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Original file line number Diff line number Diff line change
Expand Up @@ -161,6 +161,7 @@ boolean isDeviceConnected() {
static class ConnectivityChangeReceiver extends BroadcastReceiver {

@Nullable private SyncTask task; // task is set to null after it has been fired.
@Nullable private Context context;

public ConnectivityChangeReceiver(SyncTask task) {
this.task = task;
Expand All @@ -171,7 +172,10 @@ public void registerReceiver() {
Log.d(TAG, "Connectivity change received registered");
}
IntentFilter intentFilter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
task.getContext().registerReceiver(this, intentFilter);
if (task != null) {
context = task.getContext();
context.registerReceiver(this, intentFilter);
}
}

@Override
Expand All @@ -191,8 +195,10 @@ public void onReceive(Context context, Intent intent) {
Log.d(TAG, "Connectivity changed. Starting background sync.");
}
task.firebaseMessaging.enqueueTaskWithDelaySeconds(task, 0);
task.getContext().unregisterReceiver(this);
task = null;
if (this.context != null) {
this.context.unregisterReceiver(this);
task = null;
}
}
}

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