40 lines
1.1 KiB
Dart
40 lines
1.1 KiB
Dart
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import 'dart:math';
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import 'package:flutter/services.dart';
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class VersionUtils {
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static const MethodChannel _kChannel = MethodChannel('version');
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/// 应用安装
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static void install(String path) {
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_kChannel.invokeMethod<void>('install', {'path': path});
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}
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/// AppStore跳转
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static void jumpAppStore() {
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_kChannel.invokeMethod<void>('jumpAppStore');
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}
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static bool compareVersion(curV, reqV) {
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if (curV != null && reqV != null) {
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//将两个版本号拆成数字
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var arr1 = curV.split('.'), arr2 = reqV.split('.');
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int arr1Len = arr1.length;
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int arr2Len = arr2.length;
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int minLength = min(arr1Len, arr2Len), position = 0, diff = 0;
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// 依次比较版本号每一位大小，当对比得出结果后跳出循环（后文有简单介绍）
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while (position < minLength &&
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((diff = int.parse(arr1[position]) - int.parse(arr2[position])) ==
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0)) {
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position++;
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}
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diff = (diff != 0) ? diff : (arr1.length - arr2.length);
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//若curV大于reqV，则返回true
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return diff > 0;
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} else {
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//输入为空
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return false;
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}
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}
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}
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