objective c - Block as property and accessing Class instances variables -

i want create dynamic class has property block. want make block function able access class instance variables , properties.

here code doubt:

/* myclass interface */ @interface myclass:nsobject @property (nonatomic, strong) nsstring *variable; @property (nonatomic, assign) void (^updatefunction)(); @end    /* myclass implementation */ @implementation myclass  -(void)update{      //perform block function code     self.updatefunction(); } @end    /* myclass usage*/ myclass *myclass = [[myclass alloc]init]; myclass.variable = @"variable value"; myclass.updatefunction = ^{     //here doubt...    //how can access myclass.variable , sure when block    //will called didn't bad access?  } 

so previous code doubt is: how access instance variables object directly block has been stored property of object itself.

your block function should have argument instance:

@property (nonatomic, assign) void (^updatefunction)(myclass *obj); 

then call block:

self.updatefunction(self); 

so can you:

myclass.variable = @"variable value"; myclass.updatefunction = ^(myclass *obj) {    nslog(@"%@", obj.variable); }; [myclass update];