320 lines
8.6 KiB
Dart
Executable File
320 lines
8.6 KiB
Dart
Executable File
import 'dart:convert';
|
|
import 'dart:typed_data';
|
|
|
|
import 'package:crypto/crypto.dart';
|
|
import 'package:flutter/services.dart';
|
|
|
|
int listChangInt(List<int> list){
|
|
final int dataLen = (list[0] << 8) + list[1];
|
|
return dataLen;
|
|
}
|
|
|
|
List<int> intChangList(int count){
|
|
final List<int> intList = <int>[];
|
|
final double typeDouble = count / 256;
|
|
final int type1 = typeDouble.toInt();
|
|
final int type2 = count % 256;
|
|
intList.add(type1);
|
|
intList.add(type2);
|
|
return intList;
|
|
}
|
|
|
|
List<String> changeIntListToStringList(List<int> list){
|
|
final List<String> strList = <String>[];
|
|
for(int i = 0; i<list.length; i++)
|
|
{
|
|
strList.add(list[i].toRadixString(16));
|
|
}
|
|
return strList;
|
|
}
|
|
|
|
List<int> changeStringListToIntList(List<String> list){
|
|
final List<int> intList = <int>[];
|
|
for(int i = 0; i<list.length; i++)
|
|
{
|
|
intList.add(_hexToInt(list[i]));
|
|
}
|
|
return intList;
|
|
}
|
|
|
|
int _hexToInt(String hex) {
|
|
int val = 0;
|
|
final int len = hex.length;
|
|
for (int i = 0; i < len; i++) {
|
|
final int hexDigit = hex.codeUnitAt(i);
|
|
if (hexDigit >= 48 && hexDigit <= 57) {
|
|
val += (hexDigit - 48) * (1 << (4 * (len - 1 - i)));
|
|
} else if (hexDigit >= 65 && hexDigit <= 70) {
|
|
// A..F
|
|
val += (hexDigit - 55) * (1 << (4 * (len - 1 - i)));
|
|
} else if (hexDigit >= 97 && hexDigit <= 102) {
|
|
// a..f
|
|
val += (hexDigit - 87) * (1 << (4 * (len - 1 - i)));
|
|
} else {
|
|
throw FormatException("Invalid hexadecimal value");
|
|
}
|
|
}
|
|
return val;
|
|
}
|
|
|
|
String md5Crypto(List<int> data) {
|
|
final Digest dig = md5.convert(data);
|
|
final String keyStr = dig.toString();
|
|
return keyStr.substring(0, 16).toLowerCase();
|
|
}
|
|
|
|
// 获取固定长度的数组
|
|
List<int> getFixedLengthList(List<int> data, int length) {
|
|
for (int i = 0; i < length; i++) {
|
|
data.add(0);
|
|
}
|
|
return data;
|
|
}
|
|
|
|
//int ---> 指定长度的hex (如指定长度为6的情况,0x000001 0x001234, 0xefab23)
|
|
String intToFormatHex(int num, int length) {
|
|
final String hexString = num.toRadixString(16);
|
|
final String formatString = hexString.padLeft(length, "0");
|
|
return formatString;
|
|
}
|
|
|
|
String uint8ToHex(Uint8List byteArr) {
|
|
if (byteArr.isEmpty) {
|
|
return "";
|
|
}
|
|
final Uint8List result = Uint8List(byteArr.length << 1);
|
|
final List<String> hexTable = <String>[
|
|
'0',
|
|
'1',
|
|
'2',
|
|
'3',
|
|
'4',
|
|
'5',
|
|
'6',
|
|
'7',
|
|
'8',
|
|
'9',
|
|
'A',
|
|
'B',
|
|
'C',
|
|
'D',
|
|
'E',
|
|
'F'
|
|
]; //16进制字符表
|
|
for (int i = 0; i < byteArr.length; i++) {
|
|
final int bit = byteArr[i]; //取传入的byteArr的每一位
|
|
int index = bit >> 4 & 15; //右移4位,取剩下四位
|
|
final int i2 = i << 1; //byteArr的每一位对应结果的两位,所以对于结果的操作位数要乘2
|
|
result[i2] = hexTable[index].codeUnitAt(0); //左边的值取字符表,转为Unicode放进resut数组
|
|
index = bit & 15; //取右边四位
|
|
result[i2 + 1] =
|
|
hexTable[index].codeUnitAt(0); //右边的值取字符表,转为Unicode放进resut数组
