Parse showKey before precache

Author: wh201906

lib/pages/image_view/controller/view_controller.dart

@@ -568,6 +568,19 @@ class ViewExtController extends GetxController {
  await _galleryPageController?.loadImagesForSer(itemSer);
  }
 
+ var needShowKey =
+ vState.pageState?.galleryProvider?.showKey?.isEmpty ?? true;
+ 
+ if (needShowKey) {
+ // fetchAndParserImageInfo() then ehPrecacheImages()
+ // make sure showKey is parsed before ehPrecacheImages()
+ image = await _galleryPageController?.fetchAndParserImageInfo(
+ itemSer,
+ cancelToken: vState.getMoreCancelToken,
+ changeSource: changeSource,
+ );
+ }
+
  GalleryPara.instance
  .ehPrecacheImages(
  imageMap: _galleryPageStat?.imageMap,
@@ -582,11 +595,16 @@ class ViewExtController extends GetxController {
  }
  });
 
- image = await _galleryPageController?.fetchAndParserImageInfo(
+ if (!needShowKey) {
+ // ehPrecacheImages() then fetchAndParserImageInfo()
+ // the original logic
+ image = await _galleryPageController?.fetchAndParserImageInfo(
  itemSer,
  cancelToken: vState.getMoreCancelToken,
  changeSource: changeSource,
- );
+ );
+ }
+
  }
 
  return image;