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	<title>timing &#8211; Frankis Website</title>
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	<link>https://fpposchmann.de</link>
	<description>Consulting &#38; Software</description>
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		<title>SwiftUI and the Problems of Timing</title>
		<link>https://fpposchmann.de/swiftui-and-the-problems-of-timing/</link>
					<comments>https://fpposchmann.de/swiftui-and-the-problems-of-timing/#respond</comments>
		
		<dc:creator><![CDATA[Frank-Peter Poschmann]]></dc:creator>
		<pubDate>Wed, 04 Jan 2023 10:02:48 +0000</pubDate>
				<category><![CDATA[Swift]]></category>
		<category><![CDATA[.onAppear]]></category>
		<category><![CDATA[delay]]></category>
		<category><![CDATA[focus]]></category>
		<category><![CDATA[SwiftUI]]></category>
		<category><![CDATA[timing]]></category>
		<guid isPermaLink="false">https://fpposchmann.de/?p=762</guid>

					<description><![CDATA[Well, SwiftUI is certainly a big improvement on building maintainable, robust and nice user interfaces on iOS and macOS compared to the old MVC architecture (Massive View Controller) and the NIB (Next Interface Builder). But it is mainly a declarative framework and from the application developer’s point of view its sometimes hard to anticipate what is really going on behind the scenes and especially when its going to happen. There are situations where the promised behaviour doesn’t take place and I’ve already struggled hours for hours to look for a workaround.

Especially the .onAppear modifier seems to be problematic. It looks as if the supplied closure will be executed too early sometimes and the statements inside do net have the desired effect.]]></description>
		
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