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@mattyellen
Created July 26, 2020 19:36
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Allows the use of async/await (instead of yield) with any Unity AsyncOperation
public static class ExtensionMethods
{
public static TaskAwaiter GetAwaiter(this AsyncOperation asyncOp)
{
var tcs = new TaskCompletionSource<object>();
asyncOp.completed += obj => { tcs.SetResult(null); };
return ((Task)tcs.Task).GetAwaiter();
}
}
/* Example:
var getRequest = UnityWebRequest.Get("http://www.google.com");
await getRequest.SendWebRequest();
var result = getRequest.downloadHandler.text;
*/
@stetttho
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this works fine in addition to UniTask, thank you! you should add these imports on top though:
using System.Runtime.CompilerServices; using System.Threading.Tasks; using UnityEngine;

@thomrobin
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Thanks! Don't forget libraries since there's more than one AsyncOperation

using System.Runtime.CompilerServices;
using System.Threading.Tasks;
using UnityEngine;

@VinzzF
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VinzzF commented Mar 31, 2022

This does not seem work with UnityWebRequest when the request fails (i.e. AsyncOperation.isDone is set but AsyncOperation.completed is not invoked). In this case it makes the Task and awaiting routines hang indefinitely.

This probably can't be solved without continuously checking the AsyncOperation.completed flag somehow?

@UnitTHK
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UnitTHK commented Oct 26, 2023

Thank you a lot for this! I've been having a headache with making Untiy wait for a web request to complete before doing something in a function. This helps solve it, again thanks!

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