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 17 package com.android.incallui.answer.impl.classifier; 18 19 /** 20 * A classifier that looks at the speed of the stroke. It calculates the speed of a stroke in inches 21 * per second. 22 */ 23 class SpeedClassifier extends StrokeClassifier { 24 25 public SpeedClassifier(ClassifierData classifierData) {} 26 27 @Override 28 public String getTag() { 29 return "SPD"; 30 } 31 32 @Override 33 public float getFalseTouchEvaluation(Stroke stroke) { 34 float duration = stroke.getDurationSeconds(); 35 if (duration == 0.0f) { 36 return SpeedEvaluator.evaluate(0.0f); 37 } 38 return SpeedEvaluator.evaluate(stroke.getTotalLength() / duration); 39 } 40 } 41
