WhitelistingTextInputFormatter class

A TextInputFormatter that allows only the insertion of whitelisted characters patterns.

Since this formatter only removes characters from the text, it attempts to preserve the existing TextEditingValue.selection to values it would now fall at with the removed characters.

See also:

Inheritance

Constructors

WhitelistingTextInputFormatter(Pattern whitelistedPattern)
Creates a formatter that allows only the insertion of whitelisted characters patterns. [...]

Properties

whitelistedPattern Pattern
A Pattern to extract all instances of allowed characters. [...]
final
hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

formatEditUpdate(TextEditingValue oldValue, TextEditingValue newValue) TextEditingValue
Called when text is being typed or cut/copy/pasted in the EditableText. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toString() String
Returns a string representation of this object.
inherited

Operators

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

Static Properties

digitsOnly WhitelistingTextInputFormatter
A WhitelistingTextInputFormatter that takes in digits [0-9] only.
final