prepare keyboard

flutter_hbb/lib/home_page.dart

@@ -79,7 +79,7 @@ class _HomePageState extends State<HomePage> {
                         fontSize: 30,
                         color: Color(0xFF00B6F0),
                       ),
-                      keyboardType: TextInputType.number,
+                      // keyboardType: TextInputType.number,
                       decoration: InputDecoration(
                         labelText: 'Remote ID',
                         border: InputBorder.none,

flutter_hbb/lib/remote_page.dart

@@ -23,6 +23,7 @@ class _RemotePageState extends State<RemotePage> {
   Timer _interval;
   bool _showBar = true;
   double _bottom = 0;
+  final FocusNode _focusNode = FocusNode();
 
   @override
   void initState() {
@@ -39,6 +40,7 @@ class _RemotePageState extends State<RemotePage> {
 
   @override
   void dispose() {
+    _focusNode.dispose();
     super.dispose();
     FFI.close();
     _interval.cancel();
@@ -72,12 +74,19 @@ class _RemotePageState extends State<RemotePage> {
     }
   }
 
+  void _handleKeyEvent(RawKeyEvent event) {
+    print('$event');
+  }
+
   @override
   Widget build(BuildContext context) {
     // Size size = MediaQueryData.fromWindow(ui.window).size;
     // MediaQuery.of(context).size.height;
     EasyLoading.instance.loadingStyle = EasyLoadingStyle.light;
-    return WillPopScope(
+    return RawKeyboardListener(
+        focusNode: _focusNode,
+        onKey: _handleKeyEvent,
+        child: WillPopScope(
             onWillPop: () async {
               close();
               return false;
@@ -110,9 +119,11 @@ class _RemotePageState extends State<RemotePage> {
                               IconButton(
                                   color: Colors.white,
                                   icon: Icon(Icons.keyboard),
-                            onPressed: () => SystemChannels.textInput
-                                .invokeMethod('TextInput.show'),
-                          ),
+                                  onPressed: () {
+                                    SystemChannels.textInput
+                                        .invokeMethod('TextInput.show');
+                                    _focusNode.requestFocus();
+                                  }),
                               Transform.rotate(
                                   angle: 15 * math.pi / 180,
                                   child: IconButton(
@@ -159,7 +170,7 @@ class _RemotePageState extends State<RemotePage> {
                       CursorPaint(),
                     ]),
                   ),
-            ))));
+                )))));
   }
 
   void close() {