package com.example.firstapp.ui.home
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import android.content.BroadcastReceiver
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import android.content.Context
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import android.content.Intent
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import android.content.IntentFilter
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import android.os.Bundle
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import android.widget.TextView
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import androidx.core.content.ContextCompat
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import androidx.fragment.app.Fragment
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import androidx.lifecycle.ViewModelProvider
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import androidx.recyclerview.widget.LinearLayoutManager
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import androidx.recyclerview.widget.RecyclerView
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import com.example.firstapp.R
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import com.example.firstapp.activity.PickupActivity
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import com.example.firstapp.adapter.ExpressAdapter
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import com.example.firstapp.adapter.FinanceAdapter
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import com.example.firstapp.core.Core
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import com.example.firstapp.databinding.FragmentHomeBinding
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class HomeFragment : Fragment() {
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private var _binding: FragmentHomeBinding? = null
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// This property is only valid between onCreateView and
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// onDestroyView.
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private val binding get() = _binding!!
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private lateinit var homeViewModel: HomeViewModel
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private lateinit var expressAdapter: ExpressAdapter
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private lateinit var financeAdapter: FinanceAdapter
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// private lateinit var memorialAdapter: MemorialAdapter
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private lateinit var dataUpdateReceiver: BroadcastReceiver
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//onCreateView这个方法创建后被调用，通常是初始化视图组件和观察者
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override fun onCreateView(
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inflater: LayoutInflater,
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container: ViewGroup?,
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savedInstanceState: Bundle?
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): View {
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_binding = FragmentHomeBinding.inflate(inflater, container, false)
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return binding.root
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}
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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//通过 ViewModelProvider 获取 HomeViewModel 的实例，以便在视图中使用。
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homeViewModel = ViewModelProvider(this).get(HomeViewModel::class.java)
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//调用这个方法来设置 RecyclerView用于设置 RecyclerView 的布局和适配器。
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setupRecyclerViews()
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setupTabSwitching()
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//调用这个方法来观察 ViewModel 中的数据变化
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observeViewModelData()
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}
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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// 创建广播接收器
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dataUpdateReceiver = object : BroadcastReceiver() {
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override fun onReceive(context: Context, intent: Intent) {
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if (intent.action == "com.example.firstapp.DATA_UPDATED") {
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// 收到数据更新广播时重新加载数据
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homeViewModel.loadExpressData()
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}
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}
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}
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}
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private fun setupRecyclerViews() {
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binding.expressRecycler.apply {
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layoutManager = LinearLayoutManager(context)
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expressAdapter = ExpressAdapter()
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adapter = expressAdapter
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// 设置点击监听
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expressAdapter.setOnPackageClickListener { group, pack ->
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// 跳转到取件页面
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val intent = Intent(requireContext(), PickupActivity::class.java).apply {
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putExtra("station_name", group.stationName)
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putExtra("company", pack.company)
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}
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startActivity(intent)
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}
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}
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// 财务列表
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binding.financeRecycler.apply {
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layoutManager = LinearLayoutManager(context)
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financeAdapter = FinanceAdapter()
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adapter = financeAdapter
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// 设置初始状态 - 添加这行
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binding.financeContent.visibility = View.GONE
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// 设置点击监听
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financeAdapter.setOnPackageClickListener { group, pack ->
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// 跳转到取件页面
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val intent = Intent(requireContext(), PickupActivity::class.java).apply {
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putExtra("station_name", group.stationName)
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putExtra("company", pack.company)
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}
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startActivity(intent)
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}
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}
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//
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// // 纪念日列表
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// binding.memorialRecycler.apply {
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// layoutManager = LinearLayoutManager(context)
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// memorialAdapter = MemorialAdapter()
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// adapter = memorialAdapter
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// }
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}
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private fun setupTabSwitching() {
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binding.apply {
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// 设置初始状态
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tabExpress.setTextColor(ContextCompat.getColor(requireContext(), R.color.tab_selected))
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tabFinance.setTextColor(ContextCompat.getColor(requireContext(), R.color.gray))
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others.setTextColor(ContextCompat.getColor(requireContext(), R.color.gray))
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// 快递标签点击事件
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tabExpress.setOnClickListener {
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expressContent.visibility = View.VISIBLE
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financeContent.visibility = View.GONE
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tabExpress.setTextColor(ContextCompat.getColor(requireContext(), R.color.tab_selected))
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tabFinance.setTextColor(ContextCompat.getColor(requireContext(), R.color.gray))
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others.setTextColor(ContextCompat.getColor(requireContext(), R.color.gray))
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tabExpress.textSize = 16f
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tabFinance.textSize = 14f
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others.textSize = 14f
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}
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// 财务标签点击事件
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tabFinance.setOnClickListener {
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expressContent.visibility = View.GONE
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financeContent.visibility = View.VISIBLE
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tabExpress.setTextColor(ContextCompat.getColor(requireContext(), R.color.gray))
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tabFinance.setTextColor(ContextCompat.getColor(requireContext(), R.color.tab_selected))
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others.setTextColor(ContextCompat.getColor(requireContext(), R.color.gray))
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tabExpress.textSize = 14f
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tabFinance.textSize = 16f
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others.textSize = 14f
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// 在切换到财务标签时加载数据 - 添加这行
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homeViewModel.loadFinanceData()
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}
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// 其他标签点击事件
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others.setOnClickListener {
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expressContent.visibility = View.GONE
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financeContent.visibility = View.GONE
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tabExpress.setTextColor(ContextCompat.getColor(requireContext(), R.color.gray))
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tabFinance.setTextColor(ContextCompat.getColor(requireContext(), R.color.gray))
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others.setTextColor(ContextCompat.getColor(requireContext(), R.color.tab_selected))
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tabExpress.textSize = 14f
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tabFinance.textSize = 14f
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others.textSize = 16f
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}
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}
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}
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//这个方法用于观察 homeViewModel 中的 expressItems 数据。
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private fun observeViewModelData() {
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//当 expressItems 数据发生变化时，更新 RecyclerView 的数据。
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homeViewModel.expressItems.observe(viewLifecycleOwner) { items ->
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//将新的数据列表提交给适配器，以更新 RecyclerView 的显示内容。
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expressAdapter.submitList(items)
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}
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homeViewModel.financeItems.observe(viewLifecycleOwner) { items ->
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financeAdapter.submitList(items)
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}
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//
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// homeViewModel.memorialItems.observe(viewLifecycleOwner) { items ->
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// memorialAdapter.submitList(items)
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// }
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}
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override fun onResume() {
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super.onResume()
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// 使用 ContextCompat 注册广播接收器，并指定 RECEIVER_NOT_EXPORTED 标志
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ContextCompat.registerReceiver(
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requireContext(),
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dataUpdateReceiver,
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IntentFilter("com.example.firstapp.DATA_UPDATED"),
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ContextCompat.RECEIVER_NOT_EXPORTED
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)
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// 加载数据
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homeViewModel.loadExpressData()
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}
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override fun onPause() {
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super.onPause()
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try {
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// 取消注册广播接收器
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requireContext().unregisterReceiver(dataUpdateReceiver)
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} catch (e: Exception) {
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// 处理可能的异常
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e.printStackTrace()
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}
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}
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override fun onDestroyView() {
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super.onDestroyView()
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_binding = null
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}
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}
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