| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file |
| * except in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the |
| * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the specific language governing |
| * permissions and limitations under the License. |
| */ |
| |
| package com.android.systemui.statusbar.phone; |
| |
| import android.content.Context; |
| import android.content.res.Configuration; |
| |
| import com.android.systemui.ConfigurationChangedReceiver; |
| import com.android.systemui.statusbar.policy.ConfigurationController; |
| |
| import java.util.ArrayList; |
| |
| public class ConfigurationControllerImpl implements ConfigurationController, |
| ConfigurationChangedReceiver { |
| |
| private final ArrayList<ConfigurationListener> mListeners = new ArrayList<>(); |
| private int mDensity; |
| private float mFontScale; |
| |
| public ConfigurationControllerImpl(Context context) { |
| Configuration currentConfig = context.getResources().getConfiguration(); |
| mFontScale = currentConfig.fontScale; |
| mDensity = currentConfig.densityDpi; |
| } |
| |
| @Override |
| public void onConfigurationChanged(Configuration newConfig) { |
| mListeners.forEach(l -> l.onConfigChanged(newConfig)); |
| final float fontScale = newConfig.fontScale; |
| final int density = newConfig.densityDpi; |
| if (density != mDensity || mFontScale != fontScale) { |
| mListeners.forEach(l -> l.onDensityOrFontScaleChanged()); |
| mDensity = density; |
| mFontScale = fontScale; |
| } |
| } |
| |
| @Override |
| public void addCallback(ConfigurationListener listener) { |
| mListeners.add(listener); |
| listener.onDensityOrFontScaleChanged(); |
| } |
| |
| @Override |
| public void removeCallback(ConfigurationListener listener) { |
| mListeners.remove(listener); |
| } |
| } |