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# android
h
henrikhorbovyi
09/01/2019, 5:07 PMHey folks. I'm trying to use
Coroutines Flowg
gildor
09/02/2019, 2:22 AMCould you show the declaration that you use
h
henrikhorbovyi
09/03/2019, 12:34 AMimage.png
g
gildor
09/03/2019, 1:01 AMRemove suspend modifier, you don't need it with flow
Room sees suspend modifier and it mark that you just return value from request, not subscribe on value changes. So it tries to return result of this select and convert it to Flow, but you don't have such adapter and you don't need it
h
henrikhorbovyi
09/03/2019, 1:10 AMThank you. I'm gonna try
@gildor It worked...
I open the implementation of
Flow.collectsuspendg
gildor
09/03/2019, 1:22 AMEssentially your declaration is the same as:
Single<Observable<HistoryResult>>
Flow collect for sure suspend
h
henrikhorbovyi
09/03/2019, 1:23 AMso I kinda get it why I don't need to mark the fun as suspend
g
gildor
09/03/2019, 1:23 AMBecause you do not collect anything
Room just create Flow for you
that you can collect where you want
h
henrikhorbovyi
09/03/2019, 1:23 AMaaah
I got it
So...
Flowg
gildor
09/03/2019, 1:25 AMNo
h
henrikhorbovyi
09/03/2019, 1:25 AMCause I just could use a list of data normal
g
gildor
09/03/2019, 1:25 AMFlow is the same as LiveData or Observable
h
henrikhorbovyi
09/03/2019, 1:25 AMand observe is
g
gildor
09/03/2019, 1:25 AMWhen you use flow you getting current result and subscribe on database updates
h
henrikhorbovyi
09/03/2019, 1:27 AMGot it
So when I want to just have entire
list<data>suspendfunlist<data>Flowg
gildor
09/03/2019, 1:28 AMyes
first is one-time operation, second subscribe on changes of requested data until coroutine where you do
collect👍 1
h
henrikhorbovyi
09/03/2019, 1:34 AMCool... Thank you mate
With that, I just realized that I don't need
Flow👍 1