README.md

helloworld-xamarin

Author: Erik Jan de Wit
Level: Intermediate
Technologies: C# xamarin, iOS, android, RHMAP Summary: A demonstration of how to get started with remote cloud call in RHMAP. Community Project : Feed Henry Target Product: RHMAP
Product Versions: RHMAP 3.7.0+
Source: https://github.com/feedhenry-templates/helloworld-xamarin
Prerequisites: fh-dotnet-sdk : 3.+, Visual Studio: 2015, Xamarin Studio: 5.3, iOS SDK : iOS7+, android sdk 23

What is it?

Simple native iOS app and Android app based on Xamarin, to test your remote cloud connection in RHMAP. Its server side companion app: HelloWorld Cloud App. This template app demos how to intialize a cloud call and make calls to cloud endpoints. The app uses fh-dotnet-sdk.

If you do not have access to a RHMAP instance, you can sign up for a free instance at https://openshift.feedhenry.com/.

How do I run it?

RHMAP Studio

This application and its cloud services are available as a project template in RHMAP as part of the "Native Xamarin Hello World Project" template.

Local Clone (ideal for Open Source Development)

If you wish to contribute to this template, the following information may be helpful; otherwise, RHMAP and its build facilities are the preferred solution.

Build instructions

1. Clone this project

2. Populate helloworld-ios/fhconfig.plist for iOS or helloworld-android/Assets/fhconfig.properties with your values as explained in our documentation.

3. Open helloworld-xamarin.sln

4. Run the project

How does it work?

Init

When the view has loaded the FH.init call is done:

  await FHClient.Init();

That initialize the cloud connection.

Cloud call

In iOS-Template-App/HomeViewController.m the FH.init call is done:

 var response = await FH.Cloud ("hello", "GET", null, new Dictionary<string, string> () { { "hello", name.Text } });
 if (response.Error == null) {
  // cloudCall - success
  Console.WriteLine(response.GetResponseAsDictionary () ["msg"]);
 } else {
  //cloudCall - fail
 }