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基础库 2.4.0 开始支持，低版本需做兼容处理。
监听 mDNS 服务离开的事件
参数
function callback
mDNS 服务离开的事件的回调函数
参数
Object res
| 属性 | 类型 | 说明 |
|---|---|---|
| serviceType | string | 服务的类型 |
| serviceName | string | 服务的名称 |
wx.onLocalServiceLost
- 指南
- 起步
- 目录结构
- 配置小程序
- 小程序框架
- 小程序运行时
- 自定义组件
- 插件
- 基础能力
- 硬件能力
- 开放能力
- 安全指引
- 健康运营指引
- 企业微信兼容
- 调试
- 性能与体验
- 基础库
- 实时日志
- 小程序测速
- 小程序搜索
- 小程序直播
- 行业能力
- 城市服务
- 交易组件
- 框架
- 组件
- API
- 基础
- 路由
- 界面
- 交互
- 导航栏
- 背景
- Tab Bar
- 字体
- 下拉刷新
- 滚动
- 动画
- wx.createAnimation
- Animation
- Animation.left
- Animation.matrix
- Animation.matrix3d
- Animation.opacity
- Animation.right
- Animation.rotate
- Animation.rotate3d
- Animation.rotateX
- Animation.rotateY
- Animation.rotateZ
- Animation.scale
- Animation.scale3d
- Animation.scaleX
- Animation.scaleY
- Animation.scaleZ
- Animation.skew
- Animation.skewX
- Animation.skewY
- Animation.step
- Animation.top
- Animation.translate
- Animation.translate3d
- Animation.translateX
- Animation.translateY
- Animation.translateZ
- Animation.width
- Animation.bottom
- Animation.export
- Animation.backgroundColor
- Animation.height
- 置顶
- 自定义组件
- 菜单
- 窗口
- 键盘
- 网络
- 数据缓存
- 媒体
- 地图
- wx.createMapContext
- MapContext
- MapContext.addCustomLayer
- MapContext.addGroundOverlay
- MapContext.addMarkers
- MapContext.fromScreenLocation
- MapContext.getCenterLocation
- MapContext.getRegion
- MapContext.getRotate
- MapContext.getScale
- MapContext.getSkew
- MapContext.includePoints
- MapContext.initMarkerCluster
- MapContext.moveAlong
- MapContext.moveToLocation
- MapContext.on
- MapContext.openMapApp
- MapContext.removeCustomLayer
- MapContext.removeGroundOverlay
- MapContext.removeMarkers
- MapContext.setCenterOffset
- MapContext.toScreenLocation
- MapContext.translateMarker
- MapContext.updateGroundOverlay
- 图片
- 视频
- 音频
- wx.stopVoice
- wx.setInnerAudioOption
- wx.playVoice
- wx.pauseVoice
- wx.getAvailableAudioSources
- wx.createMediaAudioPlayer
- wx.createInnerAudioContext
- wx.createAudioContext
- InnerAudioContext
- InnerAudioContext.destroy
- InnerAudioContext.offCanplay
- InnerAudioContext.offEnded
- InnerAudioContext.offError
- InnerAudioContext.offPause
- InnerAudioContext.offPlay
- InnerAudioContext.offSeeked
- InnerAudioContext.offSeeking
- InnerAudioContext.offStop
- InnerAudioContext.offTimeUpdate
- InnerAudioContext.offWaiting
- InnerAudioContext.onCanplay
- InnerAudioContext.onEnded
- InnerAudioContext.onError
- InnerAudioContext.onPause
- InnerAudioContext.onPlay
- InnerAudioContext.onSeeked
- InnerAudioContext.onSeeking
- InnerAudioContext.onStop
- InnerAudioContext.onTimeUpdate
- InnerAudioContext.onWaiting
- InnerAudioContext.pause
- InnerAudioContext.play
- InnerAudioContext.seek
- InnerAudioContext.stop
- MediaAudioPlayer
- AudioContext
- 背景音频
- wx.stopBackgroundAudio
- wx.seekBackgroundAudio
- wx.playBackgroundAudio
- wx.pauseBackgroundAudio
- wx.onBackgroundAudioStop
- wx.onBackgroundAudioPlay
- wx.onBackgroundAudioPause
- wx.getBackgroundAudioPlayerState
- wx.getBackgroundAudioManager
- BackgroundAudioManager
- BackgroundAudioManager.onCanplay
- BackgroundAudioManager.onEnded
- BackgroundAudioManager.onError
