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百度智能小程序API文档(202003)
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绘图

 来源:百度智能小程序 浏览 470 扫码 分享 2020-03-07 14:32:44
  • canvas
  • swan.createCanvasContext
  • swan.canvasGetImageData
  • swan.canvasPutImageData
  • swan.canvasToTempFilePath
  • CanvasContext
  • CanvasGradient
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  • 书签
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  • API列表
  • 基础
    • 应用级事件
      • swan.onPageNotFound
      • swan.onError
      • swan.onAppShow
      • swan.onAppHide
      • swan.offPageNotFound
      • swan.offError
      • swan.offAppShow
      • swan.offAppHide
    • URL Query
      • onURLQueryChange
      • swan.getURLQuery
      • swan.setURLQuery
  • 网络
    • 使用注意事项
    • 请求
      • swan.request
      • RequestTask
        • RequestTask.abort
    • 上传、下载
      • swan.uploadFile
      • UploadTask
        • UploadTask.onProgressUpdate
        • UploadTask.abort
      • swan.downloadFile
      • DownloadTask
        • DownloadTask.onProgressUpdate
        • DownloadTask.abort
    • WebSocket
      • swan.connectSocket
      • swan.onSocketOpen
      • swan.onSocketError
      • swan.sendSocketMessage
      • swan.onSocketMessage
      • swan.closeSocket
      • swan.onSocketClose
      • SocketTask
        • SocketTask.send
        • SocketTask.close
        • SocketTask.onOpen
        • SocketTask.onClose
        • SocketTask.onError
        • SocketTask.onMessage
  • AI
    • 接入说明
    • 文字识别
      • swan.ai.ocrIdCard
      • swan.ai.ocrBankCard
      • swan.ai.ocrDrivingLicense
      • swan.ai.ocrVehicleLicense
    • 文本审核 swan.ai.textReview
    • 语音合成 swan.ai.textToAudio
    • 图像审核 swan.ai.imageAudit
    • 图像识别
      • swan.ai.advancedGeneralIdentify
      • swan.ai.objectDetectIdentify
      • swan.ai.carClassify
      • swan.ai.dishClassify
      • swan.ai.logoClassify
      • swan.ai.animalClassify
      • swan.ai.plantClassify
    • 语音识别
      • swan.ai.getVoiceRecognizer
      • VoiceRecognizer
        • VoiceRecognizer.start
        • VoiceRecognizer.stop
        • VoiceRecognizer.cancel
        • VoiceRecognizer.onStart
        • VoiceRecognizer.onRecognize
        • VoiceRecognizer.onFinish
        • VoiceRecognizer.onError
    • 人脸识别
      • swan.ai.faceDetect
      • swan.ai.faceMatch
      • swan.ai.faceSearch
      • swan.ai.facePersonVerify
      • swan.ai.facePersonIdmatch
      • swan.ai.faceLivenessSessioncode
    • 词法分析 swan.ai.nlpLexerCustom
  • 媒体
    • 图片
      • swan.chooseImage
      • swan.previewImage
      • swan.getImageInfo
      • swan.compressImage
      • swan.saveImageToPhotosAlbum
      • swan.chooseAlbum
    • 录音管理
      • swan.getRecorderManager
      • RecorderManager
        • RecorderManager.start
        • RecorderManager.pause
        • RecorderManager.resume
        • RecorderManager.stop
        • RecorderManager.onStart
        • RecorderManager.onPause
        • RecorderManager.onStop
        • RecorderManager.onError
        • RecorderManager.onResume
        • RecorderManager.onInterruptionBegin
        • RecorderManager.onInterruptionEnd
      • swan.getAvailableAudioSources
    • 背景音频管理播放
      • swan.getBackgroundAudioManager
      • BackgroundAudioManager
        • BackgroundAudioManager.play
        • BackgroundAudioManager.pause
        • BackgroundAudioManager.stop
        • BackgroundAudioManager.seek
        • BackgroundAudioManager.onCanplay
