UITextField无法提供指标

当用户轻击文本字段时，通常闪烁的指示器显示他们正在输入该iOS UITextField。但是，在这个视图控制器上它没有。奇怪的是，当我在不同的视图控制器上使用相同的代码时，它确实出现了。UITextField无法提供指标

@interface MainViewController() 
{ 
     UITextField *fldye; 
} 

    fldye = [[UITextField alloc] initWithFrame:CGRectMake(165, 180, 140, 25)]; 
    fldye.placeholder = @"Year"; 
    fldye.keyboardType = UIKeyboardTypeNumberPad; 
    [fldye setBackgroundColor:[UIColor whiteColor]]; 
    [fldye.layer setCornerRadius:5.0f]; 
    [fldye.layer setMasksToBounds:YES]; 
    [fldye setTextColor:[UIColor blackColor]]; 
    fldye.TextAlignment=NSTextAlignmentCenter; 
    NSUserDefaults *defaujetzb = [NSUserDefaults standardUserDefaults]; 
    NSString *labsterzb = [defaujetzb objectForKey:@"mypreviousaddedyear"]; 
    fldye.text = labsterzb;

这是我加入的图书馆...

#import <UIKit/UIKit.h> 
#import <QuartzCore/QuartzCore.h> 
#import "Cellmain.h" 
#import "Celleventmain.h" //I have two tableviews present on this controller as opposed to others 
#import <MessageUI/MessageUI.h> 
#import <iAd/iAd.h> 
#import <StoreKit/StoreKit.h> 
#import <FacebookSDK/FacebookSDK.h> 
#import <AVFoundation/AVFoundation.h> 
#import <AssetsLibrary/AssetsLibrary.h> 
#import <CoreLocation/CoreLocation.h> 
#import <MapKit/MapKit.h> 
#import <CoreLocation/CoreLocation.h> 
#import "AppDelegate.h" 
#import <Social/Social.h> 

#import <Accounts/Accounts.h> 
@interface MainViewController : UIViewController <MFMailComposeViewControllerDelegate, NSXMLParserDelegate, UIImagePickerControllerDelegate, UITableViewDelegate, UITableViewDataSource, ADBannerViewDelegate, UIActionSheetDelegate, SKStoreProductViewControllerDelegate, CLLocationManagerDelegate, UITextFieldDelegate>

来源

2014-09-05 Hamlier Walp

事实证明，着色颜色与别的奇怪的是相互矛盾的。我能够手动绕过它。

[fldye setTintColor:[UIColor blackColor]];

来源

2014-09-05 03:50:43

UITextField无法提供指标

回答

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