swift2 - Swift 2 Syntax Error -

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so, tells me:

init() deprecated in ios 9.0: use -initwithconcurrencytype: instead

var managedobjectcontext = nsmanagedobjectcontext()

that's code. gave error too, how should change it?

since ios 9 nsmanagedobjectcontext() deprecated , recommended create nsmanagedobjectcontext with, hinted, -initwithconcurrencytype: instead.

usage when creating nsmanagedobjectcontext in ios 9:

let managedobjectcontext = nsmanagedobjectcontext(concurrencytype: .mainqueueconcurrencytype)

with -initwithconcurrencytype:, need specify concurrency type.

the above example creates 1 .mainqueueconcurrencytype, 1 of 3 1 can specify:

case confinementconcurrencytype

specifies context use thread confinement pattern.

case privatequeueconcurrencytype

specifies context associated private dispatch queue.

case mainqueueconcurrencytype

specifies context associated main queue.

with deprecated nsmanagedobjectcontext(), if memory serves, default of type .confinementconcurrencyqueue.

to stay on topic, if dealing ui elements (i.e., updating textlabel thereby), use .mainqueueconcurrencyqueue.


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