├── PollyMVVM
    ├── PollyMVVM
    │   ├── PollyMVVM.iOS
    │   │   ├── Assets.xcassets
    │   │   │   ├── Contents.json
    │   │   │   └── AppIcon.appiconset
    │   │   │   │   ├── ia-logo-120.png
    │   │   │   │   ├── ia-logo-180.png
    │   │   │   │   ├── ItunesArtwork@2x.png
    │   │   │   │   ├── Icon-App-20x20@1x.png
    │   │   │   │   ├── Icon-App-20x20@2x.png
    │   │   │   │   ├── Icon-App-20x20@3x.png
    │   │   │   │   ├── Icon-App-29x29@1x.png
    │   │   │   │   ├── Icon-App-29x29@2x.png
    │   │   │   │   ├── Icon-App-29x29@3x.png
    │   │   │   │   ├── Icon-App-40x40@1x.png
    │   │   │   │   ├── Icon-App-40x40@2x.png
    │   │   │   │   ├── Icon-App-40x40@3x.png
    │   │   │   │   ├── Icon-App-57x57@1x.png
    │   │   │   │   ├── Icon-App-57x57@2x.png
    │   │   │   │   ├── Icon-App-60x60@1x.png
    │   │   │   │   ├── Icon-App-72x72@1x.png
    │   │   │   │   ├── Icon-App-72x72@2x.png
    │   │   │   │   ├── Icon-App-76x76@1x.png
    │   │   │   │   ├── Icon-App-76x76@2x.png
    │   │   │   │   ├── Icon-App-76x76@3x.png
    │   │   │   │   ├── Icon-App-83.5x83.5@2x.png
    │   │   │   │   ├── Icon-Small-50x50@1x.png
    │   │   │   │   ├── Icon-Small-50x50@2x.png
    │   │   │   │   └── Contents.json
    │   │   ├── iTunesArtwork@1x.png
    │   │   ├── iTunesArtwork@2x.png
    │   │   ├── iTunesArtwork@3x.png
    │   │   ├── Resources
    │   │   │   ├── Default.png
    │   │   │   ├── Default@2x.png
    │   │   │   ├── Default-568h@2x.png
    │   │   │   ├── Default-Portrait.png
    │   │   │   ├── Default-Portrait@2x.png
    │   │   │   └── LaunchScreen.storyboard
    │   │   ├── Entitlements.plist
    │   │   ├── Main.cs
    │   │   ├── AppDelegate.cs
    │   │   ├── Info.plist
    │   │   ├── Properties
    │   │   │   └── AssemblyInfo.cs
    │   │   └── PollyMVVM.iOS.csproj
    │   ├── PollyMVVM.Android
    │   │   ├── Resources
    │   │   │   ├── mipmap-xxhdpi
    │   │   │   │   ├── ia_logo.png
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-xxxhdpi
    │   │   │   │   ├── ia_logo.png
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-hdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-ldpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-mdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── mipmap-xhdpi
    │   │   │   │   └── ic_launcher.png
    │   │   │   ├── values
    │   │   │   │   ├── Strings.xml
    │   │   │   │   └── styles.xml
    │   │   │   ├── layout
    │   │   │   │   ├── Main.axml
    │   │   │   │   ├── Toolbar.axml
    │   │   │   │   └── Tabbar.axml
    │   │   │   └── AboutResources.txt
    │   │   ├── Properties
    │   │   │   ├── AndroidManifest.xml
    │   │   │   └── AssemblyInfo.cs
    │   │   ├── Assets
    │   │   │   └── AboutAssets.txt
    │   │   ├── MainActivity.cs
    │   │   └── PollyMVVM.Android.csproj
    │   └── PollyMVVM
    │   │   ├── Views
    │   │       ├── MainPage.xaml.cs
    │   │       └── MainPage.xaml
    │   │   ├── App.xaml
    │   │   ├── PollyMVVM.csproj
    │   │   ├── App.xaml.cs
    │   │   └── ViewModels
    │   │       ├── ViewModelBase.cs
    │   │       └── MainPageViewModel.cs
    ├── PollyMVVM.Models
    │   ├── WaitRetryEvent.cs
    │   ├── CountriesResponse.cs
    │   ├── Country.cs
    │   ├── State.cs
    │   └── PollyMVVM.Models.csproj
    ├── PollyMVVM.Common
    │   ├── PollyMVVM.Common.csproj
    │   └── AppConstants.cs
    ├── PollyMVVM.Services
    │   ├── Abstractions
    │   │   ├── IClient.cs
    │   │   ├── ICountriesService.cs
    │   │   ├── IApiService.cs
    │   │   └── INetworkService.cs
    │   ├── Client.cs
    │   ├── PollyMVVM.Services.csproj
    │   ├── ApiService.cs
    │   ├── CountriesService.cs
    │   └── NetworkService.cs
    └── PollyMVVM.sln
├── README.md
├── .gitignore
└── LICENSE


/PollyMVVM/PollyMVVM/PollyMVVM.iOS/Assets.xcassets/Contents.json:
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1 | {
2 |   "info": {
3 |     "version": 1,
4 |     "author": "xcode"
5 |   }
6 | }


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/PollyMVVM/PollyMVVM/PollyMVVM.iOS/iTunesArtwork@1x.png:
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/PollyMVVM/PollyMVVM.Models/WaitRetryEvent.cs:
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1 | using Prism.Events;
2 | 
3 | namespace PollyMVVM.Models
4 | {
5 |     public class WaitRetryEvent : PubSubEvent<int> {}
6 | }
7 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Resources/mipmap-xhdpi/ic_launcher.png:
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/PollyMVVM/PollyMVVM.Common/PollyMVVM.Common.csproj:
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1 | <Project Sdk="Microsoft.NET.Sdk">
2 | 
3 |   <PropertyGroup>
4 |     <TargetFramework>netstandard2.0</TargetFramework>
5 |   </PropertyGroup>
6 | 
7 | </Project>
8 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Resources/values/Strings.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 | 	<string name="hello">Hello World, Click Me!</string>
4 | 	<string name="app_name">PollyMVVM.Droid</string>
5 | </resources>
6 | 


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/PollyMVVM/PollyMVVM.Models/CountriesResponse.cs:
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1 | using Newtonsoft.Json;
2 | namespace PollyMVVM.Models
3 | {
4 |     public class CountriesResponse
5 |     {
6 |         [JsonProperty("result")]
7 |         public Country[] Countries { get; set; }
8 |     }
9 | }


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/PollyMVVM/PollyMVVM.Models/Country.cs:
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1 | namespace PollyMVVM.Models
2 | {
3 |     public class Country
4 |     {
5 |         public string Code { get; set; }
6 |         public string Name { get; set; }
7 |         public State[] States { get; set; }
8 |     }
9 | }


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/PollyMVVM/PollyMVVM/PollyMVVM.iOS/Entitlements.plist:
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1 | <?xml version="1.0" encoding="UTF-8" ?>
2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3 | <plist version="1.0">
4 | <dict>
5 | </dict>
6 | </plist>
7 | 
8 | 


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/PollyMVVM/PollyMVVM.Common/AppConstants.cs:
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 1 | namespace PollyMVVM.Common
 2 | {
 3 |     public static class AppConstants
 4 |     {
 5 |         public const string BaseUrl = "https://api.printful.com";
 6 |         public const string ApiCountriesUrl = "/countries";
 7 |         public const string ContentType = "application/json";
 8 |     }
 9 | }
10 | 


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/PollyMVVM/PollyMVVM.Models/State.cs:
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 1 | namespace PollyMVVM.Models
 2 | {
 3 |     public class State
 4 |     {
 5 |         public string Code
 6 |         {
 7 |             get;
 8 |             set;
 9 |         }
10 | 
11 |         public string Name
12 |         {
13 |             get;
14 |             set;
15 |         }
16 |     }
17 | }
18 | 


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/PollyMVVM/PollyMVVM.Services/Abstractions/IClient.cs:
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 1 | using System;
 2 | using System.Net.Http;
 3 | using System.Threading.Tasks;
 4 | 
 5 | namespace PollyMVVM.Services.Abstractions
 6 | {
 7 |     public interface IClient
 8 |     {
 9 |         Task<HttpResponseMessage> Get(Uri uri);
10 |         Task<HttpResponseMessage> Post(Uri uri, HttpContent content);
11 |     }
12 | }
13 | 


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/PollyMVVM/PollyMVVM.Models/PollyMVVM.Models.csproj:
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 1 | <Project Sdk="Microsoft.NET.Sdk">
 2 | 
 3 |   <PropertyGroup>
 4 |     <TargetFramework>netstandard2.0</TargetFramework>
 5 |   </PropertyGroup>
 6 | 
 7 |   <ItemGroup>
 8 |     <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
 9 |     <PackageReference Include="Prism.Core" Version="7.1.0.123-pre" />
10 |   </ItemGroup>
11 | </Project>
12 | 


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/PollyMVVM/PollyMVVM.Services/Abstractions/ICountriesService.cs:
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 1 | using System.Threading.Tasks;
 2 | using PollyMVVM.Models;
 3 | 
 4 | namespace PollyMVVM.Services.Abstractions
 5 | {
 6 |     public interface ICountriesService
 7 |     {
 8 |         Task<Country[]> GetCountries();
 9 |         Task<Country[]> GetCountriesWithRetry();
10 |         Task<Country[]> GetCountriesWithWaitAndRetry();
11 |     }
12 | }
13 | 


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/PollyMVVM/PollyMVVM/PollyMVVM/Views/MainPage.xaml.cs:
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 1 | using System;
 2 | using System.Collections.Generic;
 3 | using System.Linq;
 4 | using System.Text;
 5 | using System.Threading.Tasks;
 6 | using Xamarin.Forms;
 7 | 
 8 | namespace PollyMVVM.Views
 9 | {
10 |     public partial class MainPage : ContentPage
11 |     {
12 |         public MainPage()
13 |         {
14 |             InitializeComponent();
15 |         }
16 |     }
17 | }


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/PollyMVVM/PollyMVVM/PollyMVVM/App.xaml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <prism:PrismApplication xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:prism="clr-namespace:Prism.Unity;assembly=Prism.Unity.Forms" x:Class="PollyMVVM.App">
3 |     <Application.Resources>
4 |         <!-- Application resource dictionary -->
5 |     </Application.Resources>
6 | </prism:PrismApplication>


