Regarding android java in c#

How does one use these things in c#:

PackageManager
Intent
Reflection (NOT System.Reflection)
ConnectivityManager
NetworkInfo

i'm guess it would be a namespace like

Code (CSharp):

1. using android.blahblah

I cannot find this information anywhere.

 

Unity does not expose any native android API. You need to create an native plugin for native android code.
See for an example:

 

so there is no way to just do instead of "using blahblah;" to do a AndroidJavaClass ajc = new AndroidJavaClass("com.android.????");

 

here is more specific details:

Code (CSharp):

1. public void checkifonline()
2.     {
3.         bool haveConnectedWifi = false;
4.         bool haveConnectedMobile = false;
5.  
6.         ConnectivityManager cm = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
7.         NetworkInfo[] netInfo = cm.getAllNetworkInfo();
8.         for (NetworkInfo ni : netInfo)
9.         {
10.             if (ni.getTypeName().equalsIgnoreCase("WIFI"))
11.                 if (ni.isConnected())
12.                     haveConnectedWifi = true;
13.             if (ni.getTypeName().equalsIgnoreCase("MOBILE"))
14.                 if (ni.isConnected())
15.                     haveConnectedMobile = true;
16.         }
17.  
18.         if (haveConnectedWifi == false && haveConnectedMobile == false)
19.         {
20.  
21.             // TODO (could make massage and than finish();
22.         }
23.     }

has worked for people without doing things like that..how did they do it? it is public void so they did it in c# somehow