no message

lib/upload_image/look_images_widget.dart

@@ -13,7 +13,9 @@ class LookImagesTool {
   static lookImages({
     required List<String> listData,
     int? currentPage,
+    void Function(String)? onCallBack,
     String? oSSAccessKeyId,
+    Function? callBack,
     String? policy,
     String? callback,
     String? signature,
@@ -46,6 +48,7 @@ class LookImagesWidget extends StatefulWidget {
   final String? signature;
   final String? ossDirectory;
   final String? ossHost;
+  final void Function(String)? onCallBack;
 
   const LookImagesWidget({
     super.key,
@@ -57,6 +60,7 @@ class LookImagesWidget extends StatefulWidget {
     this.signature,
     this.ossDirectory,
     this.ossHost,
+    this.onCallBack,
   });
 
   @override
@@ -129,16 +133,12 @@ class _LookImagesWidgetState extends State<LookImagesWidget> {
     return null;
   }
 
-
   /// 可选：根据字节头自动识别文件后缀（如图片、视频）
   String getExtension(Uint8List uint8List) {
     if (uint8List.length < 4) return "bin"; // 无法识别时返回二进制后缀
 
     // PNG 头：89 50 4E 47
-    if (uint8List[0] == 0x89 &&
+    if (uint8List[0] == 0x89 && uint8List[1] == 0x50 && uint8List[2] == 0x4E && uint8List[3] == 0x47) {
-        uint8List[1] == 0x50 &&
-        uint8List[2] == 0x4E &&
-        uint8List[3] == 0x47) {
       return "png";
     }
     // JPG 头：FF D8 FF
@@ -163,11 +163,12 @@ class _LookImagesWidgetState extends State<LookImagesWidget> {
     }
   }
 
-  /// Uint8List 转临时 File
+  /// Uint8List 转临时 File 并且上传到oss并返回访问路径
-  Future<File?> uint8ListToTempFile(Uint8List uint8List, {String fileName = "temp_file"}) async {
+  Future<String?> uint8ListToTempFile(Uint8List uint8List, {String fileName = "temp_file"}) async {
     try {
       // 1. 获取临时存储目录（跨平台兼容）
       Directory tempDir = await getTemporaryDirectory();
+
       String tempPath = tempDir.path;
 
       // 2. 拼接文件路径（可自定义后缀，如 .png、.mp4 等）
@@ -175,7 +176,9 @@ class _LookImagesWidgetState extends State<LookImagesWidget> {
 
       // 3. 将 Uint8List 写入文件
       await tempFile.writeAsBytes(uint8List);
-      print("临时文件路径：${tempFile.path}");
+
+      // print("临时文件路径：${tempFile.path}");
+
       String imageUrl = await UploadOss.upload(
         tempFile.path,
         fileType: getExtension(uint8List),
@@ -186,8 +189,8 @@ class _LookImagesWidgetState extends State<LookImagesWidget> {
         callback: widget.callback ?? '',
         signature: widget.signature ?? '',
       );
-      print("上传后的路径：$imageUrl");
+      // print("上传后的访问路径：$imageUrl");
-      return tempFile;
+      return imageUrl;
     } catch (e) {
       print("转换临时文件失败：$e");
       return null;
@@ -201,7 +204,6 @@ class _LookImagesWidgetState extends State<LookImagesWidget> {
       initialPage = 0;
       currentPage = 0;
     } else {
-      // initialPage = 0;
       currentPage = widget.currentPage ?? 0;
     }
     super.initState();
@@ -238,7 +240,8 @@ class _LookImagesWidgetState extends State<LookImagesWidget> {
               child: GestureDetector(
                   onTap: () async {
                     Uint8List? imageFile = await editImage(url: listData[currentPage]);
-                    uint8ListToTempFile(imageFile??Uint8List(0));
+                    String? url = await uint8ListToTempFile(imageFile ?? Uint8List(0));
+                    widget.onCallBack!(url??'');
                   },
                   child: Icon(Icons.edit, color: Colors.white))),
           //图片张数指示器