网站常见的风格,建设官方网站需要注意什么,在四川省住房和城乡建设厅网站上查,网站充值支付宝收款怎么做uniapp下载打开实现方案#xff0c;支持安卓ios和h5
Android#xff1a; 1、申请本地存储读写权限 2、创建文件夹#xff08;文件夹不存在即创建#xff09; 3、下载文件
ios#xff1a; 1、下载文件 2、保存到本地#xff0c;需要打开文件点击储存
使用方法打开实现方案支持安卓ios和h5
Android 1、申请本地存储读写权限 2、创建文件夹文件夹不存在即创建 3、下载文件
ios 1、下载文件 2、保存到本地需要打开文件点击储存
使用方法
downloadFile(fileUrl, fileName)file.js
let downloadFilePath /storage/emulated/0/yulong-ys-files
// 创建文件夹
export const createDir () {return new Promise((resolve, reject) {// 申请本地存储读写权限plus.android.requestPermissions([android.permission.WRITE_EXTERNAL_STORAGE,android.permission.READ_EXTERNAL_STORAGE,android.permission.INTERNET,android.permission.ACCESS_WIFI_STATE], success {const File plus.android.importClass(java.io.File)let file new File(downloadFilePath)// 文件夹不存在即创建if (!file.exists()) {file.mkdirs()resolve()}resolve()}, error {Tips.toast(无法获取权限文件下载将出错)reject(error)})})}// 下载文件操作
async function doDownloadFile(url, fileName, options, osName) {if (osName Android) {await createDir()}Tips.loading(正在下载...)let dTask plus.downloader.createDownload(url, options, async (d, status) {Tips.hideLoading()if (status 200) {plus.io.convertLocalFileSystemURL(d.filename)await Tips.confirm(文件已保存是否打开)uni.openDocument({filePath: d.filename,success: () {console.log(成功打开)}})} else {console.log(下载失败)console.log(d)Tips.toast(下载失败)Tips.hideLoading()plus.downloader.clear()}})dTask.start()
}// 下载文件
export function downloadFile(url, fileName) {if (!url) {Tips.toast(下载地址不能为空)return Promise.reject(下载地址不能为空)}// #ifdef H5window.location.href url// #endif// #ifdef APP-PLUSlet osName plus.os.name;if (osName Android) {doDownloadFile(url, fileName, {filename: file:// downloadFilePath / fileName}, osName)} else {doDownloadFile(url, fileName, {}, osName)}// #endif
}Tips.js
/*** 提示与加载工具类*/
export default class Tips {constructor() {this.isLoading false;}/*** 弹出提示框*/static success(title, duration 1000) {setTimeout(() {uni.showToast({title: title,icon: success,mask: true,duration: duration});}, 300);if (duration 0) {return new Promise((resolve, reject) {setTimeout(() {resolve();}, duration);});}}/*** 弹出确认窗口*/static confirm(content, ops {}, payload {}) {return new Promise((resolve, reject) {uni.$showModal({content: content,...ops,success: res {if (res.confirm) {resolve(payload);} else if (res.cancel) {reject(payload);}},fail: res {reject(payload);}});});}static toast(title, onHide undefined, icon none) {setTimeout(() {uni.showToast({title: title,icon: icon,mask: true,duration:1500});}, 0);// 隐藏结束回调if (onHide) {setTimeout(() {onHide();}, 1500);}}/*** 错误框*/static error(title, onHide) {uni.showToast({title: title,icon: error,mask: true,duration: 1500});// 隐藏结束回调if (onHide) {setTimeout(() {onHide();}, 1500);}}/*** 弹出加载提示*/static loading(title 加载中) {if (Tips.isLoading) {return;}Tips.isLoading true;uni.showLoading({title: title,mask: true});}/*** 加载完毕*/static hideLoading() {if (Tips.isLoading) {Tips.isLoading false;uni.hideLoading();}}
}/*** 静态变量是否加载中*/
Tips.isLoading false;
参考博客在次基础上做了修改
