DART

flutter textformfield decimal

keyboardType: TextInputType.numberWithOptions(decimal: true),
inputFormatters: [FilteringTextInputFormatter.allow(RegExp('[0-9.,]+')),],
onChanged: (value) => doubleVar = double.parse(value),

decimal place textfield flutter

TextFormField(
  keyboardType: TextInputType.numberWithOptions(decimal: true),
  inputFormatters: [
    FilteringTextInputFormatter.allow(RegExp(r'^d+.?d{0,2}')),
  ],
),

decimal place textfield flutter

TextFormField(
  keyboardType: TextInputType.numberWithOptions(decimal: true),
  inputFormatters: [
    FilteringTextInputFormatter.allow(RegExp(r'^d+.?d{0,2}')),
  ],
),

TextFormField(
    inputFormatters: [
        WhitelistingTextInputFormatter(RegExp(r'^d+.?d{0,2}')),
    ],
)