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.provider.Settings; 21 import android.support.v7.preference.ListPreference; 22 import android.support.v7.preference.Preference; 23 import android.text.TextUtils; 24 25 import com.android.settings.R; 26 import com.android.settings.core.PreferenceControllerMixin; 27 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 28 29 public class SecondaryDisplayPreferenceController extends DeveloperOptionsPreferenceController 30 implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin { 31 32 private static final String OVERLAY_DISPLAY_DEVICES_KEY = "overlay_display_devices"; 33 34 private final String[] mListValues; 35 private final String[] mListSummaries; 36 SecondaryDisplayPreferenceController(Context context)37 public SecondaryDisplayPreferenceController(Context context) { 38 super(context); 39 40 mListValues = context.getResources().getStringArray(R.array.overlay_display_devices_values); 41 mListSummaries = context.getResources().getStringArray( 42 R.array.overlay_display_devices_entries); 43 } 44 45 @Override getPreferenceKey()46 public String getPreferenceKey() { 47 return OVERLAY_DISPLAY_DEVICES_KEY; 48 } 49 50 @Override onPreferenceChange(Preference preference, Object newValue)51 public boolean onPreferenceChange(Preference preference, Object newValue) { 52 writeSecondaryDisplayDevicesOption(newValue.toString()); 53 return true; 54 } 55 56 @Override updateState(Preference preference)57 public void updateState(Preference preference) { 58 updateSecondaryDisplayDevicesOptions(); 59 } 60 61 @Override onDeveloperOptionsSwitchDisabled()62 protected void onDeveloperOptionsSwitchDisabled() { 63 super.onDeveloperOptionsSwitchDisabled(); 64 writeSecondaryDisplayDevicesOption(null); 65 } 66 updateSecondaryDisplayDevicesOptions()67 private void updateSecondaryDisplayDevicesOptions() { 68 final String value = Settings.Global.getString(mContext.getContentResolver(), 69 Settings.Global.OVERLAY_DISPLAY_DEVICES); 70 int index = 0; // default 71 for (int i = 0; i < mListValues.length; i++) { 72 if (TextUtils.equals(value, mListValues[i])) { 73 index = i; 74 break; 75 } 76 } 77 final ListPreference listPreference = (ListPreference) mPreference; 78 listPreference.setValue(mListValues[index]); 79 listPreference.setSummary(mListSummaries[index]); 80 } 81 writeSecondaryDisplayDevicesOption(String newValue)82 private void writeSecondaryDisplayDevicesOption(String newValue) { 83 Settings.Global.putString(mContext.getContentResolver(), 84 Settings.Global.OVERLAY_DISPLAY_DEVICES, newValue); 85 updateSecondaryDisplayDevicesOptions(); 86 } 87 } 88