Mobile: Plan for Thursday 5/3 (week 10) - and preparation

Teachers plan for the day

• Follow up on the weeks of study
• Short about Options menu and inflate
• Special about using customized efficient ListView (and Spinner = combobox)
  link: http://bjoerks.net/klasser/Mobile_2015_Foraar/materials/Bjoerks_ListeDemoActivity_20150225.zip
• Accessing webservice for external data
  I might be inspired from examples from last year:
  - http://bjoerks.net/klasser/Mobile_2014_Foraar/Undervisningsplaner/dm12x_MOB_Uge09-Plan.htm
  I will try to come up with a example HttpClient instead of HttpURLConnection
  – HttpClient look a little more like WebClient in C# and is more easy to use asynchronous, which is a must on Mobile now.
  I have not changed my example from HttpRLConnection to 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)
  
  

Prepare yourself by before lecture

- viewing following toturial this playlist: https://www.youtube.com/playlist?list=PL6gx4Cwl9DGBsvRxJJOzG4r4k_zLKrnxl

45, 46 (Simple ListView)
47 (Custom ListView Adapter)

- reading briefly about

Tutorial - simple ListView:  http://hmkcode.com/android-creating-simple-listview/
Tutorial – customer ListView:  http://www.vogella.com/tutorials/AndroidListView/article.html#adapterown_example
Tutorial – customer ListView and performance:  http://www.vogella.com/tutorials/AndroidListView/article.html#adapterperformance
Tutorial – Creating an Options Menu: http://developer.android.com/guide/topics/ui/menus.html#options-menu

Example -  Android Asynchronous Http Client: 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)

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

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