[英]How to retrieve values from a Firebase Realtime Database with same fields(only values of that particular field) into a text view in android?
[英]Android Firebase - retrieve particular value from Firebase realtime database
請執行下列操作:
mref = FirebaseDatabase.getInstance().getReference("user").child(USER_ID).child("likes");
mref.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
String likes = dataSnapshot.getValue(String.class);
//do what you want with the likes
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
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