|
|
}
|
|
return String.fromCharCodes(result); //Unicode转回为对应字符,生成字符串返回
|
|
}
|
|
|
|
//TODO:int->两个字节 List 低字节在前，高字节在后(大端存储)=>嵌入式小端接收(协议用到)
|
|
|
|
int byteInt8(List<int> dataDetail, int index) => _toInt8(dataDetail[index]);
|
|
int _toInt8(int value) {
|
|
final ByteBuffer buffer = Int8List(4).buffer;
|
|
final ByteData bData = ByteData.view(buffer);
|
|
bData.setInt8(0, value);
|
|
return bData.getInt8(0);
|
|
}
|
|
|
|
int byteInt16(List<int> dataDetail, int index) => _byteInt16(dataDetail, index);
|
|
int _byteInt16(List<int> dataDetail, int index) {
|
|
if (checkListIndex(dataDetail, index, 2)) {
|
|
return 0;
|
|
}
|
|
|
|
final int value = (dataDetail[index + 1] & 0xff) << 8 | (dataDetail[index] & 0xff);
|
|
return _toInt16(value);
|
|
}
|
|
|
|
int _toInt16(int value) {
|
|
final ByteBuffer buffer = Int16List(1).buffer;
|
|
final ByteData bData = ByteData.view(buffer);
|
|
bData.setInt16(0, value);
|
|
final int outputValue = bData.getInt16(0);
|
|
return outputValue;
|
|
}
|
|
|
|
int byteInt32(List<int> dataDetail, int index) => _byteInt32(dataDetail, index);
|
|
int _byteInt32(List<int> dataDetail, int index) {
|
|
if (checkListIndex(dataDetail, index, 4)) {
|
|
return 0;
|
|
}
|
|
final int value = (0xFF & dataDetail[(index + 3)]) << 24 |
|
|
(0xFF & dataDetail[index + 2]) << 16 |
|
|
(0xFF & dataDetail[index + 1]) << 8 |
|
|
0xFF & dataDetail[index];
|
|
return _toInt32(value);
|
|
}
|
|
|
|
int _toInt32(int value) {
|
|
final ByteBuffer buffer = Int32List(2).buffer;
|
|
final ByteData bData = ByteData.view(buffer);
|
|
bData.setInt32(0, value);
|
|
final int outputValue = bData.getInt32(0);
|
|
return outputValue;
|
|
}
|
|
|
|
List<int> intToInt8List(int value) => <int>[value];
|
|
|
|
List<int> intToByte2ListHigh(int value) => <int>[value, value >> 8];
|
|
|
|
//TODO:int->4个字节List 低字节在前，高字节在后(大端存储) 1byte = 8bit
|
|
List<int> intToByte4ListHigh(int value) =>
|
|
<int>[value, value >> 8, value >> 16, value >> 24];
|
|
|
|
int byteUInt8(List<int> dataDetail, int index) => _toUInt8(dataDetail[index]);
|
|
int _toUInt8(int value) {
|
|
final ByteBuffer buffer = Int8List(1).buffer;
|
|
final ByteData bData = ByteData.view(buffer);
|
|
bData.setInt8(0, value);
|
|
return bData.getUint8(0);
|
|
}
|
|
|
|
int byteUInt16(List<int> dataDetail, int index) =>
|
|
_byteUInt16(dataDetail, index);
|
|
int _byteUInt16(List<int> dataDetail, int index) {
|
|
if (checkListIndex(dataDetail, index, 2)) {
|
|
return 0;
|
|
}
|
|
final int value = (dataDetail[index + 1]) << 8 | dataDetail[index];
|
|
return _toUInt16(value);
|
|
}
|
|
|
|
int _toUInt16(int value) {
|
|
final ByteBuffer buffer = Uint16List(2).buffer;
|
|
final ByteData bData = ByteData.view(buffer);
|
|
bData.setInt16(0, value);
|
|
return bData.getUint16(0);
|
|
}
|
|
|
|
int byteUInt32(List<int> dataDetail, int index) =>
|
|
_byteUInt32(dataDetail, index);
|
|
|
|
int _byteUInt32(List<int> dataDetail, int index) {
|
|
if (checkListIndex(dataDetail, index, 4)) {
|
|
return 0;
|
|
}
|
|
final int value = (0xFF & dataDetail[(index + 3)]) << 24 |
