update pick state when gallery refresh

lib/src/provider/selected_provider.dart

+import 'dart:async';
+
 import 'package:photo_manager/photo_manager.dart';
 
 abstract class SelectedProvider {
   }
 
   void sure();
+
+  Future checkPickImageEntity() async {
+    List<AssetEntity> notExistsList = [];
+    for (var entity in selectedList) {
+      var exists = await entity.exists;
+      if (!exists) {
+        notExistsList.add(entity);
+      }
+    }
+
+    selectedList.removeWhere((e) {
+      return notExistsList.contains(e);
+    });
+  }
 }

lib/src/ui/page/photo_main_page.dart

   void _onGalleryChange(AssetPathEntity assetPathEntity) {
     _currentPath = assetPathEntity;
 
-    _currentPath.assetList.then((v) {
+    _currentPath.assetList.then((v)async {
       _sortAssetList(v);
       list.clear();
       list.addAll(v);
       scrollController.jumpTo(0.0);
+      await checkPickImageEntity();
       setState(() {});
     });
   }
     // Not deleted
     _onGalleryChange(this.currentPath);
   }
+
 }

pubspec.lock

       name: photo_manager
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.3.0"
+    version: "0.3.1"
   quiver:
     dependency: transitive
     description:

pubspec.yaml

 name: photo
 description: image picker, multi picker support video / icloud asset ,use flutter as ui, if you want to build custom ui,you just use photo_manager.
-version: 0.3.0
+version: 0.3.1
 author: caijinglong<cjl_spy@163.com>
 homepage: https://github.com/CaiJingLong/flutter_photo
 
   flutter:
     sdk: flutter
 
-  photo_manager: ^0.3.0
+  photo_manager: ^0.3.1
   # photo_manager:
   #   git:
   #     url: https://github.com/CaiJingLong/flutter_photo_manager.git