        • BackgroundAudioManager.onPlay
        • BackgroundAudioManager.onPause
        • BackgroundAudioManager.onStop
        • BackgroundAudioManager.onEnded
        • BackgroundAudioManager.onTimeUpdate
        • BackgroundAudioManager.onError
        • BackgroundAudioManager.onWaiting
        • BackgroundAudioManager.onSeeked
        • BackgroundAudioManager.onSeeking
        • BackgroundAudioManager.onNext
        • BackgroundAudioManager.onPrev
    • 音频组件控制
      • swan.createInnerAudioContext
      • InnerAudioContext
        • InnerAudioContext.play
        • InnerAudioContext.pause
        • InnerAudioContext.stop
        • InnerAudioContext.seek
        • InnerAudioContext.destroy
        • InnerAudioContext.onCanplay
        • InnerAudioContext.onPlay
        • InnerAudioContext.onPause
        • InnerAudioContext.onStop
        • InnerAudioContext.onEnded
        • InnerAudioContext.onTimeUpdate
        • InnerAudioContext.onError
        • InnerAudioContext.onWaiting
        • InnerAudioContext.onSeeking
        • InnerAudioContext.onSeeked
        • InnerAudioContext.offCanplay
        • InnerAudioContext.offPlay
        • InnerAudioContext.offPause
        • InnerAudioContext.offStop
        • InnerAudioContext.offEnded
        • InnerAudioContext.offTimeUpdate
        • InnerAudioContext.offError
        • InnerAudioContext.offWaiting
        • InnerAudioContext.offSeeking
        • InnerAudioContext.offSeeked
      • swan.setInnerAudioOption
    • 视频
      • swan.chooseVideo
      • swan.saveVideoToPhotosAlbum
    • 视频组件控制
      • swan.createVideoContext
      • VideoContext
        • VideoContext.play
        • VideoContext.pause
        • VideoContext.seek
        • VideoContext.sendDanmu
        • VideoContext.requestFullScreen
        • VideoContext.exitFullScreen
        • VideoContext.showStatusBar
        • VideoContext.hideStatusBar
        • VideoContext.stop
        • VideoContext.playbackRate
    • 透明视频组件控制
      • swan.createAnimationVideo
      • AnimationVideo
        • AnimationVideo.play
        • AnimationVideo.pause
        • AnimationVideo.seek
    • 直播组件控制
      • swan.createLivePlayerContext
      • LivePlayerContext
        • LivePlayerContext.play
        • LivePlayerContext.stop
        • LivePlayerContext.mute
        • LivePlayerContext.pause
        • LivePlayerContext.requestFullScreen
        • LivePlayerContext.exitFullScreen
        • LivePlayerContext.resume
    • 相机组件控制
      • swan.createCameraContext
      • CameraContext
        • CameraContext.takePhoto
        • CameraContext.startRecord
        • CameraContext.stopRecord
    • AR 相机组件控制
      • swan.createARCameraContext
      • ARCameraContext
        • ARCameraContext.takePhoto
        • ARCameraContext.reset
        • ARCameraContext.startRecord
        • ARCameraContext.stopRecord
  • 文件
    • 保存、获取文件
      • swan.saveFile
      • swan.getFileInfo
      • swan.getSavedFileList
      • swan.getSavedFileInfo
    • 删除文件 swan.removeSavedFile
    • 打开新的文件页面 swan.openDocument
    • 文件系统
      • swan.getFileSystemManager
      • 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
  • 数据存储
    • 存储数据
      • 数据缓存流程
      • swan.setStorage
      • swan.setStorageSync
      • swan.getStorage
      • swan.getStorageSync
      • swan.getStorageInfo
      • swan.getStorageInfoSync
    • 存储清理
      • swan.removeStorage
      • swan.removeStorageSync
      • swan.clearStorage
      • swan.clearStorageSync
  • 位置
    • 获取位置
      • swan.getLocation
