1081 lines
38 KiB
Markdown
1081 lines
38 KiB
Markdown
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# 步骤 05：频道列表页
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> 实现频道列表页，包括频道树渲染、成员显示、未读指示、当前频道栏和 ChannelViewModel。
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---
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## 一、目标
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- [ ] ChannelListScreen 页面布局（头部 + 频道树 + 当前频道栏 + 底部语音控制）
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- [ ] 频道树组件（展开/折叠、层级缩进、状态图标）
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- [ ] 成员列表显示（按频道分组、在线状态）
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- [ ] 当前频道栏（显示当前频道名、人数、成员预览）
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- [ ] 底部语音控制区（基础：静音按钮 + PTT + 展开入口）
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- [ ] 未读消息指示（红点、@提及 badge）
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- [ ] ChannelViewModel 实现（状态管理、增量同步、补偿同步）
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---
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## 二、任务清单
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### 5.1 页面布局
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**目标**：实现频道列表页的整体三段式布局。
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**布局结构**：
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```
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┌──────────────────────────────────────┐
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│ 头部（三段） │
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│ ┌────┐ ┌──────────────────┐ ┌─────┐ │
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│ │ ☰ │ │ MyServer │ │ 🟢 │ │
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│ │服务│ │ 192.168.1.1:9987 │ │连接 │ │ ← 连接状态指示
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│ │器卡│ │ 42人在线 │ │状态 │ │
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│ └────┘ └──────────────────┘ └─────┘ │
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├──────────────────────────────────────┤
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│ 中部：频道树 + 成员 │
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│ │
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│ ▼ 📁 默认频道 │ ← 展开/折叠
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│ ▼ 📁 大厅 │
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│ 👤 Alice │ ← 点击弹出成员操作菜单
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│ 👤 Bob 🔇 │
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│ 👤 Charlie 🎤 │
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│ ▶ 📁 游戏区 🔒 │ ← 🔒 = 有密码
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│ (3人) │ ← 折叠时显示人数
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│ ▶ 📁 音乐区 │
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│ (1人) │
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│ ▼ 📁 VIP 频道 🔒 │
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│ 👤 Admin │
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│ │
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│ （频道列表支持滚动） │
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├──────────────────────────────────────┤
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│ 中部-底部：当前频道栏 │
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│ ┌──────────────────────────────────┐ │
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│ │ 💬 大厅 (5人) Alice🎤 Bob │ │ ← 点击跳转到聊天页
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│ └──────────────────────────────────┘ │
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├──────────────────────────────────────┤
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│ 底部：语音控制 │
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│ ┌──────┐ ┌────────────────┐ ┌─────┐ │
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│ │ 🎤 │ │ PTT 按住发言 │ │ ⬆ │ │
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│ │静音 │ │ │ │语音 │ │ ← 展开语音卡
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│ └──────┘ └────────────────┘ └─────┘ │
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└──────────────────────────────────────┘
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```
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**任务**：
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1. **创建 ChannelListScreen.kt**
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```kotlin
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// ui/screens/ChannelListScreen.kt
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@Composable
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fun ChannelListScreen(
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channelViewModel: ChannelViewModel,
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serverViewModel: ServerViewModel,
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voiceViewModel: VoiceViewModel,
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onNavigateToChat: () -> Unit,
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onNavigateToServerConfig: () -> Unit,
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onOpenServerDetail: () -> Unit,
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onOpenChannelDetail: (channelId: Long) -> Unit,
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onOpenVoiceCard: () -> Unit
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) {
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val connectionState by serverViewModel.connectionState.collectAsState()
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val syncState by channelViewModel.syncState.collectAsState()
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Column(modifier = Modifier.fillMaxSize()) {
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// 头部
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ChannelListHeader(
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serverName = serverViewModel.serverName,
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serverAddress = serverViewModel.serverAddress,
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onlineCount = serverViewModel.onlineCount,
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connectionState = connectionState,
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onOpenServerDetail = onOpenServerDetail,
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onOpenChannelDetail = { onOpenChannelDetail(channelViewModel.currentChannelId) }
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)
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// 中部：频道树或同步加载态
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Box(modifier = Modifier.weight(1f)) {
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when (syncState) {
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SyncState.Syncing -> SyncLoadingIndicator()
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SyncState.SyncFailed -> SyncFailedView(onRetry = { channelViewModel.retrySync() })
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else -> ChannelTreeContent(
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channelViewModel = channelViewModel,
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onChannelClick = { /* 切换频道逻辑 */ },
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onClientClick = { /* 成员操作菜单 */ },
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onNavigateToChat = onNavigateToChat
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)
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}
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}
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// 中部-底部：当前频道栏
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CurrentChannelBar(
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channelViewModel = channelViewModel,
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onClick = onNavigateToChat
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)
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// 底部：语音控制
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VoiceControlBar(
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voiceViewModel = voiceViewModel,
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onExpand = onOpenVoiceCard
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)
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}
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}
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```
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2. **头部组件**
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```kotlin
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@Composable
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fun ChannelListHeader(
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serverName: String,
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serverAddress: String,
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onlineCount: Int,
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connectionState: ConnectionState,
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onOpenServerDetail: () -> Unit,
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onOpenChannelDetail: () -> Unit
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) {
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Row(
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modifier = Modifier
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.fillMaxWidth()
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.padding(horizontal = 16.dp, vertical = 12.dp),
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verticalAlignment = Alignment.CenterVertically
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) {
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// 左侧：服务器卡按钮
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IconButton(onClick = onOpenServerDetail) {
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Icon(Icons.Default.Menu, contentDescription = "服务器详情")
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}
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// 中部：服务器信息
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Column(modifier = Modifier.weight(1f), horizontalAlignment = Alignment.CenterHorizontally) {
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Text(serverName, style = MaterialTheme.typography.titleMedium)
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Text(serverAddress, style = MaterialTheme.typography.bodySmall)
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Text("${onlineCount}人在线", style = MaterialTheme.typography.bodySmall)
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}
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// 右侧：连接状态指示
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ConnectionStatusDot(connectionState)
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}
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}
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@Composable
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fun ConnectionStatusDot(state: ConnectionState) {
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val color = when (state) {
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ConnectionState.Ready -> Color.Green
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ConnectionState.Connecting, ConnectionState.Connected, ConnectionState.Syncing -> Color.Yellow
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is ConnectionState.Failed -> Color.Red
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else -> Color.Gray
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}
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Box(
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modifier = Modifier
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.size(12.dp)
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.background(color, CircleShape)
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)
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}
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```
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3. **同步加载态组件**
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```kotlin
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@Composable
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fun SyncLoadingIndicator() {
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Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
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Column(horizontalAlignment = Alignment.CenterHorizontally) {
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CircularProgressIndicator()
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Spacer(modifier = Modifier.height(16.dp))
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Text("正在同步服务器数据...")
