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      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.View;
     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 ShowLayoutBoundsPreferenceController extends DeveloperOptionsPreferenceController
     30         implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
     31 
     32     private static final String DEBUG_LAYOUT_KEY = "debug_layout";
     33 
     34     public ShowLayoutBoundsPreferenceController(Context context) {
     35         super(context);
     36     }
     37 
     38     @Override
     39     public String getPreferenceKey() {
     40         return DEBUG_LAYOUT_KEY;
     41     }
     42 
     43     @Override
     44     public boolean onPreferenceChange(Preference preference, Object newValue) {
     45         final boolean isEnabled = (Boolean) newValue;
     46         SystemProperties.set(View.DEBUG_LAYOUT_PROPERTY,
     47                 isEnabled ? Boolean.toString(true) : Boolean.toString(false));
     48         SystemPropPoker.getInstance().poke();
     49         return true;
     50     }
     51 
     52     @Override
     53     public void updateState(Preference preference) {
     54         final boolean isEnabled = SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY,
     55                 false /* default */);
     56         ((SwitchPreference) mPreference).setChecked(isEnabled);
     57     }
     58 
     59     @Override
     60     protected void onDeveloperOptionsSwitchDisabled() {
     61         super.onDeveloperOptionsSwitchDisabled();
     62         SystemProperties.set(View.DEBUG_LAYOUT_PROPERTY, Boolean.toString(false));
     63         ((SwitchPreference) mPreference).setChecked(false);
     64     }
     65 }
     66