How to Clear the Entered Textfield When the User Taps on the Button

How to clear the Entered textfield when the user taps on the button?

swift

create the IBOutletCollections or add all your textfield to one array for e.g

 @IBOutlet var storeAllTexts: [UITextField]!

on your button action method, call the following

   storeAllTexts.forEach { $0.text = "" }

objective C

create the IBOutletCollections

 @property (nonatomic, strong) IBOutletCollection(UITextField) NSArray *storeAllTexts;

on your button action

 for (UITextField *getCurrentText in self.storeAllTexts) {
  getCurrentText.text = @"";
}

for sample your get the SO duplicate answer

How do I clear my UITextField's text when I tap on it again?

I can think in three solutions for your problem:

Option 1

Clear the TextField everytime you touch it

- (void)textFieldDidBeginEditing:(UITextField *)textField {

    if (textField == self.numberToAdd) {
        self.numberToAdd1.text = @"";
    }
}

Option 2

Clear the TextField when you touch it, only if you already calculated the number.

@property (nonatomic) BOOL calculateDone;

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.calculateDone = false;
}

- (IBAction)calculate:(id)sender {

    //sum label number and textField number
    int sum = [self.label.text intValue] + [self.numberToAdd.text intValue];
    //set label
    self.label.text = [NSString stringWithFormat:@"%d", sum];

    // sum done true
    self.calculateDone = true;
}

- (void)textFieldDidBeginEditing:(UITextField *)textField {

    if (textField == self.numberToAdd)
    {
        if (self.calculateDone)
        {
            self.numberToAdd.text = @"";
            self.calculateDone = false;
        }
    }
}

Option 3

Clear the TextField when you click calculate button

- (IBAction)calculate:(id)sender {

    //sum label number and textField number
    int sum = [self.label.text intValue] + [self.numberToAdd.text intValue];
    //set label
    self.label.text = [NSString stringWithFormat:@"%d", sum];

    //reset textField
    self.numberToAdd.text = @"";

}

You can also check the text entered in the TextField, because you only wants numbers in the TextField, right?.

@property (strong, nonatomic) NSString *urlRegEx;
@property (strong, nonatomic) NSPredicate *urlRegExTest;

//This Regex accepts negative and positive numbers
self.urlRegEx = @"((-)?[0-9]*)";
self.urlRegExTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", self.urlRegEx];


- (IBAction)calculate:(id)sender {

    // if text is a valid Number
    if ([self.urlRegExTest evaluateWithObject:self.numberToAdd.text]) {

        int sum = [self.label.text intValue] + [self.numberToAdd.text intValue];
        self.label.text = [NSString stringWithFormat:@"%d", sum];
    }

}

You can download an example code here.

How to create TextField with Clear button using TextEditingController?

Instead of suffixIcon, you suffix. This way the clear button will not be visible if textformfield is not in focus and will display the icon when you tap on the field. Also, when you will tap on the clear icon after typing something, it'll clear the field. Working sample code below:

TextFormField(
      controller: _firstNameController,
                      textAlign: TextAlign.left,
                      cursorColor: Colors.white,
                      onChanged: (value) {

                      },
                      style: TextStyle(color: Colors.white),
                      decoration: InputDecoration(    
                        labelText: 'First Name',
                        suffix: GestureDetector(
                        onTap: () {
                          _firstNameController.clear();
                        },
                          child: Icon(Icons.clear)
                        )
                      ),
                    ),

Hope this helps.

Clear text field box when tapped on iPhone

I know you've already got your answer, but there is an alternative using UITextField's delegate method textFieldDidBeginEditing: --

     - (void)textFieldDidBeginEditing:(UITextField *)textField {

textField.text = @"";

}

SwiftUI: Add ClearButton to TextField

Use ZStack to position the clear button appear inside the TextField.

TextField("Some Text" , text: $someBinding).modifier(ClearButton(text: $someBinding))

struct ClearButton: ViewModifier
{
    @Binding var text: String

    public func body(content: Content) -> some View
    {
        ZStack(alignment: .trailing)
        {
            content

            if !text.isEmpty
            {
                Button(action:
                {
                    self.text = ""
                })
                {
                    Image(systemName: "delete.left")
                        .foregroundColor(Color(UIColor.opaqueSeparator))
                }
                .padding(.trailing, 8)
            }
        }
    }
}

How to clear the text field automatically

Use this method,

If you want to manually clear the text field use this code:

textField.text = ""

If you want the text field to empty when you begin editing, use the delegate method below:

func textFieldDidBeginEditing(textField: UITextField) {
    textField.text = ""
}

If you are using multiple text fields, use the method below:

func textFieldDidBeginEditing(textField: UITextField) { 
    if (textField == oneTextField) {
       textField.text = ""
    } 
    else if (textField == anotherTextField) {
       // Perform any other operation
    } 
}

Is there a way to reset the value of textfield by clicking the button? [Swift]

you could simply do this inside your IBAction func

yourTextFieldOutlet.text = ""

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