feat:增加Minio工具类

lib/widgets/common/form.dart

@@ -79,7 +79,6 @@ Widget _buildCancelButton(BuildContext context) {
       backgroundColor: Colors.white,
       foregroundColor: const Color(0xFF4E5969),
       side: const BorderSide(color: Color(0xFFDCDFE6)),
-      padding: const EdgeInsets.symmetric(vertical: 15),
       shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
       elevation: 0,
     ),
@@ -90,10 +89,9 @@ Widget _buildCancelButton(BuildContext context) {
 /// 提交按钮
 Widget _buildSubmitButton(BuildContext context, VoidCallback onConfirm) {
   return ElevatedButton(
-    onPressed: onConfirm,
+    onPressed: () => onConfirm(),
     style: ElevatedButton.styleFrom(
-      backgroundColor: Theme.of(context).primaryColor, // 使用传入的context获取主题
-      padding: const EdgeInsets.symmetric(vertical: 15),
+      backgroundColor: Theme.of(context).colorScheme.primary,
       shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
       elevation: 0,
     ),

lib/widgets/common/image.dart

@@ -1,3 +1,5 @@
+import 'dart:io';
+
 import 'package:flutter/material.dart';
 import 'package:photo_view/photo_view.dart';
 import 'package:photo_view/photo_view_gallery.dart';
@@ -88,19 +90,35 @@ class _ImagePreviewPageState extends State<ImagePreviewPage> {
   }
 }
 
+Widget buildFileImage(BuildContext context, File imageFile) {
+  return GestureDetector(
+    onTap: () => showFullScreenImage(context, FileImage(imageFile)),
+    child: Image(
+      image: FileImage(imageFile),
+      width: 120,
+      height: 120,
+      fit: BoxFit.cover,
+      loadingBuilder: (context, child, loadingProgress) {
+        if (loadingProgress == null) return child;
+        return buildImageLoadingIndicator(loadingProgress);
+      },
+    ),
+  );
+}
+
 Widget buildNetworkImage(BuildContext context, String url) {
   return ClipRRect(
     borderRadius: BorderRadius.circular(8),
     child: GestureDetector(
       onTap: () {
-        _showFullScreenImage(context, url);
+        showFullScreenImage(context, NetworkImage(url));
       },
       child: Image.network(
         url,
         fit: BoxFit.cover,
         loadingBuilder: (context, child, loadingProgress) {
           if (loadingProgress == null) return child;
-          return _buildLoadingIndicator(loadingProgress);
+          return buildImageLoadingIndicator(loadingProgress);
         },
         errorBuilder: (context, error, stackTrace) => _buildErrorImage(),
       ),
@@ -108,7 +126,7 @@ Widget buildNetworkImage(BuildContext context, String url) {
   );
 }
 
-Widget _buildLoadingIndicator(ImageChunkEvent? loadingProgress) {
+Widget buildImageLoadingIndicator(ImageChunkEvent? loadingProgress) {
   return Center(
     child: SizedBox(
       width: 30,
@@ -131,15 +149,14 @@ Widget _buildErrorImage() {
   );
 }
 
-Widget _buildPhotoView(String url) {
+Widget _buildPhotoView(ImageProvider imageProvider) {
   return PhotoView(
-    imageProvider: NetworkImage(url),
+    imageProvider: imageProvider,
     backgroundDecoration: const BoxDecoration(color: Colors.transparent),
     minScale: PhotoViewComputedScale.contained,
     maxScale: PhotoViewComputedScale.covered * 2,
     initialScale: PhotoViewComputedScale.contained,
-    heroAttributes: PhotoViewHeroAttributes(tag: url),
-    loadingBuilder: (context, event) => _buildLoadingIndicator(event),
+    loadingBuilder: (context, event) => buildImageLoadingIndicator(event),
     errorBuilder: (context, error, stackTrace) => _buildErrorImage(),
   );
 }
@@ -155,7 +172,7 @@ Widget _buildCloseImage(BuildContext context) {
   );
 }
 
-void _showFullScreenImage(BuildContext context, String url) {
+void showFullScreenImage(BuildContext context, ImageProvider imageProvider) {
   Navigator.of(context).push(
     PageRouteBuilder(
       opaque: false,
@@ -169,7 +186,7 @@ void _showFullScreenImage(BuildContext context, String url) {
           body: Stack(
             children: [
               // 可缩放图片
-              Positioned.fill(child: _buildPhotoView(url)),
+              Positioned.fill(child: _buildPhotoView(imageProvider)),
               // 关闭按钮
               _buildCloseImage(context),
             ],
@@ -179,3 +196,46 @@ void _showFullScreenImage(BuildContext context, String url) {
     ),
   );
 }
+
+Widget buildImageUploadButton({required VoidCallback onPickImage}) {
+  return InkWell(
+    onTap: onPickImage,
+    borderRadius: BorderRadius.circular(8),
+    child: Container(
+      width: 96,
+      height: 96,
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(8),
+        border: Border.all(color: Colors.black),
+      ),
+      child: const Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Icon(Icons.add, color: Color(0xFF86909C)),
+          SizedBox(height: 6),
+          Text('添加图片', style: TextStyle(color: Color(0xFF86909C))),
+        ],
+      ),
+    ),
+  );
+}
+
+Widget buildDeleteImage({required VoidCallback onRemoveImage}) {
+  return Positioned(
+    top: 0,
+    right: 0,
+    child: GestureDetector(
+      onTap: onRemoveImage,
+      child: Container(
+        width: 24,
+        height: 24,
+        decoration: const BoxDecoration(
+          color: Colors.red,
+          shape: BoxShape.circle,
+        ),
+        child: const Icon(Icons.close, color: Colors.white, size: 16),
+      ),
+    ),
+  );
+}