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How can I override a Swift delegate method to take more parameters?
How can I develop for iPhone using a Windows development machine?How can I disable the UITableView selection?How do I create delegates in Objective-C?How can I make a UITextField move up when the keyboard is present - on starting to edit?Why is textFieldDidEndEditing: not being called?iPhone:How to manage UITextfield delegate methods on dynamic number of customcellsHow to call Objective-C code from SwiftHow would I create a UIAlertView in Swift?UITextField custom drawing when editingDismiss the Number Pad with a custom table view cell with TextField
I have a form with 3 UITextFields. I'd like to validate the user input for each field, when the user is done inputing text in that specific field. Right now, I've got a method
validateAllFields()
that I call in:
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields()
I'd rather validate a single field, after its text has been modified, not validate all fields after each one has been modified.
Is there a ways to override a delegate method or extend UITextField to take more parameters? Something like:
override func textFieldDidEndEditing(_ textField: UITextField,
textFieldIdentifier: TextFieldIdentifierEnum)
self.validate(textField: textField, basedOn: textFieldIdentifier)
I suspect it can be done with an extension, but I'm unclear how to proceed.
Thanks for the help!
ios swift cocoa-touch uikit
asked Mar 7 at 21:20
RIP.Ben.FranklinRIP.Ben.Franklin
761212
add a comment |
I have a form with 3 UITextFields. I'd like to validate the user input for each field, when the user is done inputing text in that specific field. Right now, I've got a method
validateAllFields()
that I call in:
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields()
I'd rather validate a single field, after its text has been modified, not validate all fields after each one has been modified.
Is there a ways to override a delegate method or extend UITextField to take more parameters? Something like:
override func textFieldDidEndEditing(_ textField: UITextField,
textFieldIdentifier: TextFieldIdentifierEnum)
self.validate(textField: textField, basedOn: textFieldIdentifier)
I suspect it can be done with an extension, but I'm unclear how to proceed.
Thanks for the help!
ios swift cocoa-touch uikit
asked Mar 7 at 21:20
RIP.Ben.FranklinRIP.Ben.Franklin
761212
You can't add more parameters. And there is no need. You are already told which text field is affected.
– rmaddy
Mar 7 at 21:23
add a comment |
I have a form with 3 UITextFields. I'd like to validate the user input for each field, when the user is done inputing text in that specific field. Right now, I've got a method
validateAllFields()
that I call in:
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields()
I'd rather validate a single field, after its text has been modified, not validate all fields after each one has been modified.
Is there a ways to override a delegate method or extend UITextField to take more parameters? Something like:
override func textFieldDidEndEditing(_ textField: UITextField,
textFieldIdentifier: TextFieldIdentifierEnum)
self.validate(textField: textField, basedOn: textFieldIdentifier)
I suspect it can be done with an extension, but I'm unclear how to proceed.
Thanks for the help!
ios swift cocoa-touch uikit
asked Mar 7 at 21:20
RIP.Ben.FranklinRIP.Ben.Franklin
761212
I have a form with 3 UITextFields. I'd like to validate the user input for each field, when the user is done inputing text in that specific field. Right now, I've got a method
validateAllFields()
that I call in:
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields()
I'd rather validate a single field, after its text has been modified, not validate all fields after each one has been modified.
Is there a ways to override a delegate method or extend UITextField to take more parameters? Something like:
override func textFieldDidEndEditing(_ textField: UITextField,
textFieldIdentifier: TextFieldIdentifierEnum)
self.validate(textField: textField, basedOn: textFieldIdentifier)
I suspect it can be done with an extension, but I'm unclear how to proceed.
