崩溃试图设置文本域的代理

我有很多文本域，我试图让他们做的是退出键时使用退出。为了使这个工作，你需要设置每个文本字段的代表为自己，如[textfield setDelegate: self];。我的项目中有超过50个文本框，为了让它们都解雇，我必须为每个文本框复制该行代码。在下面的例子中，我使用了一个for循环来尝试缩小它，但是当我尝试时，我的项目崩溃并给了我这个错误。有人能告诉我什么是我做错了，我怎么能解决这个问题？崩溃试图设置文本域的代理

//.h 
    @interface InsertScheduleCGPS : UIViewController <UITextFieldDelegate>{ 
     NSArray *Dayh; 
     IBOutlet UITextField *Day11; 
    } 
    @property(nonatomic, assign) id<UITextFieldDelegate> delegate; 
    @property (nonatomic,strong) NSArray *Dayh;

。

//.m 
- (void)viewDidLoad 
{ 

    [super viewDidLoad]; 

    Dayh = [NSArray arrayWithObjects:@"Day11", nil]; 

    NSLog(@"euf"); 

    for(int i=0; i<[self.Dayh count]; i++) { 
     NSLog(@"dd%@",[self.Dayh objectAtIndex:i]); 
     [[self.Dayh objectAtIndex:i] setDelegate: self]; 
} 




- (BOOL)textFieldShouldReturn:(UITextField *)Day11 { 
     [[self view] endEditing:YES]; 



     return NO; 
    }

错误：

2014-01-18 19:15:26.712 Swepple[64912:70b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFConstantString setDelegate:]: unrecognized selector sent to instance 0x144ec' 
*** First throw call stack: 
(
    0 CoreFoundation      0x0183b5e4 __exceptionPreprocess + 180 
    1 libobjc.A.dylib      0x015be8b6 objc_exception_throw + 44 
    2 CoreFoundation      0x018d8903 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275 
    3 CoreFoundation      0x0182b90b ___forwarding___ + 1019 
    4 CoreFoundation      0x0182b4ee _CF_forwarding_prep_0 + 14 
    5 Swepple        0x0000bbd6 -[InsertScheduleCGPS viewDidLoad] + 4262 
    6 UIKit        0x00440318 -[UIViewController loadViewIfRequired] + 696 
    7 UIKit        0x004405b4 -[UIViewController view] + 35 
    8 UIKit        0x0044f361 -[UIViewController viewControllerForRotation] + 63 
    9 UIKit        0x00446f00 -[UIViewController _visibleView] + 84 
    10 UIKit        0x006d511a -[UIWindowController transition:fromViewController:toViewController:target:didEndSelector:animation:] + 5199 
    11 UIKit        0x0044c0fc -[UIViewController presentViewController:withTransition:completion:] + 6433 
    12 UIKit        0x0044c61f -[UIViewController presentViewController:animated:completion:] + 130 
    13 UIKit        0x0044c65f -[UIViewController presentModalViewController:animated:] + 56 
    14 UIKit        0x00870e16 -[UIStoryboardModalSegue perform] + 271 
    15 UIKit        0x0086107e -[UIStoryboardSegueTemplate _perform:] + 174 
    16 UIKit        0x00442280 -[UIViewController performSegueWithIdentifier:sender:] + 72 
    17 Swepple        0x000052d4 -[SecondViewController insert:] + 244 
    18 libobjc.A.dylib      0x015d0874 -[NSObject performSelector:withObject:withObject:] + 77 
    19 UIKit        0x0032e0c2 -[UIApplication sendAction:to:from:forEvent:] + 108 
    20 UIKit        0x0032e04e -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 61 
    21 UIKit        0x004260c1 -[UIControl sendAction:to:forEvent:] + 66 
    22 UIKit        0x00426484 -[UIControl _sendActionsForEvents:withEvent:] + 577 
    23 UIKit        0x00425733 -[UIControl touchesEnded:withEvent:] + 641 
    24 UIKit        0x0036b51d -[UIWindow _sendTouchesForEvent:] + 852 
    25 UIKit        0x0036c184 -[UIWindow sendEvent:] + 1232 
    26 UIKit        0x0033fe86 -[UIApplication sendEvent:] + 242 
    27 UIKit        0x0032a18f _UIApplicationHandleEventQueue + 11421 
    28 CoreFoundation      0x017c483f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15 
    29 CoreFoundation      0x017c41cb __CFRunLoopDoSources0 + 235 
    30 CoreFoundation      0x017e129e __CFRunLoopRun + 910 
    31 CoreFoundation      0x017e0ac3 CFRunLoopRunSpecific + 467 
    32 CoreFoundation      0x017e08db CFRunLoopRunInMode + 123 
    33 GraphicsServices     0x037e09e2 GSEventRunModal + 192 
    34 GraphicsServices     0x037e0809 GSEventRun + 104 
    35 UIKit        0x0032cd3b UIApplicationMain + 1225 
    36 Swepple        0x0000e04d main + 141 
    37 libdyld.dylib      0x01d7c70d start + 1 
) 
libc++abi.dylib: terminating with uncaught exception of type NSException 
(lldb)

来源

2014-01-19 user2649355

我看不到您将代表分配给*文本字段*的位置。你有一个* string *（“Day11”）的数组，然后尝试设置将委托分配给该字符串。这是例外。 –

我想让它等于这行代码[Day11 setDelegate：self];'。我试图做什么不可能？ – user2649355

你可能是指

Dayh = [NSArray arrayWithObjects:Day11, nil];

目前，Dayh是包含串 “Day11”，而不是文本字段的数组。

来源

2014-01-19 00:44:25

非常感谢！我刚刚花了最后2个小时试图弄清楚这一点。 – user2649355

崩溃试图设置文本域的代理

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