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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/*
* 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 com.android.gesture.example;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.AdapterView.OnItemSelectedListener;
import com.android.gesture.Gesture;
import com.android.gesture.GestureLibrary;
import com.android.gesture.GestureOverlay;
import java.util.ArrayList;
import java.util.Collections;
/**
* GestureLibViewer gives an example on how to browse existing gestures and
* removing unwanted gestures.
*/
public class GestureLibViewer extends Activity {
private GestureOverlay mGesturePad;
private Spinner mGestureCategory;
private GestureLibrary mGesureLibrary;
private ArrayList<Gesture> mGestures;
private int mCurrentGestureIndex;
private class RemoveGestureListener implements OnClickListener {
public void onClick(View v) {
if (mGestures.isEmpty()) {
return;
}
String name = (String) mGestureCategory.getSelectedItem();
Gesture gesture = mGestures.get(mCurrentGestureIndex);
mGesureLibrary.removeGesture(name, gesture);
mGestures = mGesureLibrary.getGestures(name);
if (mGestures == null) {
// delete the entire entry
mCurrentGestureIndex = 0;
ArrayList<String> list = new ArrayList<String>();
list.addAll(mGesureLibrary.getGestureEntries());
Collections.sort(list);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(GestureLibViewer.this,
android.R.layout.simple_spinner_item, list);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mGestureCategory.setAdapter(adapter);
} else {
if (mCurrentGestureIndex > mGestures.size() - 1) {
mCurrentGestureIndex--;
}
gesture = mGestures.get(mCurrentGestureIndex);
mGesturePad.setCurrentGesture(gesture);
mGesturePad.invalidate();
}
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.gestureviewer);
// create the area for drawing a gesture
mGesturePad = (GestureOverlay) findViewById(R.id.drawingpad);
mGesturePad.setEnabled(false);
// init the gesture library
mGesureLibrary = new GestureLibrary(GestureEntry.GESTURE_FILE_NAME);
mGesureLibrary.load();
mGestureCategory = (Spinner) findViewById(R.id.spinner);
ArrayList<String> list = new ArrayList<String>();
if (!mGesureLibrary.getGestureEntries().isEmpty()) {
list.addAll(mGesureLibrary.getGestureEntries());
Collections.sort(list);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, list);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mGestureCategory.setAdapter(adapter);
mGestures = mGesureLibrary.getGestures(list.get(0));
mCurrentGestureIndex = 0;
Gesture gesture = mGestures.get(mCurrentGestureIndex);
mGesturePad.setCurrentGesture(gesture);
}
mGestureCategory.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
mGestures = mGesureLibrary.getGestures((String) mGestureCategory.getSelectedItem());
if (!mGestures.isEmpty()) {
mCurrentGestureIndex = 0;
Gesture gesture = mGestures.get(mCurrentGestureIndex);
mGesturePad.setCurrentGesture(gesture);
}
mGesturePad.invalidate();
}
public void onNothingSelected(AdapterView<?> parent) {
}
});
Button remove = (Button) findViewById(R.id.remove);
remove.setOnClickListener(new RemoveGestureListener());
Button next = (Button) findViewById(R.id.next);
next.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (mCurrentGestureIndex >= mGestures.size() - 1) {
return;
}
mCurrentGestureIndex++;
Gesture gesture = mGestures.get(mCurrentGestureIndex);
mGesturePad.setCurrentGesture(gesture);
mGesturePad.invalidate();
}
});
Button previous = (Button) findViewById(R.id.previous);
previous.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (mCurrentGestureIndex >= 1 && !mGestures.isEmpty()) {
mCurrentGestureIndex--;
Gesture gesture = mGestures.get(mCurrentGestureIndex);
mGesturePad.setCurrentGesture(gesture);
mGesturePad.invalidate();
}
}
});
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
mGesureLibrary.save();
setResult(RESULT_OK);
finish();
return true;
} else {
return false;
}
}
@Override
protected void onPause() {
super.onPause();
mGesureLibrary.save();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mGesureLibrary.save();
}
}
|
