}
Book.java-
public class Book extends AppCompatActivity {
TextView selectedDate;
Button calenderButton,ok;
FirebaseAuth mAuth;
DatabaseReference docUser;
ProgressDialog loader;
FirebaseDatabase database= FirebaseDatabase.getInstance();
String Date;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_book);
Intent intent = getIntent();
// receive the value by getStringExtra() method
// and key must be same which is send by first
// activity
String docEmail = intent.getStringExtra("message_key1");
String patEmail = intent.getStringExtra("message_key2");
selectedDate=findViewById(R.id.text);
calenderButton=findViewById(R.id.calender);
ok=findViewById(R.id.ok);
loader = new ProgressDialog(this);
mAuth = FirebaseAuth.getInstance();
FirebaseUser user= mAuth.getInstance().getCurrentUser();
docUser= database.getReference().child("Doctor Schedule");
MaterialDatePicker materialDatePicker=MaterialDatePicker.Builder.datePicker().
setTitleText("Select date").setSelection(MaterialDatePicker.todayInUtcMilliseconds()).build();
calenderButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
materialDatePicker.show(getSupportFragmentManager(),"Tag_Picker");
materialDatePicker.addOnPositiveButtonClickListener(new MaterialPickerOnPositiveButtonClickListener() {
#Override
public void onPositiveButtonClick(Object selection) {
selectedDate.setText(materialDatePicker.getHeaderText());
Date=materialDatePicker.getHeaderText();
}
});
}
});
ok.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (Date != null) {
String currentUserId = mAuth.getCurrentUser().getUid();
docUser = database.getReference().child("Doctor Schedule").child(currentUserId);
//HashMap userInfo = new HashMap();
HashMap userInfo = new HashMap();
userInfo.put("Date", Date);
userInfo.put("Patient", patEmail);
userInfo.put("Doctor", docEmail);
userInfo.put("Status", "Pending");
docUser.updateChildren(userInfo).addOnCompleteListener(new OnCompleteListener() {
#Override
public void onComplete(#NonNull Task task) {
if (task.isSuccessful()) {
Toast.makeText(Book.this, "Appointment booked", Toast.LENGTH_SHORT).show();
Intent intent= new Intent( Book.this, DoctorList.class);
intent.putExtra("message", Date);
startActivity(intent);
} else {
Toast.makeText(Book.this, task.getException().toString(), Toast.LENGTH_SHORT).show();
}
}
});
}
else {
Toast.makeText(Book.this, "Select date!", Toast.LENGTH_SHORT).show();
}
}
});
}
}
Suppose a user with email athy#gmail.com books appointment and in Firebase database there's already details of booking by another user nivi#gm.com . Then the details of the latter user in the parent node (ID) gets overwritten by user athy#gmail.com and it looks like this. I don't think I've written code for overwriting instead of updating since it works fine in other Android studio projects, so I'm guessing FirebaseAuth.getInstance().getCurrentUser().getUid() is the one always pointing to same ID which I've circled in the image.
How do I fix this?
I'm trying to send a value to the server when the connection doesn't exist, when it connects to the internet it runs fine and is saved to the server and sqlite. but the problem arises when switching state from offline to online. I send one value to the server when the connection is offline but when the state moves to online the value I sent earlier becomes multiple on the server while in the sqlite database only one value is stored.
this is my network state checker class
public class NetworkStateCheckerNama extends BroadcastReceiver {
//context and database helper object
private Context context;
private Database db;
ApiRequestData apiRequestData;
#Override
public void onReceive(Context context, Intent intent) {
this.context = context;
apiRequestData = ServiceGenerator.createBaseService(this.context, ApiRequestData.class);
db = new Database(context);
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
//if there is a network
if (activeNetwork != null) {
//if connected to wifi or mobile data plan
if (activeNetwork.getType() == ConnectivityManager.TYPE_WIFI || activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE) {
//getting all the unsynced user
Cursor cursor2 = db.getUnsyncedNama();
if (cursor2.moveToFirst()) {
do {
//calling the method to save the unsynced name to MySQL
Nama(
cursor2.getString(cursor2.getColumnIndexOrThrow(Database.KOLOM_NAMA_COBA)),
cursor2.getString(cursor2.getColumnIndexOrThrow(Database.KOLOM_NIP_COBA))
);
} while (cursor2.moveToNext());
}
}
}
}
private void Nama(final String nama,final String nip) {
//Call call = retrofit.create(APIInterface.class).saveName(name);
Call call = apiRequestData.nama_query(nama,nip);
call.enqueue(new Callback<Responses>() {
#Override
public void onResponse(Call<Responses> call, Response<Responses> response) {
if (response.code() == 200){
db.updateNamaStatus(nip, MainActivity.NAME_SYNCED_WITH_SERVER);
//sending the broadcast to refresh the list
context.sendBroadcast(new Intent(MainActivity.DATA_SAVED_BROADCAST_MAIN));
}
}
#Override
public void onFailure(Call<Responses> call, Throwable t) {
