input_calculator

With Input Calculator widget you can add functionality of calculation to a TextField.

Themes

curve theme

flat theme

Usage

CalculatorTextField

...

CalculatorTextField(
  initialValue: _value,
  onSubmitted: (value) {
    _value = value;
    print('value: $_value');
  },
)

...

CalculatorTextFormField

...

CalculatorTextFormField(
  initialValue: _value,
  validator: (value) {
    if (value.isEmpty) {
      return 'Madatory field';
    }
    return null;
  }, 
  onSubmitted: (value) {
    _value = value;
    print('value: $_value');
  },
)

...

Let's customize it !

Calculator

• title: title to show on appbar.

• appBarBackgroundColor: appbar color.

• theme: allows two themes [CalculatorThemes.curve | CalculatorThemes.flat] (default: curve).

• operatorButtonColor: color operator button.

• operatorTextButtonColor: color text of operator button.

• normalButtonColor: color normal button.

• normalTextButtonColor: color text of normal button.

• doneButtonColor: color done button.

• doneTextButtonColor: color text of done button.

• allowNegativeResult: allow negative result (default: true).

TextField

• initialValue: initial value to show.

• inputDecoration: decotation of textField.

• valueFormat: format value of textField.