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}
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}
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}
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@Composable
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fun SyncFailedView(onRetry: () -> Unit) {
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Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
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Column(horizontalAlignment = Alignment.CenterHorizontally) {
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Text("同步失败", color = MaterialTheme.colorScheme.error)
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Spacer(modifier = Modifier.height(8.dp))
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Button(onClick = onRetry) {
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Text("重试")
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}
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}
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}
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}
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```
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### 5.2 频道树组件
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**目标**：实现可展开/折叠的频道树，支持层级缩进和状态图标。
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**任务**：
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1. **频道树数据模型**
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```kotlin
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// 频道树节点，包含子频道和成员
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data class ChannelTreeNode(
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val channel: ChannelInfo,
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val children: List<ChannelTreeNode>,
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val clients: List<ClientInfo>,
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val isExpanded: Boolean = false,
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val unreadCount: Int = 0,
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val hasMention: Boolean = false
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)
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```
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2. **频道树构建逻辑**
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```kotlin
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// ChannelViewModel.kt
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fun buildChannelTree(
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channels: List<ChannelInfo>,
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clients: List<ClientInfo>,
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expandedIds: Set<Long>
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): List<ChannelTreeNode> {
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// 按 ParentID 分组
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val childrenMap = channels.groupBy { it.parentId }
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// 递归构建树
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fun buildNode(channel: ChannelInfo): ChannelTreeNode {
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val children = (childrenMap[channel.id] ?: emptyList())
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.sortedBy { it.order }
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.map { buildNode(it) }
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val channelClients = clients.filter { it.channelId == channel.id }
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return ChannelTreeNode(
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channel = channel,
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children = children,
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clients = channelClients,
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isExpanded = expandedIds.contains(channel.id)
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)
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}
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// 顶级频道（parentId == 0）
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return (childrenMap[0L] ?: emptyList())
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.sortedBy { it.order }
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.map { buildNode(it) }
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}
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```
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3. **频道树 Composable**
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```kotlin
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@Composable
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fun ChannelTreeContent(
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channelViewModel: ChannelViewModel,
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onChannelClick: (ChannelInfo) -> Unit,
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onClientClick: (ClientInfo) -> Unit,
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onNavigateToChat: () -> Unit
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) {
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val tree by channelViewModel.channelTree.collectAsState()
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val selfClientId by channelViewModel.selfClientId.collectAsState()
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LazyColumn(modifier = Modifier.fillMaxSize()) {
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tree.forEach { node ->
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channelTreeNodeItems(
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node = node,
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depth = 0,
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selfClientId = selfClientId,
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onChannelClick = onChannelClick,
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onClientClick = onClientClick,
