Show SSH exceptions as useful error messages in SnackBars

app/lib/main.dart

@@ -103,8 +103,6 @@ class _MyHomePageState extends State<MyHomePage> {
   Future<void> doSSH(String user) async {
     SSHSocket? socket;
 
-    print("Connecting to SSH server...");
-
     try {
       socket = await SSHSocket.connect(
         '192.168.0.15',
@@ -123,11 +121,25 @@ class _MyHomePageState extends State<MyHomePage> {
       setState(() {
         _output = utf8.decode(uptime);
       });
-    } catch (e) {
+    } on SSHAuthError catch (_) {
-      print("Error: $e");
+      ScaffoldMessenger.of(context).showSnackBar(
-      setState(() {
+        SnackBar(
-        _output = "Error: $e";
+          content: Text(
-      });
+            "Error! Server rejected our key. Maybe you need to register it first? Or you do not have access to this lock.",
+          ),
+          duration: const Duration(seconds: 3),
+        ),
+      );
+      return;
+    } on SocketException catch (_) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(
+            "Error! Could not connect to SSH server. Maybe you are not in the right wifi network?",
+          ),
+          duration: const Duration(seconds: 3),
+        ),
+      );
       return;
     }
   }