Thanks for the help!
ios swift cocoa-touch uikit
ios swift cocoa-touch uikit
asked Mar 7 at 21:20
RIP.Ben.FranklinRIP.Ben.Franklin
761212
asked Mar 7 at 21:20
RIP.Ben.FranklinRIP.Ben.Franklin
761212
asked Mar 7 at 21:20
RIP.Ben.FranklinRIP.Ben.Franklin
761212
asked Mar 7 at 21:20
RIP.Ben.FranklinRIP.Ben.Franklin
761212
asked Mar 7 at 21:20
RIP.Ben.FranklinRIP.Ben.Franklin
761212
761212
You can't add more parameters. And there is no need. You are already told which text field is affected.
– rmaddy
Mar 7 at 21:23
add a comment |
You can't add more parameters. And there is no need. You are already told which text field is affected.
– rmaddy
Mar 7 at 21:23
You can't add more parameters. And there is no need. You are already told which text field is affected.
– rmaddy
Mar 7 at 21:23
You can't add more parameters. And there is no need. You are already told which text field is affected.
– rmaddy
Mar 7 at 21:23
add a comment |
1 Answer
1
active
oldest
votes
You don't have to as the paramter (_ textField: UITextField) gives you the current textfield the user changes
Suppose you have
@IBOutlet weak var emailTexf:UITextField!
@IBOutlet weak var passTexf:UITextField!
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields(textField)
fun validateAllFields(_ current:UITextField)
if emailTexf == current
else if passTexf == current
else // etc
answered Mar 7 at 21:25
Sh_KhanSh_Khan
46.6k51432
Sure, that makes sense. How do I distinguish them? In your example, you use "emailTexf" and "passTexf", but where are you getting those from? Happy to upvote and select this as the answer, if you can help me clarify that. Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:36
1
you need to replace them with your own variables , above is for an example
– Sh_Khan
Mar 8 at 16:37
Can you give a more complete example that explains what you're saying? Sorry, I'm not understanding. Thank you!
– RIP.Ben.Franklin
Mar 8 at 16:38
1
It's supposed you have outlets for the textfields to validate see edit
– Sh_Khan
Mar 8 at 16:40
Oh yeah! Of course! Got it! Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:47
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You don't have to as the paramter (_ textField: UITextField) gives you the current textfield the user changes
Suppose you have
@IBOutlet weak var emailTexf:UITextField!
@IBOutlet weak var passTexf:UITextField!
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields(textField)
fun validateAllFields(_ current:UITextField)
if emailTexf == current
else if passTexf == current
else // etc
answered Mar 7 at 21:25
Sh_KhanSh_Khan
46.6k51432
Sure, that makes sense. How do I distinguish them? In your example, you use "emailTexf" and "passTexf", but where are you getting those from? Happy to upvote and select this as the answer, if you can help me clarify that. Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:36
1
you need to replace them with your own variables , above is for an example
– Sh_Khan
Mar 8 at 16:37
Can you give a more complete example that explains what you're saying? Sorry, I'm not understanding. Thank you!
– RIP.Ben.Franklin
Mar 8 at 16:38
1
It's supposed you have outlets for the textfields to validate see edit
– Sh_Khan
Mar 8 at 16:40
Oh yeah! Of course! Got it! Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:47
add a comment |
You don't have to as the paramter (_ textField: UITextField) gives you the current textfield the user changes
Suppose you have
@IBOutlet weak var emailTexf:UITextField!
@IBOutlet weak var passTexf:UITextField!
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields(textField)
fun validateAllFields(_ current:UITextField)
if emailTexf == current
else if passTexf == current
else // etc
answered Mar 7 at 21:25
Sh_KhanSh_Khan
46.6k51432
Sure, that makes sense. How do I distinguish them? In your example, you use "emailTexf" and "passTexf", but where are you getting those from? Happy to upvote and select this as the answer, if you can help me clarify that. Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:36
1
you need to replace them with your own variables , above is for an example
– Sh_Khan
Mar 8 at 16:37
Can you give a more complete example that explains what you're saying? Sorry, I'm not understanding. Thank you!
– RIP.Ben.Franklin
Mar 8 at 16:38
1
It's supposed you have outlets for the textfields to validate see edit
– Sh_Khan
Mar 8 at 16:40
Oh yeah! Of course! Got it! Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:47
add a comment |
You don't have to as the paramter (_ textField: UITextField) gives you the current textfield the user changes
Suppose you have
@IBOutlet weak var emailTexf:UITextField!
