uiwebview - Change iOS components value dynamically (Generic Programming) -

to make generic code, need dispatch value component, whatever type of component (uislider,uitextfield,uiwebview etc ...)

problem : sometimes,uicontrol manage object type (nsstring * uitextfield), , primitive type (float uislider).

my dispatcher class dispatch value component knows : * setter use set value component (example : @selector(settext:) foruitextfield) * value set

it uses kvo/kvc , can manipulate (id) type (so objects type because id can't hide primitive type).

how dispatch float value uislider generic ? way achieve create category onuislider manages object type , inherit uislider override setvalue:animated , "value" uses object type setter (setobjectvalue: , "objectvalue") :

uislider+dataobjet.h :

@interface uislider (dataobject)  @property (nonatomic, strong) nsnumber *objectvalue;  @end   @interface mfslider : uislider  @end 

uislider+dataobject.m :

#import "uislider+dataobject.h" #import <objc/runtime.h>  static void * objectvalueidentifier = &objectvalueidentifier;  @implementation uislider (dataobject)  -(void)setobjectvalue:(nsnumber *)value{     objc_setassociatedobject(self, &objectvalueidentifier, value,  objc_association_retain_nonatomic); }  -(nsnumber *)objectvalue {     return objc_getassociatedobject(self, &objectvalueidentifier); }  @end  @implementation mfslider  -(void)setvalue:(float)value animated:(bool) animated{     [super setvalue:value animated:animated];     [self setobjectvalue:@(value)]; }  -(float)value {     return [[self objectvalue] floatvalue]; }  @end 

it works, won't inheritsuislider allow users use basicuislider insteadmfslider in storyboards... , can't override basic implementation ofuislider methods in category (without looping ...)

any idea ? thx