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What’s the difference between await and async let? await 和 async let 有什么区别?
Swift lets us perform async operations using both await and async let, but although they both run some async code they don’t quite run the same: await wai...
What’s the difference between async let, tasks, and task groups? async let、tasks 和 task groups 之间有什么区别?
Swift’s async let, Task, and task groups all solve a similar problem: they allow us to create concurrency in our code so the system is able to run them efficiently. Beyo...
How to create and use task local values 如何创建和使用任务本地值
Swift lets us attach metadata to a task using task-local values, which are small pieces of information that any code inside a task can read.Swift 允许我们使用 task-local ...
What’s the difference between actors, classes, and structs? Actors、Classes和 Structs 之间有什么区别?
Swift provides four concrete nominal types for defining custom objects: actors, classes, structs, and enums. Each of these works a little differently from the others, but the first...
CardView
用于通过带有圆角布局和特定阴影效果来显示各种数据。CardView 可以用于创建 ListView 或 RecyclerView 中的条目布局。 创建CardView 1. CardView 条目布局 一个用于表示 RecyclerView 中单个条...
Collection 集合
Kotlin 的 Collections(集合)分为不可变集合和可变集合。不可变集合是只读集合,元素在创建之后不能被修改,常见的不可变集合方法有: List 中的 listOf()、ListOf<T>() Set 中的 setOf(...
Day 15 – 咖啡机
MENU = { 'espresso': { 'ingredients': { 'water': 50, 'coffee': 18, }, 'cost': 1.5, }, 'latte': { 'ingredients': { 'water': 200, 'milk': 150, 'coffee': 24, }, 'cost': 2.5, }, 'cappu...
模型配置
ModelConfiguration 是SwiftData 中用于确定数据存储方式和位置的组件。它指定了使用哪个 CloudKit 容器(如果有的话),以及是否启用保存功能。这些配置提供给模型容器,以决定其行为。通过合...







