返回Kotlin协程中生成的值

Question

我试图返回从coroutine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(不是很安全!):

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,但这个问题有更优雅的解决方案吗？

提前致谢.

Answer 1

你可以做

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

阻止,直到结果可用.