'On Android, how do you get the data from an email address in Firebase, then access the child, and from there you access the other Firebase data?
The following file explains better what I really mean. It's a screenshot of data sent from a dummy user in Firebase:
The code:
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
DatabaseReference ref = FirebaseDatabase.getInstance().getReference().child("Users");
// ref.addValueEventListener(new ValueEventListener() {
ref.orderByChild("Email").equalTo("[email protected]").addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot datas : dataSnapshot.getChildren()) {
String key = datas.getKey();
DatabaseReference ref = FirebaseDatabase.getInstance().getReference().child("Users").child(key);
Toast.makeText(getApplicationContext(), key, Toast.LENGTH_LONG).show();
ref.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
String name = dataSnapshot.child("Name").getValue().toString();
String state = dataSnapshot.child("State").getValue().toString();
String stateRegion = dataSnapshot.child("StateRegion").getValue().toString();
String telephone = String.valueOf(dataSnapshot.child("Telephone").getValue());
nameEditText.setText(name);
stateEditText.setText(state);
stateRegionEditText.setText(stateRegion);
telephoneEditText.setText(telephone);
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
}
});
}
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
}
});
}
});
Please, can some person help?
More information about data stored in the Firebase:
Sources
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Source: Stack Overflow
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