如何使用调用函数的android警报管理器更新徽章计数

<uses-permission android:name="com.android.launcher.permission.UPDATE_COUNT" />

// 获取应用的上下文对象
Context context = getApplicationContext();

// 获取NotificationManager对象
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

// 创建Notification对象
Notification notification = new Notification.Builder(context)
        .setContentTitle("新消息")
        .setContentText("您有一条新消息")
        .setSmallIcon(R.drawable.notification_icon)
        .build();

// 设置徽章计数
notification.number = 5;

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