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编码猿
2024-09-27 01:31:25 +08:00
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import 'dart:convert';
import 'package:convert/convert.dart';
import 'package:crypto/crypto.dart';
import 'dart:io';
import 'dart:math';
import 'package:path_provider/path_provider.dart';
import 'package:peach/config/_.dart';
import 'package:peach/utils/_.dart';
/*
* 工具函数主要给dart逻辑使用
*/
class Tool {
/// 按照指定下标将数组分割为二维数组
static List<List<T>> splitList<T>(List<T> list, int len) {
if (len <= 1) {
return [list];
}
List<List<T>> result = List();
int index = 1;
while (true) {
if (index * len < list.length) {
List<T> temp = list.skip((index - 1) * len).take(len).toList();
result.add(temp);
index++;
continue;
}
List<T> temp = list.skip((index - 1) * len).toList();
result.add(temp);
break;
}
return result;
}
/// 生成N位随机数
static String randomBit([int len = 15]) {
String scopeF = '123456789'; //首位
String scopeC = '0123456789'; //中间
String result = '';
for (int i = 0; i < len; i++) {
if (i == 0) {
result = scopeF[Random().nextInt(scopeF.length)];
} else {
result = result + scopeC[Random().nextInt(scopeC.length)];
}
}
return result;
}
/// 检查用户是否有权限打开【单手模式】
/// 权限规则:
/// 1对弹窗给的 androidid 进行 MD5 加密
/// 2在 com.example.untitled/files 文件夹中 用第一步的密文来创建文件
/// 3向文件中 写入 设备的 androidid
/// 通过验证,正常访问..
static Future<bool> checkIsOpen() async {
String androidId = Config.androidDeviceInfo.androidId;
Directory filesPath = await getExternalStorageDirectory();
File completePath = File("${filesPath.path}/${generateMd5(androidId)}");
if (completePath.existsSync()) {
String textMessage = await completePath.readAsString();
return textMessage == androidId ? true : false;
} else {
return false;
}
}
/*
* md5 加密
*/
static String generateMd5(String data) {
var content = new Utf8Encoder().convert(data);
var digest = md5.convert(content);
// 这里其实就是 digest.toString()
return hex.encode(digest.bytes);
}
/// 从本地读取用户信息
static Map userInfo() {
String username = SPreferences().getString("username");
String objectId = SPreferences().getString("objectId");
String createdAt = SPreferences().getString("createdAt");
String userType = SPreferences().getString("userType");
String userWeiXin = SPreferences().getString("userWeiXin");
Map info = new Map();
info.addAll({
'username': username,
'objectId': objectId,
'createdAt': createdAt,
'userType': userType,
'userWeiXin': userWeiXin,
});
return info;
}
/// 验证是否为合法的手机号
static bool isPhone(String str) {
return new RegExp('^((13[0-9])|(15[^4])|(166)|(17[0-8])|(18[0-9])|(19[8-9])|(147,145))\\d{8}\$').hasMatch(str);
}
}