blob: fe3fbe0cf878a44fcc935e23ab93fe5dc4817f75 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.incallui.answer.impl.classifier;
import android.util.SparseArray;
import android.view.MotionEvent;
import java.util.ArrayList;
import java.util.concurrent.TimeUnit;
/**
* Contains data which is used to classify interaction sequences on the lockscreen. It does, for
* example, provide information on the current touch state.
*/
class ClassifierData {
private SparseArray<Stroke> currentStrokes = new SparseArray<>();
private ArrayList<Stroke> endingStrokes = new ArrayList<>();
private final float dpi;
private final float screenHeight;
public ClassifierData(float dpi, float screenHeight) {
this.dpi = dpi;
this.screenHeight = screenHeight / dpi;
}
public void update(MotionEvent event) {
endingStrokes.clear();
int action = event.getActionMasked();
if (action == MotionEvent.ACTION_DOWN) {
currentStrokes.clear();
}
for (int i = 0; i < event.getPointerCount(); i++) {
int id = event.getPointerId(i);
if (currentStrokes.get(id) == null) {
// TODO (keyboardr): See if there's a way to use event.getEventTimeNanos() instead
currentStrokes.put(
id, new Stroke(TimeUnit.MILLISECONDS.toNanos(event.getEventTime()), dpi));
}
currentStrokes
.get(id)
.addPoint(
event.getX(i), event.getY(i), TimeUnit.MILLISECONDS.toNanos(event.getEventTime()));
if (action == MotionEvent.ACTION_UP
|| action == MotionEvent.ACTION_CANCEL
|| (action == MotionEvent.ACTION_POINTER_UP && i == event.getActionIndex())) {
endingStrokes.add(getStroke(id));
}
}
}
void cleanUp(MotionEvent event) {
endingStrokes.clear();
int action = event.getActionMasked();
for (int i = 0; i < event.getPointerCount(); i++) {
int id = event.getPointerId(i);
if (action == MotionEvent.ACTION_UP
|| action == MotionEvent.ACTION_CANCEL
|| (action == MotionEvent.ACTION_POINTER_UP && i == event.getActionIndex())) {
currentStrokes.remove(id);
}
}
}
/** @return the list of Strokes which are ending in the recently added MotionEvent */
public ArrayList<Stroke> getEndingStrokes() {
return endingStrokes;
}
/**
* @param id the id from MotionEvent
* @return the Stroke assigned to the id
*/
public Stroke getStroke(int id) {
return currentStrokes.get(id);
}
/** @return the height of the screen in inches */
public float getScreenHeight() {
return screenHeight;
}
}
|
