根因(断网重连后再也下载不了、日志却显示"歌曲源获取成功"):
SongApiClient.clearTokenCache() 一直是**空实现**。JS 侧 window.api.tokens 与
_apiInitPromise 因此被一直复用; 而歌曲源按「出口 IP + device」识别、试用窗口
也记在出口 IP 上(见 Eac19WindowGuard), 断网/重连(尤其换出口 IP)后旧 token 已失效 ——
取址这一步看起来成功, 真正下载却 403/失败。
1) 网络状态检测(新增 KtvNetworkMonitor)
走 ConnectivityManager 回调(不轮询)维护全局 online, 状态变化才回调主线程;
全局可读 online 供下载层判断失败是否由断网引起。
2) 播放页右上角「网络未连接」提示
全屏播放页控制层 header 内、标题右侧新增红色徽标(不遮挡右上角二维码),
断网显示、恢复自动隐藏。
3) 网络恢复/换网后的统一维护 refreshNetworkState()
- 重建歌曲源会话: clearTokenCache() 真正下发 KtvJsBridge.resetApiSession()
(置空 window.api 与 _apiInitPromise, 下次取址重新构造 API 实例、回到默认源顺序
并重新登录拿新 token);
- 复位 Eac19WindowGuard 窗口守卫; 重解析网卡 MAC + 刷新日志上下文;
- 重启本地点歌服务并刷新二维码;
- 自动重试断网期间失败的下载(最多 8 首)。
断网恢复走该路径(带提示), 换网换 IP 也走同一路径(静默)。
4) 下载层网络失败跟踪(SongOkDownloadManager)
结合 KtvNetworkMonitor.online 与异常类型(UnknownHost/Connect/SocketTimeout/
NoRouteToHost/SSL/EOF)及 HTTP 0 判定网络类失败, 记入 networkFailed;
成功后清除、手动取消不入集合; retryNetworkFailed() 供恢复时调用。
5) 顺带修掉一个隐患: 离线时 localIp() 为空会让 remoteNetworkMonitor 每 5s 误判
"IP 变化"而反复重启本地点歌服务; 现已加空值短路, 离线只等网络回调。
版本号 1.3.9 -> 1.4.0(versionCode 15 -> 16)。按约定本次不发布 Release, 仅本地打包测试。
Maidong KTV
A local karaoke application for Android TV and landscape song-selection devices
Remote Control · Song Discovery · Request Queue · Download Management · Stable Playback
Core Features
- Full TV remote navigation with directional keys, confirmation, back, and long-press actions.
- Consistent focus feedback for buttons, lists, cards, switches, and dialogs.
- Home entries for charts, song titles, singers, frequently played songs, favorites, categories, and local songs.
- Online and local search with language filters, paging, and initial-letter keyboard input.
- Singer browsing with portrait tags and singer-specific song lists.
- Song ordering, batch ordering, queue prioritization, favorites, and file management.
- Real-time synchronization across queued, played, and downloaded song lists.
- New requests join the end of the queue without interrupting the current requested song.
- Automatic playback when requested songs are available, including smooth transitions from public playback.
Playback
- IJK-based playback for local and downloaded songs.
- Continuous playback while navigating between pages or switching between windowed and full-screen modes.
- Play, pause, skip, replay, progress display, and seeking controls.
- Original-vocal and accompaniment switching without changing the current play or pause state.
- Synchronized playback state across windowed controls, full-screen controls, and status overlays.
- Song title overlays, temporary mode prompts, and persistent pause indicators.
- Video ratio, automatic full screen, audio-video synchronization, and public playback settings.
- Maximum song volume and configurable original-vocal and accompaniment behavior.
Downloads And Data
- Background downloads with progress, resume support, and automatic retry.
- Automatic cleanup and retry after download or decryption failures.
- Recognition, counting, and playback of downloaded local songs.
- Segmented database download, verification, merge, and atomic update.
- Directory creation, database scanning, and download startup only after storage permission is granted.
- Local disk and USB song scanning, reserved storage settings, and automatic cleanup.
- Unified Maidong KTV data storage to avoid conflicts with other applications.
Settings
- Data settings for library updates, local scanning, reserved space, automatic cleanup, and database maintenance.
- Playback settings for public playback, automatic full screen, video ratio, synchronization, and title overlays.
- Sound settings for volume behavior, maximum song volume, original vocals, and accompaniment.
- Interface settings for language, floating controls, carousel content, and song title overlays.
- Dialog selections remain temporary until confirmed and provide clear remote-control focus feedback.
Interface And Interaction
- Landscape TV layout optimized for long-distance viewing.
- Consistent state and meaning across top, windowed, and full-screen playback controls.
- Stable focus during list refreshes, paging, tab changes, and song ordering.
- Focus changes color only and preserves each control's original dimensions, corners, and layout.
- A consistent circular Maidong logo across the home screen, player, and application information.
Project Notice
This repository: https://gitea.kasugano.cn/zijunchiang/maidong-ktv
UI/feature framework credit: https://gitee.com/yangyachao-X/maidong-ktv
This repository reworks the upstream "Maidong KTV" UI and feature framework, and the core/data layer was rewritten with DSH (DeepSeek Harness): library sync, song-source integration, device auth, risk-control handling, remote logging, and ad blocking are all new implementations.
Highlights of the reworked data layer:
- Library: synced exclusively from the official Muse service
(
mconn.cherryonline.cnmls-api/v1/sqlite/sync); the code host carries source only, no database files. - Song source:
w.w345.my(i.phptoken →do.phpplayback URL) with fixed device identity and reproduced signing; ad/mismatched resources (e.g.wb66.cn/.../719.ts) are blocked and retried. - JS hot-update:
app/src/main/assets/mobile/ktv_api.js, requires theKTV_BRIDGE_API: 7marker.
Building
Requirements: JDK 17, Android SDK (compileSdk 35, minSdk 21, targetSdk 25),
Gradle wrapper 8.13 (bundled).
cd maidong-ktv
export JAVA_HOME=/path/to/jdk-17
export ANDROID_HOME=/path/to/android-sdk
export ANDROID_SDK_ROOT=$ANDROID_HOME
./gradlew assembleRelease
The release signing config in app/build.gradle expects ../../ktv_keystore.jks (one level above the
repo root) with alias ktv / password 123456; adjust paths or use signingConfigs.debug for a
quick unsigned build. Output: app/build/outputs/apk/release/app-release.apk
(dual ABI: armeabi-v7a + arm64-v8a). Install with adb install -r <apk>.
For non-commercial learning purposes only. Respect upstream copyright and song licensing.
