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shadowOffsetY shadowOffsetY 代码:
// xxx.ets @Entry @Component struct ShadowOffsetY { private settings: RenderingContextSettings = new RenderingContextSettings(true) private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings) build() { Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) { Canvas(this.context) .width('100%') .height('100%') .backgroundColor('#ffff00') .onReady(() =>{ this.context.shadowBlur = 10 this.context.shadowOffsetY = 20 this.context.shadowColor = 'rgb(0,0,0)' this.context.fillStyle = 'rgb(255,0,0)' this.context.fillRect(30, 30, 100, 100) }) } .width('100%') .height('100%') } }
效果 imageSmoothingEnabled 代码
// xxx.ets @Entry @Component struct ImageSmoothingEnabled { private settings: RenderingContextSettings = new RenderingContextSettings(true) private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings) private img:ImageBitmap = new ImageBitmap("common/images/icon.jpg") build() { Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) { Canvas(this.context) .width('100%') .height('100%') .backgroundColor('#ffff00') .onReady(() =>{ this.context.imageSmoothingEnabled = false this.context.drawImage( this.img,0,0,400,200) }) } .width('100%') .height('100%') } }
效果
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