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onToggleExpand = { channelViewModel.toggleExpand(it) }
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)
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}
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}
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}
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// 递归添加 LazyColumn 项
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fun LazyListScope.channelTreeNodeItems(
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node: ChannelTreeNode,
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depth: Int,
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selfClientId: Int?,
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onChannelClick: (ChannelInfo) -> Unit,
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onClientClick: (ClientInfo) -> Unit,
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onToggleExpand: (Long) -> Unit
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) {
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item(key = "channel_${node.channel.id}") {
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ChannelRow(
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node = node,
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depth = depth,
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onClick = {
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if (node.children.isNotEmpty()) {
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onToggleExpand(node.channel.id)
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} else {
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onChannelClick(node.channel)
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}
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},
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onLongClick = { /* 弹出频道操作菜单 */ }
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)
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}
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if (node.isExpanded) {
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// 显示成员
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node.clients.forEach { client ->
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item(key = "client_${client.id}") {
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ClientRow(
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client = client,
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depth = depth + 1,
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isSelf = client.id == selfClientId,
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onClick = { onClientClick(client) }
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)
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}
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}
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// 递归显示子频道
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node.children.forEach { child ->
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channelTreeNodeItems(
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node = child,
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depth = depth + 1,
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selfClientId = selfClientId,
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onChannelClick = onChannelClick,
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onClientClick = onClientClick,
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onToggleExpand = onToggleExpand
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)
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}
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}
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}
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```
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|
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|
|||
|
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4. **频道行组件**
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|||
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```kotlin
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@Composable
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fun ChannelRow(
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node: ChannelTreeNode,
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depth: Int,
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onClick: () -> Unit,
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onLongClick: () -> Unit
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) {
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Row(
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modifier = Modifier
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.fillMaxWidth()
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.padding(start = (depth * 24).dp)
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.combinedClickable(onClick = onClick, onLongClick = onLongClick)
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.padding(horizontal = 16.dp, vertical = 8.dp),
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verticalAlignment = Alignment.CenterVertically
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) {
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// 展开/折叠图标
|
|||
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if (node.children.isNotEmpty()) {
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Icon(
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|||
|
|
imageVector = if (node.isExpanded) Icons.Default.ExpandMore else Icons.Default.ChevronRight,
|
|||
|
|
contentDescription = null,
|
|||
|
|
modifier = Modifier.size(20.dp)
|
|||
|
|
)
|
|||
|
|
} else {
|
|||
|
|
Spacer(modifier = Modifier.size(20.dp))
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Spacer(modifier = Modifier.width(8.dp))
|
|||
|
|
|
|||
|
|
// 频道图标
|
|||
|
|
Icon(
|
|||
|
|
imageVector = Icons.Default.Folder,
|
|||
|
|
contentDescription = null,
|
|||
|
|
tint = MaterialTheme.colorScheme.primary
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
Spacer(modifier = Modifier.width(8.dp))
|
|||
|
|
|
|||
|
|
// 频道名
|
|||
|
|
Text(
|
|||
|
|
text = node.channel.name,
|
|||
|
|
style = MaterialTheme.typography.bodyLarge,
|
|||
|
|
modifier = Modifier.weight(1f)
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
// 状态图标
|
|||
|
|
if (node.channel.isPassword) {
|
|||
|
|
Icon(Icons.Default.Lock, contentDescription = "有密码", modifier = Modifier.size(16.dp))
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 未读指示
|
|||
|
|
if (node.unreadCount > 0) {
|
|||
|
|
Badge { Text("${node.unreadCount}") }
|
|||
|
|
} else if (node.hasMention) {
|
|||
|
|
Box(
|
|||
|
|
modifier = Modifier
|
|||
|
|
.size(8.dp)
|
|||
|
|
.background(Color.Red, CircleShape)
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 折叠时显示人数
|
|||
|
|
if (!node.isExpanded && node.clients.isNotEmpty()) {
|
|||
|
|
Text(
|
|||
|
|
text = "(${node.clients.size}人)",
|
|||
|
|
style = MaterialTheme.typography.bodySmall,
|
|||
|
|
color = MaterialTheme.colorScheme.onSurfaceVariant
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
5. **成员行组件**
|
|||
|
|
```kotlin
|
|||
|
|
@Composable
|
|||
|
|
fun ClientRow(
|
|||
|
|
client: ClientInfo,
|
|||
|
|
depth: Int,
|
|||
|
|
isSelf: Boolean,
|
|||
|
|
onClick: () -> Unit
|
|||
|
|
) {
|
|||
|
|
Row(
|
|||
|
|
modifier = Modifier
|
|||
|
|
.fillMaxWidth()
|
|||
|
|
.padding(start = (depth * 24).dp)
|
|||
|
|
.clickable(onClick = onClick)
|
|||
|
|
.padding(horizontal = 16.dp, vertical = 6.dp),
|
|||
|
|
verticalAlignment = Alignment.CenterVertically
|
|||
|
|
) {
|
|||
|
|
Spacer(modifier = Modifier.width(28.dp)) // 对齐频道行的文字
|
|||
|
|
|
|||
|
|
// 用户图标
|
|||
|
|
Icon(
|
|||
|
|
imageVector = Icons.Default.Person,
|
|||
|
|
contentDescription = null,
|
|||
|
|
tint = if (isSelf) MaterialTheme.colorScheme.primary
|
|||
|
|
else MaterialTheme.colorScheme.onSurfaceVariant
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
Spacer(modifier = Modifier.width(8.dp))
|
|||
|
|
|
|||
|
|
// 昵称
|
|||
|
|
Text(
|
|||
|
|
text = client.nickname,
|
|||
|
|
style = MaterialTheme.typography.bodyMedium,
|
|||
|
|
fontWeight = if (isSelf) FontWeight.Bold else FontWeight.Normal,
|
|||
|
|
modifier = Modifier.weight(1f)
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
// 服务器组图标（可选）
|
|||
|
|
if (client.serverGroups.isNotEmpty()) {
|
|||
|
|
Icon(
|
|||
|
|
imageVector = Icons.Default.Shield,
|
|||
|
|
contentDescription = "管理员",
|
|||
|
|
modifier = Modifier.size(16.dp),
|
|||
|
|
tint = MaterialTheme.colorScheme.tertiary
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
### 5.3 成员显示
|
|||
|
|
|
|||
|
|
**目标**：按频道分组显示在线成员，支持增量更新。
|
|||
|
|
|
|||
|
|
**任务**：
|
|||
|
|
|
|||
|
|
1. **成员分组索引**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
// 从 Repository 获取按频道分组的成员列表
|
|||
|
|
val channelClients: StateFlow<Map<Long, List<ClientInfo>>> = repository.channelClients
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
2. **成员操作菜单**
|
|||
|
|
```kotlin
|
|||
|
|
@Composable
|
|||
|
|
fun ClientActionMenu(
|
|||
|
|
client: ClientInfo,
|
|||
|
|
isSelf: Boolean,
|
|||
|
|
onPoke: () -> Unit,
|
|||
|
|
onCopyNickname: () -> Unit,
|
|||
|
|
onDismiss: () -> Unit
|
|||
|
|
) {
|
|||
|
|
AlertDialog(
|
|||
|
|
onDismissRequest = onDismiss,
|
|||
|
|
title = {
|
|||
|
|
Column {
|
|||
|
|
Text(client.nickname, style = MaterialTheme.typography.titleMedium)
|
|||
|
|
Text("频道: ${getChannelName(client.channelId)}",
|
|||
|
|
style = MaterialTheme.typography.bodySmall)
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
confirmButton = {},
|
|||
|
|
dismissButton = {},
|
|||
|
|
text = {
|
|||
|
|
Column {
|
|||
|
|
if (!isSelf) {
|
|||
|
|
ListItem(
|
|||
|
|
headlineContent = { Text("Poke") },
|
|||
|
|
leadingContent = { Icon(Icons.Default.TouchApp, null) },
|
|||
|
|
modifier = Modifier.clickable { onPoke(); onDismiss() }
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
ListItem(
|
|||
|
|
headlineContent = { Text("复制昵称") },
|
|||
|
|
leadingContent = { Icon(Icons.Default.ContentCopy, null) },
|
|||
|
|
modifier = Modifier.clickable { onCopyNickname(); onDismiss() }
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
### 5.4 未读指示逻辑
|
|||
|
|
|
|||
|
|
**目标**：实现频道未读消息和 @提及的指示。
|
|||
|
|
|
|||
|
|
**任务**：
|
|||
|
|
|
|||
|
|
1. **未读状态数据模型**
|
|||
|
|
```kotlin
|
|||
|
|
data class UnreadState(
|
|||
|
|
val channelId: Long,
|
|||
|
|
val unreadCount: Int = 0,
|
|||
|
|
val hasMention: Boolean = false
|
|||
|
|
)
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
2. **未读状态管理**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
private val _unreadStates = MutableStateFlow<Map<Long, UnreadState>>(emptyMap())
|
|||
|
|
val unreadStates: StateFlow<Map<Long, UnreadState>> = _unreadStates
|
|||
|
|
|
|||
|
|
fun onTextMessage(msg: TextMessage) {
|
|||
|
|
// 只处理频道消息（TargetMode == 2）
|
|||
|
|
if (msg.TargetMode != 2) return
|
|||
|
|
|
|||
|
|
val channelId = msg.Target.toLong()
|
|||
|
|
|
|||
|
|
// 如果不在该频道，更新未读状态
|
|||
|
|
if (channelId != repository.selfChannelId.value) {
|
|||
|
|
val current = _unreadStates.value[channelId] ?: UnreadState(channelId)
|
|||
|
|
val hasMention = msg.Message.contains("@${repository.selfNickname.value}")
|
|||
|
|
|
|||
|
|
_unreadStates.value = _unreadStates.value.toMutableMap().apply {
|
|||
|
|
put(channelId, current.copy(
|
|||
|
|
unreadCount = current.unreadCount + 1,
|
|||
|
|
hasMention = current.hasMention || hasMention
|
|||
|
|
))
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
fun clearUnread(channelId: Long) {
|
|||
|
|
_unreadStates.value = _unreadStates.value.toMutableMap().apply {
|
|||
|
|
remove(channelId)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
3. **整合到频道树**
|
|||
|
|
```kotlin
|
|||
|
|
// buildChannelTree 时整合未读状态
|
|||
|
|
fun buildChannelTree(
|
|||
|
|
channels: List<ChannelInfo>,
|
|||
|
|
clients: List<ClientInfo>,
|
|||
|
|
expandedIds: Set<Long>,
|
|||
|
|
unreadStates: Map<Long, UnreadState>
|
|||
|
|
): List<ChannelTreeNode> {
|
|||
|
|
// ... 构建树逻辑 ...
