java – 作业调度setRequiresDeviceIdle(true)和setPeriodic()不
发布时间:2020-12-15 02:15:44 所属栏目:Java 来源:网络整理
导读:我正在开发应用程序,在10秒后执行后台任务并检查设备是否空闲,但是有些如何在没有检查设备是否空闲的情况下每10秒触发一次. MainActivity.java private static final int JOB_ID = 1; @Override protected void onCreate(Bundle savedInstanceState) { super
我正在开发应用程序,在10秒后执行后台任务并检查设备是否空闲,但是有些如何在没有检查设备是否空闲的情况下每10秒触发一次.
MainActivity.java private static final int JOB_ID = 1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mJobScheduler = (JobScheduler) getSystemService(this.JOB_SCHEDULER_SERVICE); construct_job(); } private void construct_job(){ JobInfo.Builder builder = new JobInfo.Builder(JOB_ID,new ComponentName(getPackageName(),MyJobService.class.getName())) .setPeriodic(10000).setRequiresDeviceIdle(true); int code = mJobScheduler.schedule(builder.build()); if( code <= 0 ) { //If something goes wrong Log.v("SOMETHING","GOES WRONG"); } } MyJobService.java public class MyJobService extends JobService { @Override public boolean onStartJob(JobParameters params) { Log.v("OnStart","onStartJob-h"); //Job Will Be Started Here mJobHandler.sendMessage( Message.obtain( mJobHandler,1,params ) ); return true; } @Override public boolean onStopJob(JobParameters params) { Log.v("JOB","STOPPED"); mJobHandler.removeMessages( 1 ); return false; } private Handler mJobHandler = new Handler(new Handler.Callback() { @Override public boolean handleMessage( Message msg ) { Toast.makeText( getApplicationContext(),"JobService task running",Toast.LENGTH_SHORT ) .show(); jobFinished( (JobParameters) msg.obj,false ); return true; } }); } AndroidManifiest.xml <service android:name=".MyJobService" android:permission="android.permission.BIND_JOB_SERVICE" android:exported="true"/> 是的,任何人都知道我做错了什么?请帮忙? 解决方法
添加.setRequirementsEnforced(true)可能会解决您的问题.
查看文档:可以为作业设置多个要求,但是,并非所有要求都需要由基础{@link JobApi}来考虑.如果强制执行要求,则会在作业运行之前检查设备状态.如果未满足至少一个要求,则重新安排作业而不运行.… (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |