/*
* Copyright (C) 2008 The Android Open Source Project
*
* 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 org.npr.android.util;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import org.npr.android.news.R;
/**
* Displays an EULA ("End User License Agreement") that the user has to accept
* before using the application. Your application should call
* {@link Eula#showEula(android.app.Activity)} in the onCreate() method of the
* first activity. If the user accepts the EULA, it will never be shown again.
* If the user refuses, {@link android.app.Activity#finish()} is invoked on your
* activity.
*/
public class Eula {
private static final String PREFERENCE_EULA_ACCEPTED = "eula.accepted";
private static final String PREFERENCES_EULA = "eula";
/**
* Displays the EULA if necessary. This method should be called from the
* onCreate() method of your main Activity.
*
* @param activity The Activity to finish if the user rejects the EULA.
*/
public static void showEula(final Activity activity) {
final SharedPreferences preferences =
activity.getSharedPreferences(PREFERENCES_EULA, Activity.MODE_PRIVATE);
if (!preferences.getBoolean(PREFERENCE_EULA_ACCEPTED, false)) {
final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle(R.string.msg_eula_title);
builder.setCancelable(true);
builder.setPositiveButton(R.string.msg_eula_accept,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
accept(preferences);
}
});
builder.setNegativeButton(R.string.msg_eula_refuse,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
refuse(activity);
}
});
builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface dialog) {
refuse(activity);
}
});
builder.setMessage(
FileUtils.readFile(activity.getResources(), R.raw.eula)
);
builder.create().show();
}
}
private static void accept(SharedPreferences preferences) {
preferences.edit().putBoolean(PREFERENCE_EULA_ACCEPTED, true).commit();
}
private static void refuse(Activity activity) {
activity.finish();
}
}