From dad3082365ef9161e982fdf1a4dba5f83c63c3ad Mon Sep 17 00:00:00 2001
From: Simon Schick <simonsimcity@gmail.com>
Date: Mon, 4 Jun 2018 15:23:12 +0400
Subject: [PATCH] Sample: Catch if user disabled the system-app download
 manager on Android

---
 Sample/Droid/MainActivity.cs | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/Sample/Droid/MainActivity.cs b/Sample/Droid/MainActivity.cs
index f5ba61d..09ac713 100644
--- a/Sample/Droid/MainActivity.cs
+++ b/Sample/Droid/MainActivity.cs
@@ -124,7 +124,23 @@ protected override void OnCreate (Bundle savedInstanceState)
                     }
                 };
 
-                foo.StartDownloading(FindViewById<Switch>(Resource.Id.switch1).Checked);
+                try {
+                    foo.StartDownloading(FindViewById<Switch>(Resource.Id.switch1).Checked);
+                } catch (Java.Lang.IllegalArgumentException) {
+                    foo.File = null;
+                    button.Text = "Download crashed.";
+
+                    try {
+                        //Open the specific App Info page:
+                        Intent intent = new Intent(Android.Provider.Settings.ActionApplicationDetailsSettings);
+                        intent.SetData(Android.Net.Uri.Parse("package:com.android.providers.downloads"));
+                        StartActivity(intent);
+                    } catch (ActivityNotFoundException) {
+                        //Open the generic Apps page:
+                        Intent intent = new Intent(Android.Provider.Settings.ActionManageApplicationsSettings);
+                        StartActivity(intent);
+                    }
+                }
             };
         }
     }