      • swan.chooseLocation
      • swan.startLocationUpdate
      • swan.onLocationChange
      • swan.offLocationChange
      • swan.stopLocationUpdate
    • 查看位置 swan.openLocation
    • 地图组件控制
      • swan.createMapContext
      • MapContext
        • MapContext.getCenterLocation
        • MapContext.moveToLocation
        • MapContext.translateMarker
        • MapContext.includePoints
        • MapContext.getRegion
        • MapContext.getScale
  • 界面
    • 绘图
      • canvas
      • swan.createCanvasContext
      • swan.canvasGetImageData
      • swan.canvasPutImageData
      • swan.canvasToTempFilePath
      • CanvasContext
        • CanvasContext.setFillStyle
        • CanvasContext.setStrokeStyle
        • CanvasContext.setShadow
        • CanvasContext.createLinearGradient
        • CanvasContext.createCircularGradient
        • CanvasContext.setLineWidth
        • CanvasContext.setLineCap
        • CanvasContext.setLineJoin
        • CanvasContext.setLineDash
        • CanvasContext.setMiterLimit
        • CanvasContext.rect
        • CanvasContext.fillRect
        • CanvasContext.strokeRect
        • CanvasContext.clearRect
        • CanvasContext.fill
        • CanvasContext.stroke
        • CanvasContext.beginPath
        • CanvasContext.closePath
        • CanvasContext.moveTo
        • CanvasContext.lineTo
        • CanvasContext.arc
        • CanvasContext.scale
        • CanvasContext.rotate
        • CanvasContext.translate
        • CanvasContext.clip
        • CanvasContext.setFontSize
        • CanvasContext.fillText
        • CanvasContext.setTextAlign
        • CanvasContext.setTextBaseline
        • CanvasContext.drawImage
        • CanvasContext.setGlobalAlpha
        • CanvasContext.measureText
        • CanvasContext.strokeText
        • CanvasContext.setLineDashOffset
        • CanvasContext.bezierCurveTo
        • CanvasContext.quadraticCurveTo
        • CanvasContext.save
        • CanvasContext.restore
        • CanvasContext.draw
        • CanvasContext.font
        • CanvasContext.setTransform
      • CanvasGradient
        • CanvasGradient.addColorStop
    • 交互反馈
      • swan.showToast
      • swan.showLoading
      • swan.hideToast
      • swan.hideLoading
      • swan.showModal
      • swan.showActionSheet
    • 导航栏
      • swan.setNavigationBarTitle
      • swan.showNavigationBarLoading
      • swan.hideNavigationBarLoading
      • swan.setNavigationBarColor
    • 设置tabBar
      • swan.setTabBarBadge
      • swan.removeTabBarBadge
      • swan.showTabBarRedDot
      • swan.hideTabBarRedDot
      • swan.setTabBarStyle
      • swan.setTabBarItem
      • swan.showTabBar
      • swan.hideTabBar
    • 导航
      • swan.navigateTo
      • swan.redirectTo
      • swan.switchTab
      • swan.navigateBack
      • swan.reLaunch
    • 动画
      • swan.createAnimation
      • Animation
        • Animation.rotate
        • Animation.rotateX
        • Animation.rotateY
        • Animation.rotateZ
        • Animation.rotate3d
        • Animation.scale
        • Animation.scaleX
        • Animation.scaleY
        • Animation.scaleZ
        • Animation.scale3d
        • Animation.translate
        • Animation.translateX
        • Animation.translateY
        • Animation.translateZ
        • Animation.translate3d
        • Animation.skew
        • Animation.skewX
        • Animation.skewY
        • Animation.matrix
        • Animation.matrix3d
    • 位置 swan.pageScrollTo
    • 背景
      • swan.setBackgroundColor
