ios - Set category class as delegate in parent class -


i have uiviewcontroller named editnoteviewcontroller_ipad , have create category class editnoteviewcontroller_ipad (operation).

this category contain delegate methods.

my setdelegate method in editnoteviewcontroller_ipad can not transfer category class.

now getting warning on setdelegate method follow:

sending 'editnoteviewcontroller_ipad *const __strong' parameter of incompatible type 'id<znvideoviewdelegate>'

line show warning in editnoteviewcontroller_ipad :

[video setdelegate:self];

how can remove warning?

my project working fine. want remove warning.

you need declare editnoteviewcontroller_ipad class conforms znvideoviewdelegate protocol. @interface in header should similar this:

@interface editnoteviewcontroller_ipad : uiviewcontroller <znvideoviewdelegate> {...}                                                      ^^^^^^^^^^^^^^^^^^^

edit: if implemented protocol in category, need import category's header in .m file set delegate, compiler knows class conforms protocol.


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