|
|||
|
|
|
|||
|
|
return ChannelTreeNode(
|
|||
|
|
channel = channel,
|
|||
|
|
children = children,
|
|||
|
|
clients = channelClients,
|
|||
|
|
isExpanded = expandedIds.contains(channel.id),
|
|||
|
|
unreadCount = unreadStates[channel.id]?.unreadCount ?: 0,
|
|||
|
|
hasMention = unreadStates[channel.id]?.hasMention ?: false
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
### 5.5 当前频道栏
|
|||
|
|
|
|||
|
|
**目标**：显示当前所在频道信息，点击跳转聊天页。
|
|||
|
|
|
|||
|
|
**任务**：
|
|||
|
|
|
|||
|
|
```kotlin
|
|||
|
|
@Composable
|
|||
|
|
fun CurrentChannelBar(
|
|||
|
|
channelViewModel: ChannelViewModel,
|
|||
|
|
onClick: () -> Unit
|
|||
|
|
) {
|
|||
|
|
val currentChannelId by channelViewModel.currentChannelId.collectAsState()
|
|||
|
|
val channels by channelViewModel.channels.collectAsState()
|
|||
|
|
val channelClients by channelViewModel.channelClients.collectAsState()
|
|||
|
|
|
|||
|
|
val currentChannel = channels.find { it.id == currentChannelId }
|
|||
|
|
val clients = channelClients[currentChannelId] ?: emptyList()
|
|||
|
|
|
|||
|
|
if (currentChannel != null) {
|
|||
|
|
Row(
|
|||
|
|
modifier = Modifier
|
|||
|
|
.fillMaxWidth()
|
|||
|
|
.clickable(onClick = onClick)
|
|||
|
|
.background(MaterialTheme.colorScheme.surfaceVariant)
|
|||
|
|
.padding(horizontal = 16.dp, vertical = 12.dp),
|
|||
|
|
verticalAlignment = Alignment.CenterVertically
|
|||
|
|
) {
|
|||
|
|
// 频道图标和名称
|
|||
|
|
Icon(Icons.Default.Chat, contentDescription = null)
|
|||
|
|
Spacer(modifier = Modifier.width(8.dp))
|
|||
|
|
Text(
|
|||
|
|
text = "${currentChannel.name} (${clients.size}人)",
|
|||
|
|
style = MaterialTheme.typography.bodyLarge,
|
|||
|
|
fontWeight = FontWeight.Medium
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
Spacer(modifier = Modifier.weight(1f))
|
|||
|
|
|
|||
|
|
// 成员预览（最多显示 3 个名字）
|
|||
|
|
val previewNames = clients.take(3).joinToString(" ") { it.nickname }
|
|||
|
|
Text(
|
|||
|
|
text = previewNames,
|
|||
|
|
style = MaterialTheme.typography.bodySmall,
|
|||
|
|
color = MaterialTheme.colorScheme.onSurfaceVariant,
|
|||
|
|
maxLines = 1,
|
|||
|
|
overflow = TextOverflow.Ellipsis
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
### 5.6 底部语音控制区（基础）
|
|||
|
|
|
|||
|
|
**目标**：实现基础语音控制栏，包含静音按钮、PTT 和展开入口。
|
|||
|
|
|
|||
|
|
**任务**：
|
|||
|
|
|
|||
|
|
```kotlin
|
|||
|
|
@Composable
|
|||
|
|
fun VoiceControlBar(
|
|||
|
|
voiceViewModel: VoiceViewModel,
|
|||
|
|
onExpand: () -> Unit
|
|||
|
|
) {
|
|||
|
|
val isMuted by voiceViewModel.isMuted.collectAsState()
|
|||
|
|
val isTransmitting by voiceViewModel.isTransmitting.collectAsState()
|
|||
|
|
|
|||
|
|
Row(
|
|||
|
|
modifier = Modifier
|
|||
|
|
.fillMaxWidth()
|
|||
|
|
.background(MaterialTheme.colorScheme.surface)
|
|||
|
|
.padding(horizontal = 16.dp, vertical = 8.dp),
|
|||
|
|
verticalAlignment = Alignment.CenterVertically,
|
|||
|
|
horizontalArrangement = Arrangement.SpaceBetween
|
|||
|
|
) {
|
|||
|
|
// 静音按钮
|
|||
|
|
IconButton(onClick = { voiceViewModel.toggleMute() }) {
|
|||
|
|
Icon(
|
|||
|
|
imageVector = if (isMuted) Icons.Default.MicOff else Icons.Default.Mic,
|
|||
|
|
contentDescription = if (isMuted) "取消静音" else "静音",
|
|||
|
|
tint = if (isMuted) Color.Red else MaterialTheme.colorScheme.onSurface
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// PTT 按钮
|
|||
|
|
Button(
|
|||
|
|
onClick = {},
|
|||
|
|
modifier = Modifier
|
|||
|
|
.weight(1f)
|
|||
|
|
.height(48.dp)
|
|||
|
|
.pointerInput(Unit) {
|
|||
|
|
detectDragGestures(
|
|||
|
|
onDragStart = { voiceViewModel.startTransmit() },
|
|||
|
|
onDragEnd = { voiceViewModel.stopTransmit() },
|
|||
|
|
onDragCancel = { voiceViewModel.stopTransmit() },
|
|||
|
|
onDrag = { _, _ -> }
|
|||
|
|
)
|
|||
|
|
},
|
|||
|
|
colors = ButtonDefaults.buttonColors(
|
|||
|
|
containerColor = if (isTransmitting) Color.Green
|
|||
|
|
else MaterialTheme.colorScheme.primaryContainer
|
|||
|
|
)
|
|||
|
|
) {
|
|||
|
|
Text(if (isTransmitting) "正在发言..." else "PTT 按住发言")
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 展开语音卡按钮
|
|||
|
|
IconButton(onClick = onExpand) {
|
|||
|
|
Icon(Icons.Default.ExpandLess, contentDescription = "展开语音卡")
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
### 5.7 ChannelViewModel 实现
|
|||
|
|
|
|||
|
|
**目标**：实现频道列表页的核心状态管理，包含增量同步和补偿同步。
|
|||
|