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Resources/layout/Main.axml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
3 | 	<Button android:id="@+id/myButton" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/hello" />
4 | </LinearLayout>
5 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Resources/layout/Toolbar.axml:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="?attr/colorPrimary" android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" android:popupTheme="@style/ThemeOverlay.AppCompat.Light" />


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Properties/AndroidManifest.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.intelliabb.pollymvvm">
3 |     <uses-sdk android:minSdkVersion="21" />
4 |     <uses-permission android:name="android.permission.INTERNET" />
5 |     <application android:label="PollyMVVM.Android" android:icon="@mipmap/ic_launcher">
6 |     </application>
7 | </manifest>


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Resources/layout/Tabbar.axml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <android.support.design.widget.TabLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/sliding_tabs" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="?attr/colorPrimary" android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" app:tabIndicatorColor="@android:color/white" app:tabGravity="fill" app:tabMode="fixed" />


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/PollyMVVM/PollyMVVM/PollyMVVM.iOS/Main.cs:
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 1 | using System;
 2 | using System.Collections.Generic;
 3 | using System.Linq;
 4 | 
 5 | using Foundation;
 6 | using UIKit;
 7 | 
 8 | namespace PollyMVVM.iOS
 9 | {
10 |     public class Application
11 |     {
12 |         // This is the main entry point of the application.
13 |         static void Main(string[] args)
14 |         {
15 |             // if you want to use a different Application Delegate class from "AppDelegate"
16 |             // you can specify it here.
17 |             UIApplication.Main(args, null, "AppDelegate");
18 |         }
19 |     }
20 | }
21 | 


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/PollyMVVM/PollyMVVM/PollyMVVM/PollyMVVM.csproj:
--------------------------------------------------------------------------------
 1 | <Project Sdk="Microsoft.NET.Sdk">
 2 | 
 3 |   <PropertyGroup>
 4 |     <TargetFramework>netstandard2.0</TargetFramework>
 5 |   </PropertyGroup>
 6 | 
 7 |   <ItemGroup>
 8 |     <PackageReference Include="Xamarin.Forms" Version="3.1.0.583944" />
 9 |     <PackageReference Include="Prism.Unity.Forms" Version="7.1.0.172-pre" />
10 |   </ItemGroup>
11 | 
12 |   <ItemGroup>
13 |     <ProjectReference Include="..\..\PollyMVVM.Services\PollyMVVM.Services.csproj" />
14 |     <ProjectReference Include="..\..\PollyMVVM.Models\PollyMVVM.Models.csproj" />
15 |   </ItemGroup>
16 | </Project>


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/PollyMVVM/PollyMVVM.Services/Abstractions/IApiService.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Threading.Tasks;
 3 | 
 4 | namespace PollyMVVM.Services.Abstractions
 5 | {
 6 |     public interface IApiService
 7 |     {
 8 |         Task<T> GetAsync<T>(Uri uri) where T : class;
 9 | 
10 |         #region With Retries
11 |         Task<T> GetAndRetry<T>(Uri uri, int retryCount, Func<Exception, int, Task> onRetry = null) where T : class;
12 |         Task<T> GetAndRetry<T>(Uri uri, Func<int, TimeSpan> sleepDurationProvider, int retryCount, Func<Exception, TimeSpan, Task> onWaitAndRetry = null) where T : class;
13 |         #endregion
14 | 
15 |     }
16 | }


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Assets/AboutAssets.txt:
--------------------------------------------------------------------------------
 1 | Any raw assets you want to be deployed with your application can be placed in
 2 | this directory (and child directories) and given a Build Action of "AndroidAsset".
 3 | 
 4 | These files will be deployed with you package and will be accessible using Android's
 5 | AssetManager, like this:
 6 | 
 7 | public class ReadAsset : Activity
 8 | {
 9 |  protected override void OnCreate (Bundle bundle)
10 |  {
11 |      base.OnCreate (bundle);
12 | 
13 |      InputStream input = Assets.Open ("my_asset.txt");
14 |  }
15 | }
16 | 
17 | Additionally, some Android functions will automatically load asset files:
18 | 
19 | Typeface tf = Typeface.CreateFromAsset (Context.Assets, "fonts/samplefont.ttf");
20 | 


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/PollyMVVM/PollyMVVM.Services/Client.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Net.Http;
 3 | using System.Threading.Tasks;
 4 | using PollyMVVM.Common;
 5 | using PollyMVVM.Services.Abstractions;
 6 | 
 7 | namespace PollyMVVM.Services
 8 | {
 9 |     public class Client : IClient
10 |     {
11 |         readonly HttpClient _client;
12 | 
13 |         public Client()
14 |         {
15 |             _client = new HttpClient
16 |             {
17 |                 BaseAddress = new Uri(AppConstants.BaseUrl)
18 |             };
19 |         }
20 | 
21 |         public async Task<HttpResponseMessage> Get(Uri uri) => await _client.GetAsync(uri);
22 |         public async Task<HttpResponseMessage> Post(Uri uri, HttpContent content) => await _client.PostAsync(uri, content);
23 |     }
24 | }
25 | 


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/PollyMVVM/PollyMVVM.Services/PollyMVVM.Services.csproj:
--------------------------------------------------------------------------------
 1 | <Project Sdk="Microsoft.NET.Sdk">
 2 | 
 3 |   <PropertyGroup>
 4 |     <TargetFramework>netstandard2.0</TargetFramework>
 5 |   </PropertyGroup>
 6 | 
 7 |   <ItemGroup>
 8 |     <Folder Include="Abstractions\" />
 9 |   </ItemGroup>
10 |   <ItemGroup>
11 |     <PackageReference Include="Polly" Version="5.9.0" />
12 |     <PackageReference Include="modernhttpclient" Version="2.4.2" />
13 |     <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
14 |     <PackageReference Include="Prism.Core" Version="7.1.0.123-pre" />
15 |   </ItemGroup>
16 |   <ItemGroup>
17 |     <ProjectReference Include="..\PollyMVVM.Common\PollyMVVM.Common.csproj" />
18 |     <ProjectReference Include="..\PollyMVVM.Models\PollyMVVM.Models.csproj" />
19 |   </ItemGroup>
20 | </Project>
21 | 


