process #235

example/lib/demo/issue235_toast.dart

@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
+
+void main() {
+  runApp(MaterialApp(
+    navigatorObservers: [FlutterSmartDialog.observer],
+    builder: FlutterSmartDialog.init(),
+    home: const MyApp(),
+  ));
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text(
+          "Test",
+        ),
+      ),
+      body: Center(
+        child: ElevatedButton(
+          onPressed: () async {
+            show("toast1");
+            show("toast2");
+          },
+          child: const Text(
+            "Click",
+          ),
+        ),
+      ),
+    );
+  }
+
+  Future show(String msg) {
+    return SmartDialog.showToast(
+      msg,
+      alignment: Alignment.center,
+      displayType: SmartToastType.last,
+      displayTime: const Duration(seconds: 3),
+    );
+  }
+}

lib/src/custom/toast/custom_toast.dart

@@ -141,7 +141,9 @@ class CustomToast extends BaseDialog {
     var toastQueue = ToastTool.instance.toastQueue;
     if (toastQueue.isNotEmpty) {
       for (var item in toastQueue) {
-        item.mainDialog.overlayEntry.remove();
+        await ViewUtils.awaitPostFrame(onPostFrame: () {
+          item.mainDialog.overlayEntry.remove();
+        });
       }
       toastQueue.clear();
       ToastTool.instance.cancelLastDelay();