BlacklistingTextInputFormatter class

A TextInputFormatter that prevents the insertion of blacklisted characters patterns.

Instances of blacklisted characters found in the new TextEditingValues will be replaced with the replacementString which defaults to the empty string.

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

BlacklistingTextInputFormatter(Pattern blacklistedPattern, { String replacementString: '' })
Creates a formatter that prevents the insertion of blacklisted characters patterns. [...]

Properties

blacklistedPattern Pattern
A Pattern to match and replace incoming TextEditingValues.
final
replacementString String
String used to replace found patterns.
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

singleLineFormatter BlacklistingTextInputFormatter
A BlacklistingTextInputFormatter that forces input to be a single line.
final