add: 快递列表展示

cloudroam

2025-02-26 b653b90d4598ee2a65bceffa793bb75353b6d186

 app/src/main/java/com/example/firstapp/MainActivity.kt

@@ -66,10 +66,10 @@
//            logout()
//        }
        // 在此位置初始化 homeViewModel
        homeViewModel = ViewModelProvider(this).get(HomeViewModel::class.java)

        val navView: BottomNavigationView = binding.navView

//        homeViewModel = ViewModelProvider(this).get(HomeViewModel::class.java)
//
//        val navView: BottomNavigationView = binding.navView
        val navView = binding.navView
        val navController = findNavController(R.id.nav_host_fragment_activity_main)
        // Passing each menu ID as a set of Ids because each
        // menu should be considered as top level destinations.
@@ -91,34 +91,34 @@
            registerSmsReceiver()
            syncRecentSms()
        }
        val recyclerView = findViewById<RecyclerView>(R.id.recyclerView)
        recyclerView.layoutManager = LinearLayoutManager(this)
//        val recyclerView = findViewById<RecyclerView>(R.id.recyclerView)
//        recyclerView.layoutManager = LinearLayoutManager(this)
//
//        // 初始化适配器
//        adapter = MyAdapter()
//        recyclerView.adapter = adapter
//
//        // 观察 LiveData 数据
//        homeViewModel.codeList.observe(this) { codeList ->
//            // 如果 codeList 为 null，避免闪退
//            if (codeList != null) {
//                adapter.submitList(codeList)
//                // 滚动到顶部
//                recyclerView.scrollToPosition(0)
//            } else {
//                // 如果数据为空，可以显示空列表或其他处理
//                Toast.makeText(this, "No data available", Toast.LENGTH_SHORT).show()
//            }
//        }

        // 初始化适配器
        adapter = MyAdapter()
        recyclerView.adapter = adapter

        // 观察 LiveData 数据
        homeViewModel.codeList.observe(this) { codeList ->
            // 如果 codeList 为 null，避免闪退
            if (codeList != null) {
                adapter.submitList(codeList)
                // 滚动到顶部
                recyclerView.scrollToPosition(0)
            } else {
                // 如果数据为空，可以显示空列表或其他处理
                Toast.makeText(this, "No data available", Toast.LENGTH_SHORT).show()
            }
        }

        // 注册广播接收器来监听数据更新
        val filter = IntentFilter("com.example.firstapp.DATA_UPDATED")
        registerReceiver(object : BroadcastReceiver() {
            override fun onReceive(context: Context, intent: Intent) {
                // 数据已更新，刷新 LiveData
                homeViewModel.loadData()
            }
        }, filter)
//        // 注册广播接收器来监听数据更新
//        val filter = IntentFilter("com.example.firstapp.DATA_UPDATED")
//        registerReceiver(object : BroadcastReceiver() {
//            override fun onReceive(context: Context, intent: Intent) {
//                // 数据已更新，刷新 LiveData
//                homeViewModel.loadData()
//            }
//        }, filter)

    }