IOS Multiple Unknown parameters

-(void) Setgradientcolor: (Uicolor *) Begincolor Transitioncolor: (Uicolor *) Transitioncolor,... Ns_requires_nil_termination;

Ns_requires_nil_termination, for compile-time non- NIL End Checks

-(void) Setgradientcolor: (Uicolor *) Begincolor Transitioncolor: (Uicolor *) Transitioncolor, ... {

[Self.gradientcolors AddObject: (ID) begincolor.cgcolor];

// Define a pointer to an optional parameter list

Va_list args;

// Gets the address of the first optional parameter, at which point the argument list pointer points to the first optional parameter in the function argument list

Va_start (args, transitioncolor);

if (Transitioncolor)

{

[Self.gradientcolors AddObject: (ID) transitioncolor.cgcolor];

// iterate through the parameters in the parameter list and point the argument list pointer to the next parameter in the argument list

Uicolor *nextarg;

while ((Nextarg = Va_arg (args, Uicolor *)))

{

[Self.gradientcolors AddObject: (ID) nextarg.cgcolor];

}

}

// end get of variable parameter ( empty parameter list )

Va_end (args);

}

[Drawcircleview setgradientcolor:[uicolor Purplecolor] transitioncolor:[uicolor redcolor],[uicolor BlueColor], nil];

IOS Multiple Unknown parameters