1 /*
2  * Copyright (C) 2010 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  */
16 
17 package com.android.contacts.common.preference;
18 
19 import android.app.AlertDialog.Builder;
20 import android.content.Context;
21 import android.preference.ListPreference;
22 import android.util.AttributeSet;
23 
24 import com.android.contacts.common.R;
25 import com.android.contacts.common.preference.ContactsPreferences;
26 
27 /**
28  * Custom preference: sort-by.
29  */
30 public final class SortOrderPreference extends ListPreference {
31 
32     private ContactsPreferences mPreferences;
33     private Context mContext;
34 
SortOrderPreference(Context context)35     public SortOrderPreference(Context context) {
36         super(context);
37         prepare();
38     }
39 
SortOrderPreference(Context context, AttributeSet attrs)40     public SortOrderPreference(Context context, AttributeSet attrs) {
41         super(context, attrs);
42         prepare();
43     }
44 
prepare()45     private void prepare() {
46         mContext = getContext();
47         mPreferences = new ContactsPreferences(mContext);
48         setEntries(new String[]{
49                 mContext.getString(R.string.display_options_sort_by_given_name),
50                 mContext.getString(R.string.display_options_sort_by_family_name),
51         });
52         setEntryValues(new String[]{
53                 String.valueOf(ContactsPreferences.SORT_ORDER_PRIMARY),
54                 String.valueOf(ContactsPreferences.SORT_ORDER_ALTERNATIVE),
55         });
56         setValue(String.valueOf(mPreferences.getSortOrder()));
57     }
58 
59     @Override
shouldPersist()60     protected boolean shouldPersist() {
61         return false;   // This preference takes care of its own storage
62     }
63 
64     @Override
getSummary()65     public CharSequence getSummary() {
66         switch (mPreferences.getSortOrder()) {
67             case ContactsPreferences.SORT_ORDER_PRIMARY:
68                 return mContext.getString(R.string.display_options_sort_by_given_name);
69             case ContactsPreferences.SORT_ORDER_ALTERNATIVE:
70                 return mContext.getString(R.string.display_options_sort_by_family_name);
71         }
72         return null;
73     }
74 
75     @Override
persistString(String value)76     protected boolean persistString(String value) {
77         int newValue = Integer.parseInt(value);
78         if (newValue != mPreferences.getSortOrder()) {
79             mPreferences.setSortOrder(newValue);
80             notifyChanged();
81         }
82         return true;
83     }
84 
85     @Override
86     // UX recommendation is not to show cancel button on such lists.
onPrepareDialogBuilder(Builder builder)87     protected void onPrepareDialogBuilder(Builder builder) {
88         super.onPrepareDialogBuilder(builder);
89         builder.setNegativeButton(null, null);
90     }
91 }
92