uitextfield

问题 Any one help to solve this issues I am new for the development I need to login with phone number as well as email id with same textfield how could I achieve that hereby I have to set the 10 digit limit for phone number as well as US like (838)-(838)-3333 format phone number ..and email id with same text filed ..how do I validate that user enter phone number or email..any one help me to solve the issues thanks in advance here is my code if (!([self.usernameTextField.text validEmail] || [self

问题 Any one help to solve this issues I am new for the development I need to login with phone number as well as email id with same textfield how could I achieve that hereby I have to set the 10 digit limit for phone number as well as US like (838)-(838)-3333 format phone number ..and email id with same text filed ..how do I validate that user enter phone number or email..any one help me to solve the issues thanks in advance here is my code if (!([self.usernameTextField.text validEmail] || [self

问题 I want to add a ',' in '11000' like this '11,000' and decimal ('.') in 465 like 4.65. I wrote this for Comma : - (BOOL) textField: (UITextField *)textField shouldChangeCharactersInRange: (NSRange)range replacementString: (NSString *)string { NSString *unformattedValue; NSNumberFormatter *formatter; NSNumber *amount; switch ([textField tag]) { case 102: unformattedValue = [textField.text stringByReplacingOccurrencesOfString:@"," withString:@""]; unformattedValue = [unformattedValue

问题 I want customized UITextfield which has placeholder behavior same as android also I want error label within UITextfield. Recently I have seen in android. They have default text area where placeholder does not get hidden when a user starts writing, Instead of hiding they keep placeholder upside of textarea. 回答1: Recently i have created my CustomTextfield class which is same as your requirements. Here is the Github link to download class and its usage https://github.com/indrajitv

问题 I have an iOS app written in Swift. I am struggling to get the text from the UITextField because my app crashes on this line of code: let dataUser = self.userField.text I get the following crash report: fatal error: unexpectedly found nil while unwrapping an Optional value What am I doing wrong?... all I want to do is get the text from the text field. Thanks, Dan. 回答1: Check in Interface Builder that your UITextField is properly linked to your "userField" IBOutlet: your UITextField, self

问题 I am trying to make all of my text fields required to make sure that users does not leave it empty. I tried this but for some reason it's not working. I feel like my logic is correct, but it's an issue with swift's logic Here is my code: let title = txtTitle.text! let location = txtWhere.text! let when = txtWhen.text! if title != nil && location != nil && when != nil { var titleArray = [String]() var whereArray = [String]() var whenArray = [String]() let titleObject = UserDefaults.standard

问题 I would like to have UITextField appear only with a bottom border. See the designer's image below: UIBezierPath *path = [UIBezierPath bezierPath]; [path moveToPoint:CGPointMake(150.0, 350.0)]; [path addLineToPoint:CGPointMake(250.0, 209.0)]; CAShapeLayer *shapeLayer = [CAShapeLayer layer]; shapeLayer.path = [path CGPath]; shapeLayer.strokeColor = [[UIColor blueColor] CGColor]; shapeLayer.lineWidth = 3.0; shapeLayer.fillColor = [[UIColor clearColor] CGColor]; I have Tried This but not Getting

问题 I have designed a signup form in ios with four UITextField s and a UIButton . I have set the buttons' enabled property to NO by default. Now I want to enable the button only when all the four textfields are filled. Can you please help me out with this as I a new to ios, and stuck with this issue. 回答1: A better way would be to use the didChange method like the UITextViewDelegate method, but as we know the UITextFieldDelegate does not have a didChange method. You can manually add behaviour. You

问题 How can I limit a UITextField to one decimal point with Swift? The text field is for entering a price, so I cannot allow more than one decimal point. If I was using Objective-C, I would have used this code: -(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { NSString *newString = [textField.text stringByReplacingCharactersInRange:range withString:string]; NSArray *sep = [newString componentsSeparatedByString:@"."]; if(

问题 How can I draw a background behind all my buttons and textfields like on the Foursquare iPhone app? See where it says "Share with..." 回答1: You can achieve rounded corners on any view by changing the cornerRadius property of the view's backing CALayer. To access these properties, you will have to link against the QuartzCore framework. Then you can change the corner radius like this: textFieldBackgroundView.layer.cornerRadius = 10; Just make sure to add <QuartzCore/QuartzCore.h> to your project