대리자의 메서드가 한 클래스에서 호출되지만 동일한 구조를 가진 다른 클래스에서는 호출되지 않습니다.

Question

수업이 세 개 있어요. AlertDetailsVC, UtilizationDetailsVC 그리고 SelectIOVC.

UtilizationDetailsVC 본질적으로 다음의 사본입니다. AlertDetailsVC 약간의 수정으로.

사용자가 Scene 나를 위해 AlertDetailsVC 그는 버튼을 한 번에 누를 수 있어요 Table ~라고 불리는 Applies To.그 사람이 이걸 누르면 Applies To 버튼을 누르면 프로그램이 Segues 새로운 Scene 사용하는 SelectIOVC;그런 다음 Delegate 그 장면의 Delegate 에 정의되어 있습니다. AlertDetailsVC.

그런 다음 사용자가 Done 에 Navigation Bar 에 SelectIOIOVC Scene;그만큼 SelectIOVC 그런 다음 클래스는 사용자가 선택한 일부 데이터와 정보를 다시 반환합니다. AlertDetailsVC.

이 흐름은 유사하게 복사됩니다. UtilizationDetailsVC.

여러개 추가했어요 NSLog(@"%s",__PRETTY_FUNCTION__); 호출되어야 하는 내 메서드의 줄입니다.

지금;내가 쳤을 때 Done 내 AlertDetailsVC 메소드가 올바르게 호출되고 프로그램이 Segues 에서 돌아오다 SelectIOVC 나에게 AlertDetailsVC 사용자가 입력한 해당 페이지의 정보를 업데이트합니다.

그러나 내 문제는 다음과 같습니다.내가 내 안에서 똑같은 일을 할 때 UtilizationDetailsVC 페이지;그리고 그것을 누르세요' Done 단추;프로그램은 그렇지 않습니다 Segue 뒤쪽에.

잘 모르겠습니다.내 기록에 따르면 첫 번째 SelectIOVCDidSave 다음의 경우에 호출됩니다. AlertDetailsVC;하지만 그것은 결코 호출되지 않습니다 UtilizationDetailsVC.

관련 코드:

이용:

`UtilizationDetailsVC.h`:

@class UtilizationDetailVC;

@protocol UtilizationDetailsVCDelegate <NSObject>

- (void)utilizationDetailsVCDidCancel: (UtilizationDetailVC *)controller;
- (void)utilizationDetailsVCDidDelete: (UtilizationDetailVC *)controller;
- (void)utilizationDetailsVCDidSave: (UtilizationDetailVC *)controller;

@end

@interface UtilizationDetailVC : UITableViewController <UITextFieldDelegate, UIActionSheetDelegate, SelectTimeVCDelegate, SelectDaysVCDelegate, SelectIOVCDelegate, SelectIODetailsVCDelegate, SelectTimeLengthVCDelegate, MessageVCDelegate, UtilizationContactsVCDelegate, SelectDateVCDelegate>

@property (weak, nonatomic) IBOutlet UIBarButtonItem *doneButton;
@property (strong, nonatomic) NCUtilization *utilization;
@property (weak, nonatomic) id <UtilizationDetailsVCDelegate> delegate;
@property (strong, nonatomic) NSString *identifier;
@property (strong, nonatomic) NSIndexPath *indexPath;

@property (strong, nonatomic) IBOutlet UITableViewCell *cellEnabled;
@property (strong, nonatomic) IBOutlet UITextField *titleField;
@property (strong, nonatomic) IBOutlet UITextField *descriptionField;
@property (strong, nonatomic) IBOutlet UILabel *startTimeField;
@property (strong, nonatomic) IBOutlet UILabel *endTimeField;
@property (strong, nonatomic) IBOutlet UISwitch *allDayField;
@property (strong, nonatomic) IBOutlet UILabel *daysField;
@property (strong, nonatomic) NSArray *days;
@property (strong, nonatomic) IBOutlet UILabel *appliesToField;
@property (strong, nonatomic) IBOutlet UILabel *notifyWhenField;
@property (strong, nonatomic) IBOutlet UILabel *changeExistsForField;
@property (strong, nonatomic) IBOutlet UILabel *contactsField;
@property (strong, nonatomic) NSArray *contactUUIDs;
@property (strong, nonatomic) IBOutlet UILabel *messageField;
@property (strong, nonatomic) IBOutlet UILabel *startDateField;
@property (strong, nonatomic) NSDate *startDate;
@property (strong, nonatomic) IBOutlet UILabel *endDateField;
@property (strong, nonatomic) NSDate *endDate;


- (IBAction)cancel:(id)sender;
- (IBAction)done:(id)sender;

@end

UtilizationDetailsVC.m 관련 메소드:

- (void)selectIOVCDidCancel:(SelectIOVC *)controller
{
     NSLog(@"%s",__PRETTY_FUNCTION__);
    [self.navigationController popViewControllerAnimated:YES];
}

- (void)selectIOVCDidSave:(SelectIOVC *)controller
{
     NSLog(@"%s",__PRETTY_FUNCTION__);
    // Update input/output information with user selection on UI.
    self.appliesToField.text = controller.ioDescription;
    self.notifyWhenField.text = @"";
    [self.navigationController popViewControllerAnimated:YES];
}

경고:

AlertDetailsVC.h:

