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移除书签CanvasContext.save
解释：保存当前的绘图上下文。
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图片示例
代码示例
- SWAN
- JS
<canvas canvas-id="myCanvas" class="myCanvas" />
CanvasContext.save
- 教程
- 基本原理
- 组件
- API
- 基础
- 路由
- 网络
- 界面
- 交互反馈
- 导航栏
- 设置 tabBar
- 关注小程序引导组件
- 位置
- 下拉刷新
- 背景
- 动画
- swan.createAnimation
- Animation
- Animation.matrix
- Animation.matrix3d
- 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.translate
- Animation.translate3d
- Animation.translateX
- Animation.translateY
- Animation.translateZ
- 自定义组件
- 菜单
- 节点信息
- 数据存储
- AI
- 媒体
- 图片
- 相机组件控制
- AR 相机组件控制
- 背景音频组件控制
- 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
- 录音管理器
- 视频
- 视频组件控制
- 透明视频组件控制
- 直播组件控制
- RTC 组件控制
- swan.createRtcRoomContext
- RtcRoomContext
- RtcRoomContext.enterRoom
- RtcRoomContext.exitRoom
- RtcRoomContext.getRemoteUserList
- RtcRoomContext.getRemoteAudioLevels
- RtcRoomContext.publishLocalStream
- RtcRoomContext.unpublishLocalStream
- RtcRoomContext.subscribeRemoteStream
- RtcRoomContext.unsubscribeRemoteStream
- RtcRoomContext.setRemoteVideoPlayState
- RtcRoomContext.setRemoteAudioPlayState
- RtcRoomContext.switchCamera
- RtcRoomContext.kickOutUser
- 位置
- 画布
- canvas
- swan.createCanvasContext
- swan.canvasPutImageData
- swan.canvasGetImageData
- swan.canvasToTempFilePath
- CanvasContext
- CanvasContext.setFillStyle
- CanvasContext.setStrokeStyle
- CanvasContext.setShadow
- CanvasContext.createLinearGradient
- CanvasContext.createCircularGradient
- canvasContext.addColorStop
- 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.setTransform
- CanvasGradient
- 文件
- 保存、获取文件
- 删除文件
- 打开新的文件页面
- 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
- 设备
- 第三方平台
- 开放接口
- 用户接口
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