1 /* 2 * Copyright (C) 2017 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.development; 18 19 import android.content.Context; 20 import android.os.SystemProperties; 21 import android.support.v14.preference.SwitchPreference; 22 import android.support.v7.preference.Preference; 23 import android.view.ThreadedRenderer; 24 25 import com.android.settings.core.PreferenceControllerMixin; 26 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 27 import com.android.settingslib.development.SystemPropPoker; 28 29 public class HardwareLayersUpdatesPreferenceController extends DeveloperOptionsPreferenceController 30 implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin { 31 32 private static final String SHOW_HW_LAYERS_UPDATES_KEY = "show_hw_layers_updates"; 33 HardwareLayersUpdatesPreferenceController(Context context)34 public HardwareLayersUpdatesPreferenceController(Context context) { 35 super(context); 36 } 37 38 @Override getPreferenceKey()39 public String getPreferenceKey() { 40 return SHOW_HW_LAYERS_UPDATES_KEY; 41 } 42 43 @Override onPreferenceChange(Preference preference, Object newValue)44 public boolean onPreferenceChange(Preference preference, Object newValue) { 45 final boolean isEnabled = (Boolean) newValue; 46 SystemProperties.set(ThreadedRenderer.DEBUG_SHOW_LAYERS_UPDATES_PROPERTY, 47 isEnabled ? "true" : null); 48 SystemPropPoker.getInstance().poke(); 49 return true; 50 } 51 52 @Override updateState(Preference preference)53 public void updateState(Preference preference) { 54 final boolean isEnabled = SystemProperties.getBoolean( 55 ThreadedRenderer.DEBUG_SHOW_LAYERS_UPDATES_PROPERTY, false /* default */); 56 ((SwitchPreference) mPreference).setChecked(isEnabled); 57 } 58 59 @Override onDeveloperOptionsSwitchDisabled()60 protected void onDeveloperOptionsSwitchDisabled() { 61 super.onDeveloperOptionsSwitchDisabled(); 62 SystemProperties.set(ThreadedRenderer.DEBUG_SHOW_LAYERS_UPDATES_PROPERTY, null); 63 ((SwitchPreference) mPreference).setChecked(false); 64 } 65 } 66