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(Python) Awaitable에 대해
await 키워드를 통해서 실행이 완료되기 전에 다른 작업으로 전환이 가능한 동작을 모두 대기가능(awaitable)하다고 한다. 대기 가능한 객체 타입에는 코루틴(asycio.corutine), Task, Future가 있다.
코루틴
이 글에서 말하는 코루틴은 yield를 사용하는 전통적 의미의 코루틴이 아닌 asycio 라이브러리 내에 정의된 비동기 코루틴을 의미하며, 이는 async def 키워드를 사용하여 정의한 함수(코루틴 함수)가 리턴하는 객체이다. 아래 예제에서 #1의 코드는 실질적으로 아무일도 하지 않는데, nested()를 실행만 하면 코루틴 객체를 생성만 하고 실행(스케줄링)을 하지 않기 때문이다.
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A MVVM-styled Service for my Await-able Custom Input Dialogs (XFCustomInputAlertDialog)
So a lot of folks asked me regarding my previous post, An Await-able Transparent, Custom, Popup Input Dialog in Xamarin.Forms! 😉 how they could implement this awesomeness in a MVVM-friendly manner in Xamarin.Forms, instead of having to deal with dirty code-behind ugliness.
Frankly I did the above original implementation in a MVVM-manner, given myself being a MVVM-practitioner, but since there are…
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An Await-able Transparent, Custom, Popup Input Dialog in Xamarin.Forms! ;)
An Await-able Transparent, Custom, Popup Input Dialog in Xamarin.Forms! ;)
Imagine you wanted to prompt your user with a popup alert dialog (which is also transparent, because its cool! lol) 😉 asking them to enter some value and you want to await the whole task (make it awaitable) while you’re at it, so the execution will halt until the user enter the value, and then retrieve the user entered value to the point of origin? 😀
And just to add some sugar to it, may be you…
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