I am facing an error when i use backspace to remove all the content in the textfield.The error that i am getting is this: The following RangeError was thrown while handling a gesture: RangeError (end): Invalid value: Only valid value is 0: -1 and is there a way by which the "Rs." string remains in… Read More I am getting a range error in textfield when i remove all the elements form the textflield in my flutter code

I have TextFormField widget with username TextFormField( controller: usernameController, validator: (value) { if (value!.isEmpty) { return ‘username is empty’; } if (value.length <= 4) { return ‘passord id too short, min 4 characters’; } return null; }, decoration: const InputDecoration( hintText: ‘username’, border: OutlineInputBorder( borderSide: BorderSide(color: Colors.black))), ), But I want to take username to… Read More TextFormFied validate spacing

I have multiple pages, so when I enter one of them, the cursor should be automatically on input textfield, Doesnt matter how many textfields are there, I need to set on 1 INSTEAD OF THIS: THIS SHOULD BE: >Solution : TextField( autofocus: true, ),

I have 2 statefull class, first class contains TextFormField and button to validate the TextFormField. And the second class contains TextFormField. How to validate second TextFormField thats called in first class when tap the button? class FormValidation extends StatefulWidget { const FormValidation({Key key}) : super(key: key); @override _FormValidationState createState() => _FormValidationState(); } class _FormValidationState extends… Read More Validate TextFormField from another class

I am using TextFormField in my Flutter app to get the email address of users. Some email addresses are long and so, if I keep typing, it will go out of the box. See how the first few letters of the email in the image below are outside the box. Below is the code (just… Read More Automatically resize Flutter TextFormField content as the user is typing while keeping maxLines equal to 1