Flutter Tutorial - Value Widgets #19 Text Field

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A material design text field.

A text field lets the user enter text, either with hardware keyboard or with an onscreen keyboard.

The text field calls the onChanged callback whenever the user changes the text in the field. If the user indicates that they are done typing in the field (e.g., by pressing a button on the soft keyboard), the text field calls the onSubmitted callback.

To control the text that is displayed in the text field, use the controller. For example, to set the initial value of the text field, use a controller that already contains some text. The controller can also control the selection and composing region (and to observe changes to the text, selection, and composing region).

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