如何在android应用程序中运行cron作业，该应用程序在后台运行并显示可点击的通知

// 创建BroadcastReceiver
public class MyBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        // 执行任务
        performTask(context);

        // 显示通知
        showNotification(context);
    }

    private void performTask(Context context) {
        // 执行你的任务逻辑
    }

    private void showNotification(Context context) {
        // 创建通知
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
                .setSmallIcon(R.drawable.notification_icon)
                .setContentTitle("任务完成")
                .setContentText("点击查看详情");

        // 设置点击操作
        Intent resultIntent = new Intent(context, MainActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(pendingIntent);

        // 显示通知
        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(0, builder.build());
    }
}

// 注册BroadcastReceiver
<receiver android:name=".MyBroadcastReceiver" />

// 设置定时任务
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, MyBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 60 * 1000, pendingIntent);

// 后台运行应用程序
// 可以使用Service或JobScheduler来实现后台运行，具体实现方式根据需求选择。