showSuccessNotification
fun showSuccessNotification(context: Context, notificationId: Int, channelId: String, @DrawableRes smallIcon: Int, title: CharSequence, content: CharSequence, file: File, authority: String)
显示下载成功时的通知（点击安装）
Parameters
context
notificationId
通知ID
channelId
通知渠道ID
smallIcon
小图标资源ID
title
通知标题
content
通知内容
file
下载完成的文件
authority
FileProvider的authority