播放音频

lib/muyu/muyu_app_bar.dart

@@ -0,0 +1,32 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+class MuyuAppBar extends StatelessWidget implements PreferredSizeWidget {
+  final VoidCallback onTapHistory;
+
+  const MuyuAppBar({
+    Key? key,
+    required this.onTapHistory,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return AppBar(
+      elevation: 0,
+      systemOverlayStyle: const SystemUiOverlayStyle(
+          statusBarIconBrightness: Brightness.dark,
+          statusBarColor: Colors.transparent),
+      backgroundColor: Colors.white,
+      titleTextStyle: const TextStyle(
+          color: Colors.black, fontSize: 16, fontWeight: FontWeight.bold),
+      iconTheme: const IconThemeData(color: Colors.black),
+      title: const Text("电子木鱼"),
+      actions: [
+        IconButton(onPressed: onTapHistory, icon: const Icon(Icons.history))
+      ],
+    );
+  }
+
+  @override
+  Size get preferredSize => const Size.fromHeight(kToolbarHeight);
+}