opt.

lib/view/page/ssh/term.dart

@@ -68,6 +68,18 @@ class _SSHPageState extends State<SSHPage> {
     _initVirtKeys();
   }
 
+  @override
+  void dispose() {
+    super.dispose();
+    _virtKeyLongPressTimer?.cancel();
+    _terminalController.dispose();
+    _client?.close();
+    // ignore: unnecessary_null_comparison
+    if (_session != null) {
+      _session.close();
+    }
+  }
+
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -80,12 +92,6 @@ class _SSHPageState extends State<SSHPage> {
     _virtKeysHeight = _media.size.height * 0.043 * _virtKeysList.length;
   }
 
-  @override
-  void dispose() {
-    _client?.close();
-    super.dispose();
-  }
-
   @override
   Widget build(BuildContext context) {
     Widget child = Scaffold(