|
|
|||
|
|
**任务**：
|
|||
|
|
|
|||
|
|
1. **ChannelViewModel 定义**
|
|||
|
|
```kotlin
|
|||
|
|
// viewmodel/ChannelViewModel.kt
|
|||
|
|
class ChannelViewModel(
|
|||
|
|
private val repository: ChannelRepository,
|
|||
|
|
private val application: Application
|
|||
|
|
) : ViewModel() {
|
|||
|
|
|
|||
|
|
companion object {
|
|||
|
|
private const val TAG = "ChannelViewModel"
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// ─── 同步状态 ─────────────────────────────────────────
|
|||
|
|
private val _syncState = MutableStateFlow<SyncState>(SyncState.Unsynced)
|
|||
|
|
val syncState: StateFlow<SyncState> = _syncState
|
|||
|
|
|
|||
|
|
// ─── 频道数据 ─────────────────────────────────────────
|
|||
|
|
val channels: StateFlow<List<ChannelInfo>> = repository.channels
|
|||
|
|
val clients: StateFlow<List<ClientInfo>> = repository.clients
|
|||
|
|
val selfClientId: StateFlow<Int?> = repository.selfClientId
|
|||
|
|
val channelClients: StateFlow<Map<Long, List<ClientInfo>>> = repository.channelClients
|
|||
|
|
|
|||
|
|
// ─── UI 状态 ─────────────────────────────────────────
|
|||
|
|
private val _expandedChannelIds = MutableStateFlow<Set<Long>>(emptySet())
|
|||
|
|
val expandedChannelIds: StateFlow<Set<Long>> = _expandedChannelIds
|
|||
|
|
|
|||
|
|
private val _unreadStates = MutableStateFlow<Map<Long, UnreadState>>(emptyMap())
|
|||
|
|
val unreadStates: StateFlow<Map<Long, UnreadState>> = _unreadStates
|
|||
|
|
|
|||
|
|
// ─── 频道树 ─────────────────────────────────────────
|
|||
|
|
val channelTree: StateFlow<List<ChannelTreeNode>> = combine(
|
|||
|
|
channels, clients, expandedChannelIds, unreadStates
|
|||
|
|
) { chs, cls, expanded, unread ->
|
|||
|
|
buildChannelTree(chs, cls, expanded, unread)
|
|||
|
|
}.stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), emptyList())
|
|||
|
|
|
|||
|
|
// ─── 当前频道 ────────────────────────────────────────
|
|||
|
|
val currentChannelId: StateFlow<Long> = repository.selfChannelId
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
2. **首次同步方法**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 执行首次同步，由 ServerViewModel 在 onConnected 后调用
|
|||
|
|
*/
|
|||
|
|
suspend fun performInitialSync() {
|
|||
|
|
_syncState.value = SyncState.Syncing
|
|||
|
|
|
|||
|
|
try {
|
|||
|
|
// 并行请求三个数据源（TsClient 直接返回 Kotlin 类型）
|
|||
|
|
val channels = TSBridge.getChannelList()
|
|||
|
|
val clients = TSBridge.getClientList()
|
|||
|
|
val selfId = TSBridge.getClientId()
|
|||
|
|
|
|||
|
|
// 原子提交到仓库
|
|||
|
|
repository.updateBaseline(
|
|||
|
|
channels = channels,
|
|||
|
|
clients = clients,
|
|||
|
|
selfClientId = selfId.toInt()
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
// 自动展开有成员的频道
|
|||
|
|
autoExpandChannelsWithClients()
|
|||
|
|
|
|||
|
|
_syncState.value = SyncState.Synchronized
|
|||
|
|
Log.d(TAG, "Initial sync completed: ${channels.size} channels, ${clients.size} clients")
|
|||
|
|
} catch (e: Exception) {
|
|||
|
|
Log.e(TAG, "Initial sync failed", e)
|
|||
|
|
_syncState.value = SyncState.SyncFailed(e)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 带重试的首次同步
|
|||
|
|
*/
|
|||
|
|
suspend fun performInitialSyncWithRetry(maxRetries: Int = 3) {
|
|||
|
|
var retryCount = 0
|
|||
|
|
|
|||
|
|
while (retryCount < maxRetries) {
|
|||
|
|
try {
|
|||
|
|
performInitialSync()
|
|||
|
|
if (_syncState.value == SyncState.Synchronized) return
|
|||
|
|
} catch (e: Exception) {
|
|||
|
|
Log.w(TAG, "Sync attempt ${retryCount + 1} failed", e)
|
|||
|
|
}
|
|||
|
|
retryCount++
|
|||
|
|
if (retryCount < maxRetries) {
|
|||
|
|
delay(1000L * retryCount) // 递增延迟
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 所有重试失败
|
|||
|
|
if (_syncState.value != SyncState.Synchronized) {
|
|||
|
|
_syncState.value = SyncState.SyncFailed(Exception("同步失败，已重试 $maxRetries 次"))
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
fun retrySync() {
|
|||
|
|
viewModelScope.launch {
|
|||
|
|
performInitialSyncWithRetry()
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
3. **增量同步 — OnClientEnter**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 处理客户端进入事件（增量同步）
|
|||
|
|
* 对应 08 状态同步 ②
|
|||
|
|
*/
|
|||
|
|
fun handleClientEnter(clientInfo: ClientInfo) {
|
|||
|
|
Log.d(TAG, "Client enter: ${clientInfo.id} (${clientInfo.nickname}) -> channel ${clientInfo.channelId}")
|
|||
