Mobile: Plan for Thursday 12/3 (week 11) - and preparation

Teachers plan for the day

Follow up on the weeks of study
Accessing webservice for external data (postponed from last week)
My example will be based on HttpRLConnection and not HttpClient, as I discovered there is discussion about only HttpURLConnection is supported by the Android team.
Android_HttpGetRequest_Syncrone_20150304.zip (Basic of making synchronized web call - http get request – only allowed in older android versions)
Android_HttpGetPostRequest_Syncrone_20150304.zip (Basic of making synchronized web call - http post request – only allowed in older android versions)
Android_HttpGetPostRequest_AssertXmlReq_20150304.zip (Expanded example with trick to make soap web call a little more easy)
Android_HttpGetPostRequest_AssertXmlReq_Asynk_20150304.zip (Last call is now done asynchronized by using AsyncTask – general async solution)
Briefly about using Json and Xml data (might be a topic for later)
Shortly how to set up webservice (WCF) for access with (REST) JSON, XML, and SOAP format
Example: focus on service contract (small adjustment) and web.config (it is here mostly is to be done)
- http://bjoerks.net/klasser/Mobile_2014_Foraar/Materiale/WcfSolutionSmallExampleSoapAndRest_201403062149.zip
- Greater example with source can be downloaded from http://webservicedemo.datamatiker-skolen.dk/ (most focus on the web.config file)

Prepare yourself by before lecture

- reading briefly about

Connecting to the Network: http://developer.android.com/training/basics/network-ops/connecting.html

- try to look at Fidler (se below) information when your are on browsing or accessing webservices by WcfTestClient

Example with other Http Clients
- eventual reading briefly about

Example with other Http Clients
Be aware of the text on official Android site above says -
“We recommend using HttpURLConnection for applications targeted at Gingerbread and higher. For more discussion of this topic, see the blog post Android's HTTP Clients.”)
- http://loopj.com/android-async-http/
- http://stackoverflow.com/questions/4457492/how-do-i-use-the-simple-http-client-in-android

Extra useful tools for making interacting with webservices:

· With WCF services (and ASMX) you can get the necessary data for SOAP call with WcfTestClient.exe you probably will find here

- "C: \ Program Files (x86) \ Microsoft Visual Studio 10.0 \ Common7 \ IDE \ WcfTestClient.exe"

· Fidler is a usefull tool to show all what is sent and received on the http protocol: http://www.telerik.com/download/fiddler
You can use this tool for discover how to interact with a webservice, by using the service from other applications.

Ideas for small exercises:

External data to be used with web access

· Webservices for retrieving data http://webservicedemo.datamatiker-skolen.dk/
Both with soap and REST call for JSON and XML

· Webservice with geodata from Odense Municipality http://geodata.odense.dk/datatothepeople/ for retrieving JSON or XML data for fx parks and playgrounds.

· Make an app, which can show a list of data retrieved from webservice – fx list of parks in Odense
When selecting an item show detail in another screen (activity)

· Make a RSS reader to get news from your room (Se fronter for link)

· Make a RSS reader to get news from http://dm-mobile.blogspot.dk/

More links about android

I have found this quite brilliant toturials that provides many concrete examples of use of various facilities:
http://www.vogella.com/tutorials/android.html
http://www.vogella.com/tutorials/Android/article.html
Fx Tutorial - more about ListView: http://www.vogella.com/tutorials/AndroidListView/article.html

Extra about parsing af XML og JSON

Slides and examples from the lecture is accessible here: http://bjoerks.net/klasser/Mobile_2015_Foraar/materials/
In this lecture produced: