Get input value from TextField in iOS alert in Swift

Question

I m trying to make an alert message with input  and then get the value from the input  I ve found many good tutorials how to make the input text field  but I can t get the value from the alert

User · Answer

In Swift5 ans Xcode 10  Add two textfields with Save and Cancel actions and read TextFields text data  func alertWithTF           Step   1     let alert   UIAlertController title   Great Title   message   Please input something   preferredStyle  UIAlertController Style alert         Step   2     let save   UIAlertAction title   Save   style   default     alertAction  in         let textField   alert textFields  0  as UITextField         let textField2   alert textFields  1  as UITextField         if textField text                       Read TextFields text data             print textField text               print  TF 1     textField text               else               print  TF 1 is Empty                         if textField2 text                     print textField2 text               print  TF 2     textField2 text               else               print  TF 2 is Empty                             Step   3       For first TF     alert addTextField    textField  in         textField placeholder    Enter your first name          textField textColor    red             For second TF     alert addTextField    textField  in         textField placeholder    Enter your last name          textField textColor    blue              Step   4     alert addAction save        Cancel action     let cancel   UIAlertAction title   Cancel   style   default     alertAction  in       alert addAction cancel        OR single line action       alert addAction UIAlertAction title   Cancel   style   default     alertAction  in         self present alert  animated true  completion  nil       For more explanation https   medium com  chan henryk alert-controller-with-text-field-in-swift-3-bda7ac06026c

User · Answer

Updated for Swift 3 and above     1  Create the alert controller  let alert   UIAlertController title   Some Title   message   Enter a text   preferredStyle   alert     2  Add the text field  You can configure it however you need  alert addTextField    textField  in     textField text    Some default text        3  Grab the value from the text field  and print it when the user clicks OK  alert addAction UIAlertAction title   OK   style   default  handler     weak alert      in     let textField   alert textFields  0     Force unwrapping because we know it exists      print  Text field    textField text            4  Present the alert  self present alert  animated  true  completion  nil      Swift 2 x  Assuming you want an action alert on iOS     1  Create the alert controller              var alert   UIAlertController title   Some Title   message   Enter a text   preferredStyle   Alert     2  Add the text field  You can configure it however you need  alert addTextFieldWithConfigurationHandler    textField  - gt  Void in     textField text    Some default text         3  Grab the value from the text field  and print it when the user clicks OK   alert addAction UIAlertAction title   OK   style   Default  handler     weak alert   action  - gt  Void in     let textField   alert textFields  0  as UITextField     println  Text field    textField text            4  Present the alert  self presentViewController alert  animated  true  completion  nil

User · Answer

Swift 3 4  You can use the below extension for your convenience   Usage inside a ViewController   showInputDialog title   Add number                   subtitle   Please enter the new number below                    actionTitle   Add                   cancelTitle   Cancel                   inputPlaceholder   New number                   inputKeyboardType   numberPad     input String   in     print  The new number is   input              The extension code   extension UIViewController       func showInputDialog title String    nil                           subtitle String    nil                           actionTitle String     Add                            cancelTitle String     Cancel                            inputPlaceholder String    nil                           inputKeyboardType UIKeyboardType   UIKeyboardType default                           cancelHandler    UIAlertAction  - gt  Swift Void     nil                           actionHandler      text  String   - gt  Void     nil             let alert   UIAlertController title  title  message  subtitle  preferredStyle   alert          alert addTextField    textField UITextField  in             textField placeholder   inputPlaceholder             textField keyboardType   inputKeyboardType                   alert addAction UIAlertAction title  actionTitle  style   default  handler     action UIAlertAction  in             guard let textField    alert textFields  first else                   actionHandler  nil                  return                           actionHandler  textField text                      alert addAction UIAlertAction title  cancelTitle  style   cancel  handler  cancelHandler            self present alert  animated  true  completion  nil

[ios] Get input value from TextField in iOS alert in Swift

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