如何在Android应用程序中检查WiFi网络是否受浏览器密码保护？

Question

是否可以通过Android应用程序内部的浏览器密码检查来检查wifi网络是否受到保护？

Answer 1

From the documentation for HttpURLConnection :

Some Wi-Fi networks block Internet access until the user clicks through a sign-on page. Such sign-on pages are typically presented by using HTTP redirects. You can use getURL() to test if your connection has been unexpectedly redirected. This check is not valid until after the response headers have been received, which you can trigger by calling getHeaderFields() or getInputStream().