toInt method

int toInt(Uint8List bytes, { int start = 0, int? end, Endian endian = Endian.big, })

Return int value of supplied bytes

• start : starting position of bytes for conversion, default 0
• end : ending position of bytes for conversion, default bytes.length
• endian : Endian of conversion. Default Endian.big

Conversion length:

• 1: use int8 conversion
• 2: use int16 conversion
• 4: use int32 conversion
• 8: use int64 conversion

throw if conversion length not equal to 1, 2, 4, 6, 8

Implementation

int toInt(
  Uint8List bytes, {
  int start = 0,
  int? end,
  Endian endian = Endian.big,
}) {
  String debugPrefix = 'LazyExtUint8List.toInt()';
  try {
    end ??= bytes.length;
    var length = end - start;
    var byteData = ByteData.sublistView(bytes, start, end);
    int result = 0;
    switch (length) {
      case 1:
        result = byteData.getInt8(0);
        break;
      case 2:
        result = byteData.getInt16(0, endian);
        break;
      case 4:
        result = byteData.getInt32(0, endian);
        break;
      case 8:
        result = byteData.getInt64(0, endian);
        break;
      default:
        throw ('Byte list length must be 1, 2, 4, 8. Current:$length');
    }
    return result;
  } catch (e) {
    throw ('$debugPrefix:$e');
  }
}