Struct LengthLimitingTextInputFormatter 

pub struct LengthLimitingTextInputFormatter {
    pub max_length: Option<i32>,
    pub max_length_enforcement: Option<MaxLengthEnforcement>,
}

A TextInputFormatter that prevents the insertion of more characters than allowed.

Fields

max_length: Option<i32>

The limit on the number of user-perceived characters that this formatter will allow.

max_length_enforcement: Option<MaxLengthEnforcement>

Determines how the max_length limit should be enforced.

Implementations

impl LengthLimitingTextInputFormatter

pub fn new(max_length: Option<i32>) -> LengthLimitingTextInputFormatter

Creates a formatter that prevents the insertion of more characters than a limit.

pub fn max_length_enforcement(self, value: MaxLengthEnforcement) -> Self

Dart LengthLimitingTextInputFormatter(maxLengthEnforcement:).

pub fn get_default_max_length_enforcement( platform: Option<TargetPlatform>, ) -> MaxLengthEnforcement

Returns a MaxLengthEnforcement that follows the specified platform’s convention.

pub fn truncate(value: &TextEditingValue, max_length: i32) -> TextEditingValue

Truncate the given TextEditingValue to max_length Unicode scalar values.

Trait Implementations

impl TextInputFormatter for LengthLimitingTextInputFormatter

fn format_edit_update( &self, old_value: &TextEditingValue, new_value: &TextEditingValue, ) -> TextEditingValue

Called when text is being typed or cut/copy/pasted in the EditableText.