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.settings.applications;
18 
19 import android.content.pm.ActivityInfo;
20 import android.content.res.Configuration;
21 import android.content.res.Resources;
22 
23 class InterestingConfigChanges {
24     final Configuration mLastConfiguration = new Configuration();
25     int mLastDensity;
26 
applyNewConfig(Resources res)27     boolean applyNewConfig(Resources res) {
28         int configChanges = mLastConfiguration.updateFrom(res.getConfiguration());
29         boolean densityChanged = mLastDensity != res.getDisplayMetrics().densityDpi;
30         if (densityChanged || (configChanges&(ActivityInfo.CONFIG_LOCALE
31                 |ActivityInfo.CONFIG_UI_MODE|ActivityInfo.CONFIG_SCREEN_LAYOUT)) != 0) {
32             mLastDensity = res.getDisplayMetrics().densityDpi;
33             return true;
34         }
35         return false;
36     }
37 }
38