Job Scheduler Code sample

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.josiassena.jobscheduler">

    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>

                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>

        <service
            android:name=".MyJobService"
            android:enabled="true"
            android:exported="false"
            android:permission="android.permission.BIND_JOB_SERVICE"/>

    </application>

</manifest>

MainActivity.java

public class MainActivity extends AppCompatActivity {

    private static final String TAG = MainActivity.class.getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                scheduleJob();
            }
        });
    }

    private void scheduleJob() {
        final JobScheduler jobScheduler = (JobScheduler) getSystemService(
                Context.JOB_SCHEDULER_SERVICE);

        // The JobService that we want to run
        final ComponentName name = new ComponentName(this, MyJobService.class);

        // Schedule the job
        final int result = jobScheduler.schedule(getJobInfo(123, 1, name));

        // If successfully scheduled, log this thing
        if (result == JobScheduler.RESULT_SUCCESS) {
            Log.d(TAG, "Scheduled job successfully!");
        }

    }

    private JobInfo getJobInfo(final int id, final long hour, final ComponentName name) {
        final long interval = TimeUnit.HOURS.toMillis(hour); // run every hour
        final boolean isPersistent = true; // persist through boot
        final int networkType = JobInfo.NETWORK_TYPE_ANY; // Requires some sort of connectivity

        final JobInfo jobInfo;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            jobInfo = new JobInfo.Builder(id, name)
                    .setMinimumLatency(interval)
                    .setRequiredNetworkType(networkType)
                    .setPersisted(isPersistent)
                    .build();
        } else {
            jobInfo = new JobInfo.Builder(id, name)
                    .setPeriodic(interval)
                    .setRequiredNetworkType(networkType)
                    .setPersisted(isPersistent)
                    .build();
        }

        return jobInfo;
    }
}

MyJobService.java

public class MyJobService extends JobService {

    private static final String TAG = MyJobService.class.getSimpleName();

    @Override
    public boolean onStartJob(final JobParameters params) {

        HandlerThread handlerThread = new HandlerThread("SomeOtherThread");
        handlerThread.start();

        Handler handler = new Handler(handlerThread.getLooper());
        handler.post(new Runnable() {
            @Override
            public void run() {
                Log.e(TAG, "Running!!!!!!!!!!!!!");
                jobFinished(params, true);
            }
        });

        return true;
    }

    @Override
    public boolean onStopJob(final JobParameters params) {
        Log.d(TAG, "onStopJob() was called");
        return true;
    }
}

hello I only have one query I have been seeing examples of several and always in the method jobFinished () instead of placing a true place a false and I have seen several examples of different people wanted to know if you could explain that part because true and not false only ,Thank you

@leandro1995,

imo you set true if you don't need to reschedule the task, else set it to false such as in exception so that system will reschedule accordingly