I've been with this problem for days, I hope you can help me:)
I have a code in Android Studio where I connect to Firebase, in which I upload values, modify and bring them. I have tried my application and it works well for some values, then for another value it does not work and then for other values yes, and so on. I do not understand why that would happen if the code is the same for all values. I leave here the code for your visualization, thanks:)
The methods to collect () and recover () are methods where I assign to an ArrayList the numbers 1 and 0 depending on whether a number of Radio Buttons were pressed, 1 is if the Radio button is pressed and the 0 is if it is not pressed.
public void metodo_subir(View v) {
recolectar();// recolecta los numeros delos RadioButtons
codigoos=ArrayPostvaciado.toString();
mRootReference.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
String todo = dataSnapshot.getValue().toString();
if (todo.contains("LiberaPostvaciado")) {
if (todo.contains(ubicacion)) {
if (todo.contains(elemento)) {
p = 1;
}
}
} else {
p = 0;
}
}
if (p == 0) {
subir(codigoos);
} else if (p == 1) {
modificaar(codigoos);
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
public void subir(String codigoos){
Map<String, Object> datosLibPostvaciado = new HashMap<>();
datosLibPostvaciado.put("Elemento", elemento);
datosLibPostvaciado.put("Procedimiento", procedimiento);
datosLibPostvaciado.put("Ubicacion", ubicacion);
datosLibPostvaciado.put("Codigo", codigoos);
mRootReference.child("LiberaPostvaciado").push().setValue(datosLibPostvaciado);
}
public void modificaar(String codigoos) {
final String codigoooos=codigoos;
Query q = FirebaseDatabase.getInstance().getReference("LiberaPostvaciado").orderByChild("Elemento").equalTo(elemento);
q.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
//if el recorrido contiene a la ubicacion cojo ese key y en ese key cambio el status
String recorrido = snapshot.getValue().toString();
if (recorrido.contains(ubicacion)) {
klave = snapshot.getKey();
}
FirebaseDatabase.getInstance().getReference("LiberaPostvaciado").child(klave).child("Codigo").setValue(codigoooos);
}
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
Here is the method where I bring the data from the Firebase
public void metodo_cargar_data(View v){ //METODO DONDE TRAIGO LOS DATOS DESDE EL FIREBASE
mRootReference.child("LiberaPostvaciado").addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
String todo = snapshot.getValue().toString();
if (todo.contains(elemento)){
if (todo.contains(ubicacion)){
PojoLibVaciado pojo = snapshot.getValue(PojoLibVaciado.class);
String codiggos=pojo.getCodigo();
recuperar(codiggos);
}
}
}}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
}
This is how the Firebase is displayed:
