Custom modifiers encapsulate multiple modifiers in a single structure, and we can apply them later to the views. struct ImageModifier: ViewModifier { func body(content: Content) -> some View { content .scaledToFill() .shadow(color: .black, radius: 5, x: 5, y: 5) .cornerRadius(10) } } The struct must conform to the ViewModifier protocol…

Apple introduce User-defined “Dynamic Member Lookup” Types. The new @dynamicMemberLookup attribute provides dot syntax which are resolved at runtime That feature helps swift to develop as scripting language. One of the powerful feature of swift is subscripts. Subscripts to access elements within various collections, like arrays and dictionaries. Adding subscripts…

Using Combine for making a API Calls Using Combine with API calls is very convenient due to operators and error handling methods from combine Lets us look at a example: Example URL: https://jsonplaceholder.typicode.com/posts" Since URL session has support for combine, We can directly use it as a publisher which will emit the output and can be subscribed…

Published Keyword Publishing a property with the @Published attribute creates a publisher of this type. You access the publisher with the $ operator @Published var heartRate: Double When the property changes, publishing occurs in the property’s willSet block, meaning subscribers receive the new value before it’s actually set on the…

Next we will look at Subjects and Future in Combine A subject is a publisher that you can use to “inject” values into a stream, by calling its send(_:) method. This can be useful for adapting existing imperative code to the Combine model. Combine ships with two subject implementations: PassthroughSubject…

In Apple’s words: “The Combine framework provides a declarative approach for how your app processes events. Rather than potentially implementing multiple delegate callbacks or completion handler closures, you can create a single processing chain for a given event source. …