added save image and more feature

lib/model/model_data.g.dart

@@ -0,0 +1,43 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'model_data.dart';
+
+// **************************************************************************
+// TypeAdapterGenerator
+// **************************************************************************
+
+class ModelAdapter extends TypeAdapter<Model> {
+  @override
+  final int typeId = 0;
+
+  @override
+  Model read(BinaryReader reader) {
+    final numOfFields = reader.readByte();
+    final fields = <int, dynamic>{
+      for (int i = 0; i < numOfFields; i++) reader.readByte(): reader.read(),
+    };
+    return Model()
+      ..createdDate = fields[0] as DateTime
+      ..datanya = fields[1] as String;
+  }
+
+  @override
+  void write(BinaryWriter writer, Model obj) {
+    writer
+      ..writeByte(2)
+      ..writeByte(0)
+      ..write(obj.createdDate)
+      ..writeByte(1)
+      ..write(obj.datanya);
+  }
+
+  @override
+  int get hashCode => typeId.hashCode;
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is ModelAdapter &&
+          runtimeType == other.runtimeType &&
+          typeId == other.typeId;
+}