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/PollyMVVM/PollyMVVM.Services/Abstractions/INetworkService.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Threading;
 3 | using System.Threading.Tasks;
 4 | 
 5 | namespace PollyMVVM.Services.Abstractions
 6 | {
 7 |     public interface INetworkService
 8 |     {
 9 |         Task<T> Retry<T>(Func<Task<T>> func);
10 |         Task<T> Retry<T>(Func<Task<T>> func, int retryCount);
11 |         Task<T> Retry<T>(Func<Task<T>> func, int retryCount, Func<Exception, int, Task> onRetry);
12 |         Task<T> WaitAndRetry<T>(Func<Task<T>> func, Func<int, TimeSpan> sleepDurationProvider);
13 |         Task<T> WaitAndRetry<T>(Func<Task<T>> func, Func<int, TimeSpan> sleepDurationProvider, int retryCount);
14 |         Task<T> WaitAndRetry<T>(Func<Task<T>> func, Func<int, TimeSpan> sleepDurationProvider, int retryCount, Func<Exception, TimeSpan, Task> onRetryAsync);
15 |     }
16 | }
17 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/MainActivity.cs:
--------------------------------------------------------------------------------
 1 | using Android.App;
 2 | using Android.Content.PM;
 3 | using Android.OS;
 4 | using Prism;
 5 | using Prism.Ioc;
 6 | 
 7 | namespace PollyMVVM.Droid
 8 | {
 9 |     [Activity(Label = "Polly MVVM", Icon = "@mipmap/ia_logo", Theme = "@style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
10 |     public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
11 |     {
12 |         protected override void OnCreate(Bundle bundle)
13 |         {
14 |             TabLayoutResource = Resource.Layout.Tabbar;
15 |             ToolbarResource = Resource.Layout.Toolbar;
16 | 
17 |             base.OnCreate(bundle);
18 | 
19 |             global::Xamarin.Forms.Forms.Init(this, bundle);
20 |             LoadApplication(new App(new AndroidInitializer()));
21 |         }
22 |     }
23 | 
24 |     public class AndroidInitializer : IPlatformInitializer
25 |     {
26 |         public void RegisterTypes(IContainerRegistry container)
27 |         {
28 |             // Register any platform specific implementations
29 |         }
30 |     }
31 | }
32 | 
33 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.iOS/AppDelegate.cs:
--------------------------------------------------------------------------------
 1 | using Foundation;
 2 | using Prism;
 3 | using Prism.Ioc;
 4 | using UIKit;
 5 | 
 6 | 
 7 | namespace PollyMVVM.iOS
 8 | {
 9 |     // The UIApplicationDelegate for the application. This class is responsible for launching the 
10 |     // User Interface of the application, as well as listening (and optionally responding) to 
11 |     // application events from iOS.
12 |     [Register("AppDelegate")]
13 |     public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate
14 |     {
15 |         //
16 |         // This method is invoked when the application has loaded and is ready to run. In this 
17 |         // method you should instantiate the window, load the UI into it and then make the window
18 |         // visible.
19 |         //
20 |         // You have 17 seconds to return from this method, or iOS will terminate your application.
21 |         //
22 |         public override bool FinishedLaunching(UIApplication app, NSDictionary options)
23 |         {
24 |             global::Xamarin.Forms.Forms.Init();
25 |             LoadApplication(new App(new iOSInitializer()));
26 | 
27 |             return base.FinishedLaunching(app, options);
28 |         }
29 |     }
30 | 
31 |     public class iOSInitializer : IPlatformInitializer
32 |     {
33 |         public void RegisterTypes(IContainerRegistry container)
34 |         {
35 | 
36 |         }
37 |     }
38 | }
39 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Properties/AssemblyInfo.cs:
--------------------------------------------------------------------------------
 1 | using System.Reflection;
 2 | using System.Runtime.CompilerServices;
 3 | using System.Runtime.InteropServices;
 4 | using Android.App;
 5 | 
 6 | // General Information about an assembly is controlled through the following 
 7 | // set of attributes. Change these attribute values to modify the information
 8 | // associated with an assembly.
 9 | [assembly: AssemblyTitle("PollyMVVM.Android")]
10 | [assembly: AssemblyDescription("")]
11 | [assembly: AssemblyConfiguration("")]
12 | [assembly: AssemblyCompany("")]
13 | [assembly: AssemblyProduct("PollyMVVM.Android")]
14 | [assembly: AssemblyCopyright("Copyright ©  2014")]
15 | [assembly: AssemblyTrademark("")]
16 | [assembly: AssemblyCulture("")]
17 | [assembly: ComVisible(false)]
18 | 
19 | // Version information for an assembly consists of the following four values:
20 | //
21 | //      Major Version
22 | //      Minor Version 
23 | //      Build Number
24 | //      Revision
25 | //
26 | // You can specify all the values or you can default the Build and Revision Numbers 
27 | // by using the '*' as shown below:
28 | // [assembly: AssemblyVersion("1.0.*")]
29 | [assembly: AssemblyVersion("1.0.0.0")]
30 | [assembly: AssemblyFileVersion("1.0.0.0")]
31 | 
32 | // Add some common permissions, these can be removed if not needed
33 | [assembly: UsesPermission(Android.Manifest.Permission.Internet)]
34 | [assembly: UsesPermission(Android.Manifest.Permission.WriteExternalStorage)]
35 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.iOS/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>UIDeviceFamily</key>
 6 | 	<array>
 7 | 		<integer>1</integer>
 8 | 		<integer>2</integer>
 9 | 	</array>
10 | 	<key>UISupportedInterfaceOrientations</key>
11 | 	<array>
12 | 		<string>UIInterfaceOrientationPortrait</string>
13 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
14 | 		<string>UIInterfaceOrientationLandscapeRight</string>
15 | 	</array>
16 | 	<key>UISupportedInterfaceOrientations~ipad</key>
17 | 	<array>
18 | 		<string>UIInterfaceOrientationPortrait</string>
19 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
20 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
21 | 		<string>UIInterfaceOrientationLandscapeRight</string>
22 | 	</array>
23 | 	<key>MinimumOSVersion</key>
24 | 	<string>8.0</string>
25 | 	<key>CFBundleDisplayName</key>
26 | 	<string>Polly MVVM</string>
27 | 	<key>CFBundleIdentifier</key>
28 | 	<string>com.intelliabb.pollymvvm</string>
29 | 	<key>CFBundleVersion</key>
30 | 	<string>1.0</string>
31 | 	<key>UILaunchStoryboardName</key>
32 | 	<string>LaunchScreen</string>
33 | 	<key>CFBundleName</key>
34 | 	<string>Polly MVVM</string>
35 | 	<key>CFBundleShortVersionString</key>
36 | 	<string>1</string>
37 | 	<key>XSAppIconAssets</key>
38 | 	<string>Assets.xcassets/AppIcon.appiconset</string>
39 | </dict>
40 | </plist>
41 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.iOS/Properties/AssemblyInfo.cs:
--------------------------------------------------------------------------------
 1 | using System.Reflection;
 2 | using System.Runtime.CompilerServices;
 3 | using System.Runtime.InteropServices;
 4 | 
 5 | // General Information about an assembly is controlled through the following 
 6 | // set of attributes. Change these attribute values to modify the information
 7 | // associated with an assembly.
 8 | [assembly: AssemblyTitle("PollyMVVM.iOS")]
 9 | [assembly: AssemblyDescription("")]
10 | [assembly: AssemblyConfiguration("")]
11 | [assembly: AssemblyCompany("")]
12 | [assembly: AssemblyProduct("PollyMVVM.iOS")]
13 | [assembly: AssemblyCopyright("Copyright ©  2014")]
14 | [assembly: AssemblyTrademark("")]
15 | [assembly: AssemblyCulture("")]
16 | 
17 | // Setting ComVisible to false makes the types in this assembly not visible 
18 | // to COM components.  If you need to access a type in this assembly from 
19 | // COM, set the ComVisible attribute to true on that type.
20 | [assembly: ComVisible(false)]
21 | 
22 | // The following GUID is for the ID of the typelib if this project is exposed to COM
23 | [assembly: Guid("72bdc44f-c588-44f3-b6df-9aace7daafdd")]
24 | 
25 | // Version information for an assembly consists of the following four values:
26 | //
27 | //      Major Version
28 | //      Minor Version 
29 | //      Build Number
30 | //      Revision
31 | //
32 | // You can specify all the values or you can default the Build and Revision Numbers 
33 | // by using the '*' as shown below:
34 | // [assembly: AssemblyVersion("1.0.*")]
35 | [assembly: AssemblyVersion("1.0.0.0")]
36 | [assembly: AssemblyFileVersion("1.0.0.0")]
37 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Resources/values/styles.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <resources>
 3 |     <style name="MainTheme" parent="MainTheme.Base">
 4 |     </style>
 5 |     <!-- Base theme applied no matter what API -->
 6 |     <style name="MainTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar">
 7 |         <!--If you are using revision 22.1 please use just windowNoTitle. Without android:-->
 8 |         <item name="windowNoTitle">true</item>
 9 |         <!--We will be using the toolbar so no need to show ActionBar-->
10 |         <item name="windowActionBar">false</item>
11 |         <!-- Set theme colors from http://www.google.com/design/spec/style/color.html#color-color-palette -->
12 |         <!-- colorPrimary is used for the default action bar background -->
13 |         <item name="colorPrimary">#2196F3</item>
14 |         <!-- colorPrimaryDark is used for the status bar -->
15 |         <item name="colorPrimaryDark">#1976D2</item>
16 |         <!-- colorAccent is used as the default value for colorControlActivated
17 |          which is used to tint widgets -->
18 |         <item name="colorAccent">#FF4081</item>
19 |         <!-- You can also set colorControlNormal, colorControlActivated
20 |          colorControlHighlight and colorSwitchThumbNormal. -->
21 |         <item name="windowActionModeOverlay">true</item>
22 |         <item name="android:datePickerDialogTheme">@style/AppCompatDialogStyle</item>
23 |     </style>
24 |     <style name="AppCompatDialogStyle" parent="Theme.AppCompat.Light.Dialog">
25 |         <item name="colorAccent">#FF4081</item>
26 |     </style>
27 | </resources>


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/PollyMVVM/PollyMVVM/PollyMVVM/App.xaml.cs:
--------------------------------------------------------------------------------
 1 | using Prism;
 2 | using Prism.Ioc;
 3 | using PollyMVVM.ViewModels;
 4 | using PollyMVVM.Views;
 5 | using Xamarin.Forms;
 6 | using Xamarin.Forms.Xaml;
 7 | using Prism.Unity;
 8 | using PollyMVVM.Services.Abstractions;
 9 | using PollyMVVM.Services;
10 | 
11 | [assembly: XamlCompilation(XamlCompilationOptions.Compile)]
12 | namespace PollyMVVM
13 | {
14 |     public partial class App : PrismApplication
15 |     {
16 |         /* 
17 |          * The Xamarin Forms XAML Previewer in Visual Studio uses System.Activator.CreateInstance.
18 |          * This imposes a limitation in which the App class must have a default constructor. 
19 |          * App(IPlatformInitializer initializer = null) cannot be handled by the Activator.
20 |          */
21 |         public App() : this(null) { }
22 | 
23 |         public App(IPlatformInitializer initializer) : base(initializer) { }
24 | 
25 |         protected override async void OnInitialized()
26 |         {
27 |             InitializeComponent();
28 |             await NavigationService.NavigateAsync($"{nameof(NavigationPage)}/{nameof(MainPage)}");
29 |         }
30 | 
31 |         protected override void RegisterTypes(IContainerRegistry containerRegistry)
32 |         {
33 |             containerRegistry.RegisterForNavigation<NavigationPage>();
34 |             containerRegistry.RegisterForNavigation<MainPage>();
35 | 
36 |             containerRegistry.Register<INetworkService, NetworkService>();
37 |             containerRegistry.Register<IApiService, ApiService>();
38 |             containerRegistry.Register<IClient, Client>();
39 |             containerRegistry.Register<ICountriesService, CountriesService>();
40 |         }
41 |     }
42 | }
43 | 


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/PollyMVVM/PollyMVVM/PollyMVVM/ViewModels/ViewModelBase.cs:
--------------------------------------------------------------------------------
 1 | using Prism.Mvvm;
 2 | using Prism.Navigation;
 3 | 
 4 | namespace PollyMVVM.ViewModels
 5 | {
 6 |     public class ViewModelBase : BindableBase, INavigationAware, IDestructible
 7 |     {
 8 |         protected INavigationService NavigationService { get; private set; }
 9 |         const string DEFAULT_LOADING = "Loading...";
10 | 
11 |         private string _title;
12 |         public string Title
13 |         {
14 |             get { return _title; }
15 |             set { SetProperty(ref _title, value); }
16 |         }
17 | 
18 |         private bool _isBusy;
19 |         public bool IsBusy
20 |         {
21 |             get { return _isBusy; }
22 |             set { SetProperty(ref _isBusy, value); }
23 |         }
24 | 
25 |         string _loadingText = DEFAULT_LOADING;
26 |         public string LoadingText
27 |         {
28 |             get { return _loadingText; }
29 |             set { SetProperty(ref _loadingText, value); }
30 |         }
31 | 
32 |         public ViewModelBase(INavigationService navigationService)
33 |         {
34 |             NavigationService = navigationService;
35 |         }
36 | 
37 |         protected void ShowLoading(string message = null)
38 |         {
39 |             IsBusy = true;
40 |             LoadingText = message ?? DEFAULT_LOADING;
41 |         }
42 | 
43 |         protected void DismissLoading()
44 |         {
45 |             IsBusy = false;
46 |         }
47 | 
48 |         public void OnNavigatedFrom(INavigationParameters parameters) { }
49 | 
50 |         public void OnNavigatedTo(INavigationParameters parameters) { }
51 | 
52 |         public void OnNavigatingTo(INavigationParameters parameters) { }
53 | 
54 |         public void Destroy() { }
55 |     }
56 | }
57 | 


