CODE EXAMPLE FOR DART

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}')),
    ],
)