对包含更改数据的ListView ArrayAdapter进行排序

import android.content.Context;
import android.widget.ArrayAdapter;

import java.util.Comparator;
import java.util.List;

public class CustomArrayAdapter extends ArrayAdapter<String> implements Comparator<String> {

    public CustomArrayAdapter(Context context, int resource, List<String> objects) {
        super(context, resource, objects);
    }

    @Override
    public int compare(String lhs, String rhs) {
        // 根据需要定义排序规则，比如按照字符串的字母顺序进行排序
        return lhs.compareTo(rhs);
    }
}

import android.os.Bundle;
import android.widget.ListView;

import androidx.appcompat.app.AppCompatActivity;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private ListView listView;
    private CustomArrayAdapter adapter;
    private List<String> dataList;

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

        listView = findViewById(R.id.listView);

        // 创建数据集合
        dataList = new ArrayList<>();
        dataList.add("Apple");
        dataList.add("Orange");
        dataList.add("Banana");

        // 实例化自定义的ArrayAdapter类
        adapter = new CustomArrayAdapter(this, android.R.layout.simple_list_item_1, dataList);

        // 设置ArrayAdapter给ListView
        listView.setAdapter(adapter);

        // 对数据进行排序
        Collections.sort(dataList, adapter);

        // 更新ListView的显示
        adapter.notifyDataSetChanged();
    }
}