add isAndroid and isiOS

CHANGELOG_CN.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - 弹幕库监听 resize 事件，当输入框少于 150px 时，自动隐藏弹幕输入框
 - 修复弹幕输入框的固定宽度 bug
 - 设置面板支持 range 和 onRange 选项
+- 添加 isAndroid 和 isiOS 工具函数
 
 ## [4.4.0] - 2022-05-15
 

packages/artplayer/src/utils/compatibility.js

@@ -3,3 +3,5 @@ export const isMobile = /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Oper
 export const isSafari = /^((?!chrome|android).)*safari/i.test(userAgent);
 export const isWechat = /MicroMessenger/i.test(userAgent);
 export const isIE = /MSIE|Trident/i.test(userAgent);
+export const isAndroid = /android/i.test(userAgent);
+export const isiOS = /iPad|iPhone|iPod/.test(userAgent) && !window.MSStream;