Using a BOOL property

Question

Apple recommends to declare a BOOL property this way    property  nonatomic  assign  getter isWorking  BOOL working    As I m using Objective-C 2 0 properties and dot notation  I access this property using self working  I know that I could also use  self isWorking      but I don t have to   So  as I m using dot notation everywhere  why should I define an extra property  Would it be okay to simply write   property  nonatomic  assign  BOOL working    Or do I have any benefits writing getter isWorking in my case  usage of dot notation    Thanks

User · Answer

There s no benefit to using properties with primitive types    property is used with heap allocated NSObjects like NSString   NSNumber   UIButton   and etc  because memory managed accessors are created for free   When you create a BOOL  the value is always allocated on the stack and does not require any special accessors to prevent memory leakage   isWorking is simply the popular way of expressing the state of a boolean value   In another OO language you would make a variable private bool working  and two accessors  SetWorking for the setter and IsWorking for the accessor

User · Answer

Apple recommends for stylistic purposes If you write this code      property  nonatomic assign  BOOL working    Then you can not use  object isWorking   It will show an error  But if you use below code means    property  assign getter isWorking  BOOL working    So you can use  object isWorking

User · Answer

Apple simply recommends declaring an isX getter for stylistic purposes  It doesn t matter whether you customize the getter name or not  as long as you use the dot notation or message notation with the correct name  If you re going to use the dot notation it makes no difference  you still access it by the property name    property  nonatomic  assign  BOOL working    self setWorking YES              Or self working   YES  BOOL working    self working      Or   self working    Or   property  nonatomic  assign  getter isWorking  BOOL working    self setWorking YES                Or self working   YES   same as above BOOL working    self isWorking      Or   self working   also same as above

[objective-c] Using a BOOL property

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