}
});
}
this is my MainActivity Class
public class MainActivity extends AppCompatActivity {
Session session;
Button buttonLogout,buttonKirim;
TextView textViewNamaMain, textViewNipMain;
EditText editTextNamaMain;
Database database;
private AdapterNama mAdapter;
private RecyclerView listviewNama;
ApiRequestData apiRequestData;
//1 means data is synced and 0 means data is not synced
public static final int NAME_SYNCED_WITH_SERVER = 1;
public static final int NAME_NOT_SYNCED_WITH_SERVER = 0;
//a broadcast to know weather the data is synced or not
public static final String DATA_SAVED_BROADCAST_MAIN = "com.example.myapplication.datasave2";
ArrayList<Nama> namaArray;
ArrayList<User> users;
BroadcastReceiver broadcastReceiver;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
session = new Session(this);
buttonLogout = findViewById(R.id.buttonLogout);
buttonKirim = findViewById(R.id.buttonKirim);
textViewNipMain = findViewById(R.id.textViewNipMain);
textViewNamaMain = findViewById(R.id.textViewNamaMain);
editTextNamaMain = findViewById(R.id.editTextTextNamaMain);
String nip = getIntent().getStringExtra("nip");
listviewNama = findViewById(R.id.lv_nama);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
listviewNama.setLayoutManager(layoutManager);
listviewNama.setItemAnimator(new DefaultItemAnimator());
database = new Database(this);
namaArray = new ArrayList<>();
users = new ArrayList<>();
apiRequestData = ServiceGenerator.createBaseService(this, ApiRequestData.class);
textViewNipMain.setText(nip);
registerReceiver(new NetworkStateCheckerNama(), new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
loadDaftarNama(nip);
broadcastReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
//loading the names again
loadDaftarNama(nip);
}
};
registerReceiver(broadcastReceiver, new IntentFilter(DATA_SAVED_BROADCAST_MAIN));
if(!session.isUserLogin()){
logout();
}
buttonKirim.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
SimpanKeServer();
}
});
buttonLogout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
logout();
}
});
users.clear();
Cursor cursor = database.getUsersWhereNip(nip);
if (cursor.moveToFirst()) {
do {
User user = new User(
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_NIP)),
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_NAMA)),
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_PASSWORD)),
cursor.getInt(cursor.getColumnIndexOrThrow(Database.KOLOM_STATUS))
);
users.add(user);
textViewNamaMain.setText(user.getNama());
} while (cursor.moveToNext());
}
}
private void SimpanKeServer(){
final ProgressDialog progressDialog = new ProgressDialog(this);
progressDialog.setMessage("Saving Name...");
progressDialog.show();
String nama = editTextNamaMain.getText().toString();
String nip = textViewNipMain.getText().toString();
Call call = apiRequestData.nama_query(nama,nip);
call.enqueue(new Callback<Responses>() {
#Override
public void onResponse(Call<Responses> call, Response<Responses> response) {
progressDialog.dismiss();
if(response.code() == 200){
//if there is a success
//storing the name to sqlite with status synced
SaveNamaToLocal(nama,nip,NAME_SYNCED_WITH_SERVER);
Toast.makeText(MainActivity.this, "Berhasil", Toast.LENGTH_SHORT).show();
}else {
progressDialog.dismiss();
//if there is some error
//saving the name to sqlite with status unsynced
SaveNamaToLocal(nama,nip,NAME_NOT_SYNCED_WITH_SERVER);
Toast.makeText(MainActivity.this, "Gagal", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onFailure(Call<Responses> call, Throwable t) {
progressDialog.dismiss();
SaveNamaToLocal(nama,nip,NAME_NOT_SYNCED_WITH_SERVER);
Toast.makeText(MainActivity.this, "Gagal", Toast.LENGTH_SHORT).show();
}
});
}
private void SaveNamaToLocal(String nama, String nip, int status){
database.Nama(nama,nip,status);
Nama namas = new Nama(nama,nip,status);
namaArray.add(namas);
refreshList();
}
private void loadDaftarNama(String nip) {
namaArray.clear();
Cursor cursor = database.getNama(nip);
if (cursor.moveToFirst()) {
do {
Nama nama = new Nama(
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_NAMA_COBA)),
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_NIP_COBA)),
cursor.getInt(cursor.getColumnIndexOrThrow(Database.KOLOM_STATUS_NAMA_COBA))
);
namaArray.add(nama);
} while (cursor.moveToNext());
}
mAdapter = new AdapterNama(this, namaArray);
listviewNama.setAdapter(mAdapter);
}
#SuppressLint("NotifyDataSetChanged")
private void refreshList() {
mAdapter.notifyDataSetChanged();
}
private void logout(){
session.updateUserLoginStatus(false);
finish();
startActivity(new Intent(MainActivity.this,LoginActivity.class));
}
}
this when online
enter image description here
enter image description here
this the problem when state internet switch from offline to online
enter image description here
enter image description here
Even in server send 3 same values
I'm sorry for my english and my question structure im new in programmer, and thank you for the answer
In my project user can sign in by enter their user name and password only.
