从Firebase数据创建ArrayList

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

import java.util.ArrayList;

// 获取Firebase数据库引用
DatabaseReference databaseRef = FirebaseDatabase.getInstance().getReference();

// 获取数据并创建ArrayList
databaseRef.child("data").addListenerForSingleValueEvent(new ValueEventListener() {
    @Override
    public void onDataChange(DataSnapshot dataSnapshot) {
        ArrayList<String> dataList = new ArrayList<>();
        
        for (DataSnapshot snapshot : dataSnapshot.getChildren()) {
            String data = snapshot.getValue(String.class);
            dataList.add(data);
        }
        
        // 对ArrayList进行进一步处理或使用
        // ...
    }

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