update processing

lib/pages/widgets/multi_img_controller.dart

@@ -5,6 +5,7 @@ import 'display_image_source.dart';
 
 class MultiImgController {
   List<String> imageUrls = [];
+  List<File> imageFiles = [];
   List<DisplayImageSource> addedFiles = [];
   List<DisplayImageSource> removedFiles = [];
 
@@ -29,6 +30,22 @@ class MultiImgController {
     }
   }
 
+  set setImageFiles(List<File> imageFiles) {
+    if (imageFiles == null) {
+      return;
+    }
+
+    fileContainers.clear();
+
+    this.imageFiles = imageFiles;
+    imageFiles.forEach((e) {
+      fileContainers.add(DisplayImageSource(file: e));
+    });
+    if (callback != null) {
+      callback();
+    }
+  }
+
   void onChange(CallBack callBack) {
     this.callback = callBack;
   }
@@ -51,11 +68,22 @@ class MultiImgController {
     if (imageUrls.contains(fileContainer.url)) {
       removedFiles.add(fileContainer);
     }
+
+    if (imageFiles.contains(fileContainer.file)) {
+      this.imageFiles.remove(fileContainer.file);
+    }
+
     if (callback != null) {
       callback();
     }
   }
 
+  List<File> get getUpdatedFile {
+    List<File> _addfiles = getAddedFile;
+    this.imageFiles.addAll(_addfiles);
+    return this.imageFiles;
+  }
+
   List<File> get getAddedFile {
     return addedFiles.map((e) => e.file).toList();
   }