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/PollyMVVM/PollyMVVM.Services/ApiService.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Threading.Tasks;
 3 | using Newtonsoft.Json;
 4 | using PollyMVVM.Services.Abstractions;
 5 | 
 6 | namespace PollyMVVM.Services
 7 | {
 8 |     public class ApiService : IApiService
 9 |     {
10 |         readonly IClient _client;
11 |         readonly INetworkService _networkService;
12 | 
13 |         public ApiService(IClient client, INetworkService networkService)
14 |         {
15 |             _client = client;
16 |             _networkService = networkService;
17 |         }
18 | 
19 |         public async Task<T> GetAsync<T>(Uri uri) where T : class
20 |         {
21 |             return await ProcessGetRequest<T>(uri);
22 |         }
23 | 
24 |         #region With Retries
25 | 
26 |         public async Task<T> GetAndRetry<T>(Uri uri, int retryCount, Func<Exception, int, Task> onRetry = null) where T : class
27 |         {
28 |             var func = new Func<Task<T>>(() => ProcessGetRequest<T>(uri));
29 |             return await _networkService.Retry<T>(func, retryCount, onRetry);
30 |         }
31 | 
32 |         public async Task<T> GetAndRetry<T>(Uri uri, Func<int, TimeSpan> sleepDurationProvider, int retryCount, Func<Exception, TimeSpan, Task> onWaitAndRetry = null) where T : class
33 |         {
34 |             var func = new Func<Task<T>>(() => ProcessGetRequest<T>(uri));
35 |             return await _networkService.WaitAndRetry<T>(func, sleepDurationProvider, retryCount, onWaitAndRetry);
36 |         }
37 | 
38 |         #endregion
39 | 
40 |         #region Inner Methods
41 | 
42 |         async Task<T> ProcessGetRequest<T>(Uri uri)
43 |         {
44 |             var response = await _client.Get(uri);
45 |             var rawResponse = await response.Content.ReadAsStringAsync();
46 |             return JsonConvert.DeserializeObject<T>(rawResponse);
47 |         }
48 | 
49 |         #endregion
50 |     }
51 | }
52 | 


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/PollyMVVM/PollyMVVM/PollyMVVM.Android/Resources/AboutResources.txt:
--------------------------------------------------------------------------------
 1 | Images, layout descriptions, binary blobs and string dictionaries can be included 
 2 | in your application as resource files.  Various Android APIs are designed to 
 3 | operate on the resource IDs instead of dealing with images, strings or binary blobs 
 4 | directly.
 5 | 
 6 | For example, a sample Android app that contains a user interface layout (main.xml),
 7 | an internationalization string table (strings.xml) and some icons (drawable-XXX/icon.png) 
 8 | would keep its resources in the "Resources" directory of the application:
 9 | 
10 | Resources/
11 |     drawable-hdpi/
12 |         icon.png
13 | 
14 |     drawable-ldpi/
15 |         icon.png
16 | 
17 |     drawable-mdpi/
18 |         icon.png
19 | 
20 |     layout/
21 |         main.xml
22 | 
23 |     values/
24 |         strings.xml
25 | 
26 | In order to get the build system to recognize Android resources, set the build action to
27 | "AndroidResource".  The native Android APIs do not operate directly with filenames, but 
28 | instead operate on resource IDs.  When you compile an Android application that uses resources, 
29 | the build system will package the resources for distribution and generate a class called
30 | "Resource" that contains the tokens for each one of the resources included. For example, 
31 | for the above Resources layout, this is what the Resource class would expose:
32 | 
33 | public class Resource {
34 |     public class drawable {
35 |         public const int icon = 0x123;
36 |     }
37 | 
38 |     public class layout {
39 |         public const int main = 0x456;
40 |     }
41 | 
42 |     public class strings {
43 |         public const int first_string = 0xabc;
44 |         public const int second_string = 0xbcd;
45 |     }
46 | }
47 | 
48 | You would then use R.drawable.icon to reference the drawable/icon.png file, or Resource.layout.main 
49 | to reference the layout/main.xml file, or Resource.strings.first_string to reference the first 
50 | string in the dictionary file values/strings.xml.
51 | 


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/PollyMVVM/PollyMVVM/PollyMVVM/Views/MainPage.xaml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <ContentPage xmlns="http://xamarin.com/schemas/2014/forms" 
 3 |              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
 4 |              x:Class="PollyMVVM.Views.MainPage" 
 5 |              Title="{Binding Title}"
 6 |              IsBusy="{Binding IsBusy}">
 7 | 
 8 |     <ContentPage.ToolbarItems>
 9 |         <ToolbarItem Name="Reset" Text="Reset" Command="{Binding ClearCommand}" />
10 |     </ContentPage.ToolbarItems>
11 |     
12 |     <Grid>
13 |         <Grid.RowDefinitions>
14 |             <RowDefinition Height="Auto"/>
15 |             <RowDefinition Height="*"/>
16 |         </Grid.RowDefinitions>
17 | 
18 |         <StackLayout>
19 |             <Button Text="Load Countries" Command="{Binding LoadCountriesCommand}"/>
20 |             <Button Text="Load Countries Retry" Command="{Binding LoadCountriesRetryCommand}" CommandParameter="false"/>
21 |             <Button Text="Load Countries WaitAndRetry" Command="{Binding LoadCountriesRetryCommand}" CommandParameter="true"/>
22 |         </StackLayout>
23 |         
24 |         <ListView Grid.Row="1" ItemsSource="{Binding Countries}">
25 |             <ListView.ItemTemplate>
26 |                 <DataTemplate>
27 |                     <TextCell Text="{Binding Name}"/>
28 |                 </DataTemplate>
29 |             </ListView.ItemTemplate>
30 |         </ListView>
31 |         
32 |         <StackLayout Grid.Row="1"
33 |                      HorizontalOptions="Center"
34 |                      VerticalOptions="Start"
35 |                      IsVisible="{Binding IsBusy}">
36 |             <ActivityIndicator IsRunning="{Binding IsBusy}" HorizontalOptions="Center" VerticalOptions="Start"/>
37 |             <Label Text="{Binding LoadingText}" VerticalTextAlignment="Center"/>
38 | 
39 |             <StackLayout.Orientation>
40 |                 <OnPlatform x:TypeArguments="StackOrientation"
41 |                             iOS="Horizontal"
42 |                             Android="Vertical"/>
43 |             </StackLayout.Orientation>
44 |         </StackLayout> 
45 |     </Grid>
46 | </ContentPage>


--------------------------------------------------------------------------------
/PollyMVVM/PollyMVVM.Services/CountriesService.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Threading.Tasks;
 3 | using PollyMVVM.Common;
 4 | using PollyMVVM.Models;
 5 | using PollyMVVM.Services.Abstractions;
 6 | using Prism.Events;
 7 | 
 8 | namespace PollyMVVM.Services
 9 | {
10 |     public class CountriesService : ICountriesService
11 |     {
12 |         readonly IApiService _apiService;
13 |         readonly IEventAggregator _eventAggregator;
14 |         int DEFAULT_COUNT = 3;
15 |         Uri HOST = new Uri(AppConstants.ApiCountriesUrl);
16 | 
17 |         public CountriesService(IApiService apiService, IEventAggregator eventAggregator)
18 |         {
19 |             _apiService = apiService;
20 |             _eventAggregator = eventAggregator;
21 |         }
22 | 
23 |         public async Task<Country[]> GetCountries(){
24 |             var response = await _apiService.GetAsync<CountriesResponse>(new Uri(AppConstants.ApiCountriesUrl));
25 |             return response?.Countries;
26 |         }
27 | 
28 |         #region Retry
29 |         public async Task<Country[]> GetCountriesWithRetry()
30 |         {
31 |             var response = await _apiService.GetAndRetry<CountriesResponse>(HOST, DEFAULT_COUNT, OnRetry);
32 |             return response?.Countries;
33 |         }
34 | 
35 |         Task OnRetry(Exception e, int retryCount)
36 |         {
37 |             return Task.Factory.StartNew(() => {
38 |                 System.Diagnostics.Debug.WriteLine($"Retry - Attempt #{retryCount} to get countries.");
39 |             });
40 |         }
41 |         #endregion
42 | 
43 |         #region WaitAndRetry
44 |         public async Task<Country[]> GetCountriesWithWaitAndRetry()
45 |         {
46 |             var response = await _apiService.GetAndRetry<CountriesResponse>(HOST, GetSleepDuration, DEFAULT_COUNT, OnWaitAndRetry);
47 | 
48 |             return response?.Countries;
49 |         }
50 | 
51 |         TimeSpan GetSleepDuration(int retryCount)
52 |         {
53 |             // Let anyone listening know that we are about to retry.
54 |             _eventAggregator.GetEvent<WaitRetryEvent>().Publish(retryCount);
55 | 
56 |             return TimeSpan.FromSeconds(retryCount * 3);
57 |         }
58 | 
59 |         Task OnWaitAndRetry(Exception e, TimeSpan timeSpan)
60 |         {
61 |             return Task.Factory.StartNew(() => {
62 |                 System.Diagnostics.Debug.WriteLine($"WaitAndRetry - Trying to get countries in {timeSpan.ToString("g")}");
63 |             });
64 |         }
65 |         #endregion
66 | 
67 |     }
68 | }
69 | 


--------------------------------------------------------------------------------
/PollyMVVM/PollyMVVM/PollyMVVM.iOS/Resources/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6245" systemVersion="13F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="X5k-f2-b5h">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6238" />
 5 |     </dependencies>
 6 |     <scenes>
 7 |         <!--View Controller-->
 8 |         <scene sceneID="gAE-YM-kbH">
 9 |             <objects>
10 |                 <viewController id="X5k-f2-b5h" sceneMemberID="viewController">
11 |                     <layoutGuides>
12 |                         <viewControllerLayoutGuide type="top" id="Y8P-hJ-Z43" />
13 |                         <viewControllerLayoutGuide type="bottom" id="9ZL-r4-8FZ" />
14 |                     </layoutGuides>
15 |                     <view key="view" contentMode="scaleToFill" id="yd7-JS-zBw">
16 |                         <rect key="frame" x="0.0" y="0.0" width="600" height="600" />
17 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES" />
18 |                         <subviews>
19 |                             <imageView userInteractionEnabled="NO" contentMode="scaleToFill" misplaced="YES" image="Icon-60.png" translatesAutoresizingMaskIntoConstraints="NO" id="23">
20 |                                 <rect key="frame" x="270" y="270" width="60" height="60" />
21 |                                 <rect key="contentStretch" x="0.0" y="0.0" width="0.0" height="0.0" />
22 |                             </imageView>
23 |                         </subviews>
24 |                         <color key="backgroundColor" red="0.20392156862745098" green="0.59607843137254901" blue="0.85882352941176465" alpha="1" colorSpace="calibratedRGB" />
25 |                         <constraints>
26 |                             <constraint firstItem="23" firstAttribute="centerY" secondItem="yd7-JS-zBw" secondAttribute="centerY" priority="1" id="39" />
27 |                             <constraint firstItem="23" firstAttribute="centerX" secondItem="yd7-JS-zBw" secondAttribute="centerX" priority="1" id="41" />
28 |                         </constraints>
29 |                     </view>
30 |                 </viewController>
31 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="XAI-xm-WK6" userLabel="First Responder" sceneMemberID="firstResponder" />
32 |             </objects>
33 |             <point key="canvasLocation" x="349" y="339" />
34 |         </scene>
35 |     </scenes>
36 |     <resources>
37 |         <image name="Icon-60.png" width="180" height="180" />
38 |     </resources>
39 | </document>


