How to convert a Future in flutter to a Stream
0
I have a function that returns a Future of the type duration.
Future loadur(TimerService timerservice) async
var dur = Duration.zero;
dur = await timerservice.currentDuration();
return dur;
The future takes duration from a timerservice which updates itself to run a timer.Now i want the future to be converted to a stream so i can show it in a StreamBuilder(Futurebuilder doesn't update the timer).
Any way to convert the future to a stream of duration will be helpful.
android dart 
flutter asked Nov 14 '18 at 5:52
ganraj kelkarganraj kelkar
102
add a comment |
0
I have a function that returns a Future of the type duration.
Future loadur(TimerService timerservice) async
var dur = Duration.zero;
dur = await timerservice.currentDuration();
return dur;
The future takes duration from a timerservice which updates itself to run a timer.Now i want the future to be converted to a stream so i can show it in a StreamBuilder(Futurebuilder doesn't update the timer).
Any way to convert the future to a stream of duration will be helpful.
android dart flutter asked Nov 14 '18 at 5:52
ganraj kelkarganraj kelkar
102
1
Can't make any sense of the question. Can you please explain what the actual problem is you try to solve?
– Günter Zöchbauer
Nov 14 '18 at 5:57
I have a timerservice which contains a timer/stopwatch,the above function returns the time from the timerservice as a future.As it is a timer it updates every second or so.Now i want to display the duration which i can using a futurebuilder but it wont update every second.So i need to use a stream builder,but the duration is a future
– ganraj kelkar
Nov 14 '18 at 6:06
Future has .asStream() Method to Convert to Stream.
– anmol.majhail
Nov 14 '18 at 6:13
A Future converted to a stream would still only emit a single event. Perhaps you want to use the duration to create aStream.periodic(duration)
– Günter Zöchbauer
Nov 14 '18 at 6:15
add a comment |
0
0
0
I have a function that returns a Future of the type duration.
Future loadur(TimerService timerservice) async
var dur = Duration.zero;
dur = await timerservice.currentDuration();
return dur;
The future takes duration from a timerservice which updates itself to run a timer.Now i want the future to be converted to a stream so i can show it in a StreamBuilder(Futurebuilder doesn't update the timer).
Any way to convert the future to a stream of duration will be helpful.
android dart flutter asked Nov 14 '18 at 5:52
ganraj kelkarganraj kelkar
102
I have a function that returns a Future of the type duration.
Future loadur(TimerService timerservice) async
var dur = Duration.zero;
dur = await timerservice.currentDuration();
return dur;
The future takes duration from a timerservice which updates itself to run a timer.Now i want the future to be converted to a stream so i can show it in a StreamBuilder(Futurebuilder doesn't update the timer).
Any way to convert the future to a stream of duration will be helpful.
android dart flutter android dart flutter asked Nov 14 '18 at 5:52
ganraj kelkarganraj kelkar
102
asked Nov 14 '18 at 5:52
ganraj kelkarganraj kelkar
102
asked Nov 14 '18 at 5:52
ganraj kelkarganraj kelkar
102
asked Nov 14 '18 at 5:52
ganraj kelkarganraj kelkar
102
asked Nov 14 '18 at 5:52
ganraj kelkarganraj kelkar
102
102
1
Can't make any sense of the question. Can you please explain what the actual problem is you try to solve?
– Günter Zöchbauer
Nov 14 '18 at 5:57
I have a timerservice which contains a timer/stopwatch,the above function returns the time from the timerservice as a future.As it is a timer it updates every second or so.Now i want to display the duration which i can using a futurebuilder but it wont update every second.So i need to use a stream builder,but the duration is a future
– ganraj kelkar
Nov 14 '18 at 6:06
Future has .asStream() Method to Convert to Stream.
– anmol.majhail
Nov 14 '18 at 6:13
A Future converted to a stream would still only emit a single event. Perhaps you want to use the duration to create aStream.periodic(duration)
– Günter Zöchbauer
Nov 14 '18 at 6:15
add a comment |
1
Can't make any sense of the question. Can you please explain what the actual problem is you try to solve?
– Günter Zöchbauer
Nov 14 '18 at 5:57
I have a timerservice which contains a timer/stopwatch,the above function returns the time from the timerservice as a future.As it is a timer it updates every second or so.Now i want to display the duration which i can using a futurebuilder but it wont update every second.So i need to use a stream builder,but the duration is a future
– ganraj kelkar
Nov 14 '18 at 6:06
Future has .asStream() Method to Convert to Stream.
– anmol.majhail
Nov 14 '18 at 6:13
A Future converted to a stream would still only emit a single event. Perhaps you want to use the duration to create aStream.periodic(duration)
– Günter Zöchbauer
Nov 14 '18 at 6:15
1
1
Can't make any sense of the question. Can you please explain what the actual problem is you try to solve?
– Günter Zöchbauer
Nov 14 '18 at 5:57
Can't make any sense of the question. Can you please explain what the actual problem is you try to solve?
– Günter Zöchbauer
Nov 14 '18 at 5:57
I have a timerservice which contains a timer/stopwatch,the above function returns the time from the timerservice as a future.As it is a timer it updates every second or so.Now i want to display the duration which i can using a futurebuilder but it wont update every second.So i need to use a stream builder,but the duration is a future
– ganraj kelkar
Nov 14 '18 at 6:06
I have a timerservice which contains a timer/stopwatch,the above function returns the time from the timerservice as a future.As it is a timer it updates every second or so.Now i want to display the duration which i can using a futurebuilder but it wont update every second.So i need to use a stream builder,but the duration is a future
– ganraj kelkar
Nov 14 '18 at 6:06
Future has .asStream() Method to Convert to Stream.
– anmol.majhail
Nov 14 '18 at 6:13
Future has .asStream() Method to Convert to Stream.
– anmol.majhail
Nov 14 '18 at 6:13
A Future converted to a stream would still only emit a single event. Perhaps you want to use the duration to create a
Stream.periodic(duration)– Günter Zöchbauer
Nov 14 '18 at 6:15
A Future converted to a stream would still only emit a single event. Perhaps you want to use the duration to create a
Stream.periodic(duration)– Günter Zöchbauer
Nov 14 '18 at 6:15
add a comment |
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1
Can't make any sense of the question. Can you please explain what the actual problem is you try to solve?
– Günter Zöchbauer
Nov 14 '18 at 5:57
I have a timerservice which contains a timer/stopwatch,the above function returns the time from the timerservice as a future.As it is a timer it updates every second or so.Now i want to display the duration which i can using a futurebuilder but it wont update every second.So i need to use a stream builder,but the duration is a future
– ganraj kelkar
Nov 14 '18 at 6:06
Future has .asStream() Method to Convert to Stream.
– anmol.majhail
Nov 14 '18 at 6:13
A Future converted to a stream would still only emit a single event. Perhaps you want to use the duration to create a
Stream.periodic(duration)– Günter Zöchbauer
Nov 14 '18 at 6:15