|
|
(0xFF & dataDetail[index + 2]) << 16 |
|
|
(0xFF & dataDetail[index + 1]) << 8 |
|
|
0xFF & dataDetail[index];
|
|
return _toUInt32(value);
|
|
}
|
|
|
|
int _toUInt32(int value) {
|
|
final ByteBuffer buffer = Int32List(2).buffer;
|
|
final ByteData bData = ByteData.view(buffer);
|
|
bData.setInt32(0, value);
|
|
final int outputValue = bData.getUint32(0);
|
|
return outputValue;
|
|
}
|
|
|
|
bool checkListIndex(List<int> dataDetail, int index, int offsetLength) {
|
|
if (dataDetail == null) {
|
|
return true;
|
|
}
|
|
final int len = dataDetail.length;
|
|
final bool result = index + offsetLength > len;
|
|
if (result) {}
|
|
return result;
|
|
}
|
|
|
|
int checkSum(List<int> data) {
|
|
int sum = 0;
|
|
for (final int v in data) {
|
|
sum ^= v;
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
Future<List<int>> loadAssetsFile(String assetsPath) async {
|
|
final ByteData byteData = await rootBundle.load(assetsPath);
|
|
return byteData.buffer.asUint8List().toList();
|
|
}
|
|
|
|
//获取截取后的数组
|
|
List<List<T>> splitList<T>(List<T> list, int len) {
|
|
if (len <= 1) {
|
|
return <List<T>>[list];
|
|
}
|
|
|
|
final List<List<T>> result = <List<T>>[];
|
|
int index = 1;
|
|
|
|
while (true) {
|
|
if (index * len < list.length) {
|
|
final List<T> temp = list.skip((index - 1) * len).take(len).toList();
|
|
result.add(temp);
|
|
index++;
|
|
continue;
|
|
}
|
|
final List<T> temp = list.skip((index - 1) * len).toList();
|
|
result.add(temp);
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
//TODO:int->两个字节 List 高字节在前，低字节在后(小端存储) 本工程只有配置 WiFi用到的!!!!
|
|
List<int> intToByte2ListLow(int value) => <int>[value >> 8, value];
|
|
|
|
String radixHex16String(List<int> codeUnits) {
|
|
String result = '';
|
|
for (final int value in codeUnits) {
|
|
result += value.toRadixString(16).padLeft(2, '0');
|
|
}
|
|
return result;
|
|
}
|
|
|
|
String radixHex16StringTo2String(List<int> codeUnits) {
|
|
String result = '';
|
|
codeUnits.forEach((int value) {
|
|
result += int.parse(value.toRadixString(16).padLeft(2, '0'),radix: 16).toRadixString(2);
|
|
});
|
|
return result;
|
|
}
|
|
|
|
String asciiString(List<int> codeUnits) {
|
|
String result = '';
|
|
for (final int value in codeUnits) {
|
|
result += String.fromCharCode(value);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
String utf8String(List<int> codeUnits) {
|
|
codeUnits.reversed;
|
|
final List<int> uniqueList = <int>[];
|
|
for (int i = 0; i < codeUnits.length; i++) {
|
|
if (codeUnits[i] != 0) {
|
|
uniqueList.add(codeUnits[i]);
|
|
}
|
|
}
|
|
uniqueList.reversed;
|
|
return utf8.decode(uniqueList).toString();
|
|
}
|
|
|
|
bool compareTwoList({List<int>? list1, List<int>? list2}) {
|
|
if (list1!.length != list2!.length) {
|
|
return false;
|
|
}
|
|
final int ctn = list1.length;
|
|
for (int i = 0; i < ctn; i++) {
|
|
final int v1 = list1[i];
|
|
final int v2 = list2[i];
|
|
if (v1 != v2) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
List<int> encodeStringToInt(String input) => utf8.encode(input);
|