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Polly-MVVM
 2 | 
 3 | Blog: [Enhance Your Xamarin.Forms App’s User Experience With Polly](https://wp.me/p1qCed-gL)
 4 | 
 5 | [Polly](https://github.com/App-vNext/Polly) has been around for a while and is a great tool for making your app more responsive and have a strategy around transient faults i.e. dropped network connection, weak transmission resulting in errors, etc. Polly has been document extensively on their page linked above, but in this session, I will demonstrate how to simplify the use of Polly in your MVVM app. You can build from here and make the strategies as complex as needed.
 6 | 
 7 | > Polly works with any .NET application. Which means that you can apply these resilience policies to your .NET API layer as well.
 8 | 
 9 | # Architecture
10 | I am going to structure my code in several layers/nodes/tiers however you want to call them. This will keep the code decoupled based on behavior. I will have the following layers,
11 | 
12 | - Models 
13 | - Common
14 | - Services
15 | - Core
16 | - iOS
17 | - Android
18 | 
19 | In my opinion, the best framework to write MVVM Xamarin.Forms is **Prism.Forms**. It provides services to handle navigation, dependency injection, events, etc. So I will be using **Prism.Forms** for this demo.
20 | 
21 | # Components
22 | These are the main components of the app that make use of **Polly** in a suitable manner possible.
23 | 
24 | ### IHttpClient
25 | We will use the mono managed `HttpClient` for this demo. But since we can swap the implementation of the client for numerous reasons, I am going to keep the client out of my main service using `IHttpClient` abstraction.
26 | 
27 | ### INetworkService
28 | This service will handle our **Polly** policies. I want to keep all my policies in one place so that I can easily manage them and test them.
29 | 
30 | ### IApiService
31 | This service will handle all API calls. We can choose to use **Polly** policies or not in this service. The developer has the freedom to call APIs as he needs because not all calls need a policy e.g. POST that can cause duplications or errors. All my functional services will inject `IApiService` and will provide APIs to make calls.
32 | 
33 | # Resilience Policies
34 | For this demo, I will implement `Retry` and `WaitAndRetry` policies. But use these as a starting point and build on top to get more complex policies for your app.
35 | 
36 | # Scope
37 | **Polly** offers a lot of cool ways to make your app's network resilience awesome. In this demo, I will cover how to use **Polly** in a MVVM-friendly manner that lets you test your service code independently. I will also cover some policies in this demo, and some more in my future demos.
38 | 
39 | ### In This Demo
40 | - Using **Polly** in a service
41 | - Inject policies service
42 | - `Retry` policy
43 | - `WaitAndRetry` policy
44 | 
45 | ### Future Demos
46 | - PolicyRegistry
47 | - Combined policies
48 | - Circuit Breaker
49 | - Cache 
50 | - Fallback
51 | 
52 | 


--------------------------------------------------------------------------------
/PollyMVVM/PollyMVVM.Services/NetworkService.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Threading.Tasks;
 3 | using Polly;
 4 | using PollyMVVM.Services.Abstractions;
 5 | 
 6 | namespace PollyMVVM.Services
 7 | {
 8 |     public class NetworkService : INetworkService
 9 |     {
10 |         public async Task<T> Retry<T>(Func<Task<T>> func)
11 |         {
12 |             return await RetryInner(func);
13 |         }
14 | 
15 |         public async Task<T> Retry<T>(Func<Task<T>> func, int retryCount)
16 |         {
17 |             return await RetryInner(func, retryCount);
18 |         }
19 | 
20 |         public async Task<T> Retry<T>(Func<Task<T>> func, int retryCount, Func<Exception, int, Task> onRetry)
21 |         {
22 |             return await RetryInner(func, retryCount, onRetry);
23 |         }
24 | 
25 |         public async Task<T> WaitAndRetry<T>(Func<Task<T>> func, Func<int, TimeSpan> sleepDurationProvider)
26 |         {
27 |             return await WaitAndRetryInner<T>(func, sleepDurationProvider);
28 |         }
29 | 
30 |         public async Task<T> WaitAndRetry<T>(Func<Task<T>> func, Func<int, TimeSpan> sleepDurationProvider, int retryCount)
31 |         {
32 |             return await WaitAndRetryInner<T>(func, sleepDurationProvider, retryCount);
33 |         }
34 | 
35 |         public async Task<T> WaitAndRetry<T>(Func<Task<T>> func, Func<int, TimeSpan> sleepDurationProvider, int retryCount, Func<Exception, TimeSpan, Task> onRetryAsync)
36 |         {
37 |             return await WaitAndRetryInner<T>(func, sleepDurationProvider, retryCount, onRetryAsync);
38 |         }
39 | 
40 |         #region Inner Methods
41 | 
42 |         internal async Task<T> RetryInner<T>(Func<Task<T>> func, int retryCount = 1, Func<Exception, int, Task> onRetry = null)
43 |         {
44 |             var onRetryInner = new Func<Exception, int, Task>((e, i) =>
45 |             {
46 |                 return Task.Factory.StartNew(() => {
47 | #if DEBUG
48 |                     System.Diagnostics.Debug.WriteLine($"Retry #{i} due to exception '{(e.InnerException ?? e).Message}'");
49 | #endif
50 |                 });
51 |             });
52 | 
53 |             return await Policy.Handle<Exception>().RetryAsync(retryCount, onRetry ?? onRetryInner).ExecuteAsync<T>(func);
54 |         }
55 | 
56 |         internal async Task<T> WaitAndRetryInner<T>(Func<Task<T>> func, Func<int, TimeSpan> sleepDurationProvider, int retryCount = 1, Func<Exception, TimeSpan, Task> onRetryAsync = null)
57 |         {
58 |             var onRetryInner = new Func<Exception, TimeSpan, Task>((e, t) =>
59 |             {
60 |                 return Task.Factory.StartNew(() => {
61 | #if DEBUG
62 |                     System.Diagnostics.Debug.WriteLine($"Retrying in {t.ToString("g")} due to exception '{(e.InnerException ?? e).Message}'");
63 | #endif
64 |                 });
65 |             });
66 | 
67 |             return await Policy.Handle<Exception>().WaitAndRetryAsync(retryCount, sleepDurationProvider, onRetryAsync ?? onRetryInner).ExecuteAsync<T>(func);
68 |         }
69 |         #endregion
70 |     }
71 | }
72 | 


--------------------------------------------------------------------------------
/PollyMVVM/PollyMVVM/PollyMVVM/ViewModels/MainPageViewModel.cs:
--------------------------------------------------------------------------------
  1 | using PollyMVVM.Services.Abstractions;
  2 | using Prism.Commands;
  3 | using Prism.Navigation;
  4 | using Prism.Services;
  5 | using PollyMVVM.Models;
  6 | using System;
  7 | using System.Threading.Tasks;
  8 | using Prism.Events;
  9 | 
 10 | namespace PollyMVVM.ViewModels
 11 | {
 12 |     public class MainPageViewModel : ViewModelBase
 13 |     {
 14 |         readonly ICountriesService _countriesService;
 15 |         readonly IPageDialogService _pageDialogService;
 16 |         readonly IEventAggregator _eventAggregator;
 17 | 
 18 |         public MainPageViewModel(INavigationService navigationService, ICountriesService countriesService, IPageDialogService pageDialogService,
 19 |                                  IEventAggregator eventAggregator)
 20 |             : base(navigationService)
 21 |         {
 22 |             Title = "Countries";
 23 |             _countriesService = countriesService;
 24 |             _pageDialogService = pageDialogService;
 25 |             _eventAggregator = eventAggregator;
 26 | 
 27 |             _eventAggregator.GetEvent<WaitRetryEvent>().Subscribe(OnRetrying);
 28 |             InitializeCommands();
 29 |         }
 30 | 
 31 |         public DelegateCommand LoadCountriesCommand { get; private set; }
 32 |         public DelegateCommand<object> LoadCountriesRetryCommand { get; private set; }
 33 |         public DelegateCommand ClearCommand { get; private set; }
 34 | 
 35 |         Country[] _countries;
 36 |         public Country[] Countries
 37 |         {
 38 |             get { return _countries; }
 39 |             set { SetProperty(ref _countries, value); }
 40 |         }
 41 | 
 42 |         void InitializeCommands()
 43 |         {
 44 |             LoadCountriesCommand = new DelegateCommand(OnLoadCountriesTapped);
 45 |             LoadCountriesRetryCommand = new DelegateCommand<object>(OnLoadCountriesRetryTapped);
 46 |             ClearCommand = new DelegateCommand(OnClearTapped);
 47 |         }
 48 | 
 49 |         void OnClearTapped()
 50 |         {
 51 |             Countries = null;
 52 |         }
 53 | 
 54 |         void OnRetrying(int retryCount)
 55 |         {
 56 |             // if retrying for the second time, let the user know politely
 57 |             if (retryCount > 1)
 58 |             {
 59 |                 LoadingText = "Still loading...";
 60 |             }
 61 |         }
 62 | 
 63 |         async void OnLoadCountriesTapped()
 64 |         {
 65 |             ShowLoading();
 66 |             await LoadCountries();
 67 |             DismissLoading();
 68 |         }
 69 | 
 70 |         async void OnLoadCountriesRetryTapped(object shouldWaitAndRetry)
 71 |         {
 72 |             ShowLoading();
 73 |             await LoadCountriesWithRetry(shouldWaitAndRetry.ToString() == "true");
 74 |             DismissLoading();
 75 |         }
 76 | 
 77 |         async Task LoadCountries()
 78 |         {
 79 |             try
 80 |             {
 81 |                 Countries = await _countriesService.GetCountries();
 82 |             }
 83 |             catch (Exception e)
 84 |             {
 85 |                 Console.WriteLine(e.Message);
 86 |                 ShowAlert("Could Not Load Countries. Try again later.");
 87 |             }
 88 |         }
 89 | 
 90 |         async Task LoadCountriesWithRetry(bool shouldWaitAndRetry)
 91 |         {
 92 |             try
 93 |             {
 94 |                 Countries = shouldWaitAndRetry ? await _countriesService.GetCountriesWithWaitAndRetry() : await _countriesService.GetCountriesWithRetry();
 95 |             }
 96 |             catch (Exception e)
 97 |             {
 98 |                 Console.WriteLine(e.Message);
 99 |                 ShowAlert("Could Not Load Countries. Try again later.");
100 |             }
101 |         }
102 | 
103 |         void ShowAlert(string message)
104 |         {
105 |             _pageDialogService.DisplayAlertAsync("Oops...", message, "OK");
106 |         }
107 |     }
108 | }
109 | 