|
|
|
|||
|
|
// 按 ID 覆盖，幂等操作
|
|||
|
|
repository.addOrUpdateClient(clientInfo)
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
4. **增量同步 — OnClientMoved**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 处理客户端移动事件（增量同步 + 补偿同步）
|
|||
|
|
* 对应 08 状态同步 ② + ③
|
|||
|
|
*/
|
|||
|
|
fun handleClientMoved(clientId: Int, targetChannelId: Long) {
|
|||
|
|
Log.d(TAG, "Client moved: $clientId -> channel $targetChannelId")
|
|||
|
|
|
|||
|
|
val existingClient = repository.getClientById(clientId)
|
|||
|
|
|
|||
|
|
if (existingClient != null) {
|
|||
|
|
// 成员存在：更新频道位置
|
|||
|
|
repository.updateClientChannel(clientId, targetChannelId)
|
|||
|
|
|
|||
|
|
// 如果是自己，更新当前频道
|
|||
|
|
if (clientId == repository.selfClientId.value) {
|
|||
|
|
repository.updateSelfChannel(targetChannelId)
|
|||
|
|
clearUnread(targetChannelId)
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
// 成员不存在：触发补偿同步（08 状态同步 ③）
|
|||
|
|
Log.w(TAG, "Unknown client $clientId, triggering compensation sync")
|
|||
|
|
viewModelScope.launch { compensateClientList() }
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
5. **增量同步 — OnClientLeave**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 处理客户端离开事件（增量同步）
|
|||
|
|
* 对应 08 状态同步 ②
|
|||
|
|
*/
|
|||
|
|
fun handleClientLeave(clientId: Int, reasonMsg: String) {
|
|||
|
|
Log.d(TAG, "Client leave: $clientId, reason: $reasonMsg")
|
|||
|
|
|
|||
|
|
// 幂等删除，重复删除安全
|
|||
|
|
repository.removeClient(clientId)
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
6. **补偿同步**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 补偿同步：重新获取完整成员列表
|
|||
|
|
* 对应 08 状态同步 ③
|
|||
|
|
*/
|
|||
|
|
private suspend fun compensateClientList() {
|
|||
|
|
try {
|
|||
|
|
val clients = TSBridge.getClientList()
|
|||
|
|
repository.replaceAllClients(clients)
|
|||
|
|
Log.d(TAG, "Compensation sync completed: ${clients.size} clients")
|
|||
|
|
} catch (e: Exception) {
|
|||
|
|
Log.e(TAG, "Compensation sync failed", e)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 补偿同步：重新获取完整频道列表
|
|||
|
|
* 当事件引用未知频道时触发
|
|||
|
|
*/
|
|||
|
|
private suspend fun compensateChannelList() {
|
|||
|
|
try {
|
|||
|
|
val channels = TSBridge.getChannelList()
|
|||
|
|
repository.replaceAllChannels(channels)
|
|||
|
|
Log.d(TAG, "Channel compensation sync completed: ${channels.size} channels")
|
|||
|
|
} catch (e: Exception) {
|
|||
|
|
Log.e(TAG, "Channel compensation sync failed", e)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
7. **频道展开/折叠**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
|
|||
|
|
fun toggleExpand(channelId: Long) {
|
|||
|
|
_expandedChannelIds.value = _expandedChannelIds.value.toMutableSet().apply {
|
|||
|
|
if (contains(channelId)) remove(channelId) else add(channelId)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private fun autoExpandChannelsWithClients() {
|
|||
|
|
val clientsByChannel = repository.channelClients.value
|
|||
|
|
val toExpand = clientsByChannel.filter { it.value.isNotEmpty() }.keys
|
|||
|
|
_expandedChannelIds.value = toExpand
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
8. **事件处理器注册（供 ServerViewModel 调用）**
|
|||
|
|
```kotlin
|
|||
|
|
// ChannelViewModel.kt
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 注册事件处理器，由 ServerViewModel 在 Connect 前调用
|
|||
|
|
* 事件处理器在 Connect 前必须完成注册，避免早期事件丢失
|
|||
|
|
*/
|
|||
|
|
fun registerEventHandlers(callbacks: TSBridge.Callbacks) {
|
|||
|
|
// 通过 ServerViewModel 的事件回调链式处理
|
|||
|
|
// 具体实现在 ServerViewModel.registerEventHandlers() 中
|
|||
|
|
// ChannelViewModel 的方法被 ServerViewModel 调用
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
## 三、状态与数据流
|
|||
|
|
|
|||
|
|
### 3.1 数据流向
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
ServerViewModel ChannelViewModel UI
|
|||
|
|
│ │ │
|
|||
|
|
│ OnConnected │ │
|
|||
|
|
├─────────────────────────────→│ performInitialSync() │
|
|||
|
|
│ │ │
|
|||
|
|
│ OnClientEnter(info) │ │
|
|||
|
|
├─────────────────────────────→│ handleClientEnter() │
|
|||
|
|
│ │ │
|
|||
|
|
│ OnClientMoved(id, channelId) │ │
|
|||
|
|
├─────────────────────────────→│ handleClientMoved() │
|
|||
|
|
│ │ │
|
|||
|
|
│ OnClientLeave(id, reason) │ │
|
|||
|
|
├─────────────────────────────→│ handleClientLeave() │
|
|||
|
|
│ │ │
|
|||
|
|
│ OnTextMessage(msg) │ │
|
|||
|
|
├─────────────────────────────→│ onTextMessage() │
