> But as standalone coroutines are deprecated w...
# coroutinesg
gildor
10/09/2018, 5:21 AMBut as standalone coroutines are deprecated what other alternatives do we have apart from GlobalScopeWhat do you mean? GlobalScope is direct successor of old standalone coroutine builders and provides the same lifecycle. But usually you don’t need it, use CoroutineScope everywhere where it’s possible to do
has examples aboutIt’s just for simplicity of examples, docs has actually a lot of different examples, not only runBlocking or GlobalScopeandrunBlocking{ }onlyGlobalScope.launch( )
gildor
10/09/2018, 6:51 AMalternatives for CoroutineContext builders? What do you mean?
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Rohit Surwase
10/09/2018, 6:53 AMLike as GlobalScope is application wide, what if I want to create a Coroutines context specifically for a dialog.
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gildor
10/09/2018, 6:53 AMOkay, first of all it’s not a Coroutine context
gildor
10/09/2018, 6:54 AMCoroutineContext is like metadata for coroutine used to provide configs to coroutines
gildor
10/09/2018, 6:55 AMIf you have some custom lifecycle you have 2 options:
1. Create CoroutineScope just for this lifecycle and run coroutine there + UPD You should of course do not forget to cancel scope when your dialog cancelled
2. Create a new coroutine in parent level lifecycle but cancel it manually (start coroutine, get Job instance and cancel this job on dialog cancel)
gildor
10/09/2018, 6:56 AMcase with custom CoroutineScope make sense for me if you run multiple coroutines there, otherwise one single Job for one single coroutine looks fine for me
gildor
10/09/2018, 6:57 AMIf you talking about Android you shouldn’t use GlobalScope (only if you run something on Application level), only scopes related to Activity/Fragment lifecycle
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Rohit Surwase
10/09/2018, 7:00 AMThanks so much, all this information is so useful for me.
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gildor
10/09/2018, 7:02 AMThere is a section about lifecycle in UI guide:
https://github.com/Kotlin/kotlinx.coroutines/blob/master/ui/coroutines-guide-ui.md#structured-concurrency-lifecycle-and-coroutine-parent-child-hierarchy
gildor
10/09/2018, 7:03 AMalso check this blog post
https://medium.com/@elizarov/structured-concurrency-722d765aa952
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