session-android/src/org/thoughtcrime/securesms/jobmanager/impl/CellServiceConstraintObserver.java

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2019-03-28 08:56:35 -07:00
package org.thoughtcrime.securesms.jobmanager.impl;
import android.app.Application;
import android.content.Context;
import android.support.annotation.NonNull;
import android.telephony.PhoneStateListener;
import android.telephony.ServiceState;
import android.telephony.TelephonyManager;
import org.thoughtcrime.securesms.jobmanager.ConstraintObserver;
public class CellServiceConstraintObserver implements ConstraintObserver {
private static final String REASON = CellServiceConstraintObserver.class.getSimpleName();
private Notifier notifier;
public CellServiceConstraintObserver(@NonNull Application application) {
TelephonyManager telephonyManager = (TelephonyManager) application.getSystemService(Context.TELEPHONY_SERVICE);
ServiceStateListener serviceStateListener = new ServiceStateListener();
telephonyManager.listen(serviceStateListener, PhoneStateListener.LISTEN_SERVICE_STATE);
}
@Override
public void register(@NonNull Notifier notifier) {
this.notifier = notifier;
}
private class ServiceStateListener extends PhoneStateListener {
@Override
public void onServiceStateChanged(ServiceState serviceState) {
if (serviceState.getState() == ServiceState.STATE_IN_SERVICE && notifier != null) {
notifier.onConstraintMet(REASON);
}
}
}
}