download file
// 下载文件
downloadFile(url) {
uni.downloadFile({
url: url,
success: function (res) {
var filePath = res.tempFilePath
uni.openDocument({
filePath: filePath,
showMenu: true,
success: function (res) {
console.log('打开文档成功')
}
})
}
})
},
picture download
// 保存图片先判断是否有相册权限
save(url) {
const that = this
uni.showLoading({
title: '正在保存图片...'
})
//获取用户的当前设置。获取相册权限
uni.getSetting({
success: (res) => {
//如果没有相册权限
if (!res.authSetting['scope.writePhotosAlbum']) {
//向用户发起授权请求
uni.authorize({
scope: 'scope.writePhotosAlbum',
success: () => {
//授权成功保存图片到系统相册
uni.downloadFile({
url: url,
success: function (res) {
var filePath = res.tempFilePath
uni.saveImageToPhotosAlbum({
// 图片路径，不支持网络图片路径
filePath: filePath,
success: (res) => {
uni.hideLoading()
uni.openDocument({
filePath: filePath,
showMenu: true,
success: function (res) {
console.log('打开文档成功')
}
})
},
fail: (res) => {
uni.hideLoading()
console.log(res.errMsg)
uni.showToast({
title: res.errMsg
})
}
})
}
})
},
//授权失败
fail: () => {
uni.hideLoading()
uni.showModal({
title: '您已拒绝获取相册权限',
content: '是否进入权限管理，调整授权？',
success: (res) => {
if (res.confirm) {
//调起客户端小程序设置界面，返回用户设置的操作结果。（重新让用户授权）
uni.openSetting({
success: (res) => {
console.log(res.authSetting)
}
})
} else if (res.cancel) {
uni.showToast({
title: '已取消！',
icon: 'none'
})
}
}
})
}
})
} else {
uni.downloadFile({
url: url,
success: function (res) {
// 图片临时路径
var filePath = res.tempFilePath
uni.saveImageToPhotosAlbum({
// 图片路径，不支持网络图片路径
filePath: filePath,
success: (res) => {
uni.hideLoading()
uni.openDocument({
filePath: filePath,
showMenu: true,
success: function (res) {
console.log('打开文档成功')
}
})
},
fail: (res) => {
uni.hideLoading()
console.log(res.errMsg)
uni.showToast({
title: res.errMsg
})
}
})
}
})
}
}
})
},
When downloading files with pictures and files, you need to judge which method to use first.
toDownloadFile(url) {
let imgType1 = ['jpg', 'jpeg', 'png']
let type = url.split('.')[url.split('.').length - 1]
for (let i = 0; i < imgType1.length; i++) {
if (imgType1[i].toUpperCase() === type.toUpperCase()) {
this.save(url)
return
}
}
this.downloadFile(url)
},