一、效果

二、实现

    // 下载视频到本地
    handleDownloadVideo() {
      uni.showLoading({ title: "保存中", mask: true });
      const url = config.baseUrl + this.apouseVideoUrl;
      const filepath =
        wx.env.USER_DATA_PATH + "/" + new Date().valueOf() + ".mp4";
      uni.downloadFile({
        url,
        filepath,
        success: (res) => {
          if (res.statusCode == 200) {
            uni.saveVideoToPhotosAlbum({
              filePath: res.tempFilePath,
              success: () => {
                uni.hideLoading();
                uni.showToast({
                  icon: "none",
                  title: "保存成功",
                  duration: 2000,
                });
              },
              fail: () => {
                uni.hideLoading();
                uni.showToast({
                  icon: "none",
                  title: "保存视频失败，请重试",
                  duration: 2000,
                });
              },
            });
          }
          console.log("res", res);
        },
        fail: () => {
          uni.hideLoading();
          uni.showToast({
            icon: "none",
            title: "视频解析失败",
            duration: 2000,
          });
        },
      });
    },