| /* |
| * Copyright (C) 2016 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 com.android.emergency.view; |
| |
| import android.app.Fragment; |
| import android.content.Context; |
| import android.content.SharedPreferences; |
| import android.os.Bundle; |
| import android.preference.PreferenceFragment; |
| import android.preference.PreferenceManager; |
| import android.widget.ListView; |
| |
| import com.android.emergency.PreferenceKeys; |
| import com.android.emergency.R; |
| import com.android.emergency.preferences.EmergencyContactsPreference; |
| |
| import java.util.Collections; |
| |
| /** |
| * Fragment that displays emergency contacts. |
| */ |
| public class ViewEmergencyContactsFragment extends PreferenceFragment { |
| /** The category that holds the emergency contacts. */ |
| private EmergencyContactsPreference mEmergencyContactsPreference; |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| addPreferencesFromResource(R.xml.view_emergency_contacts); |
| mEmergencyContactsPreference = (EmergencyContactsPreference) |
| findPreference(PreferenceKeys.KEY_EMERGENCY_CONTACTS); |
| } |
| |
| @Override |
| public void onActivityCreated(Bundle savedInstanceState) { |
| super.onActivityCreated(savedInstanceState); |
| // Set custom dividers |
| ListView list = (ListView) getView().findViewById(android.R.id.list); |
| list.setDivider(getResources().getDrawable(R.drawable.view_contact_divider)); |
| } |
| |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| mEmergencyContactsPreference.reloadFromPreference(); |
| } |
| |
| public static Fragment newInstance() { |
| return new ViewEmergencyContactsFragment(); |
| } |
| |
| /** Returns true if there is at least one valid (still existing) emergency contact. */ |
| public static boolean hasAtLeastOneEmergencyContact(Context context) { |
| SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); |
| String emergencyContactsString = ""; |
| try { |
| emergencyContactsString = prefs.getString(PreferenceKeys.KEY_EMERGENCY_CONTACTS, ""); |
| } catch (ClassCastException e) { |
| // Protect against b/28194605: We used to store the contacts using a string set. |
| // If it is a string set, ignore its value. If it is not a string set it will throw |
| // a ClassCastException |
| prefs.getStringSet( |
| PreferenceKeys.KEY_EMERGENCY_CONTACTS, |
| Collections.<String>emptySet()); |
| } |
| |
| return !EmergencyContactsPreference.deserializeAndFilter( |
| PreferenceKeys.KEY_EMERGENCY_CONTACTS, |
| context, |
| emergencyContactsString).isEmpty(); |
| } |
| } |