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	<id>https://homeostasis.scs.carleton.ca/wiki/index.php?action=history&amp;feed=atom&amp;title=Mobile_App_Development_2021W_Lecture_22</id>
	<title>Mobile App Development 2021W Lecture 22 - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://homeostasis.scs.carleton.ca/wiki/index.php?action=history&amp;feed=atom&amp;title=Mobile_App_Development_2021W_Lecture_22"/>
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	<updated>2026-04-06T04:00:40Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://homeostasis.scs.carleton.ca/wiki/index.php?title=Mobile_App_Development_2021W_Lecture_22&amp;diff=23151&amp;oldid=prev</id>
		<title>Soma: Created page with &quot;==Video==  The video from the lecture given on April 5, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec22-20210405.m4v is now available]....&quot;</title>
		<link rel="alternate" type="text/html" href="https://homeostasis.scs.carleton.ca/wiki/index.php?title=Mobile_App_Development_2021W_Lecture_22&amp;diff=23151&amp;oldid=prev"/>
		<updated>2021-04-05T19:23:19Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;==Video==  The video from the lecture given on April 5, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec22-20210405.m4v is now available]....&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Video==&lt;br /&gt;
&lt;br /&gt;
The video from the lecture given on April 5, 2021 [https://homeostasis.scs.carleton.ca/~soma/mad-2021w/lectures/comp1601-2021w-lec22-20210405.m4v is now available].&lt;br /&gt;
&lt;br /&gt;
==Notes==&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Lecture 22&lt;br /&gt;
----------&lt;br /&gt;
&lt;br /&gt;
Storyboard apps for iOS are based on a &amp;quot;model view controller&amp;quot; pattern&lt;br /&gt;
 - interface is the view and the controller (output vs input)&lt;br /&gt;
 - model is internal state&lt;br /&gt;
 - I find MVC to be problematic in many cases because of the tight&lt;br /&gt;
   coupling between the view and the controller&lt;br /&gt;
&lt;br /&gt;
Software design patterns are descriptive, not prescriptive&lt;br /&gt;
 - you can see the patterns when you look at code&lt;br /&gt;
 - but when you build code, they generally aren&amp;#039;t that helpful&lt;br /&gt;
 - I think they should be learned bottom up, not top down&lt;br /&gt;
&lt;br /&gt;
UIKit is the framework underlying Storyboard iOS apps&lt;br /&gt;
 - as opposed to AppKit (which is for MacOS apps)&lt;br /&gt;
&lt;br /&gt;
iOS           Android&lt;br /&gt;
&lt;br /&gt;
IBOutlet &amp;lt;--&amp;gt; FindViewByID&lt;br /&gt;
IBAction &amp;lt;--&amp;gt; onClick, etc&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;/div&gt;</summary>
		<author><name>Soma</name></author>
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