But i stuck at forget password option.In my code i use addListenerForSingleValueEvent method for sign up.
I use DatabaseReference for store user info in firebase auto
users = FirebaseDatabase.getInstance().getReference("Users");
this users work like this screen shot
this code is given below:
users.addListenerForSingleValueEvent(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
//replace get method 27.01.19
if (dataSnapshot.child(user.getUserName()).exists()) {
Toast.makeText(MainActivity.this, "User Already Exist", Toast.LENGTH_SHORT).show();
} else {
users.child(user.getUserName())
.setValue(user);
Toast.makeText(MainActivity.this, "Registration Successfully", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
}
});
i set a alert dialogue for signUp This is the screen shot of signup
////////for registration dialog////////
private void showDialog() {
AlertDialog.Builder alertdialog = new AlertDialog.Builder(MainActivity.this);
alertdialog.setTitle("Sign Up");
alertdialog.setMessage("Please fill the credentials");
LayoutInflater layoutInflater = this.getLayoutInflater();
View view = layoutInflater.inflate(R.layout.signup, null);
editNewEmail = view.findViewById(R.id.newemail);
editNewUser = view.findViewById(R.id.newUsername);
editNewPassword = view.findViewById(R.id.newpassword);
alertdialog.setView(view);
alertdialog.setIcon(R.drawable.ic_account_circle_black_24dp);
alertdialog.setNegativeButton("No", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alertdialog.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
final User user = new User(editNewUser.getText().toString()
, editNewPassword.getText().toString()
, editNewEmail.getText().toString());
users.addListenerForSingleValueEvent(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
//replace get method 27.01.19
if (dataSnapshot.child(user.getUserName()).exists()) {
Toast.makeText(MainActivity.this, "User Already Exist", Toast.LENGTH_SHORT).show();
} else {
users.child(user.getUserName())
.setValue(user);
Toast.makeText(MainActivity.this, "Registration Successfully", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
}
});
dialog.dismiss();
}
});
alertdialog.show();
}
My sign in method is here Screenshot of signIn
btnSignIn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
users.addListenerForSingleValueEvent(new ValueEventListener() {
#Override
public void onDataChange(#NonNull DataSnapshot dataSnapshot) {
if (dataSnapshot.child(editUser.getText().toString()).exists()) {
User user = dataSnapshot.child(editUser.getText().toString()).getValue(User.class);
if (user.getPassword().equals(editPassword.getText().toString())) {
Intent intent = new Intent(MainActivity.this, Home.class);
Common.currentUser = user;
startActivity(intent);
finish();
} else
Toast.makeText(MainActivity.this, "Password Wrong", Toast.LENGTH_SHORT).show();
} else
Toast.makeText(MainActivity.this, "Please Register", Toast.LENGTH_SHORT).show();
}
#Override
public void onCancelled(#NonNull DatabaseError databaseError) {
}
});
}
});
But i stuck to make forget password option that helps user while they forget password and resent password by sending email addressThis is the demo screen shot of forget password
I understand that If i know that how to store email in firebase
authentication then i will manage this.
I try to store email address form signup form but i don't know how to store email in authentication from singnUp form in firebase.
i have clear concept about
mAuth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
#Override
public void onComplete(#NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
Log.d(TAG, "createUserWithEmail:success");
FirebaseUser user = mAuth.getCurrentUser();
updateUI(user);
} else {
// If sign in fails, display a message to the user.
Log.w(TAG, "createUserWithEmail:failure", task.getException());
Toast.makeText(EmailPasswordActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
updateUI(null);
}
// ...
}
});
but i need to know how to store email in firebase authentication without createUserWithEmailAndPassword
How do i get the ID of under the Cats
Try the following:
DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Cats");
reference.addListenerForSingleValueEvent(new ValueEventListener() {
#Override
public void onDataChange(DataSnapshot dataSnapshot) {
for(DataSnapshot datas: dataSnapshot.getChildren()){
String keys=datas.getKey();
}
}
#Override
public void onCancelled(DatabaseError databaseError) {
}
});
The dataSnapshot here is referring to Cats, then you loop inside of the direct children which is the id in this case and retrieve it using getKey()