wx.chooseImage({
success: function(res){
ctx.drawImage(res.tempFilePaths[0], 0, 0, 150, 100)
ctx.draw()
}
})
相关问题
相关文档
- CanvasContext.drawImage: 小程序/开发/API/画布/CanvasContext/CanvasContext.drawImage
- Canvas.createImage: 小程序/开发/API/画布/Canvas/Canvas.createImage
- CanvasContext.drawImage#参数: 小程序/开发/API/画布/CanvasContext/CanvasContext.drawImage
- CanvasContext.drawImage#功能描述: 小程序/开发/API/画布/CanvasContext/CanvasContext.drawImage
- Canvas.toDataURL: 小程序/开发/API/画布/Canvas/Canvas.toDataURL
<canvas canvas-id="canvasPoster" class="canvasStyle" />
let ctx = wx.createCanvasContext('canvasPoster');
// 封装临时图片路径
getImgUrl(img) {
return new Promise((result, rej) => {
wx.getImageInfo({
src: img,
success: (res) => {
console.log(res, "获取");
return result(res.path)
},
fail: (error) => {
rej(error)
}
})
})
},
ctx.drawImage(await that.getImgUrl(that.data.canvasTitle), 80, 30, 150, 60)
https://developers.weixin.qq.com/s/765NktmM7Hz2 亲测可以
img 的 onload 要全小写。。。。