来自 Firebase JobDispatcher 文档 Firebase JobDispatcher
setTrigger(Trigger.executionWindow(0, 60))
// start between 0 and 60 seconds
但为什么我的服务运行了两次
Firebase JobDispatcher 代码
FirebaseJobDispatcher dispatcher = new FirebaseJobDispatcher(new GooglePlayDriver(this));
Job job = dispatcher.newJobBuilder()
.setTag("testing job")
.setService(TestingJob.class)
.setReplaceCurrent(true)
.setRecurring(true)
.setTrigger(Trigger.executionWindow(0,1))
.setConstraints(Constraint.ON_ANY_NETWORK)
.setLifetime(Lifetime.FOREVER)
.build();
dispatcher.mustSchedule(job);
测试类(Job Service)
public class TestingJob extends JobService {
private static final String TAG = "TestingJob";
private int i =0;
@Override
public boolean onStartJob(JobParameters job) {
Log.d(TAG, "onStartJob Testing Job: "+new Date().toString());
Log.d(TAG, "onStartJob: i = "+String.valueOf(i));
i+=1;
return false;
}
@Override
public boolean onStopJob(JobParameters job) {
Log.d(TAG, "onStopJob Testing Job: Stopped");
return false;
}
}
记录猫
11-28 00:08:57.666 11793-11793: onStartJob Testing Job: Tue Nov 28 00:08:57 GMT+05:00 2017
11-28 00:08:57.666 11793-11793: onStartJob: i = 0
11-28 00:08:57.791 11793-11793: onStartJob Testing Job: Tue Nov 28 00:08:57 GMT+05:00 2017
11-28 00:08:57.791 11793-11793: onStartJob: i = 0
list
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<service android:name=".services.TestingJob"
android:exported="false">
<intent-filter>
<action android:name="com.firebase.jobdispatcher.ACTION_EXECUTE"/>
</intent-filter>
</service>
Can i use my Job Service Again 意味着 int i
应该每次递增。
感谢您的帮助
最佳答案
我认为我们应该知道一些方法
FirebaseJobDispatcher dispatcher = new FirebaseJobDispatcher(new GooglePlayDriver(this));
Job job = dispatcher.newJobBuilder()
.setTag("testing job")
.setService(TestingJob.class)
.setReplaceCurrent(true)
.setRecurring(true)
.setTrigger(Trigger.executionWindow(0,1))
.setConstraints(Constraint.ON_ANY_NETWORK)
.setLifetime(Lifetime.FOREVER)
.build();
dispatcher.mustSchedule(job);
在这你设置
.setRecurring(true)
:这意味着不断重复。
用开始和结束设置触发器
.setTrigger(Trigger.executionWindow(开始, 结束))
:
.setReplaceCurrent(false)
:这意味着不要覆盖具有相同标签的现有作业。
关于android - 为什么 Firebase JobDispatcher 运行 JobService 2 次?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47518439/