refactor

flutter_hbb/lib/remote_page.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
-import 'package:provider/provider.dart';
 import 'common.dart';
 import 'package:flutter/services.dart';
+import 'dart:ui' as ui;
 
 class RemotePage extends StatefulWidget {
   RemotePage({Key key, this.id}) : super(key: key);
@@ -13,13 +13,37 @@ class RemotePage extends StatefulWidget {
 }
 
 class _RemotePageState extends State<RemotePage> {
-  FfiModel _ffi;
+  @override
+  void initState() {
+    super.initState();
+    FFI.connect(widget.id);
+  }
 
   @override
   Widget build(BuildContext context) {
-    _ffi = Provider.of<FfiModel>(context);
-    _ffi.connect(widget.id);
     // https://stackoverflow.com/questions/46640116/make-flutter-application-fullscreen
     SystemChrome.setEnabledSystemUIOverlays([]);
+    return CustomPaint(
+      painter: new ImageEditor(image: null),
+    );
+  }
+}
+
+class ImageEditor extends CustomPainter {
+  ImageEditor({
+    this.image,
+  });
+
+  ui.Image image;
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    if (image = null) return;
+    canvas.drawImage(image, new Offset(0.0, 0.0), new Paint());
+  }
+
+  @override
+  bool shouldRepaint(CustomPainter oldDelegate) {
+    return false;
   }
 }