Update

lib/utils/clipboard.dart

@@ -0,0 +1,32 @@
+import 'package:flutter/foundation.dart';
+import 'package:super_clipboard/super_clipboard.dart';
+import '../platform/to_png_none.dart'
+    if (dart.library.html) '../platform/to_png.dart';
+
+enum ImageFmt {
+  jpg,
+  png,
+  gif,
+}
+
+Future<void> copyImageToClipboard(Uint8List data, ImageFmt fmt) async {
+  final item = DataWriterItem();
+  if (!kIsWeb) {
+    item.add(fmt == ImageFmt.jpg
+        ? Formats.jpeg(data)
+        : fmt == ImageFmt.gif
+            ? Formats.gif(data)
+            : Formats.png(data));
+  } else {
+    item.add(fmt == ImageFmt.gif
+        ? Formats.gif(data)
+        : Formats.png(fmt == ImageFmt.jpg ? await jpgToPng(data) : data));
+  }
+  await ClipboardWriter.instance.write([item]);
+}
+
+Future<void> copyTextToClipboard(String text) async {
+  final item = DataWriterItem();
+  item.add(Formats.plainText(text));
+  await ClipboardWriter.instance.write([item]);
+}