cocoa 坑爹的委托

通过委托传递数值，搞了大半天，终于结束了这个恶魔，现在总结下：

view1.h

#import <Foundation/Foundation.h>

@protocol setAppControllerDelegate;

@interface view1 : NSObject {

//id _delegate;

PreferenceController *preferenceController;

NSObject<setAppControllerDelegate>*m_appControllerDelegate;

}

-(void)changeBgColor:(NSColor*)color;

- (IBAction)showPreferencePanel:(id)sender;

@end

 

view1.m

#import "AppController.h"

@implementation AppController  

-(void)changeBgColor:(NSColor*)color;

{

NSLog("通过委托传过来的颜色值为：%@",color);

}

@end

 

view2.h

#import <Foundation/Foundation.h>

@classAppController;

@protocol ChangeViewBgColorDelegate;

@interface PreferenceController : NSWindowController {

AppController*b;

id<ChangeViewBgColorDelegate>m_dChangeViewBgColorDelegate;

}

@property(nonatomic,retain) id m_dChangeViewBgColorDelegate;

@end

//代理申明

@protocol ChangeViewBgColorDelegate<NSObject>

-(void)changeBgColor:(NSColor*)color;

@end

view2.m

 

#import "PreferenceController.h"

#import "AppController.h"

@implementation PreferenceController

@synthesize m_dChangeViewBgColorDelegate;

- (id)init

{

if (![superinitWithWindowNibName:@"preferences"]) {

[self window];

b = [[AppController alloc] init];

self.m_dChangeViewBgColorDelegate = b;

//通过代理传递一个颜色值为blue的值

[m_dChangeViewBgColorDelegatechangeBgColor:blueColor];

} 

- (void)dealloc{

[b release];

[super dealloc];

}

@end