deep dive xamarin.ios
Post on 07-May-2015
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for code/slides...@benjamminstl
@rendrstl
Who Am i?• My name is Ben Bishop (Twitter:
@benjamminstl)
• I grew up in a small rural town of Indiana
• Went to Purdue University
• Now lives in Saint Louis
• Been independent for 4+ years
• Worked at an agency for 5 years, 1 year at TMG
FLash
Away3D, AIR, AS3, RobotLegs, FlexUnit
Native IOSXamarin.IOS, Facebook, Twitter, SQLite, C#, NUnit
$1200+60 hours
Native AndroidXamarin.Android, C#, Twitter, Facebook, SQLite
HybridPhoneGap, HTML, CSS3, jQuery, Backbone,
RequireJS
Mobile optimized WebjQuery, Backbone, CSS3, Ruby on Rails,
Moustache, JSON
WHAT IS A XAMARIN?
“The best damn mobile team,building the best damn mobile platform.”
What is Mono?• Mono 1.0 was released on June 30, 2004
• “The Mono runtime contains a code execution engine that translates ECMA CIL byte codes into native code and supports a number of processors: ARM, MIPS SPARC, PowerPC, S390 , x86, x86-64 and IA-64 for 64-bit modes.”
• Also has support for LLVM
• Runs on Linux, OSX, Windows, PS3, XBox 360, Wii
How does Mono Work?“Xamarin compiles your app to a native binary, not cross-compiled, and not interpreted.”
Code StructureBy only having to write core code once, more time
can be spent tuning the UI per platform.
cross platform strategies
must have componentsComponents that keep you from having to write
platform specific code.
xamarin.mobileA component that helps abstract your code for
location, photos, and contacts across all platforms.
Xamarin.SocialA component that helps abstract your code for
App.Net, Twitter, Facebook, and Flickr
xamarin.authMakes OAuth suck less.
DataRestSharp, SQLite.NET, and JSON.net help you
store and retrieve data for your app.
Frameworks
https://github.com/MvvmCross/MvvmCross
https://github.com/benbishop/MonkeyArms
interfaces are your friend
iOS Implementation
Have your platform specific views implementthe interface.
android implementation
ios implementation
android implementation
Mediator/View Model
Your Mediator or ViewModel will have a reference to the View
UI Logic
Mock your views
Moq lets you mock your viewsfor Unit Tests.
Unit Test UI Logic
Moq can raise events and verifyMethod invocation.
Test runner
Strings
https://gist.github.com/benbishop/6232751ResourceManager
detect locale
anatomy of an iOS app
info.plist
info.plist
important
Need to specify 640x1136 Launch Image soiOS knows your app supports tall UI
entitlements.plist
New for iOS7
New to iOS7
Main.CS
Entry point for your app
AppDelegate.cs
Creates the UI Window and attachesa ViewController.
ViewController
This is responsible for your screen.
ViewController Lifecycle
Setup/tear down
Great place to do any setup/tear down.
View
Creating a view
UIBUTTON
frame vs bounds
Frame A view's frame (CGRect) is the position of its rectangle in the superview's coordinate system. By default it starts at the top left.Bounds A view's bounds (CGRect) expresses a view rectangle in its own coordinate system.
extend views
class extensions
All UIView classes now have a CenterHorizontally method
Images for multi DPI
Text Input
view event handling
View Controller Types
UIViewController TabViewControllerUITableViewControll
erUINavigationControll
er
UITabViewController
Setting title/Icon
Header buttons
detecting ios7
UITableViews
UITableViews
UITableviewsource
UITableviewsource
UITableviewCell
uitableviewcell styles
UIPickerView
UIPickerView
uipickerview source
UIPICKERVIEWMODEL
UIPickerviewModel
UIPickerviewModel
UIPickerviewmodel
Dialog
http://docs.xamarin.com/guides/ios/user_interface/monotouch.dialog/
Rapid UI dev
JSON support
Attributes
Let’s decorate!!
parting thoughts
experiences• iOS sandbox is limited. You are at Apple’s mercy
• Provisioning is a pain
• iOS SDK is very prescriptive in regards to look and feel
• Most things are genuinely easier in iOS than Android. Music player, sharing to FB/Twitter, selecting photos...
• Few device configurations to work with.
Gracias
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