--------------------------------------------------------------------------------
/PollyMVVM/PollyMVVM/PollyMVVM.iOS/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
  1 | {
  2 |   "images": [
  3 |     {
  4 |       "filename": "Icon-App-40x40@1x.png",
  5 |       "size": "20x20",
  6 |       "scale": "2x",
  7 |       "idiom": "iphone"
  8 |     },
  9 |     {
 10 |       "filename": "Icon-App-60x60@1x.png",
 11 |       "size": "20x20",
 12 |       "scale": "3x",
 13 |       "idiom": "iphone"
 14 |     },
 15 |     {
 16 |       "filename": "Icon-App-29x29@2x.png",
 17 |       "size": "29x29",
 18 |       "scale": "2x",
 19 |       "idiom": "iphone"
 20 |     },
 21 |     {
 22 |       "filename": "Icon-App-29x29@3x.png",
 23 |       "size": "29x29",
 24 |       "scale": "3x",
 25 |       "idiom": "iphone"
 26 |     },
 27 |     {
 28 |       "filename": "Icon-App-40x40@2x.png",
 29 |       "size": "40x40",
 30 |       "scale": "2x",
 31 |       "idiom": "iphone"
 32 |     },
 33 |     {
 34 |       "filename": "Icon-App-40x40@3x.png",
 35 |       "size": "40x40",
 36 |       "scale": "3x",
 37 |       "idiom": "iphone"
 38 |     },
 39 |     {
 40 |       "filename": "ia-logo-120.png",
 41 |       "size": "60x60",
 42 |       "scale": "2x",
 43 |       "idiom": "iphone"
 44 |     },
 45 |     {
 46 |       "filename": "ia-logo-180.png",
 47 |       "size": "60x60",
 48 |       "scale": "3x",
 49 |       "idiom": "iphone"
 50 |     },
 51 |     {
 52 |       "filename": "Icon-App-20x20@1x.png",
 53 |       "size": "20x20",
 54 |       "scale": "1x",
 55 |       "idiom": "ipad"
 56 |     },
 57 |     {
 58 |       "filename": "Icon-App-20x20@2x.png",
 59 |       "size": "20x20",
 60 |       "scale": "2x",
 61 |       "idiom": "ipad"
 62 |     },
 63 |     {
 64 |       "filename": "Icon-App-29x29@1x.png",
 65 |       "size": "29x29",
 66 |       "scale": "1x",
 67 |       "idiom": "ipad"
 68 |     },
 69 |     {
 70 |       "filename": "Icon-App-29x29@2x.png",
 71 |       "size": "29x29",
 72 |       "scale": "2x",
 73 |       "idiom": "ipad"
 74 |     },
 75 |     {
 76 |       "filename": "Icon-App-40x40@1x.png",
 77 |       "size": "40x40",
 78 |       "scale": "1x",
 79 |       "idiom": "ipad"
 80 |     },
 81 |     {
 82 |       "filename": "Icon-App-40x40@2x.png",
 83 |       "size": "40x40",
 84 |       "scale": "2x",
 85 |       "idiom": "ipad"
 86 |     },
 87 |     {
 88 |       "filename": "Icon-App-83.5x83.5@2x.png",
 89 |       "size": "83.5x83.5",
 90 |       "scale": "2x",
 91 |       "idiom": "ipad"
 92 |     },
 93 |     {
 94 |       "filename": "Icon-App-76x76@1x.png",
 95 |       "size": "76x76",
 96 |       "scale": "1x",
 97 |       "idiom": "ipad"
 98 |     },
 99 |     {
100 |       "filename": "Icon-App-76x76@2x.png",
101 |       "size": "76x76",
102 |       "scale": "2x",
103 |       "idiom": "ipad"
104 |     },
105 |     {
106 |       "filename": "ItunesArtwork@2x.png",
107 |       "size": "1024x1024",
108 |       "scale": "1x",
109 |       "idiom": "ios-marketing"
110 |     },
111 |     {
112 |       "role": "notificationCenter",
113 |       "size": "24x24",
114 |       "subtype": "38mm",
115 |       "scale": "2x",
116 |       "idiom": "watch"
117 |     },
118 |     {
119 |       "role": "notificationCenter",
120 |       "size": "27.5x27.5",
121 |       "subtype": "42mm",
122 |       "scale": "2x",
123 |       "idiom": "watch"
124 |     },
125 |     {
126 |       "role": "companionSettings",
127 |       "size": "29x29",
128 |       "scale": "2x",
129 |       "idiom": "watch"
130 |     },
131 |     {
132 |       "role": "companionSettings",
133 |       "size": "29x29",
134 |       "scale": "3x",
135 |       "idiom": "watch"
136 |     },
137 |     {
138 |       "role": "appLauncher",
139 |       "size": "40x40",
140 |       "subtype": "38mm",
141 |       "scale": "2x",
142 |       "idiom": "watch"
143 |     },
144 |     {
145 |       "role": "longLook",
146 |       "size": "44x44",
147 |       "subtype": "42mm",
148 |       "scale": "2x",
149 |       "idiom": "watch"
150 |     },
151 |     {
152 |       "role": "quickLook",
153 |       "size": "86x86",
154 |       "subtype": "38mm",
155 |       "scale": "2x",
156 |       "idiom": "watch"
157 |     },
158 |     {
159 |       "role": "quickLook",
160 |       "size": "98x98",
161 |       "subtype": "42mm",
162 |       "scale": "2x",
163 |       "idiom": "watch"
164 |     },
165 |     {
166 |       "size": "16x16",
167 |       "scale": "1x",
168 |       "idiom": "mac"
169 |     },
170 |     {
171 |       "size": "16x16",
172 |       "scale": "2x",
173 |       "idiom": "mac"
174 |     },
175 |     {
176 |       "size": "32x32",
177 |       "scale": "1x",
178 |       "idiom": "mac"
179 |     },
180 |     {
181 |       "size": "32x32",
182 |       "scale": "2x",
183 |       "idiom": "mac"
184 |     },
185 |     {
186 |       "size": "128x128",
187 |       "scale": "1x",
188 |       "idiom": "mac"
189 |     },
190 |     {
191 |       "size": "128x128",
192 |       "scale": "2x",
193 |       "idiom": "mac"
194 |     },
195 |     {
196 |       "size": "256x256",
197 |       "scale": "1x",
198 |       "idiom": "mac"
199 |     },
200 |     {
201 |       "size": "256x256",
202 |       "scale": "2x",
203 |       "idiom": "mac"
204 |     },
205 |     {
206 |       "size": "512x512",
207 |       "scale": "1x",
208 |       "idiom": "mac"
209 |     },
210 |     {
211 |       "size": "512x512",
212 |       "scale": "2x",
213 |       "idiom": "mac"
214 |     }
215 |   ],
216 |   "info": {
217 |     "version": 1,
218 |     "author": "xcode"
219 |   }
220 | }


