To be notified when the text changes, listen to the controller using the addListener() method using the following steps:
Read moreWhat is TextField flutter?
Text fields allow users to type text into an app . They are used to build forms, send messages, create search experiences, and more. In this recipe, explore how to create and style text fields. Flutter provides two text fields: TextField and TextFormField .
Read moreWhat is the use of text editing controller in flutter?
TextEditingController class Null safety. A controller for an editable text field . Whenever the user modifies a text field with an associated TextEditingController, the text field updates value and the controller notifies its listeners.
Read moreHow do I get text from controller flutter?
Another way to retrieve text is by using the controller.
Read moreHow do you change the value of TextField in Flutter?
“how to change the value of a textformfield flutter” Code Answer
Read moreHow do you assign initial value to TextField in Flutter?
Solution 1 : Using Controller TextEditingController
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