protocol problem

i'm receiving error "cannot find protocol declaration checkmarkdelegate" in contentaviewcontroller.h. why this?

quiztableviewcontroller.h

code:

#import <uikit/uikit.h>  #import "contentaviewcontroller.h"    @protocol checkmarkdelegate <nsobject>  @required  - (void) processsuccessful: (bool)success;    @end    @interface quiztableviewcontroller : uitableviewcontroller  {      id <checkmarkdelegate> delegate;  }    @property (retain) id delegate;    @end

quiztableviewcontroller.m

code:

#import "quiztableviewcontroller.h"    @implementation quiztableviewcontroller  @synthesize delegate;    - (void) processcomplete  {      [self.delegate processsuccessful:yes];  }    - (void)viewdidload  {      [super viewdidload];      [self.tableview reloaddata];  }

contentaviewcontroller.h

code:

#import <uikit/uikit.h>  #import "quiztableviewcontroller.h"    @interface contentaviewcontroller : uiviewcontroller <checkmarkdelegate>    @end

contentaviewcontroller.m

code:

#import "contentaviewcontroller.h"    @implementation contentaviewcontroller    - (void) processsuccessful: (bool) success  {      nslog(@"process succesful");  }    - (ibaction)ok:(id)sender   {      if ([answeraval.text isequaltostring:@"correct!"])      {          [self processsuccessful:yes];      } else {                [self dismissmodalviewcontrolleranimated:yes];      }  }

 

because quiztableviewcontroller.h importing contentaviewcontroller.h.


think happens when compiler comes compiling quiztableviewcontroller.m.

first thing encounters #import "quiztableviewcontroller.h". basically, line replaced contents of quiztableviewcontroller.h , compilation continues first line of quiztableviewcontroller.h.

second thing happens uikit/kit.h imported in same way.

third thing happens #import "contentaviewcontroller.h" again in same way.

we're @ first line of "contentaviewcontroller.h. #import <uikit/uikit.h> nothing because uikit/uikit.h has been imported.

#import "quiztableviewcontroller.h" ignored because quiztableviewcontroller.h has (is being) imported.

compiler @interface contentaviewcontroller line in quiztableviewcontroller.h references checkmarkdelegate, can see compiler has never seen @protocol checkmarkdelegate @ point. complains.


you've posted, there's not need quiztableviewcontroller.h import contentaviewcontroller.h, take out.

 

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