[bug] 修复删除城市背景不更新问题

Signed-off-by: xiaweizi <1012126908@qq.com>

Author: xiaweizi

lib/app/utils/ota_utils.dart

@@ -50,7 +50,7 @@ class OTAUtils {
       int appCode = int.parse(otaData["data"]["appCode"]);
       var packageInfo = await PackageInfo.fromPlatform();
       var number = int.parse(packageInfo.buildNumber);
-      if (appCode >= number) {
+      if (appCode > number) {
         UmengAnalyticsPlugin.event(AnalyticsConstant.ota, label: "needOTA");
         showDialog(
             context: globalKey.currentContext,

lib/views/bg/weather_main_bg.dart

@@ -11,7 +11,6 @@ import 'package:flutter_dynamic_weather/model/city_model_entity.dart';
 import 'package:flutter_dynamic_weather/model/weather_model_entity.dart';
 import 'package:flutter_dynamic_weather/views/app/flutter_app.dart';
 import 'package:flutter_dynamic_weather/views/bg/weather_cloud_bg.dart';
-import 'package:flutter_dynamic_weather/views/bg/weather_color_bg.dart';
 import 'package:flutter_dynamic_weather/views/bg/weather_rain_snow_bg.dart';
 
 class WeatherMainBg extends StatefulWidget {
@@ -65,6 +64,9 @@ class _WeatherMainBgState extends State<WeatherMainBg>
     if (weatherTypes.isNotEmpty) {
       setState(() {
         _weatherTypes = weatherTypes;
+        if (_index >= _weatherTypes.length) {
+          _index = _weatherTypes.length - 1;
+        }
       });
     }
   }

lib/views/pages/home/main_app_bar.dart

@@ -26,6 +26,9 @@ class _MainAppBarState extends State<MainAppBar> {
     if (widget.cityModels == null || widget.cityModels.isEmpty) {
       return Container();
     }
+    if (_index >= widget.cityModels.length) {
+      _index = widget.cityModels.length - 1;
+    }
     int index = _index;
     if (index >= widget.cityModels.length) {
       index = _index - 1;