Android Open Source - opentraining Whats New Dialog

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
* (c) 2012 Martin van Zuilekom (http://martin.cubeactive.com)
*/*from   www.  j av a2s .c o m*/
* 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 de.skubware.opentraining.activity;

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


/**
* Class to show a dialog with the latest changes for the current app version.
*/
public class WhatsNewDialog extends ChangeLogDialog {
    private static final String WHATS_NEW_LAST_SHOWN = "whats_new_last_shown";

    public WhatsNewDialog(final Context context) {
        super(context);
    }

    //Get the current app version
    private int getAppVersionCode() {
        try {
            final PackageInfo packageInfo = getContext().getPackageManager().getPackageInfo(getContext().getPackageName(), 0);
            return packageInfo.versionCode;
        } catch (NameNotFoundException ignored) {
            return 0;
        }
    }

    public void forceShow() {
        //Show only the changes from this version (if available)
        show(getAppVersionCode());
    }

    @Override
    public void show() {
        //ToDo check if version is shown
        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
        final int versionShown = prefs.getInt(WHATS_NEW_LAST_SHOWN, 0);
        if (versionShown != getAppVersionCode()) {
            //This version is new, show only the changes from this version (if available)
            show(getAppVersionCode());

            //Update last shown version
            final SharedPreferences.Editor edit = prefs.edit();
            edit.putInt(WHATS_NEW_LAST_SHOWN, getAppVersionCode());
            edit.commit();
        }
        if(mOnDismissListener != null) {
            mOnDismissListener.onDismiss(null);
        }
    }
}

Java Source Code List

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