Android Open Source - android-sdk-demo-app G C M Registration Id Util

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License

The source code is released under:

MIT License

Java Source Code

/*
 * The MIT License (MIT)//w  w  w  .  ja v  a 2s  .  c o  m
 *
 * Copyright (c) 2014 Measurence Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.measurence.sdk.android.api_subscription.gcm;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.preference.PreferenceManager;
import android.util.Log;

import com.measurence.sdk.android.demo.R;

public class GCMRegistrationIdUtil {

    public static String getRegistrationId(Context context) {
        final String LOG_TAG = context.getString(R.string.log_prefix) + " "+GCMRegistrationIdUtil.class.getSimpleName();
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
        String registrationId = preferences.getString(context.getString(R.string.prop_reg_id), null);
        if (registrationId == null) {
            return null;
        }

        int registeredVersion = preferences.getInt(context.getString(R.string.app_version), Integer.MIN_VALUE);
        int currentVersion = getAppVersion(context);
        if (registeredVersion != currentVersion) {
            Log.i(LOG_TAG, "App version changed.");
            return null;
        }

        return registrationId;
    }

    public static boolean checkRegistration(Context context) {
        return getRegistrationId(context) != null;
    }

    public static int getAppVersion(Context context) {
        try {
            PackageInfo packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
            return packageInfo.versionCode;
        } catch (PackageManager.NameNotFoundException e) {
            // should never happen
            throw new RuntimeException("Could not get package name: " + e);
        }
    }

}

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