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.annotation.VisibleForTesting; 22 import android.support.v14.preference.SwitchPreference; 23 import android.support.v7.preference.Preference; 24 25 import com.android.settings.core.PreferenceControllerMixin; 26 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 27 28 public class BluetoothSnoopLogPreferenceController extends DeveloperOptionsPreferenceController 29 implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin { 30 31 private static final String PREFERENCE_KEY = "bt_hci_snoop_log"; 32 @VisibleForTesting 33 static final String BLUETOOTH_BTSNOOP_ENABLE_PROPERTY = 34 "persist.bluetooth.btsnoopenable"; 35 BluetoothSnoopLogPreferenceController(Context context)36 public BluetoothSnoopLogPreferenceController(Context context) { 37 super(context); 38 } 39 40 @Override getPreferenceKey()41 public String getPreferenceKey() { 42 return PREFERENCE_KEY; 43 } 44 45 @Override onPreferenceChange(Preference preference, Object newValue)46 public boolean onPreferenceChange(Preference preference, Object newValue) { 47 final boolean enableBtSnoopLog = (Boolean) newValue; 48 SystemProperties.set(BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, Boolean.toString(enableBtSnoopLog)); 49 return true; 50 } 51 52 @Override updateState(Preference preference)53 public void updateState(Preference preference) { 54 super.updateState(preference); 55 final boolean enableBtSnoopLog = SystemProperties.getBoolean( 56 BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, false /* def */); 57 ((SwitchPreference) mPreference).setChecked(enableBtSnoopLog); 58 } 59 60 @Override onDeveloperOptionsSwitchDisabled()61 protected void onDeveloperOptionsSwitchDisabled() { 62 super.onDeveloperOptionsSwitchDisabled(); 63 SystemProperties.set(BLUETOOTH_BTSNOOP_ENABLE_PROPERTY, Boolean.toString(false)); 64 ((SwitchPreference) mPreference).setChecked(false); 65 } 66 } 67