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how to use getItemAtPosition in my spinner from firebase in google map using android studio


By : Jörg Krause
Date : September 16 2020, 03:00 PM
To fix the issue you can do I need help. Here i have load the hospital name from firebase to spinner how i want to getItemAtposition because when i click on hospital name it has to seleceted and clicked on getDirection button in my application so it will reload to the google map and mark on particular hospital which is selected so now how can do in my java code, but i know missing something but cant find me please help me out in advance , You can get selected value from spinner as below,
code :
String seleceted =parent.getItemAtPosition(position).toString(); //your code
String selected = name_list.get(position); //another way to get selected name
Query query = reference.orderByChild("name").equalTo(seleceted);
     query.addChildEventListener(new ChildEventListener() {
                       @Override
                       public void onChildAdded(@NonNull DataSnapshot dataSnapshot, @Nullable String s) {
                           double latitude = dataSnapshot.child("latitude").getValue();
                           double longitude = dataSnapshot.child("longitude").getValue();
                           setMarker(latitude,longitude);
                       }

                       @Override
                       public void onChildChanged(@NonNull DataSnapshot dataSnapshot, @Nullable String s) {

                       }

                       @Override
                       public void onChildRemoved(@NonNull DataSnapshot dataSnapshot) {

                       }

                       @Override
                       public void onChildMoved(@NonNull DataSnapshot dataSnapshot, @Nullable String s) {

                       }

                       @Override
                       public void onCancelled(@NonNull DatabaseError databaseError) {

                       }
                   });


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Android Google Firebase Database Querying on Spinner


By : Dinesh Kumar
Date : March 29 2020, 07:55 AM
will be helpful for those in need So I managed to fix my problem by adding a listener as suggested by Frank van Puffelen. The code below is inside onItemSelectedmethod
code :
mLocationAdapter.clear();

            querySpinner.addChildEventListener(new ChildEventListener() {
                @Override
                public void onChildAdded(DataSnapshot dataSnapshot, String s) {
                    locationCurrent = dataSnapshot.getValue(LocationCurrent.class);
                    mLocationAdapter.add(locationCurrent);
                }...
//Everything else is empty on addChildEventListener method so no point pasting it here

Using spinner.getItemAtPosition(pos) to control things


By : Theek Nami
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I find an example how can one find the selected item of a spinner when using a String Array here: , Use a switch on the position,
code :
switch(pos){
            case 1:
                spinner2.setVisibility(View.VISIBLE);
                spinner5.setVisibility(View.GONE);
                break;
            case 2:
                spinner5.setVisibility(View.VISIBLE);
                spinner2.setVisibility(View.GONE);
                break;
        }

Getting the key of its selected child value in a Spinner using Android Studio and Firebase


By : user3188335
Date : March 29 2020, 07:55 AM
To fix this issue I'm trying to get the key of a certain child value by allowing the user to choose from a Spinner. , Use .getKey() to get the key of the snapshot like:
code :
for(final DataSnapshot snapshot : dataSnapshot.getChildren()) {
    if (snapshot.child("Product_Name").getValue(String.class).equals("Steak")){
        String theKey = snapshot.getKey(); //This will return -LoUXnfUCEj4k4A3dkte
    }
}

how to get values from selected item spinner (Android Studio to Firebase)


By : jeffbhamilton
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , First of all, thankyou for clicking my question, hope you can help me to resolve my problem here :( , Your reference is at the root node:
code :
mDatabase = FirebaseDatabase.getInstance().getReference();
 mDatabase.child("PRODUCTS").child("PROD1").addValueEventListener(new ValueEventListener() {
    @Override
 public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
       selectedproductprice = dataSnapshot.child("productprice").getValue().toString();
       }

   @Override
 public void onCancelled(@NonNull DatabaseError databaseError) {
   }
  });

What type of Object does Spinner.getItemAtPosition(...) return?


By : user4645421
Date : March 29 2020, 07:55 AM
Hope that helps I assume the "parent" you are talking about is a Spinner. In this case:
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