--------------------------------------------------------------------------------
/PollyMVVM/PollyMVVM/PollyMVVM.Android/PollyMVVM.Android.csproj:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  3 |   <PropertyGroup>
  4 |     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
  5 |     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
  6 |     <ProductVersion>8.0.30703</ProductVersion>
  7 |     <SchemaVersion>2.0</SchemaVersion>
  8 |     <ProjectGuid>{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}</ProjectGuid>
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 10 |     <OutputType>Library</OutputType>
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 14 |     <FileAlignment>512</FileAlignment>
 15 |     <TargetFrameworkVersion>v8.1</TargetFrameworkVersion>
 16 |     <AndroidApplication>True</AndroidApplication>
 17 |     <AndroidResgenFile>Resources\Resource.designer.cs</AndroidResgenFile>
 18 |     <GenerateSerializationAssemblies>Off</GenerateSerializationAssemblies>
 19 |     <AndroidResgenClass>Resource</AndroidResgenClass>
 20 |     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
 21 |     <MonoAndroidResourcePrefix>Resources</MonoAndroidResourcePrefix>
 22 |     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
 23 |     <AndroidUseLatestPlatformSdk>true</AndroidUseLatestPlatformSdk>
 24 |     <AndroidStoreUncompressedFileExtensions />
 25 |     <MandroidI18n />
 26 |     <JavaMaximumHeapSize />
 27 |     <JavaOptions />
 28 |     <NuGetPackageImportStamp></NuGetPackageImportStamp>
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 30 | <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
 31 |     <DebugSymbols>true</DebugSymbols>
 32 |     <DebugType>full</DebugType>
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 34 |     <OutputPath>bin\Debug</OutputPath>
 35 |     <DefineConstants>DEBUG;</DefineConstants>
 36 |     <ErrorReport>prompt</ErrorReport>
 37 |     <WarningLevel>4</WarningLevel>
 38 |     <AndroidLinkMode>None</AndroidLinkMode>
 39 | <AndroidHttpClientHandlerType>System.Net.Http.HttpClientHandler</AndroidHttpClientHandlerType>
 40 | <JavaMaximumHeapSize>1G</JavaMaximumHeapSize>
 41 |   </PropertyGroup>
 42 |   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
 43 |     <DebugSymbols>true</DebugSymbols>
 44 |     <DebugType>pdbonly</DebugType>
 45 |     <Optimize>true</Optimize>
 46 |     <OutputPath>bin\Release</OutputPath>
 47 |     <ErrorReport>prompt</ErrorReport>
 48 |     <WarningLevel>4</WarningLevel>
 49 |     <AndroidManagedSymbols>true</AndroidManagedSymbols>
 50 |     <AndroidUseSharedRuntime>false</AndroidUseSharedRuntime>
 51 |   </PropertyGroup>
 52 |   <ItemGroup>
 53 |     <Reference Include="Mono.Android" />
 54 |     <Reference Include="System" />
 55 |     <Reference Include="System.Core" />
 56 |     <Reference Include="System.Xml.Linq" />
 57 |     <Reference Include="System.Xml" />
 58 |   </ItemGroup>
 59 |   <ItemGroup>
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 62 |     <PackageReference Include="Xamarin.Android.Support.v4" Version="25.4.0.2" />
 63 |     <PackageReference Include="Xamarin.Android.Support.v7.CardView" Version="25.4.0.2" />
 64 |     <PackageReference Include="Xamarin.Android.Support.v7.MediaRouter" Version="25.4.0.2" />
 65 |     <PackageReference Include="Xamarin.Forms">
 66 |       <Version>3.1.0.583944</Version>
 67 |     </PackageReference>
 68 |     <PackageReference Include="Prism.Unity.Forms">
 69 |       <Version>7.1.0.172-pre</Version>
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 71 |   </ItemGroup>
 72 |   <ItemGroup>
 73 |     <Compile Include="MainActivity.cs" />
 74 |     <Compile Include="Resources\Resource.Designer.cs" />
 75 |     <Compile Include="Properties\AssemblyInfo.cs" />
 76 |   </ItemGroup>
 77 |   <ItemGroup>
 78 |     <None Include="Resources\AboutResources.txt" />
 79 |     <None Include="Assets\AboutAssets.txt" />
 80 |   </ItemGroup>
 81 |   <ItemGroup>
 82 |     <AndroidResource Include="Resources\mipmap-hdpi\ic_launcher.png" />
 83 |     <AndroidResource Include="Resources\mipmap-mdpi\ic_launcher.png" />
 84 |     <AndroidResource Include="Resources\mipmap-xhdpi\ic_launcher.png" />
 85 |     <AndroidResource Include="Resources\mipmap-xxhdpi\ic_launcher.png" />
 86 |     <AndroidResource Include="Resources\mipmap-xxxhdpi\ic_launcher.png" />
 87 |     <AndroidResource Include="Resources\mipmap-xxxhdpi\ia_logo.png" />
 88 |     <AndroidResource Include="Resources\mipmap-xxhdpi\ia_logo.png" />
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 92 |   </ItemGroup>
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 95 |     <AndroidResource Include="Resources\layout\Toolbar.axml" />
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 98 |     </AndroidResource>
 99 |   </ItemGroup>
100 |   <ItemGroup>
101 |     <ProjectReference Include="..\PollyMVVM\PollyMVVM.csproj">
102 |       <Project>{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}</Project>
103 |       <Name>PollyMVVM</Name>
104 |     </ProjectReference>
105 |   </ItemGroup>
106 |   <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />
107 | </Project>


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
  1 | ## Ignore Visual Studio temporary files, build results, and
  2 | ## files generated by popular Visual Studio add-ons.
  3 | ##
  4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
  5 | 
  6 | # User-specific files
  7 | *.suo
  8 | *.user
  9 | *.userosscache
 10 | *.sln.docstates
 11 | 
 12 | # User-specific files (MonoDevelop/Xamarin Studio)
 13 | *.userprefs
 14 | 
 15 | # Build results
 16 | [Dd]ebug/
 17 | [Dd]ebugPublic/
 18 | [Rr]elease/
 19 | [Rr]eleases/
 20 | x64/
 21 | x86/
 22 | bld/
 23 | [Bb]in/
 24 | [Oo]bj/
 25 | [Ll]og/
 26 | 
 27 | # Visual Studio 2015 cache/options directory
 28 | .vs/
 29 | # Uncomment if you have tasks that create the project's static files in wwwroot
 30 | #wwwroot/
 31 | 
 32 | # MSTest test Results
 33 | [Tt]est[Rr]esult*/
 34 | [Bb]uild[Ll]og.*
 35 | 
 36 | # NUNIT
 37 | *.VisualState.xml
 38 | TestResult.xml
 39 | 
 40 | # Build Results of an ATL Project
 41 | [Dd]ebugPS/
 42 | [Rr]eleasePS/
 43 | dlldata.c
 44 | 
 45 | # .NET Core
 46 | project.lock.json
 47 | project.fragment.lock.json
 48 | artifacts/
 49 | **/Properties/launchSettings.json
 50 | 
 51 | *_i.c
 52 | *_p.c
 53 | *_i.h
 54 | *.ilk
 55 | *.meta
 56 | *.obj
 57 | *.pch
 58 | *.pdb
 59 | *.pgc
 60 | *.pgd
 61 | *.rsp
 62 | *.sbr
 63 | *.tlb
 64 | *.tli
 65 | *.tlh
 66 | *.tmp
 67 | *.tmp_proj
 68 | *.log
 69 | *.vspscc
 70 | *.vssscc
 71 | .builds
 72 | *.pidb
 73 | *.svclog
 74 | *.scc
 75 | 
 76 | # Chutzpah Test files
 77 | _Chutzpah*
 78 | 
 79 | # Visual C++ cache files
 80 | ipch/
 81 | *.aps
 82 | *.ncb
 83 | *.opendb
 84 | *.opensdf
 85 | *.sdf
 86 | *.cachefile
 87 | *.VC.db
 88 | *.VC.VC.opendb
 89 | 
 90 | # Visual Studio profiler
 91 | *.psess
 92 | *.vsp
 93 | *.vspx
 94 | *.sap
 95 | 
 96 | # TFS 2012 Local Workspace
 97 | $tf/
 98 | 
 99 | # Guidance Automation Toolkit
100 | *.gpState
101 | 
102 | # ReSharper is a .NET coding add-in
103 | _ReSharper*/
104 | *.[Rr]e[Ss]harper
105 | *.DotSettings.user
106 | 
107 | # JustCode is a .NET coding add-in
108 | .JustCode
109 | 
110 | # TeamCity is a build add-in
111 | _TeamCity*
112 | 
113 | # DotCover is a Code Coverage Tool
114 | *.dotCover
115 | 
116 | # Visual Studio code coverage results
117 | *.coverage
118 | *.coveragexml
119 | 
120 | # NCrunch
121 | _NCrunch_*
122 | .*crunch*.local.xml
123 | nCrunchTemp_*
124 | 
125 | # MightyMoose
126 | *.mm.*
127 | AutoTest.Net/
128 | 
129 | # Web workbench (sass)
130 | .sass-cache/
131 | 
132 | # Installshield output folder
133 | [Ee]xpress/
134 | 
135 | # DocProject is a documentation generator add-in
136 | DocProject/buildhelp/
137 | DocProject/Help/*.HxT
138 | DocProject/Help/*.HxC
139 | DocProject/Help/*.hhc
140 | DocProject/Help/*.hhk
141 | DocProject/Help/*.hhp
142 | DocProject/Help/Html2
143 | DocProject/Help/html
144 | 
145 | # Click-Once directory
146 | publish/
147 | 
148 | # Publish Web Output
149 | *.[Pp]ublish.xml
150 | *.azurePubxml
151 | # TODO: Comment the next line if you want to checkin your web deploy settings
152 | # but database connection strings (with potential passwords) will be unencrypted
153 | *.pubxml
154 | *.publishproj
155 | 
156 | # Microsoft Azure Web App publish settings. Comment the next line if you want to
157 | # checkin your Azure Web App publish settings, but sensitive information contained
158 | # in these scripts will be unencrypted
159 | PublishScripts/
160 | 
161 | # NuGet Packages
162 | *.nupkg
163 | # The packages folder can be ignored because of Package Restore
164 | **/packages/*
165 | # except build/, which is used as an MSBuild target.
166 | !**/packages/build/
167 | # Uncomment if necessary however generally it will be regenerated when needed
168 | #!**/packages/repositories.config
169 | # NuGet v3's project.json files produces more ignorable files
170 | *.nuget.props
171 | *.nuget.targets
172 | 
173 | # Microsoft Azure Build Output
174 | csx/
175 | *.build.csdef
176 | 
177 | # Microsoft Azure Emulator
178 | ecf/
179 | rcf/
180 | 
181 | # Windows Store app package directories and files
182 | AppPackages/
183 | BundleArtifacts/
184 | Package.StoreAssociation.xml
185 | _pkginfo.txt
186 | 
187 | # Visual Studio cache files
188 | # files ending in .cache can be ignored
189 | *.[Cc]ache
190 | # but keep track of directories ending in .cache
191 | !*.[Cc]ache/
192 | 
193 | # Others
194 | ClientBin/
195 | ~$*
196 | *~
197 | *.dbmdl
198 | *.dbproj.schemaview
199 | *.jfm
200 | *.pfx
201 | *.publishsettings
202 | orleans.codegen.cs
203 | 
204 | # Since there are multiple workflows, uncomment next line to ignore bower_components
205 | # (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
206 | #bower_components/
207 | 
208 | # RIA/Silverlight projects
209 | Generated_Code/
210 | 
211 | # Backup & report files from converting an old project file
212 | # to a newer Visual Studio version. Backup files are not needed,
213 | # because we have git ;-)
214 | _UpgradeReport_Files/
215 | Backup*/
216 | UpgradeLog*.XML
217 | UpgradeLog*.htm
218 | 
219 | # SQL Server files
220 | *.mdf
221 | *.ldf
222 | *.ndf
223 | 
224 | # Business Intelligence projects
225 | *.rdl.data
226 | *.bim.layout
227 | *.bim_*.settings
228 | 
229 | # Microsoft Fakes
230 | FakesAssemblies/
231 | 
232 | # GhostDoc plugin setting file
233 | *.GhostDoc.xml
234 | 
235 | # Node.js Tools for Visual Studio
236 | .ntvs_analysis.dat
237 | node_modules/
238 | 
239 | # Typescript v1 declaration files
240 | typings/
241 | 
242 | # Visual Studio 6 build log
243 | *.plg
244 | 
245 | # Visual Studio 6 workspace options file
246 | *.opt
247 | 
248 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
249 | *.vbw
250 | 
251 | # Visual Studio LightSwitch build output
252 | **/*.HTMLClient/GeneratedArtifacts
253 | **/*.DesktopClient/GeneratedArtifacts
254 | **/*.DesktopClient/ModelManifest.xml
255 | **/*.Server/GeneratedArtifacts
256 | **/*.Server/ModelManifest.xml
257 | _Pvt_Extensions
258 | 
259 | # Paket dependency manager
260 | .paket/paket.exe
261 | paket-files/
262 | 
263 | # FAKE - F# Make
264 | .fake/
265 | 
266 | # JetBrains Rider
267 | .idea/
268 | *.sln.iml
269 | 
270 | # CodeRush
271 | .cr/
272 | 
273 | # Python Tools for Visual Studio (PTVS)
274 | __pycache__/
275 | *.pyc
276 | 
277 | # Cake - Uncomment if you are using it
278 | # tools/**
279 | # !tools/packages.config
280 | 
281 | # Telerik's JustMock configuration file
282 | *.jmconfig
283 | 
284 | # BizTalk build output
285 | *.btp.cs
286 | *.btm.cs
287 | *.odx.cs
288 | *.xsd.cs
289 | 


