Wmchat/FriendListActivity.java at main · MagicGirl2000/Wmchat · GitHub

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package com.example.wmchat2026;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;

import org.json.JSONArray;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class FriendListActivity extends Activity {

    ListView lvFriends;
    TextView txtTitle;

    // ✅调试输出框
    TextView txtDebug;

    Handler handler = new Handler();

    List<HashMap<String, String>> friendList = new ArrayList<>();
    SimpleAdapter adapter;

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

        txtTitle = findViewById(R.id.txtTitle);
        txtTitle.setText("好友列表");

        // ✅绑定调试框
        txtDebug = findViewById(R.id.txtDebug);
        txtDebug.setText("正在加载好友列表...");

        lvFriends = findViewById(R.id.lvFriends);

        adapter = new SimpleAdapter(
                this,
                friendList,
                R.layout.item_friend,
                new String[]{"username", "unread"},
                new int[]{R.id.txtFriendName, R.id.txtUnread}
        );
        lvFriends.setAdapter(adapter);

        lvFriends.setOnItemClickListener((parent, view, position, id) -> {
            String friendName = friendList.get(position).get("username");
            Intent it = new Intent(FriendListActivity.this, ChatActivity.class);
            it.putExtra("friend", friendName);
            startActivity(it);
        });

        // 加载好友列表
        loadFriends();
    }

    // ✅调试输出函数（可以复制）
    private void debug(String msg) {
        handler.post(() -> txtDebug.setText(msg));
    }

    private void loadFriends() {
        new Thread(() -> {

            debug("开始请求好友列表...\nToken=" + Session.token);

            try {
                JSONObject res = ApiClient.post(
                        "http://wm.51ezu.com/wechat.php?action=list_friends",
                        "token=" + Session.token
                );

                debug("好友接口返回：\n\n" + res.toString(2));

                if (res.getInt("code") != 200) {
                    debug("加载失败：" + res.optString("msg"));
                    return;
                }

                Object obj = res.getJSONObject("data").get("friends");

                List<HashMap<String, String>> temp = new ArrayList<>();

                // ✅情况1：JSONArray
                if (obj instanceof JSONArray) {

                    JSONArray arr = (JSONArray) obj;

                    for (int i = 0; i < arr.length(); i++) {
                        String fname = arr.getString(i);

                        HashMap<String, String> map = new HashMap<>();
                        map.put("username", fname);
                        map.put("unread", "");

                        temp.add(map);
                    }
                }

                // ✅情况2：JSONObject
                else if (obj instanceof JSONObject) {

                    JSONObject o = (JSONObject) obj;
                    JSONArray keys = o.names();

                    if (keys != null) {
                        for (int i = 0; i < keys.length(); i++) {

                            String key = keys.getString(i);

                            // 跳过 requests / friends 等字段
                            if (!key.matches("\\d+")) continue;

                            String fname = o.getString(key);

                            HashMap<String, String> map = new HashMap<>();
                            map.put("username", fname);
                            map.put("unread", "");

                            temp.add(map);
                        }
                    }
                }

                else {
                    debug("friends 数据格式异常：" + obj.toString());
                    return;
                }

                handler.post(() -> {
                    friendList.clear();
                    friendList.addAll(temp);
                    adapter.notifyDataSetChanged();
                });

                debug("好友加载成功，共 " + temp.size() + " 人");

            } catch (Exception e) {
                debug("发生异常：\n" + e.getMessage());
            }

        }).start();
    }

}