How to return Deferred with the instant result?
I have a conditional statement which should return Deferred result in both cases, but I don't know how to manually create Deferred object with predefined result. Here's code snapshot:
val deferredResult = if (condition)
callSuspendFunction(params)
else
deferred???
callSuspendFunction returns the result of async operation. Although I can write something like coroutineScope async result instead of deferred???, but it looks really not what it should be.
kotlin coroutine
asked Nov 13 '18 at 3:28
PrayticPraytic
334314
add a comment |
I have a conditional statement which should return Deferred result in both cases, but I don't know how to manually create Deferred object with predefined result. Here's code snapshot:
val deferredResult = if (condition)
callSuspendFunction(params)
else
deferred???
callSuspendFunction returns the result of async operation. Although I can write something like coroutineScope async result instead of deferred???, but it looks really not what it should be.
kotlin coroutine
asked Nov 13 '18 at 3:28
PrayticPraytic
334314
add a comment |
I have a conditional statement which should return Deferred result in both cases, but I don't know how to manually create Deferred object with predefined result. Here's code snapshot:
val deferredResult = if (condition)
callSuspendFunction(params)
else
deferred???
callSuspendFunction returns the result of async operation. Although I can write something like coroutineScope async result instead of deferred???, but it looks really not what it should be.
kotlin coroutine
asked Nov 13 '18 at 3:28
PrayticPraytic
334314
I have a conditional statement which should return Deferred result in both cases, but I don't know how to manually create Deferred object with predefined result. Here's code snapshot:
val deferredResult = if (condition)
callSuspendFunction(params)
else
deferred???
callSuspendFunction returns the result of async operation. Although I can write something like coroutineScope async result instead of deferred???, but it looks really not what it should be.
kotlin coroutine
kotlin coroutine
asked Nov 13 '18 at 3:28
PrayticPraytic
334314
asked Nov 13 '18 at 3:28
PrayticPraytic
334314
edited Nov 13 '18 at 5:39
Praytic
asked Nov 13 '18 at 3:28
PrayticPraytic
334314
asked Nov 13 '18 at 3:28
PrayticPraytic
334314
asked Nov 13 '18 at 3:28
PrayticPraytic
334314
334314
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true)
callSuspendFunction(params)
else
CompletableDeferred(10)
answered Nov 13 '18 at 5:47
ReneRene
1,77126
add a comment |
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition)
3
else
true
answered Nov 13 '18 at 3:54
vishal jangidvishal jangid
1,926818
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true)
callSuspendFunction(params)
else
CompletableDeferred(10)
answered Nov 13 '18 at 5:47
ReneRene
1,77126
add a comment |
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true)
callSuspendFunction(params)
else
CompletableDeferred(10)
answered Nov 13 '18 at 5:47
ReneRene
1,77126
add a comment |
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true)
callSuspendFunction(params)
else
CompletableDeferred(10)
answered Nov 13 '18 at 5:47
ReneRene
1,77126
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true)
callSuspendFunction(params)
else
CompletableDeferred(10)
answered Nov 13 '18 at 5:47
ReneRene
1,77126
answered Nov 13 '18 at 5:47
ReneRene
1,77126
answered Nov 13 '18 at 5:47
ReneRene
1,77126
answered Nov 13 '18 at 5:47
ReneRene
1,77126
1,77126
add a comment |
add a comment |
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition)
3
else
true
answered Nov 13 '18 at 3:54
vishal jangidvishal jangid
1,926818
add a comment |
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition)
3
else
true
answered Nov 13 '18 at 3:54
vishal jangidvishal jangid
1,926818
add a comment |
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition)
3
else
true
answered Nov 13 '18 at 3:54
vishal jangidvishal jangid
1,926818
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition)
3
else
true
answered Nov 13 '18 at 3:54
vishal jangidvishal jangid
1,926818
answered Nov 13 '18 at 3:54
vishal jangidvishal jangid
1,926818
answered Nov 13 '18 at 3:54
vishal jangidvishal jangid
1,926818
answered Nov 13 '18 at 3:54
vishal jangidvishal jangid
1,926818
1,926818
add a comment |
add a comment |
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