Move implementation of INotifyPropertyChanged in another class

Author: yauhenipakala

src/FreshMvvm/FreshBasePageModel.cs

@@ -1,15 +1,10 @@
 using System;
-using System.ComponentModel;
-using System.Threading.Tasks;
 using Xamarin.Forms;
-using System.Runtime.CompilerServices;
 
 namespace FreshMvvm
 {
-    public abstract class FreshBasePageModel : INotifyPropertyChanged
-    {
-        public event PropertyChangedEventHandler PropertyChanged;
-
+    public abstract class FreshBasePageModel : FreshNotifyPropertyChanged
+	{
         /// <summary>
         /// The previous page model, that's automatically filled, on push
         /// </summary>
@@ -41,14 +36,6 @@ public virtual void Init (object initData)
         {
         }
 
-        protected void RaisePropertyChanged ([CallerMemberName] string propertyName = null)
-        {
-            var handler = PropertyChanged;
-            if (handler != null) {
-                handler (this, new PropertyChangedEventArgs (propertyName));
-            }
-        }
-
         internal void WireEvents (Page page)
         {
             page.Appearing += ViewIsAppearing;

src/FreshMvvm/FreshMvvm.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -31,6 +31,7 @@
     <ConsolePause>false</ConsolePause>
   </PropertyGroup>
   <ItemGroup>
+    <Compile Include="FreshNotifyPropertyChanged.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="FreshBasePageModel.cs" />
     <Compile Include="FreshIOC.cs" />

src/FreshMvvm/FreshNotifyPropertyChanged.cs

@@ -0,0 +1,19 @@
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+namespace FreshMvvm
+{
+	public abstract class FreshNotifyPropertyChanged : INotifyPropertyChanged
+	{
+		public event PropertyChangedEventHandler PropertyChanged;
+
+		protected void RaisePropertyChanged([CallerMemberName] string propertyName = null)
+		{
+			var handler = PropertyChanged;
+			if (handler != null)
+			{
+				handler(this, new PropertyChangedEventArgs(propertyName));
+			}
+		}
+	}
+}