|
|||
|
|
│ │ │
|
|||
|
|
│ │ channelTree (StateFlow) │
|
|||
|
|
│ ├─────────────────────────→│
|
|||
|
|
│ │ │
|
|||
|
|
│ │ syncState (StateFlow) │
|
|||
|
|
│ ├─────────────────────────→│
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
### 3.2 同步状态机
|
|||
|
|
|
|||
|
|
```kotlin
|
|||
|
|
sealed class SyncState {
|
|||
|
|
object Unsynced : SyncState() // 已连接但尚无完整数据
|
|||
|
|
object Syncing : SyncState() // 调用 ListChannels 和 ListClients
|
|||
|
|
object Synchronized : SyncState() // 列表基线可供 UI 使用
|
|||
|
|
data class SyncFailed(val error: Throwable) : SyncState() // 同步失败
|
|||
|
|
}
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
状态转换：
|
|||
|
|
- `Unsynced → Syncing`：收到 OnConnected 后开始首次同步
|
|||
|
|
- `Syncing → Synchronized`：三个数据源全部成功
|
|||
|
|
- `Syncing → SyncFailed`：任一数据源失败
|
|||
|
|
- `SyncFailed → Syncing`：用户点击重试
|
|||
|
|
|
|||
|
|
### 3.3 成员实体状态树
|
|||
|
|
|
|||
|
|
对应 `docs/流程/02_浏览频道.md` 成员实体状态树：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
成员实体状态树
|
|||
|
|
├── 基线分支（首次同步）
|
|||
|
|
│ ├── ListClients 获取完整成员列表
|
|||
|
|
│ ├── 按 ClientInfo.ID 建表去重
|
|||
|
|
│ └── 按 ChannelID 建索引
|
|||
|
|
│
|
|||
|
|
├── 增量分支（事件驱动）
|
|||
|
|
│ ├── OnClientEnter → set(ID, info)
|
|||
|
|
│ ├── OnClientMoved → 覆盖 ChannelID
|
|||
|
|
│ └── OnClientLeave → delete(ID)
|
|||
|
|
│
|
|||
|
|
├── 当前用户分支
|
|||
|
|
│ ├── ClientID 本地调用
|
|||
|
|
│ ├── 事件 ClientID 比对
|
|||
|
|
│ └── 更新自身频道事实
|
|||
|
|
│
|
|||
|
|
└── 修复分支（补偿同步）
|
|||
|
|
├── 检测未知 ClientID → ListClients
|
|||
|
|
└── 检测未知 ChannelID → ListChannels
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
## 四、验收标准
|
|||
|
|
|
|||
|
|
### 功能验收
|
|||
|
|
|
|||
|
|
- [ ] **频道树渲染**
|
|||
|
|
- 频道按层级正确缩进显示
|
|||
|
|
- 展开/折叠交互正常
|
|||
|
|
- 折叠时显示频道内人数
|
|||
|
|
- 有密码频道显示 🔒 图标
|
|||
|
|
|
|||
|
|
- [ ] **成员显示**
|
|||
|
|
- 成员按所属频道正确分组
|
|||
|
|
- 自己的昵称高亮显示
|
|||
|
|
- 点击成员弹出操作菜单
|
|||
|
|
|
|||
|
|
- [ ] **未读指示**
|
|||
|
|
- 非当前频道收到消息时显示红点
|
|||
|
|
- 消息包含 @昵称 时显示数字 badge
|
|||
|
|
- 进入频道后清除未读标记
|
|||
|
|
|
|||
|
|
- [ ] **当前频道栏**
|
|||
|
|
- 正确显示当前频道名和人数
|
|||
|
|
- 显示成员预览（最多 3 个名字）
|
|||
|
|
- 点击跳转到聊天页
|
|||
|
|
|
|||
|
|
- [ ] **同步功能**
|
|||
|
|
- 首次同步完成后频道树正确显示
|
|||
|
|
- 同步中显示加载指示器
|
|||
|
|
- 同步失败显示重试按钮
|
|||
|
|
- 新成员进入时增量更新
|
|||
|
|
- 成员离开时增量移除
|
|||
|
|
- 成员移动时增量更新位置
|
|||
|
|
- 未知成员触发补偿同步
|
|||
|
|
|
|||
|
|
### 性能验收
|
|||
|
|
|
|||
|
|
- [ ] 频道树渲染流畅（100 频道、500 用户无卡顿）
|
|||
|
|
- [ ] 增量更新无闪烁（DiffUtil 或 Compose recompose 优化）
|
|||
|
|
- [ ] 首次同步在 3 秒内完成
|
|||
|
|
|
|||
|
|
### 代码质量验收
|
|||
|
|
|
|||
|
|
- [ ] 状态管理清晰，单向数据流
|
|||
|
|
- [ ] 事件处理幂等（重复事件安全处理）
|
|||
|
|
- [ ] 补偿同步有日志记录
|
|||
|
|
- [ ] 无内存泄漏（viewModelScope 正确使用）
|
|||
|
|
|
|||
|
|
### 测试用例
|
|||
|
|
|
|||
|
|
| 场景 | 操作 | 预期结果 |
|
|||
|
|
|------|------|----------|
|
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| 首次加载 | 连接成功后进入频道列表 | 显示加载态 → 频道树正确显示 |
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| 展开频道 | 点击折叠的频道 | 显示子频道和成员 |
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| 折叠频道 | 点击展开的频道 | 隐藏子频道和成员，显示人数 |
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| 新成员进入 | 其他用户加入服务器 | 频道树增量更新，无需刷新 |
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| 成员离开 | 其他用户退出 | 频道树增量更新，人数减少 |
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| 成员移动 | 其他用户切换频道 | 两个频道的人数同步更新 |
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| 未读消息 | 其他频道收到消息 | 频道名旁显示红点 |
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| @提及 | 收到包含 @昵称 的消息 | 显示数字 badge |
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| 进入频道 | 点击有未读的频道 | 未读标记清除 |
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| 网络断开 | 断网后 | 显示断开状态，数据冻结 |
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| 补偿同步 | 收到未知成员的移动事件 | 自动重新获取完整列表 |
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---
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## 五、参考文档
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|
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- `docs/UI架构设计.md` - 2.2 频道列表页
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- `docs/流程/02_浏览频道.md` - 状态树、时序图
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- `docs/流程/08_状态同步.md` - ② 增量同步、③ 补偿同步
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- `docs/sdk文档-go.md` - ListChannels、ListClients、事件处理器
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