- BackgroundAudioManager.onNext
- BackgroundAudioManager.onPause
- BackgroundAudioManager.onPlay
- BackgroundAudioManager.onPrev
- BackgroundAudioManager.onSeeked
- BackgroundAudioManager.onSeeking
- BackgroundAudioManager.onStop
- BackgroundAudioManager.onTimeUpdate
- BackgroundAudioManager.onWaiting
- BackgroundAudioManager.pause
- BackgroundAudioManager.play
- BackgroundAudioManager.seek
- BackgroundAudioManager.stop
- 实时音视频
- wx.createLivePusherContext
- wx.createLivePlayerContext
- LivePlayerContext
- LivePusherContext
- LivePusherContext.pause
- LivePusherContext.pauseBGM
- LivePusherContext.playBGM
- LivePusherContext.resume
- LivePusherContext.resumeBGM
- LivePusherContext.sendMessage
- LivePusherContext.setBGMVolume
- LivePusherContext.setMICVolume
- LivePusherContext.snapshot
- LivePusherContext.start
- LivePusherContext.startPreview
- LivePusherContext.stop
- LivePusherContext.stopBGM
- LivePusherContext.stopPreview
- LivePusherContext.switchCamera
- LivePusherContext.toggleTorch
- 录音
- 相机
- 富文本
- EditorContext
- EditorContext.blur
- EditorContext.clear
- EditorContext.format
- EditorContext.getContents
- EditorContext.getSelectionText
- EditorContext.insertDivider
- EditorContext.insertImage
- EditorContext.insertText
- EditorContext.redo
- EditorContext.removeFormat
- EditorContext.scrollIntoView
- EditorContext.setContents
- EditorContext.undo
- EditorContext
- 音视频合成
- 实时语音
- 画面录制器
- 视频解码器
- 地图
- 位置
- 转发
- 画布
- wx.createOffscreenCanvas
- wx.createCanvasContext
- wx.canvasToTempFilePath
- wx.canvasPutImageData
- wx.canvasGetImageData
- Canvas
- CanvasContext
- CanvasContext.arc
- CanvasContext.arcTo
- CanvasContext.beginPath
- CanvasContext.bezierCurveTo
- CanvasContext.clearRect
- CanvasContext.clip
- CanvasContext.closePath
- CanvasContext.createCircularGradient
- CanvasContext.createLinearGradient
- CanvasContext.createPattern
- CanvasContext.draw
- CanvasContext.drawImage
- CanvasContext.fill
- CanvasContext.fillRect
- CanvasContext.fillText
- CanvasContext.lineTo
- CanvasContext.measureText
- CanvasContext.moveTo
- CanvasContext.quadraticCurveTo
- CanvasContext.rect
- CanvasContext.restore
- CanvasContext.rotate
- CanvasContext.save
- CanvasContext.scale
- CanvasContext.setFillStyle
- CanvasContext.setFontSize
- CanvasContext.setGlobalAlpha
- CanvasContext.setLineCap
- CanvasContext.setLineDash
- CanvasContext.setLineJoin
- CanvasContext.setLineWidth
- CanvasContext.setMiterLimit
- CanvasContext.setShadow
- CanvasContext.setStrokeStyle
- CanvasContext.setTextAlign
- CanvasContext.setTextBaseline
- CanvasContext.setTransform
- CanvasContext.stroke
- CanvasContext.strokeRect
- CanvasContext.strokeText
- CanvasContext.transform
- CanvasContext.translate
- CanvasGradient
- Color
- Image
- ImageData
- OffscreenCanvas
- Path2D
- RenderingContext
- 文件
- wx.saveFileToDisk
- wx.saveFile
- wx.removeSavedFile
- wx.openDocument
- wx.getSavedFileList
- wx.getSavedFileInfo
- wx.getFileSystemManager
- wx.getFileInfo
- FileSystemManager
- FileSystemManager.access
- FileSystemManager.accessSync
- FileSystemManager.appendFile
- FileSystemManager.appendFileSync
- FileSystemManager.copyFile
- FileSystemManager.copyFileSync
