uniapp-test/pages/lq-upgrade/upgrade.js

/**
 * @description H5+下载App
 * @param downloadUrl:App下载链接
 * @param progressCallBack:下载进度回调
 */
export const downloadApp = (downloadUrl, progressCallBack = () => {}, ) => {
	return new Promise((resolve, reject) => {
		//创建下载任务
		const downloadTask = plus.downloader.createDownload(downloadUrl, {
			method: "GET"
		}, (task, status) => {
			console.log(status,'status')
			if (status == 200) { //下载成功
				resolve(task.filename)

			} else {
				reject('fail')
				uni.showToast({
					title: '下载失败',
					duration: 1500,
					icon: "none"
				});
			}
		})
		//监听下载过程
		downloadTask.addEventListener("statechanged", (task, status) => {
			switch (task.state) {
				case 1: // 开始  
					break;
				case 2: //已连接到服务器  
					break;
				case 3: // 已接收到数据  
				console.log(task,'task')
					let hasProgress = task.totalSize && task.totalSize > 0 //是否能获取到App大小
					if (hasProgress) {
						let current = parseInt(100 * task.downloadedSize / task.totalSize); //获取下载进度百分比
						progressCallBack(current,task.downloadedSize,task.totalSize)
					}
					break;
				case 4: // 下载完成       
					break;
			}
		});
		//开始执行下载
		downloadTask.start();
	})


}
/**
 * @description H5+安装APP
 * @param fileName:app文件名
 * @param callBack:安装成功回调
 */
export const installApp = (fileName, callBack = () => {}) => {
	//注册广播监听app安装情况
	onInstallListening(callBack);
	//开始安装
	plus.runtime.install(plus.io.convertLocalFileSystemURL(fileName), {}, () => {
		//成功跳转到安装界面
	}, function(error) {
		uni.showToast({
			title: '安装失败',
			duration: 1500,
			icon: "none"
		});
	})

}
/**
 * @description 注册广播监听APP是否成功
 * @param callBack:安装成功回调函数
 */
const onInstallListening = (callBack = () => {}) => {

	let mainActivity = plus.android.runtimeMainActivity(); //获取activity
	//生成广播接收器
	let receiver = plus.android.implements('io.dcloud.android.content.BroadcastReceiver', {
		onReceive: (context, intent) => { //接收广播回调  
			plus.android.importClass(intent);
			mainActivity.unregisterReceiver(receiver); //取消监听
			callBack()
		}
	});
	let IntentFilter = plus.android.importClass('android.content.IntentFilter');
	let Intent = plus.android.importClass('android.content.Intent');
	let filter = new IntentFilter();
	filter.addAction(Intent.ACTION_PACKAGE_ADDED); //监听apk安装     
	filter.addDataScheme("package");
	mainActivity.registerReceiver(receiver, filter); //注册广播


}