com.ultrafunk.network_info.service.MobileDataSettingObserver.java Source code

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/*
 * Copyright 2014 ultrafunk.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.ultrafunk.network_info.service;

import android.content.Context;
import android.content.Intent;
import android.database.ContentObserver;
import android.net.Uri;
import android.support.v4.content.LocalBroadcastManager;
import android.telephony.TelephonyManager;

import com.ultrafunk.network_info.Constants;
import com.ultrafunk.network_info.receiver.MobileDataUtils;
import com.ultrafunk.network_info.util.Utils;

public class MobileDataSettingObserver extends ContentObserver {
    private final Context context;

    public MobileDataSettingObserver(Context context) {
        super(null);
        this.context = context;
    }

    @Override
    public void onChange(boolean selfChange) {
        onChange(selfChange, null);
    }

    @Override
    public void onChange(boolean selfChange, Uri uri) {
        if (Utils.isWifiConnected(context) || NetworkStateService.isMobileOutOfService()
                || isMobileDataDisconnectedDueToRoaming())
            LocalBroadcastManager.getInstance(context)
                    .sendBroadcast(new Intent(Constants.ACTION_DATA_STATE_CHANGED));
    }

    // https://android.googlesource.com/platform/packages/apps/Phone/+/ics-mr0/src/com/android/phone/PhoneApp.java
    // Line: 1450 - boolean disconnectedDueToRoaming =
    private boolean isMobileDataDisconnectedDueToRoaming() {
        TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
        return (MobileDataUtils.isDataRoaming(context) == false) && telephonyManager.isNetworkRoaming();
    }
}