判断当前是否是WIFI连接状态

public static boolean isWifiConnected(Context context) {
   ConnectivityManager connectivityManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

   NetworkInfo wifiNetworkInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
   if (wifiNetworkInfo.isConnected()) {
       return true;
   }
   return false;
}