1.在标签里传递ID
1<text catchtap="handleDownload" data-link="{{item.link}}">下载</text>
2.js下载方法
//下载
handleDownload(e) {
let link = e.currentTarget.dataset.link;
let fileName = new Date().valueOf();
wx.downloadFile({
url: link,
filePath: wx.env.USER_DATA_PATH + '/' + fileName + '.mp4',
success: res => {
console.log(res);
let filePath = res.filePath;
wx.saveVideoToPhotosAlbum({
filePath,
success: file => {
$Message({
content: '下载成功',
type: 'success'
})
let fileMgr = wx.getFileSystemManager();
fileMgr.unlink({
filePath: wx.env.USER_DATA_PATH + '/' + fileName + '.mp4',
success: function(r) {
},
})
},
fail: err => {
console.log(err)
if (err.errMsg === 'saveVideoToPhotosAlbum:fail auth deny') {
wx.showModal({
title: '提示',
content: '需要您授权保存相册',
showCancel: false,
success: data => {
wx.openSetting({
success(settingdata) {
if (settingdata.authSetting['scope.writePhotosAlbum']) {
wx.showModal({
title: '提示',
content: '获取权限成功,再次点击下载即可保存',
showCancel: false,
})
} else {
wx.showModal({
title: '提示',
content: '获取权限失败，将无法保存到相册哦~',
showCancel: false,
})
}
},
})
}
})
}
}
})
}
})
},
https://blog.csdn.net/weixin_30407099/article/details/97398356
https://www.cnblogs.com/Glant/p/11423370.html
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