kotlin - 返回 Kotlin 协程中生成的值

Question

我正在尝试返回从协程生成的值

fun nonSuspending (): MyType {
    launch(CommonPool) {
        suspendingFunctionThatReturnsMyValue()
    }
    //Do something to get the value out of coroutine context
    return somehowGetMyValue
}

我想出了以下解决方案(不太安全!):

fun nonSuspending (): MyType {
    val deferred = async(CommonPool) {
        suspendingFunctionThatReturnsMyValue()
    }
    while (deferred.isActive) Thread.sleep(1)
    return deferred.getCompleted()
}

我也考虑过使用事件总线，但是有没有更优雅的解决方案来解决这个问题？

提前致谢。

Answer 1

你可以做到

val result = runBlocking(CommonPool) {
    suspendingFunctionThatReturnsMyValue()
}

阻塞直到结果可用。