<template>
<view class="demoPage">
<view @click="saveImg">保存至相册</view>
</view>
</template>
<script>
export default {
components: {
},
data() {
return {
url: 'http://img.touxiangwu.com/2020/3/uq6Bja.jpg', //图片
}
},
// 侦听器
watch: {
},
// 计算属性
computed: {
},
// 页面加载
onLoad(e) {
},
// 页面显示
onShow() {
},
// 方法
methods: {
saveImg() {
let that = this;
// 向用户发起授权请求
uni.authorize({
scope: 'scope.writePhotosAlbum',
success: () => {
// 已授权
that.downImg();
},
fail: () => {
// 拒绝授权，获取当前设置
uni.getSetting({
success: (result) => {
if (!result.authSetting['scope.writePhotosAlbum']) {
that.isAuth()
}
}
});
}
})
},
//下载
downImg() {
uni.showLoading({
title: '加载中'
});
uni.downloadFile({
url: this.urlImg,
success: (res) => {
uni.hideLoading();
if (res.statusCode === 200) {
uni.saveImageToPhotosAlbum({
filePath: that.url, //图片地址url
success: function() {
uni.showToast({
title: "保存成功",
icon: "none"
});
},
fail: function() {
uni.showToast({
title: "保存失败，请稍后重试",
icon: "none"
});
}
});
}
},
fail: (err) => {
uni.showToast({
title: "失败啦",
icon: "none"
});
}
})
},
/*
* 引导用户开启权限
*/
isAuth() {
uni.showModal({
content: '由于您还没有允许保存图片到您相册里,无法进行保存,请点击确定允许授权',
success: (res) => {
if (res.confirm) {
uni.openSetting({
success: (result) => {
console.log(result);
}
});
}
}
});
},
},
// 页面隐藏
onHide() {
},
// 页面卸载
onUnload() {
},
// 触发下拉刷新
onPullDownRefresh() {
},
// 页面上拉触底事件的处理函数
onReachBottom() {
},
}
</script>