1 /*
2  * Copyright (C) 2011 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.util;
18 
19 import android.content.res.Resources.Theme;
20 import android.util.TypedValue;
21 
22 /**
23  * Provides static functions to more easily resolve attributes of the current theme
24  */
25 public class ThemeUtils {
26     /**
27      * Resolves the given attribute id of the theme to a resource id
28      */
getAttribute(Theme theme, int attrId)29     public static int getAttribute(Theme theme, int attrId) {
30         final TypedValue outValue = new TypedValue();
31         theme.resolveAttribute(attrId, outValue, true);
32         return outValue.resourceId;
33     }
34 
35     /**
36      * Returns the resource id of the background used for buttons to show pressed and focused state
37      */
getSelectableItemBackground(Theme theme)38     public static int getSelectableItemBackground(Theme theme) {
39         return getAttribute(theme, android.R.attr.selectableItemBackground);
40     }
41 
42     /**
43      * Returns the resource id of the background used for list items that show activated background
44      */
getActivatedBackground(Theme theme)45     public static int getActivatedBackground(Theme theme) {
46         return getAttribute(theme, android.R.attr.activatedBackgroundIndicator);
47     }
48 }
49