--------------------------------------------------------------------------------
/PollyMVVM/PollyMVVM/PollyMVVM.iOS/PollyMVVM.iOS.csproj:
--------------------------------------------------------------------------------
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  4 |     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
  5 |     <Platform Condition=" '$(Platform)' == '' ">iPhoneSimulator</Platform>
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 10 |     <OutputType>Exe</OutputType>
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 12 |     <IPhoneResourcePrefix>Resources</IPhoneResourcePrefix>
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 14 |     <NuGetPackageImportStamp></NuGetPackageImportStamp>
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148 |   <ItemGroup>
149 |     <ProjectReference Include="..\PollyMVVM\PollyMVVM.csproj">
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151 |       <Name>PollyMVVM</Name>
152 |     </ProjectReference>
153 |   </ItemGroup>
154 |   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
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--------------------------------------------------------------------------------
/PollyMVVM/PollyMVVM.sln:
--------------------------------------------------------------------------------
  1 | 
  2 | Microsoft Visual Studio Solution File, Format Version 12.00
  3 | # Visual Studio 2012
  4 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PollyMVVM", "PollyMVVM\PollyMVVM\PollyMVVM.csproj", "{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}"
  5 | EndProject
  6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PollyMVVM.Android", "PollyMVVM\PollyMVVM.Android\PollyMVVM.Android.csproj", "{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}"
  7 | EndProject
  8 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PollyMVVM.iOS", "PollyMVVM\PollyMVVM.iOS\PollyMVVM.iOS.csproj", "{2B10017F-E658-499B-89ED-FEA5FC769A5E}"
  9 | EndProject
 10 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PollyMVVM.Services", "PollyMVVM.Services\PollyMVVM.Services.csproj", "{FCA56747-D2B7-4BA1-B54B-5875400499D9}"
 11 | EndProject
 12 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Platforms", "Platforms", "{A2A17535-D6B2-42D0-B19B-70BA4763AC56}"
 13 | EndProject
 14 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PollyMVVM.Common", "PollyMVVM.Common\PollyMVVM.Common.csproj", "{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}"
 15 | EndProject
 16 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PollyMVVM.Models", "PollyMVVM.Models\PollyMVVM.Models.csproj", "{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}"
 17 | EndProject
 18 | Global
 19 | 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 20 | 		Debug|Any CPU = Debug|Any CPU
 21 | 		Release|Any CPU = Release|Any CPU
 22 | 		Debug|iPhoneSimulator = Debug|iPhoneSimulator
 23 | 		Release|iPhoneSimulator = Release|iPhoneSimulator
 24 | 		Debug|iPhone = Debug|iPhone
 25 | 		Release|iPhone = Release|iPhone
 26 | 		Ad-Hoc|iPhone = Ad-Hoc|iPhone
 27 | 		AppStore|iPhone = AppStore|iPhone
 28 | 	EndGlobalSection
 29 | 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 30 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 31 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Debug|Any CPU.Build.0 = Debug|Any CPU
 32 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Release|Any CPU.ActiveCfg = Release|Any CPU
 33 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Release|Any CPU.Build.0 = Release|Any CPU
 34 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
 35 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
 36 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
 37 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
 38 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Debug|iPhone.ActiveCfg = Debug|Any CPU
 39 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Debug|iPhone.Build.0 = Debug|Any CPU
 40 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Release|iPhone.ActiveCfg = Release|Any CPU
 41 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Release|iPhone.Build.0 = Release|Any CPU
 42 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Ad-Hoc|iPhone.ActiveCfg = Debug|Any CPU
 43 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.Ad-Hoc|iPhone.Build.0 = Debug|Any CPU
 44 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.AppStore|iPhone.ActiveCfg = Debug|Any CPU
 45 | 		{5749EC19-B1A4-4CF9-94DD-FAD327D01A0D}.AppStore|iPhone.Build.0 = Debug|Any CPU
 46 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 47 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Debug|Any CPU.Build.0 = Debug|Any CPU
 48 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Release|Any CPU.ActiveCfg = Release|Any CPU
 49 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Release|Any CPU.Build.0 = Release|Any CPU
 50 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
 51 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
 52 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
 53 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
 54 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Debug|iPhone.ActiveCfg = Debug|Any CPU
 55 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Debug|iPhone.Build.0 = Debug|Any CPU
 56 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Release|iPhone.ActiveCfg = Release|Any CPU
 57 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Release|iPhone.Build.0 = Release|Any CPU
 58 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Ad-Hoc|iPhone.ActiveCfg = Debug|Any CPU
 59 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.Ad-Hoc|iPhone.Build.0 = Debug|Any CPU
 60 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.AppStore|iPhone.ActiveCfg = Debug|Any CPU
 61 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55}.AppStore|iPhone.Build.0 = Debug|Any CPU
 62 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Debug|Any CPU.ActiveCfg = Debug|iPhoneSimulator
 63 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Debug|Any CPU.Build.0 = Debug|iPhoneSimulator
 64 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Release|Any CPU.ActiveCfg = Release|iPhoneSimulator
 65 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Release|Any CPU.Build.0 = Release|iPhoneSimulator
 66 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Debug|iPhoneSimulator.ActiveCfg = Debug|iPhoneSimulator
 67 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Debug|iPhoneSimulator.Build.0 = Debug|iPhoneSimulator
 68 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Release|iPhoneSimulator.ActiveCfg = Release|iPhoneSimulator
 69 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Release|iPhoneSimulator.Build.0 = Release|iPhoneSimulator
 70 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Debug|iPhone.ActiveCfg = Debug|iPhone
 71 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Debug|iPhone.Build.0 = Debug|iPhone
 72 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Release|iPhone.ActiveCfg = Release|iPhone
 73 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Release|iPhone.Build.0 = Release|iPhone
 74 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Ad-Hoc|iPhone.ActiveCfg = Ad-Hoc|iPhone
 75 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.Ad-Hoc|iPhone.Build.0 = Ad-Hoc|iPhone
 76 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.AppStore|iPhone.ActiveCfg = AppStore|iPhone
 77 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E}.AppStore|iPhone.Build.0 = AppStore|iPhone
 78 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 79 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 80 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Release|Any CPU.ActiveCfg = Release|Any CPU
 81 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Release|Any CPU.Build.0 = Release|Any CPU
 82 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
 83 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
 84 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
 85 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
 86 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Debug|iPhone.ActiveCfg = Debug|Any CPU
 87 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Debug|iPhone.Build.0 = Debug|Any CPU
 88 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Release|iPhone.ActiveCfg = Release|Any CPU
 89 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Release|iPhone.Build.0 = Release|Any CPU
 90 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Ad-Hoc|iPhone.ActiveCfg = Release|Any CPU
 91 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.Ad-Hoc|iPhone.Build.0 = Release|Any CPU
 92 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.AppStore|iPhone.ActiveCfg = Release|Any CPU
 93 | 		{FCA56747-D2B7-4BA1-B54B-5875400499D9}.AppStore|iPhone.Build.0 = Release|Any CPU
 94 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 95 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Debug|Any CPU.Build.0 = Debug|Any CPU
 96 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Release|Any CPU.ActiveCfg = Release|Any CPU
 97 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Release|Any CPU.Build.0 = Release|Any CPU
 98 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
 99 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
100 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
101 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
102 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Debug|iPhone.ActiveCfg = Debug|Any CPU
103 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Debug|iPhone.Build.0 = Debug|Any CPU
104 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Release|iPhone.ActiveCfg = Release|Any CPU
105 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Release|iPhone.Build.0 = Release|Any CPU
106 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Ad-Hoc|iPhone.ActiveCfg = Release|Any CPU
107 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.Ad-Hoc|iPhone.Build.0 = Release|Any CPU
108 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.AppStore|iPhone.ActiveCfg = Release|Any CPU
109 | 		{5EE6D6CE-4416-46B4-AA76-36DDDCB0657B}.AppStore|iPhone.Build.0 = Release|Any CPU
110 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
111 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Debug|Any CPU.Build.0 = Debug|Any CPU
112 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Release|Any CPU.ActiveCfg = Release|Any CPU
113 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Release|Any CPU.Build.0 = Release|Any CPU
114 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
115 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
116 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
117 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
118 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Debug|iPhone.ActiveCfg = Debug|Any CPU
119 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Debug|iPhone.Build.0 = Debug|Any CPU
120 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Release|iPhone.ActiveCfg = Release|Any CPU
121 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Release|iPhone.Build.0 = Release|Any CPU
122 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Ad-Hoc|iPhone.ActiveCfg = Release|Any CPU
123 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.Ad-Hoc|iPhone.Build.0 = Release|Any CPU
124 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.AppStore|iPhone.ActiveCfg = Release|Any CPU
125 | 		{0AD7F8E1-6286-465C-B304-FD1159FE1BD8}.AppStore|iPhone.Build.0 = Release|Any CPU
126 | 	EndGlobalSection
127 | 	GlobalSection(NestedProjects) = preSolution
128 | 		{2DB91C30-9990-40A1-BA83-C8C1B0A0ED55} = {A2A17535-D6B2-42D0-B19B-70BA4763AC56}
129 | 		{2B10017F-E658-499B-89ED-FEA5FC769A5E} = {A2A17535-D6B2-42D0-B19B-70BA4763AC56}
130 | 	EndGlobalSection
131 | EndGlobal
132 | 


--------------------------------------------------------------------------------
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