objective c - Network handling in ios Programming -

i new ios programming.

now have model 'activity'. activity needs send , receive data server using afnetworking library.

there server manager dealing networking methods.

my idea create server manager instance when initialise each activity object, , receive data. therefore when need table of activities, have call instance repeatedly when create each activity

    + (servermanager*) instance     {         static servermanager *instance = nil;         static dispatch_once_t oncetoken = 0;         dispatch_once(&oncetoken, ^{             instance = [[servermanager alloc]init];         });         return instance;     } 

it makes sense valid or appropriate repeatedly create server manager instance?

or better call instance while loading ui , assigning every data in viewdidload?

thank you

there multiple ways want do, , depends on situation , amount of data want load. way is: rather extend activity class servermanager class, network methods available in servermanager automatically available activity class.

so way, each time create new activity class, has capability go out , data you.

again, subjective , way it.

hope helps.