Ios 莫代尔·塞格·沃恩'；由于实例选择器的原因，无法接合

我在视图控制器下面有两个O按钮。其中一个按钮进行计算。第二个显示了有关这些计算的信息。有关信息，我正在使用另一个名为werkwijzeViewController的viewcontroller的模式segue。“计算”按钮不会带来问题。在按下信息按钮时，我得到“UIStoryboardModalSegue popoverController]：发送到实例的无法识别的选择器”。发生了什么？我正在上传一些相关代码：

viewcontroller.h

#import <UIKit/UIKit.h>
#import "breuk.h"
#import "verklaringViewController.h"

@interface ViewController : UIViewController <UIPopoverControllerDelegate>
@property (strong, nonatomic) IBOutlet UITextField *tellerVeld1;
@property (strong, nonatomic) IBOutlet UITextField *noemerVeld1;
@property (strong, nonatomic) IBOutlet UILabel *quotientVeld;
@property (strong, nonatomic) IBOutlet UITextField *tellerVeld2;
@property (strong, nonatomic) IBOutlet UITextField *noemerVeld2;
@property (strong, nonatomic) IBOutlet UIButton *berekenKnop;
@property (strong, nonatomic) breuk *breuk1;
@property (strong, nonatomic) breuk *breuk2;
@property (strong, nonatomic) breuk *hoofdbreuk;

@property (strong, nonatomic) IBOutlet UITextField *uitkomstNoemerVeld;
@property (strong, nonatomic) IBOutlet UITextField *uitkomstTellerVeld;
@property (strong, nonatomic) IBOutlet UILabel *uitkomstStreep;

@property (strong, nonatomic) UIPopoverController *popoverController;



- (IBAction)berekenQuotient:(id)sender;
@end

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

@interface werkwijzeViewController : UIViewController
@property (strong, nonatomic) IBOutlet UIButton *af;
@property (strong, nonatomic) IBOutlet UITextView *vereenvoudigBreuken;
@property (strong, nonatomic) IBOutlet UITextView *vermenigvuldigBreuken;

@property (strong, nonatomic) NSMutableArray *tabelTellerOntbonden;
@property (strong, nonatomic) NSMutableArray *tabelNoemerOntbonden;
@property (strong, nonatomic) NSMutableArray *tabelGgdOntbonden;

@end

-（void）prepareForSegue:（UIStoryboardSegue*）segue发送方：（id）发送方{

@结束

werkwijzeViewController.h

#import <UIKit/UIKit.h>
#import "breuk.h"
#import "verklaringViewController.h"

@interface ViewController : UIViewController <UIPopoverControllerDelegate>
@property (strong, nonatomic) IBOutlet UITextField *tellerVeld1;
@property (strong, nonatomic) IBOutlet UITextField *noemerVeld1;
@property (strong, nonatomic) IBOutlet UILabel *quotientVeld;
@property (strong, nonatomic) IBOutlet UITextField *tellerVeld2;
@property (strong, nonatomic) IBOutlet UITextField *noemerVeld2;
@property (strong, nonatomic) IBOutlet UIButton *berekenKnop;
@property (strong, nonatomic) breuk *breuk1;
@property (strong, nonatomic) breuk *breuk2;
@property (strong, nonatomic) breuk *hoofdbreuk;

@property (strong, nonatomic) IBOutlet UITextField *uitkomstNoemerVeld;
@property (strong, nonatomic) IBOutlet UITextField *uitkomstTellerVeld;
@property (strong, nonatomic) IBOutlet UILabel *uitkomstStreep;

@property (strong, nonatomic) UIPopoverController *popoverController;



- (IBAction)berekenQuotient:(id)sender;
@end

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

@interface werkwijzeViewController : UIViewController
@property (strong, nonatomic) IBOutlet UIButton *af;
@property (strong, nonatomic) IBOutlet UITextView *vereenvoudigBreuken;
@property (strong, nonatomic) IBOutlet UITextView *vermenigvuldigBreuken;

@property (strong, nonatomic) NSMutableArray *tabelTellerOntbonden;
@property (strong, nonatomic) NSMutableArray *tabelNoemerOntbonden;
@property (strong, nonatomic) NSMutableArray *tabelGgdOntbonden;

@end

布雷克

#import "breuk.h"

@implementation breuk
@synthesize tellerBreuk;
@synthesize noemerBreuk;
@synthesize origineleNoemerBreuk;
@synthesize origineleTellerBreuk;
@synthesize ggd;
@synthesize quotientBreuk;
 ...

   - (NSMutableArray *)ontbindInFactoren:(int)product inTabel:(NSMutableArray *)tabel
    {
        for (int priemfactor=1; priemfactor<=product; priemfactor++)
        {
            while (product%priemfactor==0)
            {
                [tabel addObject:[NSString stringWithFormat:@"%i",priemfactor]];
            }
        }
        return tabel;
    }


    @end

#导入“breuk.h”
@实施布雷克
@布雷克；
@合成noemerBreuk；
@合成原花青素；
@合成原花青素；
@合成ggd；
@综合商；
...
-（NSMutableArray*）ontBindinFinFactoren:（int）product inTabel:（NSMutableArray*）选项卡
{
对于（int priemfactor=1；priemfactor，您应该发布绑定到两个按钮的所有iAction方法的代码

在我看来，问题在于prepareForSegue方法盲目地将segue强制转换为UIStoryboardPopoverSegue类型，然后尝试访问segue的popoverController属性

您的prepareForSegue方法将为每个segue调用。您需要在prepareForSegue中检查segue标识符的代码，以确保在将segue转换为UIStoryboardPopoverSegue之前处理的是正确的segue。
我遵循了您的建议。问题如下：我首先执行popover，然后在popover外按，然后单击然后我想使用模式segue。正如你建议的那样，ios认为segue仍然是popover。我如何才能将segue转换为模式？如果我不先按下popover按钮，模式代码就可以工作。但我想将它们合并。。。
#import "breuk.h"

@implementation breuk
@synthesize tellerBreuk;
@synthesize noemerBreuk;
@synthesize origineleNoemerBreuk;
@synthesize origineleTellerBreuk;
@synthesize ggd;
@synthesize quotientBreuk;
 ...

   - (NSMutableArray *)ontbindInFactoren:(int)product inTabel:(NSMutableArray *)tabel
    {
        for (int priemfactor=1; priemfactor<=product; priemfactor++)
        {
            while (product%priemfactor==0)
            {
                [tabel addObject:[NSString stringWithFormat:@"%i",priemfactor]];
            }
        }
        return tabel;
    }


    @end