将firebase中的数据添加到android中的listview

public class MyAdapter extends BaseAdapter {
    private Context context;
    private ArrayList<String> dataList;

    public MyAdapter(Context context, ArrayList<String> dataList) {
        this.context = context;
        this.dataList = dataList;
    }

    @Override
    public int getCount() {
        return dataList.size();
    }

    @Override
    public Object getItem(int position) {
        return dataList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            LayoutInflater inflater = LayoutInflater.from(context);
            convertView = inflater.inflate(android.R.layout.simple_list_item_1, parent, false);
        }

        TextView textView = convertView.findViewById(android.R.id.text1);
        textView.setText(dataList.get(position));

        return convertView;
    }

    public void fetchDataFromFirebase() {
        DatabaseReference databaseRef = FirebaseDatabase.getInstance().getReference("your_data_path");
        databaseRef.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                dataList.clear();
                for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
                    String data = snapshot.getValue(String.class);
                    dataList.add(data);
                }
                notifyDataSetChanged();
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {
                Log.e("Firebase", "Failed to fetch data from Firebase: " + databaseError.getMessage());
            }
        });
    }
}

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private MyAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        listView = findViewById(R.id.listView);
        ArrayList<String> dataList = new ArrayList<>();
        adapter = new MyAdapter(this, dataList);
        listView.setAdapter(adapter);

        adapter.fetchDataFromFirebase();
    }
}