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
|
/*
* Copyright (C) 2008 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.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.widget.ImageButton;
import android.widget.NumberPicker;
import com.android.internal.R;
/**
* This class exists purely to cancel long click events, that got
* started in NumberPicker
*/
class NumberPickerButton extends ImageButton {
private NumberPicker mNumberPicker;
public NumberPickerButton(Context context, AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
}
public NumberPickerButton(Context context, AttributeSet attrs) {
super(context, attrs);
}
public NumberPickerButton(Context context) {
super(context);
}
public void setNumberPicker(NumberPicker picker) {
mNumberPicker = picker;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
cancelLongpressIfRequired(event);
return super.onTouchEvent(event);
}
@Override
public boolean onTrackballEvent(MotionEvent event) {
cancelLongpressIfRequired(event);
return super.onTrackballEvent(event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_DPAD_CENTER)
|| (keyCode == KeyEvent.KEYCODE_ENTER)) {
cancelLongpress();
}
return super.onKeyUp(keyCode, event);
}
private void cancelLongpressIfRequired(MotionEvent event) {
if ((event.getAction() == MotionEvent.ACTION_CANCEL)
|| (event.getAction() == MotionEvent.ACTION_UP)) {
cancelLongpress();
}
}
private void cancelLongpress() {
if (R.id.increment == getId()) {
mNumberPicker.cancelIncrement();
} else if (R.id.decrement == getId()) {
mNumberPicker.cancelDecrement();
}
}
}
|
