✨ Support HEIC/HEIF image type.

Author: AlexV525

lib/src/provider/asset_entity_image_provider.dart

@@ -31,13 +31,17 @@ class AssetEntityImageProvider extends ImageProvider<AssetEntityImageProvider> {
   /// 选择载入原数据还是缩略图数据
   final bool isOriginal;
 
+  /// File type for the image asset, use it for some special type detection.
+  /// 图片资源的类型，用于某些特殊类型的判断
   ImageFileType _imageFileType;
 
   ImageFileType get imageFileType => _imageFileType ?? _getType();
 
   @override
   ImageStreamCompleter load(
-      AssetEntityImageProvider key, DecoderCallback decode) {
+    AssetEntityImageProvider key,
+    DecoderCallback decode,
+  ) {
     return MultiFrameImageStreamCompleter(
       codec: _loadAsync(key, decode),
       scale: key.scale,
@@ -56,11 +60,17 @@ class AssetEntityImageProvider extends ImageProvider<AssetEntityImageProvider> {
   }
 
   Future<ui.Codec> _loadAsync(
-      AssetEntityImageProvider key, DecoderCallback decode) async {
+    AssetEntityImageProvider key,
+    DecoderCallback decode,
+  ) async {
     assert(key == this);
     Uint8List data;
     if (isOriginal ?? false) {
-      data = await key.entity.originBytes;
+      if (imageFileType == ImageFileType.heic) {
+        data = await (await key.entity.file).readAsBytes();
+      } else {
+        data = await key.entity.originBytes;
+      }
     } else {
       data = await key.entity.thumbDataWithSize(thumbSize, thumbSize);
     }

lib/src/widget/asset_picker.dart

@@ -662,22 +662,14 @@ class AssetPicker extends StatelessWidget {
                           } else if (asset.type == AssetType.video) {
                             type = SpecialAssetType.video;
                           }
-                          if (type != SpecialAssetType.heic) {
-                            loader = FadeImageBuilder(
-                              child: _succeedItem(
-                                context,
-                                index,
-                                state.completedWidget,
-                                specialAssetType: type,
-                              ),
-                            );
-                          } else {
-                            loader = Center(
-                              child: Text(
-                                Constants.textDelegate.heicNotSupported,
-                              ),
-                            );
-                          }
+                          loader = FadeImageBuilder(
+                            child: _succeedItem(
+                              context,
+                              index,
+                              state.completedWidget,
+                              specialAssetType: type,
+                            ),
+                          );
                           break;
                         case LoadState.failed:
                           loader = _failedItem;