java - How to display the firebase data in listview?

Question

I tried to receive the data from firebase using others people code but the app will be force stop. And I dont understand their code because I'm still new in android development. Here my code that only display the data in logcat but I will it display into a listview pls help me thanks.

This is xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:textAlignment="center"
        android:textSize="25sp"
        android:text="Time Table"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tvUserInfo"/>

    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/listview"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginBottom="11dp" />

</LinearLayout>

This is the java class:

DatabaseReference dref;
ListView listview;
ArrayList<String> list=new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference();
    DatabaseReference usersRef = rootRef.child("Time");
    ValueEventListener eventListener = new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            for(DataSnapshot ds : dataSnapshot.getChildren()) {
                String email = ds.child("email").getValue(String.class);
                String time = ds.child("time").getValue(String.class);
                Log.d("TAG", email + " / " + time); // logcat check value
            }
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {}
    };
    usersRef.addListenerForSingleValueEvent(eventListener);
}

This picture is the firebase value that i want to display in list view (email and time)

The thing I want to do is display the data from firebase in listview

Answer 1

You can use FirebaseListAdapter for display data in list.

Like :

Firebase ref = new Firebase("https://<yourapp>.firebaseio.com");
     ListAdapter adapter = new FirebaseListAdapter<ChatMessage>(this, ChatMessage.class, android.R.layout.two_line_list_item, mRef)
     {
         protected void populateView(View view, ChatMessage chatMessage)
         {
             ((TextView)view.findViewById(android.R.id.text1)).setText(chatMessage.getName());
             ((TextView)view.findViewById(android.R.id.text2)).setText(chatMessage.getMessage());
         }
     };
     listView.setListAdapter(adapter);