1/* 2 * Copyright (C) 2016 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 17package com.android.incallui.answerproximitysensor; 18 19import android.content.Context; 20import android.hardware.Sensor; 21import android.hardware.SensorEvent; 22import android.hardware.SensorEventListener; 23import android.hardware.SensorManager; 24import android.support.annotation.Nullable; 25import com.android.dialer.common.LogUtil; 26 27/** 28 * A fake PROXIMITY_SCREEN_OFF_WAKE_LOCK implemented by the app. It will use {@link 29 * PseudoScreenState} to fake a black screen when the proximity sensor is near. 30 */ 31public class PseudoProximityWakeLock implements AnswerProximityWakeLock, SensorEventListener { 32 33 private final Context context; 34 private final PseudoScreenState pseudoScreenState; 35 private final Sensor proximitySensor; 36 37 @Nullable private ScreenOnListener listener; 38 private boolean isHeld; 39 40 public PseudoProximityWakeLock(Context context, PseudoScreenState pseudoScreenState) { 41 this.context = context; 42 this.pseudoScreenState = pseudoScreenState; 43 pseudoScreenState.setOn(true); 44 proximitySensor = 45 context.getSystemService(SensorManager.class).getDefaultSensor(Sensor.TYPE_PROXIMITY); 46 } 47 48 @Override 49 public void acquire() { 50 isHeld = true; 51 context 52 .getSystemService(SensorManager.class) 53 .registerListener(this, proximitySensor, SensorManager.SENSOR_DELAY_NORMAL); 54 } 55 56 @Override 57 public void release() { 58 isHeld = false; 59 context.getSystemService(SensorManager.class).unregisterListener(this); 60 pseudoScreenState.setOn(true); 61 } 62 63 @Override 64 public boolean isHeld() { 65 return isHeld; 66 } 67 68 @Override 69 public void setScreenOnListener(ScreenOnListener listener) { 70 this.listener = listener; 71 } 72 73 @Override 74 public void onSensorChanged(SensorEvent sensorEvent) { 75 boolean near = sensorEvent.values[0] < sensorEvent.sensor.getMaximumRange(); 76 LogUtil.i("AnswerProximitySensor.PseudoProximityWakeLock.onSensorChanged", "near: " + near); 77 pseudoScreenState.setOn(!near); 78 if (!near && listener != null) { 79 listener.onScreenOn(); 80 } 81 } 82 83 @Override 84 public void onAccuracyChanged(Sensor sensor, int i) {} 85} 86