SabianAsyncTask-Swift-IOS

This a threading wrapper for handling background tasks in iOS by making use of Swift Threading APIs. This is inspired by my Android version of the same called SabianAsyncTask

How to use

enum MyError: Error {
    case runtimeError(String)
}

let task = SabianAsyncTask<Int>()

task.execute({
    //Do long running task here
    let amounts = [10,20,30]
    let sum = amounts.reduce(0, { x, y in
        x + y
    })
    if sum < 50 {
        throw MyError.runtimeError("Amounts must be greater or equal to 50")
    }
    return sum
}, onBefore: {
    //Do something on the main thread before the task runs e.g Show progress
    print("Task has begun")
},
onComplete: {  result in
    //Do some work on the main thread after the background task completes
    print(String(format: "Task has completed with result %@", result))
},
onError: { error in
    //Do some work on the main thread after the background task fails or throws an exception
    print(String(format: "Task has failed with result %@", error.localizedDescription))
})