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