小程序端
javascript
复制代码
onDown() {
// 检查相册权限
uni.authorize({
scope: 'scope.writePhotosAlbum',
success: () => {
this.downloadImage();
},
fail: () => {
uni.showToast({
title: "请授权相册权限",
icon: "none"
});
}
});
},
downloadImage() {
common.request('post', '/agent/Managestart/downQrcode', {
device_id: this.device_id
}).then(res => {
if (res.code === 1) {
uni.downloadFile({
url: res.data,
success: (downloadRes) => {
if (downloadRes.statusCode === 200) {
uni.saveImageToPhotosAlbum({
filePath: downloadRes.tempFilePath,
success: () => {
uni.showToast({
title: "保存成功"
});
},
fail: () => {
uni.showToast({
title: "保存失败",
icon: "none"
});
}
});
}
}
});
}
});
}
微信打开
javascript
复制代码
onDown() {
common.request('post', '/agent/Managestart/downQrcode', {
device_id: this.device_id
}).then(res => {
if (res.code == 1) {
const imageData = common.image(res.data);
// 检测是否是微信浏览器
const isWeixin = /MicroMessenger/i.test(navigator.userAgent);
if (isWeixin) {
// 微信浏览器：强制跳转到图片 URL
window.location.href = imageData;
} else {
// 非微信浏览器：通用下载方式
const link = document.createElement("a");
link.href = imageData;
link.download = "qrcode.png";
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
}
} else {
uni.showToast({
title: "获取图片失败",
icon: "none"
});
}
}).catch(() => {
uni.showToast({
title: "网络异常",
icon: "none"
});
});
},