Helloeveryone,Ihaveaquestionabouthowtogettheparentnodethatwouldbeinthecaseoftheimage-Kt...Imadesomecodebutitdoesnotwork.
protectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_criar_cardapio);codigo=(TextView)findViewById(R.id.textView3);ref.child("Mesas").getParent();}
I want to assign this String to a variable to pass as a parameter to another function.
Data recovery in Firebase is done asynchronously, so it is not possible to assign variables out of scope where data recovery is being called.
codigo = (TextView) findViewById(R.id.textView3);
reference = LibraryClass.getFirebase().child("Mesas");
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
DataSnapshot snapshot : dataSnapshot.getChildren();
Log.i("TAG", "key" + snapshot.getKey()); // -Kt8cQVVuvZQ1BYFp7hX
codigo.setText(snapshot.getKey()); // -Kt8cQVVuvZQ1BYFp7hX
}
@Override
public void onCancelled(DatabaseError databaseError) {
Log.e("TAG", databaseError.getMessage());
}
});