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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
      5  * use this file except in compliance with the License. You may obtain a copy of
      6  * the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
     13  * License for the specific language governing permissions and limitations under
     14  * the License.
     15  */
     16 
     17 package com.android.cellbroadcastreceiver;
     18 
     19 import android.content.res.Resources;
     20 import android.os.Bundle;
     21 import android.preference.ListPreference;
     22 import android.preference.Preference;
     23 import android.preference.PreferenceActivity;
     24 
     25 /**
     26  * Settings activity for the cell broadcast receiver.
     27  */
     28 public class CellBroadcastSettings extends PreferenceActivity {
     29 
     30     // Preference key for whether to enable emergency notifications (default enabled).
     31     public static final String KEY_ENABLE_EMERGENCY_ALERTS = "enable_emergency_alerts";
     32 
     33     // Duration of alert sound (in seconds).
     34     public static final String KEY_ALERT_SOUND_DURATION = "alert_sound_duration";
     35 
     36     // Default alert duration (in seconds).
     37     public static final String ALERT_SOUND_DEFAULT_DURATION = "4";
     38 
     39     // Speak contents of alert after playing the alert sound.
     40     public static final String KEY_ENABLE_ALERT_SPEECH = "enable_alert_speech";
     41 
     42     // Preference category for ETWS related settings.
     43     public static final String KEY_CATEGORY_ETWS_SETTINGS = "category_etws_settings";
     44 
     45     // Whether to display ETWS test messages (default is disabled).
     46     public static final String KEY_ENABLE_ETWS_TEST_ALERTS = "enable_etws_test_alerts";
     47 
     48     // Preference category for CMAS related settings.
     49     public static final String KEY_CATEGORY_CMAS_SETTINGS = "category_cmas_settings";
     50 
     51     // Whether to display CMAS imminent threat notifications (default is enabled).
     52     public static final String KEY_ENABLE_CMAS_IMMINENT_THREAT_ALERTS =
     53             "enable_cmas_imminent_threat_alerts";
     54 
     55     // Whether to display CMAS amber alert messages (default is disabled).
     56     public static final String KEY_ENABLE_CMAS_AMBER_ALERTS = "enable_cmas_amber_alerts";
     57 
     58     // Whether to display CMAS monthly test messages (default is disabled).
     59     public static final String KEY_ENABLE_CMAS_TEST_ALERTS = "enable_cmas_test_alerts";
     60 
     61     // Preference category for Brazil specific settings.
     62     public static final String KEY_CATEGORY_BRAZIL_SETTINGS = "category_brazil_settings";
     63 
     64     // Preference key for whether to enable channel 50 notifications
     65     // Enabled by default for phones sold in Brazil, otherwise this setting may be hidden.
     66     public static final String KEY_ENABLE_CHANNEL_50_ALERTS = "enable_channel_50_alerts";
     67 
     68     @Override
     69     public void onCreate(Bundle savedInstanceState) {
     70         super.onCreate(savedInstanceState);
     71         addPreferencesFromResource(R.xml.preferences);
     72         Resources res = getResources();
     73         if (!res.getBoolean(R.bool.show_etws_settings)) {
     74             getPreferenceScreen().removePreference(findPreference(KEY_CATEGORY_ETWS_SETTINGS));
     75         }
     76         if (!res.getBoolean(R.bool.show_cmas_settings)) {
     77             getPreferenceScreen().removePreference(findPreference(KEY_CATEGORY_CMAS_SETTINGS));
     78         }
     79         if (!res.getBoolean(R.bool.show_brazil_settings)) {
     80             getPreferenceScreen().removePreference(findPreference(KEY_CATEGORY_BRAZIL_SETTINGS));
     81         }
     82 
     83         ListPreference duration = (ListPreference) findPreference(KEY_ALERT_SOUND_DURATION);
     84         duration.setSummary(duration.getEntry());
     85         duration.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
     86             public boolean onPreferenceChange(Preference pref, Object newValue) {
     87                 final ListPreference listPref = (ListPreference) pref;
     88                 final int idx = listPref.findIndexOfValue((String) newValue);
     89                 listPref.setSummary(listPref.getEntries()[idx]);
     90                 return true;
     91             }
     92         });
     93 
     94         Preference.OnPreferenceChangeListener startConfigServiceListener =
     95                 new Preference.OnPreferenceChangeListener() {
     96                     public boolean onPreferenceChange(Preference pref, Object newValue) {
     97                         CellBroadcastReceiver.startConfigService(pref.getContext());
     98                         return true;
     99                     }
    100                 };
    101         Preference enablePwsAlerts = findPreference(KEY_ENABLE_EMERGENCY_ALERTS);
    102         if (enablePwsAlerts != null) {
    103             enablePwsAlerts.setOnPreferenceChangeListener(startConfigServiceListener);
    104         }
    105         Preference enableChannel50Alerts = findPreference(KEY_ENABLE_CHANNEL_50_ALERTS);
    106         if (enableChannel50Alerts != null) {
    107             enableChannel50Alerts.setOnPreferenceChangeListener(startConfigServiceListener);
    108         }
    109     }
    110 }
    111