@MainActor is a global actor that uses the main queue for executing its work. In practice, this means methods or types marked with @MainActor can (for the most part)...

Any properties and methods that belong to an actor are isolated to that actor, but you can make external functions isolated to an actor if you want. This allows the funct...

Creating and using an actor in Swift takes two steps: create the type using actor rather than class or struct, then use await when accessing its ...

Swift’s actors are conceptually like classes that are safe to use in concurrent environments. This safety is made possible because Swift automatically ensures no two pieces of cod...

Swift’s actors allow us to share data in multiple parts of our app without causing problems with concurrency, because they automatically ensure two pieces of code cannot...

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...

Actor-isolated functions are reentrant, which means it's possible for one piece of work to begin before a previous piece of work completes. This opens the possibility of subtle bug...

When a thread pauses work on one actor to start work on another actor instead, we call it actor hopping, and it will happen any time one actor calls another.当线程暂停对一个 a...

Apple explicitly annotates many of its types as being @MainActor, including most UIKit types such as UIView and UIButton. However, for a while the Swift team da...

One common confusion with actors comes in deciding exactly where code runs, because just adding @MainActor and hoping for the best is rarely good enough.与 Actor 的一个常...