@IBOutlet weak var passTexf:UITextField!
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields(textField)
fun validateAllFields(_ current:UITextField)
if emailTexf == current
else if passTexf == current
else // etc
answered Mar 7 at 21:25
Sh_KhanSh_Khan
46.6k51432
You don't have to as the paramter (_ textField: UITextField) gives you the current textfield the user changes
Suppose you have
@IBOutlet weak var emailTexf:UITextField!
@IBOutlet weak var passTexf:UITextField!
func textFieldDidEndEditing(_ textField: UITextField)
self.validateAllFields(textField)
fun validateAllFields(_ current:UITextField)
if emailTexf == current
else if passTexf == current
else // etc
answered Mar 7 at 21:25
Sh_KhanSh_Khan
46.6k51432
edited Mar 8 at 16:39
answered Mar 7 at 21:25
Sh_KhanSh_Khan
46.6k51432
answered Mar 7 at 21:25
Sh_KhanSh_Khan
46.6k51432
answered Mar 7 at 21:25
Sh_KhanSh_Khan
46.6k51432
46.6k51432
Sure, that makes sense. How do I distinguish them? In your example, you use "emailTexf" and "passTexf", but where are you getting those from? Happy to upvote and select this as the answer, if you can help me clarify that. Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:36
1
you need to replace them with your own variables , above is for an example
– Sh_Khan
Mar 8 at 16:37
Can you give a more complete example that explains what you're saying? Sorry, I'm not understanding. Thank you!
– RIP.Ben.Franklin
Mar 8 at 16:38
1
It's supposed you have outlets for the textfields to validate see edit
– Sh_Khan
Mar 8 at 16:40
Oh yeah! Of course! Got it! Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:47
add a comment |
Sure, that makes sense. How do I distinguish them? In your example, you use "emailTexf" and "passTexf", but where are you getting those from? Happy to upvote and select this as the answer, if you can help me clarify that. Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:36
1
you need to replace them with your own variables , above is for an example
– Sh_Khan
Mar 8 at 16:37
Can you give a more complete example that explains what you're saying? Sorry, I'm not understanding. Thank you!
– RIP.Ben.Franklin
Mar 8 at 16:38
1
It's supposed you have outlets for the textfields to validate see edit
– Sh_Khan
Mar 8 at 16:40
Oh yeah! Of course! Got it! Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:47
Sure, that makes sense. How do I distinguish them? In your example, you use "emailTexf" and "passTexf", but where are you getting those from? Happy to upvote and select this as the answer, if you can help me clarify that. Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:36
Sure, that makes sense. How do I distinguish them? In your example, you use "emailTexf" and "passTexf", but where are you getting those from? Happy to upvote and select this as the answer, if you can help me clarify that. Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:36
1
1
you need to replace them with your own variables , above is for an example
– Sh_Khan
Mar 8 at 16:37
you need to replace them with your own variables , above is for an example
– Sh_Khan
Mar 8 at 16:37
Can you give a more complete example that explains what you're saying? Sorry, I'm not understanding. Thank you!
– RIP.Ben.Franklin
Mar 8 at 16:38
Can you give a more complete example that explains what you're saying? Sorry, I'm not understanding. Thank you!
– RIP.Ben.Franklin
Mar 8 at 16:38
1
1
It's supposed you have outlets for the textfields to validate see edit
– Sh_Khan
Mar 8 at 16:40
It's supposed you have outlets for the textfields to validate see edit
– Sh_Khan
Mar 8 at 16:40
Oh yeah! Of course! Got it! Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:47
Oh yeah! Of course! Got it! Thanks!
– RIP.Ben.Franklin
Mar 8 at 16:47
add a comment |
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You can't add more parameters. And there is no need. You are already told which text field is affected.
– rmaddy
Mar 7 at 21:23