如何在不同的活动中查看Firebase数据(ListView格式)？

import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private ArrayAdapter<String> adapter;
    private List<String> data;

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

        // 初始化ListView和适配器
        listView = findViewById(R.id.listView);
        data = new ArrayList<>();
        adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, data);
        listView.setAdapter(adapter);

        // 获取Firebase数据
        FirebaseDatabase.getInstance().getReference("your_data_path").addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                data.clear();
                for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
                    String value = snapshot.getValue(String.class);
                    data.add(value);
                }
                adapter.notifyDataSetChanged();
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {
                // 处理取消操作
            }
        });
    }
}