Settings Page

You may open device setting application pages by using a combination of Intent & SA.Android.Provider.SA_Settings  see the example below:

using SA.Android.App;
using SA.Android.Content;
using AN_Settings = SA.Android.Provider.AN_Settings;
...

var intent = new AN_Intent(AN_Settings.ACTION_SETTINGS);
AN_MainActivity.Instance.StartActivity(intent);

Feel free to explore another SA_Settings provider actions. 

The SA.Android.Provider.SA_Settings  class is designed as a reflection of Android android.provider.Settings

 

The same way you can also lunch let's say a gallery app:

var intent = new AN_Intent();  
intent.SetAction(AN_Intent.ACTION_VIEW);  
intent.SetType("image/*");
intent.AddFlags(AN_Intent.FLAG_ACTIVITY_NEW_TASK);
AN_MainActivity.Instance.StartActivity(intent);