R.string.value帮助android通知

// 获取通知管理器（NotificationManager）实例
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

// 创建通知
Notification notification = new Notification(R.drawable.ic_launcher, "Hello, World!", System.currentTimeMillis());

// 设置通知标题和通知消息
notification.setLatestEventInfo(this, "MyApp", "Hello, World!", PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), 0));

// 发送通知
notificationManager.notify(0, notification);

<resources>
    <string name="app_name">MyApp</string>
    <string name="hello_world">Hello, World!</string>
</resources>