This techique illustrates a mid-level technique: impelmenting custom Core Graphics drawing in a UIView. Often a custom effect in a View can be implemented by adding subviews and positioning them with constraints. But other times, you just need to take over and draw what you need. In those cases--CoreGraphics to the …

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The most common approach to displaying images in an iOS application is to include images in asset catalogs compiled into and shipped with the app. For images that are provided at design time and never change, this is nearly always the best approach. There are some scenarios where bundling images isn't possible or …

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