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
|
/*
* Copyright (C) 2008-2009 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 android.gesture;
import java.util.ArrayList;
/**
* The abstract class of a gesture learner
*/
abstract class Learner {
private final ArrayList<Instance> mInstances = new ArrayList<Instance>();
/**
* Add an instance to the learner
*
* @param instance
*/
void addInstance(Instance instance) {
mInstances.add(instance);
}
/**
* Retrieve all the instances
*
* @return instances
*/
ArrayList<Instance> getInstances() {
return mInstances;
}
/**
* Remove an instance based on its id
*
* @param id
*/
void removeInstance(long id) {
ArrayList<Instance> instances = mInstances;
int count = instances.size();
for (int i = 0; i < count; i++) {
Instance instance = instances.get(i);
if (id == instance.id) {
instances.remove(instance);
return;
}
}
}
/**
* Remove all the instances of a category
*
* @param name the category name
*/
void removeInstances(String name) {
final ArrayList<Instance> toDelete = new ArrayList<Instance>();
final ArrayList<Instance> instances = mInstances;
final int count = instances.size();
for (int i = 0; i < count; i++) {
final Instance instance = instances.get(i);
// the label can be null, as specified in Instance
if ((instance.label == null && name == null)
|| (instance.label != null && instance.label.equals(name))) {
toDelete.add(instance);
}
}
instances.removeAll(toDelete);
}
abstract ArrayList<Prediction> classify(int sequenceType, int orientationType, float[] vector);
}
|
