微信小程序配合vant压缩图片上传

使用vant 组件 <van-uploader bind:after-read="afterRead" />

    afterRead(event: any) {
      console.log(event.detail);
      const { file } = event.detail;
      console.log(111, file.size / 1024 / 1024);
      const maxSize = file.size / 1024 / 1024;
      let url = file.url;
      const _this = this
      const getImgInfo = (url, resolve) => {
        wx.getImageInfo({
          src: url,
          success(res) {
            console.log('imginfo', res);
            const { width, height } = res;
            wx.compressImage({
              src: url,
              quality: 1,
              compressedWidth: width,
              compressedHeight: height,
              success(res) {
                console.log('comporess', res);
                url = res.tempFilePath;
                // wx.saveImageToPhotosAlbum({
                //   filePath: res.tempFilePath,
                // })
                resolve(url);
              }
            })
          }
        })
      };
      new Promise((resolve) => {
        if (maxSize > 5) {
          getImgInfo(url, resolve);
          return;
        }
        resolve(url);
      }).then(filePath => {
        console.log('then', filePath);
        const token = wx.getStorageSync('token');
        const host = getApp().globalData.host
        wx.showLoading({ title: '加载中' });
        wx.uploadFile({
          url: `${host}/api/v1/weixin/common/upload`,
          header: { 'Authorization': token },
          filePath,
          name: 'file',
          success(res) {
            const { data, code, msg } = JSON.parse(res.data);
            if (code != 0) {
              wx.showToast({
                icon: 'none',
                title: msg || '网络错误，请返回重试',
              })
              wx.hideLoading();
              return
            }
            wx.hideLoading();
            const { list } = _this.data;
            const fileInfo = { ...file, ...data }
            _this.setData(
              { list: [...list, fileInfo] },
              () => {
                const fileNos = [...list, fileInfo].map(i => i.fileNo)
                _this.triggerEvent('setFileList', { files: fileNos })
              })
          },
        });
      })
    },