ios - Block isn't recognized unless it is defined in the same class -


i trying define instance variable block

i have 2 classes follows

@interface classa:nsobject  typedef void (^ablock)(void); @end   #import "classa.h" @interface classb :nsobject  -(void)somemethodwithablock:(ablock)block;   @end

in class b "ablock" type not recognized unless written right above "somemethodwithablock"

how can fix it?

you want this?

typedef void (^blocka)(void);  #import <foundation/foundation.h>  @interface classa : nsobject {     blocka classablocka; }  @end  @interface classb : nsobject {     blocka classbblocka; }  @end

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