在android oreo和更高版本中，当应用程序完全关闭时，如何在特定时间获得通知？

我试图在android设备中的特定时间获得本地通知，它在android版本8下运行良好，但当应用程序从内存中被杀死时，我无法在android oreo中获得通知。我尝试使用广播接收器和服务，但没有工作？有什么帮助吗…

请使用作业服务进行此操作

 ​<service
           ​android:name=".TestJobService"
           ​android:label="Word service"
           ​android:permission="android.permission.BIND_JOB_SERVICE" >

</service

import android.app.job.JobParameters;
import android.app.job.JobService;
import android.content.Intent;

/**
 * JobService to be scheduled by the JobScheduler.
 * start another service
 */
public class TestJobService extends JobService {
    private static final String TAG = "SyncService";

    @Override
    public boolean onStartJob(JobParameters params) {
        Intent service = new Intent(getApplicationContext(), LocalWordService.class);
        getApplicationContext().startService(service);
        Util.scheduleJob(getApplicationContext()); // reschedule the job
        return true;
    }

    @Override
    public boolean onStopJob(JobParameters params) {
        return true;
    }

}

在Android清单中为BOOT_COMPLETED事件注册接收器

import android.app.job.JobParameters;
import android.app.job.JobService;
import android.content.Intent;

/**
 * JobService to be scheduled by the JobScheduler.
 * start another service
 */
public class TestJobService extends JobService {
    private static final String TAG = "SyncService";

    @Override
    public boolean onStartJob(JobParameters params) {
        Intent service = new Intent(getApplicationContext(), LocalWordService.class);
        getApplicationContext().startService(service);
        Util.scheduleJob(getApplicationContext()); // reschedule the job
        return true;
    }

    @Override
    public boolean onStopJob(JobParameters params) {
        return true;
    }

}

import android.app.job.JobParameters;
import android.app.job.JobService;
import android.content.Intent;

/**
 * JobService to be scheduled by the JobScheduler.
 * start another service
 */
public class TestJobService extends JobService {
    private static final String TAG = "SyncService";

    @Override
    public boolean onStartJob(JobParameters params) {
        Intent service = new Intent(getApplicationContext(), LocalWordService.class);
        getApplicationContext().startService(service);
        Util.scheduleJob(getApplicationContext()); // reschedule the job
        return true;
    }

    @Override
    public boolean onStopJob(JobParameters params) {
        return true;
    }

}

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你能分享任何样本项目请？？？我真的需要这个