- FileSystemManager.getFileInfo
- FileSystemManager.getSavedFileList
- FileSystemManager.mkdir
- FileSystemManager.mkdirSync
- FileSystemManager.readdir
- FileSystemManager.readdirSync
- FileSystemManager.readFile
- FileSystemManager.readFileSync
- FileSystemManager.removeSavedFile
- FileSystemManager.rename
- FileSystemManager.renameSync
- FileSystemManager.rmdir
- FileSystemManager.rmdirSync
- FileSystemManager.saveFile
- FileSystemManager.saveFileSync
- FileSystemManager.stat
- FileSystemManager.statSync
- FileSystemManager.unlink
- FileSystemManager.unlinkSync
- FileSystemManager.unzip
- FileSystemManager.writeFile
- FileSystemManager.writeFileSync
- Stats
- 开放接口
- 设备
- 外围设备
- wx.onBLEPeripheralConnectionStateChanged
- wx.offBLEPeripheralConnectionStateChanged
- wx.createBLEPeripheralServer
- BLEPeripheralServer
- BLEPeripheralServer.addService
- BLEPeripheralServer.close
- BLEPeripheralServer.offCharacteristicReadRequest
- BLEPeripheralServer.offCharacteristicSubscribed
- BLEPeripheralServer.offCharacteristicUnsubscribed
- BLEPeripheralServer.offCharacteristicWriteRequest
- BLEPeripheralServer.onCharacteristicReadRequest
- BLEPeripheralServer.onCharacteristicSubscribed
- BLEPeripheralServer.onCharacteristicUnsubscribed
- BLEPeripheralServer.onCharacteristicWriteRequest
- BLEPeripheralServer.removeService
- BLEPeripheralServer.startAdvertising
- BLEPeripheralServer.stopAdvertising
- BLEPeripheralServer.writeCharacteristicValue
- iBeacon
- NFC
- Wi-Fi
- 低功耗蓝牙
- wx.setBLEMTU
- wx.readBLECharacteristicValue
- wx.onBLEConnectionStateChange
- wx.onBLECharacteristicValueChange
- wx.offBLEConnectionStateChange
- wx.offBLECharacteristicValueChange
- wx.notifyBLECharacteristicValueChange
- wx.makeBluetoothPair
- wx.getBLEDeviceServices
- wx.getBLEDeviceRSSI
- wx.getBLEDeviceCharacteristics
- wx.createBLEConnection
- wx.closeBLEConnection
- wx.writeBLECharacteristicValue
- 日历
- 联系人
- 无障碍
- 蓝牙
- wx.stopBluetoothDevicesDiscovery
- wx.startBluetoothDevicesDiscovery
- wx.openBluetoothAdapter
- wx.onBluetoothDeviceFound
- wx.onBluetoothAdapterStateChange
- wx.offBluetoothDeviceFound
- wx.offBluetoothAdapterStateChange
- wx.getConnectedBluetoothDevices
- wx.getBluetoothDevices
- wx.getBluetoothAdapterState
- wx.closeBluetoothAdapter
- 电量
- 剪贴板
- 网络
- 屏幕
- 电话
- 加速计
- 罗盘
- 设备方向
- 陀螺仪
- 性能
- 扫码
- 振动
- 外围设备
- Worker
- 第三方平台
- WXML
- 广告
- 服务端
- 登录
- 用户信息
- 接口调用凭证
- 数据分析
- 客服消息
- 模板消息（已废弃）
- 统一服务消息
- 动态消息
- 插件管理
- 附近的小程序
- 小程序码
- URL Scheme
- 内容安全
- 直播
- goodsDelete
- addAssistant
- addGoods
- addRole
- addSubAnchor
- createRoom
- deleteRole
- deleteRoom
- deleteSubAnchor
- editRoom
- getAssistantList
- getFollowers
- getLiveInfo
- getPushUrl
- getRoleList
- getSharedCode
- getSubAnchor
- goodsAdd
- goodsAudit
- goodsInfo
- goodsList
- goodsPush
- goodsResetAudit
- goodsSale
- goodsSort
- goodsUpdate
- goodsVideo
- modifyAssistant
- modifySubAnchor
- pushMessage
- removeAssistant
- updateComment
- updateFeedPublic
- updateKF
- updateReplay
- 广告
- 云开发
- 图像处理
- 即时配送
- 物流助手
- OCR
- 运维中心
- 安全风控
- 小程序搜索
- 服务市场
- 生物认证
- 订阅消息
- 工具
- 云开发
- 介绍
- 快速开始
- 基础概念
- 开发指引
- 运维
- 计费相关
- 开发者资源
- 参考信息
- 扩展能力
- 更新日志
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