绘制的图片,文字等十分模糊
添加以下代码,通过设置分辨率来解决
const dpr = wx.getSystemInfoSync().pixelRatiocanvas.width = res[0].width * dprcanvas.height = res[0].height * dprctx.scale(dpr, dpr)
完整代码:
<!-- canvas.wxml --><canvas type="2d" id="myCanvas"></canvas>
// canvas.jsPage({onReady() {const query = wx.createSelectorQuery()query.select('#myCanvas').fields({node: true, size: true }).exec((res) => {const canvas = res[0].nodeconst ctx = canvas.getContext('2d')//添加这些代码,通过分辨率重新设置const dpr = wx.getSystemInfoSync().pixelRatiocanvas.width = res[0].width * dprcanvas.height = res[0].height * dprctx.scale(dpr, dpr)ctx.fillRect(0, 0, 100, 100)})}})
吐槽一下,官方不做说明,折腾半天