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attachListener method

void attachListener (Function setter)

Implementation​

void attachListener(Function setter) {
  donationField.addListener(() {
    if (donationField.hasFocus) {
      setter(() {
        bottomSheetHeight = SizeConfig.screenHeight! * 0.8725;
      });
    } else {
      Future.delayed(const Duration(milliseconds: 300), () {
        {
          setter(() {
            bottomSheetHeight = SizeConfig.screenHeight! * 0.68;
          });
        }
      });
    }
  });
}