优化AI图生图功能

lib/pages/ai-draw-image-result/controller.dart

@@ -189,12 +189,21 @@ class AIDrawImageResultController extends GetxController {
         }
         Map<String, dynamic> jsonMap = jsonDecode("${event.data}");
         final model = MidJourneyImageModel.fromJson(jsonMap);
+        final progressStr = model.progressStr ?? "";
+        if (progressStr.isNotEmpty) {
+          showProgressView.value = false;
+          EasyLoading.showError("AI生成图片错误：$progressStr");
+          return;
+        }
         if (model.response?.buttonMessageId != null) {
           _buttonMessageId = model.response?.buttonMessageId ?? "";
         }
         progress.value = model.progress ?? 0;
         if (model.progress == 100) {
           showProgressView.value = false;
+          if (model.response?.imageUrl == null) {
+            EasyLoading.showError("AI生成图片错误：imageUrl为null");
+          }
         }
         final progressBase64 = model.progressBase64 ?? "";
         if (model.response?.imageUrl != null) {

lib/pages/ai-draw-image-result/model.dart

@@ -26,13 +26,15 @@ class MidJourneyModel {
 class MidJourneyImageModel {
   int? progress;
   String? progressImageUrl;
+  String? progressStr;
   String? progressBase64;
   MidJourneyImageResponse? response;
 
-  MidJourneyImageModel({this.progress, this.progressImageUrl, this.response, this.progressBase64,});
+  MidJourneyImageModel({this.progress, this.progressStr, this.progressImageUrl, this.response, this.progressBase64,});
 
   MidJourneyImageModel.fromJson(Map<String, dynamic> json) {
     progress = json['progress'];
+    progressStr = json['progressStr'];
     progressImageUrl = json['progressImageUrl'];
     response = json['response'] != null
         ? new MidJourneyImageResponse.fromJson(json['response'])
@@ -43,6 +45,7 @@ class MidJourneyImageModel {
   Map<String, dynamic> toJson() {
     final Map<String, dynamic> data = new Map<String, dynamic>();
     data['progress'] = this.progress;
+    data['progressStr'] = this.progressStr;
     data['progressImageUrl'] = this.progressImageUrl;
     if (this.response != null) {
       data['response'] = this.response?.toJson();