39 lines
1.5 KiB
Dart
39 lines
1.5 KiB
Dart
import 'dart:io';
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import 'package:get/get.dart';
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import '../config/config.dart';
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import '../hj_model/splash/domain_source_model.dart';
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///启动页 /ping/domain 下发的当前平台版本信息，冷启动必刷新，不落磁盘
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CheckVersionInfo? _remoteVersion;
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///启动页拿到配置后调一次，筛出当前平台那条存内存
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void saveVersion(List<CheckVersionInfo> versions) {
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final os = Platform.operatingSystem;
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_remoteVersion = versions.firstWhereOrNull((e) => e.platform?.toLowerCase() == os);
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}
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///有新版本则返回版本信息，已是最新 / 没配置都返回 null；只读内存，不发请求
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CheckVersionInfo? checkUpdate() {
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final info = _remoteVersion;
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if (info == null) return null;
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return compareVersion(Config.innerVersion, info.verName ?? '') ? info : null;
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}
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///比较版本号：newVersion 比 version 新则返回 true（需更新）
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bool compareVersion(String version, String newVersion) {
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List<String> localArr = version.split(".");
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List<String> newArr = newVersion.split(".");
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//逐位比较，最多比较前 3 段（major.minor.patch），按两者较短的段数取，避免越界
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int count = newArr.length < localArr.length ? newArr.length : localArr.length;
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if (count > 3) count = 3;
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for (int i = 0; i < count; i++) {
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int newCode = int.tryParse(newArr[i]) ?? 0;
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int localCode = int.tryParse(localArr[i]) ?? 0;
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if (newCode > localCode) return true;
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if (newCode < localCode) return false;
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}
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return false;
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}
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