1 /* 2 * Copyright (C) 2012 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 android.os; 18 19 import android.media.AudioAttributes; 20 21 /** 22 * Vibrator implementation that does nothing. 23 * 24 * @hide 25 */ 26 public class NullVibrator extends Vibrator { 27 private static final NullVibrator sInstance = new NullVibrator(); 28 29 private NullVibrator() { 30 } 31 32 public static NullVibrator getInstance() { 33 return sInstance; 34 } 35 36 @Override 37 public boolean hasVibrator() { 38 return false; 39 } 40 41 @Override 42 public boolean hasAmplitudeControl() { 43 return false; 44 } 45 46 @Override 47 public void vibrate(int uid, String opPkg, 48 VibrationEffect effect, AudioAttributes attributes) { 49 } 50 51 @Override 52 public void cancel() { 53 } 54 } 55
