fix preview photo, delete photo in plot history

lib/presentation/custom_widgets/widget_media_picker.dart

 
   _WidgetItemMedia({required this.item, required this.deleteImage});
 
-  @override
-  Widget build(BuildContext context) {
-    return GestureDetector(
-        onTap: () {
-          print("Show preview image or video");
-        },
-        child: Stack(
-          alignment: Alignment.topRight,
-          children: <Widget>[
-            Positioned.fill(
-                child: item.isVideo ?? false
-                    ? VideoWidget(
-                        pathFile: item.pathFile ?? '',
-                        isServerFile: item.isServerFile,
-                        play: false,
-                      )
-                    : Container(
-                        margin: EdgeInsets.all(4.0),
-                        decoration: BoxDecoration(
-                          color: Colors.white,
-                          border: Border.all(color: Colors.grey),
-                          borderRadius: BorderRadius.all(
-                            Radius.circular(8.0),
+  void _showPhotoPreview(BuildContext context) {
+    if (item.isVideo ?? false) return;
+
+    showDialog(
+      context: context,
+      builder: (context) => Dialog(
+        backgroundColor: Colors.transparent,
+        insetPadding: EdgeInsets.all(20),
+        child: Container(
+          decoration: BoxDecoration(
+            color: Colors.white,
+            borderRadius: BorderRadius.circular(16),
+            boxShadow: [
+              BoxShadow(
+                color: Colors.black.withOpacity(0.1),
+                blurRadius: 10,
+                spreadRadius: 2,
+              ),
+            ],
+          ),
+          child: Stack(
+            children: [
+              Container(
+                constraints: BoxConstraints(
+                  maxHeight: MediaQuery.of(context).size.height * 0.7,
+                ),
+                child: ClipRRect(
+                  borderRadius: BorderRadius.circular(16),
+                  child: item.isServerFile
+                      ? CachedNetworkImage(
+                          imageUrl: item.pathFile ?? '',
+                          fit: BoxFit.contain,
+                          placeholder: (context, url) => Center(
+                            child: CircularProgressIndicator(),
                           ),
+                          errorWidget: (context, url, error) => Center(
+                            child: Icon(Icons.error, color: Colors.red),
+                          ),
+                        )
+                      : Image.file(
+                          File(item.pathFile ?? ''),
+                          fit: BoxFit.contain,
                         ),
-                        child: item.isServerFile
-                            ? CachedNetworkImage(
-                                placeholder: (context, url) => Icon(Icons.crop_original),
-                                imageUrl: item.pathFile ?? '',
-                              )
-                            : Image.file(File(item.pathFile ?? '')),
-                      )),
-            Positioned.fill(
-                top: -(120.0 - 36),
-                right: -(120.0 - 36),
-                child: IconButton(
-                    icon: Icon(
-                      Icons.delete,
-                      color: Colors.redAccent,
-                      size: 24,
+                ),
+              ),
+              Positioned(
+                top: 0,
+                right: 0,
+                child: Material(
+                  color: Colors.transparent,
+                  child: IconButton(
+                    icon: Icon(Icons.close, color: Colors.black),
+                    onPressed: () => Navigator.pop(context),
+                  ),
+                ),
+              )
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Stack(
+      alignment: Alignment.topRight,
+      children: <Widget>[
+        GestureDetector(
+          onTap: () => _showPhotoPreview(context),
+          child: Container(
+            width: 120,
+            height: 120,
+            child: item.isVideo ?? false
+                ? VideoWidget(
+                    pathFile: item.pathFile ?? '',
+                    isServerFile: item.isServerFile,
+                    play: false,
+                  )
+                : Container(
+                    margin: EdgeInsets.all(4.0),
+                    decoration: BoxDecoration(
+                      color: Colors.white,
+                      border: Border.all(color: Colors.grey),
+                      borderRadius: BorderRadius.all(
+                        Radius.circular(8.0),
+                      ),
                     ),
-                    onPressed: () {
-                      print("On tap delete media");
-                      deleteImage(item);
-                    }))
-          ],
-        ));
+                    child: item.isServerFile
+                        ? CachedNetworkImage(
+                            placeholder: (context, url) => Icon(Icons.crop_original),
+                            imageUrl: item.pathFile ?? '',
+                          )
+                        : Image.file(File(item.pathFile ?? '')),
+                  ),
+          ),
+        ),
+        Positioned(
+          top: 0,
+          right: 0,
+          child: Material(
+            color: Colors.transparent,
+            child: IconButton(
+              icon: Icon(
+                Icons.delete,
+                color: Colors.redAccent,
+                size: 24,
+              ),
+              onPressed: () {
+                print("On tap delete media");
+                deleteImage(item);
+              },
+            ),
+          ),
+        )
+      ],
+    );
   }
 }