In this example, we are going to display the alert dialog with the current value of the text field when the user taps on a button.
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To create a new TextEditingController , just call the constructor . You can call it without the parameter, which means the initial text is empty. Usually it’s stored as a state variable. Optionally you can also set the initial value by passing text parameter.14 Mar 2020
Read moreHow do I get value from TextEditingController?
Display the current value of the text field.
Read moreShould I dispose TextEditingController flutter?
Second, remember to dispose of the TextEditingController inside dispose() when it is no longer needed . This will ensure we discard any resources used by the object. There is no need to dispose of it while in use. Remember: the controller is not there to notify listeners of the changes inside the text input field.
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