如何将多个ArrayList<Hashmap>值组合到一个ListView中

// Step 1: 创建一个新的ArrayList<HashMap>
ArrayList<HashMap<String, String>> combinedList = new ArrayList<>();

// Step 2: 遍历每个ArrayList<HashMap>，将其内容添加到新的ArrayList<HashMap>中
for (ArrayList<HashMap<String, String>> list : arrayListList) {
    combinedList.addAll(list);
}

// Step 3: 创建自定义的Adapter类
public class CustomAdapter extends BaseAdapter {
    private ArrayList<HashMap<String, String>> data;

    public CustomAdapter(ArrayList<HashMap<String, String>> data) {
        this.data = data;
    }

    // Step 4: 重写相关方法
    // ...

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // Step 5: 获取对应位置的HashMap数据
        HashMap<String, String> item = data.get(position);

        // Step 6: 将数据显示在ListView的每一项中
        // ...

        return convertView;
    }
}

// Step 7: 在Activity中使用Adapter
CustomAdapter adapter = new CustomAdapter(combinedList);
ListView listView = findViewById(R.id.listView);
listView.setAdapter(adapter);
adapter.notifyDataSetChanged();