showStartNotification
open fun showStartNotification( context: Context, notifyId: Int, channelId: String, channelName: String, @DrawableRes smallIcon: Int, title: CharSequence, content: CharSequence, isVibrate: Boolean, isSound: Boolean, isSupportCancelDownload: Boolean)
显示开始下载时的通知
Parameters
notifyId
channelId
channelName
smallIcon
title
content