初始化

lib/widgets/version/check_version_update.dart

@@ -0,0 +1,39 @@
+import 'package:app/core/config/global.dart';
+import 'package:app/core/event/event_bus.dart';
+import 'package:app/core/event/global_event.dart';
+import 'package:app/core/utils/system.dart';
+import 'package:app/data/api/common_api.dart';
+import 'package:package_info_plus/package_info_plus.dart';
+
+///检查版本更新
+void checkUpdate() async {
+  PackageInfo packageInfo = await PackageInfo.fromPlatform();
+  var versionRes = await getAppVersionApi(isIos: !isAndroid());
+  //判断版本是不是小于最低版本，如果不是，不弹更新
+  bool isMin = _compareVersions(packageInfo.version, versionRes.lowVersion) == -1;
+  if (!isMin) {
+    return;
+  }
+  Future.delayed(const Duration(seconds: 2), () async {
+    EventBus().publish(VersionUpdateEvent(versionRes));
+  });
+}
+
+///比较版本号
+/// 1:表示当前版本号比传入的版本号高
+/// -1：表示当前版本号比传入的版本号低
+/// 0 表示版本号相同
+int _compareVersions(String version1, String version2) {
+  List<String> v1Parts = version1.split('.');
+  List<String> v2Parts = version2.split('.');
+  int length = v1Parts.length > v2Parts.length ? v1Parts.length : v2Parts.length;
+
+  for (int i = 0; i < length; i++) {
+    int v1Part = i < v1Parts.length ? int.tryParse(v1Parts[i]) ?? 0 : 0;
+    int v2Part = i < v2Parts.length ? int.tryParse(v2Parts[i]) ?? 0 : 0;
+
+    if (v1Part > v2Part) return 1;
+    if (v1Part < v2Part) return -1;
+  }
+  return 0;
+}