feat:增加闪灵上传图片功能

lib/widgets/flisp_form.dart

@@ -1,5 +1,7 @@
+import 'package:file_picker/file_picker.dart';
 import 'package:flisp_app/models/flisp.dart';
 import 'package:flisp_app/provider/flisp_provider.dart';
+import 'package:flisp_app/utils/minio_utils.dart';
 import 'package:flisp_app/widgets/flisp_widget.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_form_builder/flutter_form_builder.dart';
@@ -45,6 +47,21 @@ class _FlispFormState extends State<FlispForm> {
     });
   }
 
+  void _selectImage(String fileName) {
+    final provider = Provider.of<FlispProvider>(context, listen: false);
+    setState(() {
+      provider.formItem.imageUrl =
+          '${MinIOHelper().rustfsFileUrl}/${MinIOHelper().bucketName}/$fileName';
+    });
+  }
+
+  void _deleteImage() {
+    final provider = Provider.of<FlispProvider>(context, listen: false);
+    setState(() {
+      provider.formItem.imageUrl = '';
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     final int maxContentCount = 100;
@@ -105,15 +122,35 @@ class _FlispFormState extends State<FlispForm> {
               SizedBox(height: 8),
               buildFlispTag(provider.formItem),
               SizedBox(height: 12),
+              if (provider.formItem.imageUrl.isNotEmpty)
+                buildFlispImage(
+                  flisp: provider.formItem,
+                  showDelete: true,
+                  onDelete: _deleteImage,
+                ),
             ],
           ),
         ),
       );
     }
 
+    void selectImage() async {
+      FilePickerResult? result = await FilePicker.platform.pickFiles(
+        type: FileType.custom,
+        allowedExtensions: ['jpg', 'jpeg', 'png'],
+        allowMultiple: false,
+      );
+
+      if (result != null) {
+        PlatformFile file = result.files.first;
+        final fileName = await MinIOHelper().uploadFile(file: file);
+        _selectImage(fileName);
+      }
+    }
+
     Widget buildSelectImageButton() {
       return GestureDetector(
-        onTap: () {},
+        onTap: () => selectImage(),
         child: Container(
           width: 36,
           height: 36,