onChanged. Called when the user initiates a change to the TextField’s value: when they have inserted or deleted text . This callback doesn’t run when the TextField’s text is changed programmatically, via the TextField’s controller.
Read moreHow do I use a controller with TextField in flutter?
Listen to the controller for changes.
Read moreWhat is text controller flutter?
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. … A TextEditingController can also be used to provide an initial value for a text field.
Read moreHow do you get the TextField value in flutter?
Display the current value of the text field.
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