AXWebViewController is a webViewController to browse web content inside applications. It’s a lightweight controller on iOS platform based on WKWebView (UIWebView would be the base Kit under iOS 8.0). It added navigation tool bar to refresh, go back, go forward and so on. It support the navigation style on WeChat. It is a simple-using and convenient web view controller using inside applications.
// 当前SDK系统支持的最小版本 IPHONE_OS_VERSION_MIN_REQUIRED // 当前SDK系统支持的最大版本 IPHONE_OS_VERSION_MAX_ALLOWED
所以,不能通过__IPHONE_OS_VERSION_MAX_ALLOWED来进行编译控制,只能在运行时判断iOS系统。