QrCode constructor
Implementation
QrCode(this.typeNumber, this.errorCorrectLevel)
: moduleCount = typeNumber * 4 + 17,
_modules = <List<bool?>>[] {
RangeError.checkValueInInterval(typeNumber, 1, 40, 'typeNumber');
RangeError.checkValidIndex(
errorCorrectLevel, QrErrorCorrectLevel.levels, 'errorCorrectLevel');
for (var row = 0; row < moduleCount; row++) {
_modules.add(List<bool?>.filled(moduleCount, null));
}
}