A FormField that contains a TextField.

This is a convenience widget that wraps a TextField widget in a FormField.

A Form ancestor is not required. The Form simply makes it easier to save, reset, or validate multiple fields at once. To use without a Form, pass a GlobalKey to the constructor and use GlobalKey.currentState to save or reset the form field.

When a controller is specified, it can be used to control the text being edited. Its content will be overwritten by initialValue (which defaults to the empty string) on creation and when reset is called.

For a documentation about the various parameters, see TextField.

See also:

Inheritance

Constructors

TextFormField({Key key, TextEditingController controller, String initialValue: '', FocusNode focusNode, InputDecoration decoration: const InputDecoration(), TextInputType keyboardType: TextInputType.text, TextStyle style, TextAlign textAlign: TextAlign.start, bool autofocus: false, bool obscureText: false, bool autocorrect: true, int maxLines: 1, FormFieldSetter<String> onSaved, FormFieldValidator<String> validator, List<TextInputFormatter> inputFormatters })
Creates a FormField that contains a TextField. [...]

Properties

controller TextEditingController
Controls the text being edited. [...]
final
autovalidate bool
If true, this form field will validate and update its error text immediately after every change. Otherwise, you must call FormFieldState.validate to validate. If part of a Form that autovalidates, this value will be ignored.
final, inherited
builder FormFieldBuilder<String>
Function that returns the widget representing this form field. It is passed the form field state as input, containing the current value and validation state of this field.
final, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
initialValue String
An optional value to initialize the form field to, or null otherwise.
final, inherited
key Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
onSaved FormFieldSetter<String>
An optional method to call with the final value when the form is saved via Form.save().
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
validator FormFieldValidator<String>
An optional method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
final, inherited

Methods

createState() → _TextFormFieldState
createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder description) → void
Add additional properties associated with the node. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toDiagnosticsNode({String name, DiagnosticsTreeStyle style }) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by toStringDeep. [...]
inherited
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns a string representation of this object.
inherited
toStringDeep({String prefixLineOne: '', String prefixOtherLines, DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns a string representation of this node and its descendants. [...]
inherited
toStringShallow({String joiner: ', ', DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns a one-line detailed description of the object. [...]
inherited
toStringShort() String
A short, textual description of this widget.
inherited

Operators

operator ==(other) bool
The equality operator. [...]
inherited