ViewEmergencyInfoFragment.java revision 5874835f1edc1cac42eb4b3aa5fe437e8fd53c78 
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of 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,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package com.android.emergency.view;
17
18import android.app.Fragment;
19import android.os.Bundle;
20import android.preference.Preference;
21import android.preference.PreferenceFragment;
22
23import com.android.emergency.PreferenceKeys;
24import com.android.emergency.R;
25import com.android.emergency.ReloadablePreferenceInterface;
26
27import java.util.ArrayList;
28import java.util.List;
29
30/**
31 * Fragment that displays personal and medical information.
32 */
33public class ViewEmergencyInfoFragment extends PreferenceFragment {
34    /** A list with all the preferences. */
35    private final List<Preference> mPreferences = new ArrayList<Preference>();
36
37    @Override
38    public void onCreate(Bundle savedInstanceState) {
39        super.onCreate(savedInstanceState);
40        addPreferencesFromResource(R.xml.view_emergency_info);
41
42        for (String preferenceKey : PreferenceKeys.KEYS_EMERGENCY_INFO) {
43            Preference preference = findPreference(preferenceKey);
44            mPreferences.add(preference);
45        }
46    }
47
48    @Override
49    public void onResume() {
50        super.onResume();
51        for (Preference preference : mPreferences) {
52            ReloadablePreferenceInterface reloadablePreference =
53                    (ReloadablePreferenceInterface) preference;
54            reloadablePreference.reloadFromPreference();
55            if (reloadablePreference.isNotSet()) {
56                getPreferenceScreen().removePreference(preference);
57            } else {
58                // Note: this preference won't be added it if it already exists.
59                getPreferenceScreen().addPreference(preference);
60            }
61        }
62    }
63
64    public static Fragment newInstance() {
65        return new ViewEmergencyInfoFragment();
66    }
67}
68