Question

我有一个名为controller的父视图： AskHome 和一个名为* record_audio *的子视图。 AskHome显示modally recod_audio，我实现了一个委托protocole，这样我就可以向父视图（AskHome）发送一个我在record_audio（子视图）中收到的NSNumber变量，但是根本没有调用委托方法： / p>

所以chidView首先

* record_audio.h *

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

#import <CoreAudio/CoreAudioTypes.h>

@protocol sendbackQuestionIdDelegate <NSObject>
@required
- (void)getIdDelegate:(NSNumber *)theQstId;
@end

@interface record_audio : UIViewController <AVAudioRecorderDelegate> {
//my stuff here
//......
id <sendbackQuestionIdDelegate> delegate;
}

@end

* record_audio.m *

#import "record_audio.h"
@implementation record_audio
@synthesize actSpinner, btnStart, btnPlay, btnCancel, btnValidate, delegate;

/* I do some stuff, upload the sound etc....
....
....
*/

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data 
{
//i call the delgate, theAnswer is the string i received from the server as a response
[delegate getIdDelegate:(NSNumber *)[theAnswer intValue]];
}

-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    //just dismiss this child view
    [self.parentViewController dismissModalViewControllerAnimated:YES]; 
}

父视图：

AskHome.h

#import <UIKit/UIKit.h>
#import "record_audio.h"

@interface AskHome : UIViewController <sendbackQuestionIdDelegate>
{
//stuff here
}
//other stuff here
@end

AskHome.m

#import "AskHome.h"
#import "UIImage+Resize.h"
#import "record_audio.h"

@implementation AskHome

- (void)getIdDelegate:(NSNumber *)theQstId
{
    NSLog(@"- ========= === <<<<<<   The delegate method was called >>>>>>>>>> - ========= ===  ");
    questionId = theQstId;

}

在控制台中我没有上面的NSLog，这意味着我的代表没有被调用，为什么？有人有想法吗？谢谢你们：）

Answer 1

你在哪里设置record_audio的代表？这可能是它没有设定的问题。（调试思考并确保委托是有效对象）

将代理方法称为“getWhatever”也不是最好的做法。您的设计模式可能存在缺陷，可能最适合单身人士。

ChildView不会调用我的委托方法！

1 个答案: