Question

我正在尝试在特定时间在android设备中获取本地通知，它在低于android版本8的情况下工作良好，但是当应用程序从内存中被杀死时，我无法在android oreo中获得通知。我可以通过广播接收器和服务尝试此操作，但是没有用吗？请帮忙...

Answer 1

为此使用求职服务

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

</service

实用程序类

import android.app.job.JobInfo;
import android.app.job.JobScheduler;
import android.content.ComponentName;
import android.content.Context;

public class Util {

    // schedule the start of the service every 10 - 30 seconds
    public static void scheduleJob(Context context) {
        ComponentName serviceComponent = new ComponentName(context, TestJobService.class);
        JobInfo.Builder builder = new JobInfo.Builder(0, serviceComponent);
        builder.setMinimumLatency(1 * 1000); // wait at least
        builder.setOverrideDeadline(3 * 1000); // maximum delay
        //builder.setRequiredNetworkType(JobInfo.NETWORK_TYPE_UNMETERED); // require unmetered network
        //builder.setRequiresDeviceIdle(true); // device should be idle
        //builder.setRequiresCharging(false); // we don't care if the device is charging or not
        JobScheduler jobScheduler = context.getSystemService(JobScheduler.class);
        jobScheduler.schedule(builder.build());
    }

}




import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class MyStartServiceReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        Util.scheduleJob(context);
    }
}

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;
    }

}

应用被彻底杀死后，如何在特定时间在android oreo及更高版本中获得通知？

1 个答案: