作成した新しいビューに問題があります。単一の UITextField と UIButton を持つ登録ビューがあります。
このビューを別のビューから呼び出す
//otherview.m
- (void)viewDidLoad
{
[super viewDidLoad];
RegistrationAlertViewController *regreg = [[RegistrationAlertViewController alloc] init];
[self.view addSubview:regreg.view];
}
次に、このようにregregviewを作成します
//regregView.h
#import <UIKit/UIKit.h>
@interface RegistrationAlertViewController : UIViewController <UITextFieldDelegate> {
// textfields for registration
IBOutlet UITextField *registrationTextFieldA;
}
// textfields for registration
@property (strong, nonatomic) IBOutlet UITextField *registrationTextFieldA;
@end
//regregView.m
#import "RegistrationAlertViewController.h"
@interface RegistrationAlertViewController ()
@end
@implementation RegistrationAlertViewController
@synthesize registrationTextFieldA;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
registrationTextFieldA = [[UITextField alloc] init];
registrationTextFieldA.delegate = self;
[registrationTextFieldA becomeFirstResponder];
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
if([textField.text length] > 4)
{
//Get next TextField... A simple way to do this:
// UITextField *newTextField = [textField.superview viewWithTag:(textField.tag+1)];
// [newTextField becomeFirstResponder];
return NO;
//remember to set the tags in order
}
return YES; //you probably want to review this...
}
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
if((textField.text.length + string.length) > 4)
{
//Get next TextField... A simple way to do this:
// UITextField *newTextField = [textField.superview viewWithTag:(textField.tag+1)];
// [newTextField becomeFirstResponder];
//remember to set the tags in order
}
return YES; //you probably want to review this...
}
@end
regregView.m に 2 つのデリゲートがあります。
- textFieldShouldBeginEditing
- shouldChangeCharactersInRange
奇妙な理由で、ビューが最初にロードされたときにtextFieldShouldBeginEditingが入力されますが、その後、 registrationTextFieldA shouldChangeCharactersInRangeに文字を入力し始めると、何らかの奇妙な理由で入力されることはありません。
私のデリゲートが適切に機能していない理由を理解する助けがあれば、大歓迎です。