1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5  * except in compliance with the License. You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the
10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11  * KIND, either express or implied. See the License for the specific language governing
12  * permissions and limitations under the License.
13  */
14 
15 package com.android.systemui.statusbar.policy;
16 
17 import android.content.res.Configuration;
18 
19 import com.android.systemui.statusbar.policy.ConfigurationController.ConfigurationListener;
20 
21 /**
22  * Common listener for configuration or subsets of configuration changes (like density or
23  * font scaling), providing easy static dependence on these events.
24  */
25 public interface ConfigurationController extends CallbackController<ConfigurationListener> {
26 
27     interface ConfigurationListener {
onConfigChanged(Configuration newConfig)28         default void onConfigChanged(Configuration newConfig) {}
onDensityOrFontScaleChanged()29         default void onDensityOrFontScaleChanged() {}
30     }
31 }
32