隐藏删除符号

lib/utils/as_grid_image_view.dart

@@ -12,8 +12,7 @@ class AsGridImageView extends StatelessWidget {
   final void Function(dynamic value)? onDelete;
   final double? iconSize;
 
-  const AsGridImageView.fromFile(
-      {Key? key,
+  const AsGridImageView.fromFile({Key? key,
     required this.files,
     this.placeholder,
     this.onDelete,
@@ -21,8 +20,7 @@ class AsGridImageView extends StatelessWidget {
       : nets = null,
         super(key: key);
 
-  const AsGridImageView.fromNets(
-      {Key? key,
+  const AsGridImageView.fromNets({Key? key,
     required this.nets,
     this.placeholder,
     this.onDelete,
@@ -43,8 +41,10 @@ class AsGridImageView extends StatelessWidget {
         shrinkWrap: true,
         children: files == null
             ? nets!
-                .map((e) => GestureDetector(
-                      onTap: () => PhotoViewer.fromNet(
+            .map((e) =>
+            GestureDetector(
+              onTap: () =>
+                  PhotoViewer.fromNet(
                     context,
                     tag: e,
                     net: e,
@@ -56,14 +56,12 @@ class AsGridImageView extends StatelessWidget {
                     child: FadeInImage.assetNetwork(
                         placeholder: placeholder ?? '', image: e),
                   ),
-                          Positioned(
+                  if(onDelete != null) Positioned(
                       top: size / 2,
                       right: size / 2,
                       child: GestureDetector(
                         onTap: () {
-                                  if (onDelete == null) {
                           onDelete!(e);
-                                  }
                         },
                         child: Icon(
                           CupertinoIcons.xmark_circle_fill,
@@ -75,15 +73,14 @@ class AsGridImageView extends StatelessWidget {
             ))
             .toList()
             : files!
-                .map((e) => Stack(children: [
-                      Positioned(
+            .map((e) =>
+            Stack(children: [
+              if(onDelete != null) Positioned(
                   top: 0,
                   right: 0,
                   child: GestureDetector(
                     onTap: () {
-                              if (onDelete != null) {
                       onDelete!(e);
-                              }
                     },
                     child: Icon(
                       CupertinoIcons.xmark_circle_fill,
@@ -91,7 +88,8 @@ class AsGridImageView extends StatelessWidget {
                     ),
                   )),
               GestureDetector(
-                          onTap: () => PhotoViewer.fromFile(context,
+                  onTap: () =>
+                      PhotoViewer.fromFile(context,
                           tag: e.path, file: e),
                   child: Hero(tag: e.path, child: Image.file(e)))
             ]))