      • swan.setBackgroundTextStyle
    • 下拉刷新
      • onPullDownRefresh
      • swan.startPullDownRefresh
      • swan.stopPullDownRefresh
    • 自定义组件 swan.nextTick
    • 菜单 swan.getMenuButtonBoundingClientRect
    • 节点信息
      • swan.createIntersectionObserver
      • IntersectionObserver
        • IntersectionObserver.relativeTo
        • IntersectionObserver.relativeToViewport
        • IntersectionObserver.observe
        • IntersectionObserver.disconnect
      • swan.createSelectorQuery
      • SelectorQuery
        • SelectorQuery.in
        • SelectorQuery.select
        • SelectorQuery.selectAll
        • SelectorQuery.selectViewport
        • SelectorQuery.exec
      • NodesRef
        • NodesRef.boundingClientRect
        • NodesRef.scrollOffset
        • NodesRef.fields
    • 添加到我的小程序引导 swan.showFavoriteGuide
  • 设备
    • 系统信息
      • swan.getSystemInfo
      • swan.getSystemInfoSync
      • swan.getEnvInfoSync
      • swan.canIUse
    • 内存 swan.onMemoryWarning
    • 网络状态
      • swan.getNetworkType
      • swan.onNetworkStatusChange
    • 加速度计
      • swan.onAccelerometerChange
      • swan.startAccelerometer
      • swan.stopAccelerometer
    • 罗盘
      • swan.onCompassChange
      • swan.startCompass
      • swan.stopCompass
    • 设备方向
      • swan.onDeviceMotionChange
      • swan.startDeviceMotionListening
      • swan.stopDeviceMotionListening
    • 获取电量信息
      • swan.getBatteryInfo
      • swan.getBatteryInfoSync
    • 扫码 swan.scanCode
    • 屏幕亮度
      • swan.setScreenBrightness
      • swan.getScreenBrightness
      • swan.setKeepScreenOn
    • 用户截屏事件 swan.onUserCaptureScreen
    • 振动
      • swan.vibrateLong
      • swan.vibrateShort
    • 手机联系人 swan.addPhoneContact
    • 拨打电话 swan.makePhoneCall
    • 剪贴板
      • swan.setClipboardData
      • swan.getClipboardData
    • 在系统日历中新建日程
      • swan.addEventOnCalendar
      • swan.deleteEventOnCalendar
  • 第三方平台
    • 获取第三方平台数据
      • swan.getExtConfig
      • swan.getExtConfigSync
  • 开放接口
    • 登录
      • 授权流程说明
      • swan.login
      • getunionid
      • Session Key
      • swan.checkSession
      • swan.isLoginSync
      • 用户数据的签名验证和加解密
    • 授权
      • 需授权接口列表
      • 获取用户授权设置
      • swan.authorize
    • 用户信息
      • swanid机制说明
      • swan.getSwanId
      • swan.getUserInfo
      • signature 计算方法
    • 设置
      • swan.openSetting
      • swan.getSetting
    • 分享
      • onShareAppMessage
      • swan.openShare
      • swan.shareFile
      • web-view中的分享
    • 选择收货地址 swan.chooseAddress
    • 百度收银台支付 swan.requestPolymerPayment
    • 全屏内容发布器
      • swan.openCommunityEditor
      • swan.closeCommunityEditor
    • 半屏内容发布器
      • swan.openReplyEditor
      • swan.closeReplyEditor
    • 获取发票抬头 swan.chooseInvoiceTitle
    • 打开小程序
      • swan.navigateToSmartProgram
      • swan.navigateBackSmartProgram
    • 页面基础信息
      • swan.setPageInfo
      • swan.setMetaDescription
      • swan.setMetaKeywords
      • swan.setDocumentTitle
    • 分包预下载 swan.loadSubPackage
    • 更新
      • swan.getUpdateManager
      • UpdateManager
        • UpdateManager.onCheckForUpdate
        • UpdateManager.onUpdateReady
        • UpdateManager.onUpdateFailed
        • UpdateManager.applyUpdate
    • 调试 swan.setEnableDebug
    • 数据分析 swan.reportAnalytics
    • 定时器
      • clearInterval
      • clearTimeout
      • setInterval
      • setTimeout
    • 风控 swan.getSystemRiskInfo
    • 订阅 swan.subscribeService
  • 错误码
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