LAMAD Windows Phone

Part 1 The Platform and SDK

Windows Phone 7 Mobile OS Developed by Microsoft Appeared in the US in 2010 Mango in 2011 Tango in 2012 Live Tiles Nokia Lumia 800

Market Share Market Share 2012  There is Hope!

Technology Application development in C# or VB GUI design in XAML ( Extensible Application Markup Language ) Declarative XML-based language Created by Microsoft

Future of the OS Future is not yet clear Windows Phone 8 Version 8 just appeared 2012! Game development maybe?

Installing development Kit Newest Software Development Kit (SDK) version is 8.0. It is free to download from Note! You need Windows 8 to use the newest SDK. We use 7.1.

SDK contents Microsoft Visual Studio [Programming tool] Expression Blend [Designing tool] Project templates[Out of the box code] Windows Phone Emulator[Test app without a device] Additional tools [Register, deploy apps, etc.]

Testing on device 1. Register: Fee is 99 €/year Up to 100 apps Students = free! 2. Registration tool 3. Install Zune: com/en-us/how- to/wp7/zune-software com/en-us/how- to/wp7/zune-software.

Deploy on a device 1. Deployment tool Note! Unlock the device before any operation! 2. xap file is created on compile.

Access to Store Publish, un-publish Upgrade apps Beta publishing Check statistics Modify pricing Monitor crashes MOPSI stats on marketplace

Hello World Task: “Adding a clickable check box to our main page.” When creating a new Solution, under the default project name we can spot the: Double click the MainPage.xaml file. MainPage.xaml MainPage.xaml.cs

Hello World XAML code is created in: MainPage.xaml Drag and drop CheckBox from Toolbox.

Compile and Run Debug > Start Debugging [F5] Select test environment ‘Play’ button shortcut

Publish App! Login at and complete steps 1 and 2http://create.msdn.com/

Part 2 Location

Working with Location Native location handling object (watcher) Initialize watcher We want to get position updates often

Working with Location Complete to handle every state of the watcher. HOMEWORK attempt to start location services

Working with Location Uninitialize Objects Taking location from event args

Adding a Map Drag map from ToolBox. Remove extra XAML. Name is enough!

Adding a Marker Open the MainPage.xaml.cs file Change the location to reflect user location. Hint: Study the positionChanged function described earlier. HOMEWORK

Test on Emulator Powerful tool to virtually update the position

Map Credentials We see the following message on the map: Enter a Map Key obtained from the specified URL. Note! Implement a Map Handler if you use maps on more pages. Keep the key in one place because map keys change often.

Part 3 JSON, HTTP request

Mobile – Server

JSON {"name": "mopsi","age": 4,"address": {"streetAddress": "länsikatu 15","city": "joensuu"},"users": [{"name": "pasi","location": "länsikatu 15"},{"name": "matti","location": "länsikatu 15"}]}

JSON in Windows Phone Native JSON Support Remember UTF – 8

Subtype Polymorphism Animal tom = new Cat(); Animal mopsi = new Dog(); Animal donald = new Duck(); tom.talk(); // prints “meow” mopsi.talk(); // prints “woof” donald.talk(); // prints “quack” Animal CatDogDuck talk(){ // not implemented } talk(){ print (“meow”); } talk(){ print (“woof”); } talk(){ print (“quack”); } inheritance base class (superclass) subclasses

Request types Animal CatDogDuck Request LoginReqShareLocationReqUsersDataReq

Examples Requesting friends active in the last week The process is fully encapsulated!

JSON request base class Serializing as JSON string Need to implement In each subclass

Publically available method talk() from Animal example asynchronous

Sending request information asynchronous JSON from ToString() method {"lat":"62.6","lon":"29.7","request_type":"user_location","userid":"2"}

Reading server response Handling good/bad response

Implementing a subclass location Server has a list of these. User ID is global