objective c - When to use strong or weak for properties -


i have table view iboutlet, , default xcode sets property strong rather weak. "recieved memory warning" message. tried change many properties strong weak, doesn't seem affect process , things work smoothly. should set outlets weak, or wrong?

and importantly, should set all properties nil in viewdidunload method, or iboutlets?

you should set strong properties nil in viewdidunload. weak properties automatically set nil if destination object deallocated.

iboutlet can set strong or weak based on requirement.

for warning issue facing can provide more details , code?

apart link provided josh, there lot of posts on related topic, below:

weak or strong iboutlet , other

objective-c declared @property attributes (nonatomic, copy, strong, weak)

good detailed explanation can found here:

http://www.raywenderlich.com/5677/beginning-arc-in-ios-5-part-1

apple docs on topic can found here: http://developer.apple.com/library/mac/#documentation/cocoa/conceptual/objectivec/chapters/ocproperties.html#//apple_ref/doc/uid/tp30001163-ch17-sw1


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