#import <UIKit/UIKit.h>
#import "NCAlert.h"
#import "SelectTimeVC.h"
#import "SelectDaysVC.h"
#import "SelectIOVC.h"
#import "SelectIODetailsVC.h"
#import "SelectTimeLengthVC.h"
#import "MessageVC.h"
#import "AlertContactsVC.h"

@class AlertDetailsVC;

@protocol AlertDetailsVCDelegate <NSObject>

- (void)alertDetailsVCDidCancel: (AlertDetailsVC *)controller;
- (void)alertDetailsVCDidDelete: (AlertDetailsVC *)controller;
- (void)alertDetailsVCDidSave: (AlertDetailsVC *)controller;

@end

@interface AlertDetailsVC : UITableViewController <UITextFieldDelegate, UIActionSheetDelegate, SelectTimeVCDelegate, SelectDaysVCDelegate, SelectIOVCDelegate, SelectIODetailsVCDelegate, SelectTimeLengthVCDelegate, MessageVCDelegate, AlertContactsVCDelegate>

@property (weak, nonatomic) IBOutlet UIBarButtonItem *doneButton;
@property (strong, nonatomic) NCAlert *alert;
@property (weak, nonatomic) id <AlertDetailsVCDelegate> delegate;
@property (strong, nonatomic) NSString *identifier;
@property (strong, nonatomic) NSIndexPath *indexPath;

@property (strong, nonatomic) IBOutlet UITableViewCell *cellEnabled;
@property (strong, nonatomic) IBOutlet UITextField *titleField;
@property (strong, nonatomic) IBOutlet UITextField *descriptionField;
@property (strong, nonatomic) IBOutlet UILabel *startTimeField;
@property (strong, nonatomic) IBOutlet UILabel *endTimeField;
@property (strong, nonatomic) IBOutlet UISwitch *allDayField;
@property (strong, nonatomic) IBOutlet UILabel *daysField;
@property (strong, nonatomic) NSArray *days;
@property (strong, nonatomic) IBOutlet UILabel *appliesToField;
@property (strong, nonatomic) IBOutlet UILabel *notifyWhenField;
@property (strong, nonatomic) IBOutlet UILabel *changeExistsForField;
@property (strong, nonatomic) IBOutlet UISwitch *localAlertField;
@property (strong, nonatomic) IBOutlet UISwitch *localAlertAudioField;
@property (strong, nonatomic) IBOutlet UILabel *contactsField;
@property (strong, nonatomic) NSArray *contactUUIDs;
@property (strong, nonatomic) IBOutlet UILabel *messageField;

- (IBAction)cancel:(id)sender;
- (IBAction)done:(id)sender;

@end

AlertDetailsVC.m 관련 메소드:

    - (void)selectIOVCDidCancel:(SelectIOVC *)controller
{
     NSLog(@"%s",__PRETTY_FUNCTION__);
    [self.navigationController popViewControllerAnimated:YES];
}

- (void)selectIOVCDidSave:(SelectIOVC *)controller
{
     NSLog(@"%s",__PRETTY_FUNCTION__);
    // Update input/output information with user selection on UI.
    self.appliesToField.text = controller.ioDescription;
    self.notifyWhenField.text = @"";
    [self.navigationController popViewControllerAnimated:YES];
}

선택IOVC:

SelectIOVC.h

#import <UIKit/UIKit.h>

@class SelectIOVC;

@protocol SelectIOVCDelegate <NSObject>

- (void)selectIOVCDidCancel: (SelectIOVC *)controller;
- (void)selectIOVCDidSave: (SelectIOVC *)controller;

@end

@interface SelectIOVC : UITableViewController <UIPickerViewDelegate, UIPickerViewDataSource> {
    NSArray *selectIOType;
    NSArray *selectIO;
}

@property (weak, nonatomic) IBOutlet UIBarButtonItem *doneButton;

@property (weak, nonatomic) id <SelectIOVCDelegate> delegate;
@property (weak, nonatomic) NSString *identifier;
@property (strong, nonatomic) IBOutlet UIPickerView *picker;
@property (assign, nonatomic) NSUInteger type;
@property (assign, nonatomic) NSUInteger io;
@property (assign, nonatomic) NSUInteger number;
@property (strong, nonatomic) NSString *ioDescription;

- (IBAction)cancel:(id)sender;
- (IBAction)done:(id)sender;

@end

SelectIOVC.m 관련 방법:

- (IBAction)cancel:(id)sender
{

    [self.delegate selectIOVCDidCancel:self];
     NSLog(@"%s",__PRETTY_FUNCTION__);
}

- (IBAction)done:(id)sender
{
     NSLog(@"%s",__PRETTY_FUNCTION__);

    NSString *typeDescription = [selectIOType objectAtIndex:self.type];
    NSString *ioDescription = [selectIO objectAtIndex:self.io];
    self.ioDescription = [NSString stringWithFormat:@"%@ %@ %01d", typeDescription, ioDescription, self.number];
    [self.delegate selectIOVCDidSave:self];
}

- (void)viewDidUnload {
    [self setDoneButton:nil];
    [super viewDidUnload];
}

Answer 1

나는 이 문제를 해결했습니다.나는 - (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender 둘 다 내 UtilizationDetailsVC 뿐만 아니라 내 AlertDetailsVC.

하지만;내 실수는 내가 Segue Identifier 위해 Segue ~ 사이 UtilizationDetailsVC'에스 Scene 그리고 SelectIOVC Scene.

내 값에 따라 값을 설정 Identifier 내 문제가 해결되었는지 확인하고 있었거든요.