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处于空闲状态,但是有些如何在不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"/>
那么,任何人都知道我做错了什么?请帮帮忙?
答案 0 :(得分:0)
添加.setRequirementsEnforced(true)可能会解决您的问题。
参见文档: 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。 ...