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
|
/*
* 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 com.android.internal.widget;
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.View;
import android.view.MotionEvent;
import android.widget.LinearLayout;
/**
* Like a normal linear layout, but supports dispatching all otherwise unhandled
* touch events to a particular descendant. This is for the unlock screen, so
* that a wider range of touch events than just the lock pattern widget can kick
* off a lock pattern if the finger is eventually dragged into the bounds of the
* lock pattern view.
*/
public class LinearLayoutWithDefaultTouchRecepient extends LinearLayout {
private final Rect mTempRect = new Rect();
private View mDefaultTouchRecepient;
public LinearLayoutWithDefaultTouchRecepient(Context context) {
super(context);
}
public LinearLayoutWithDefaultTouchRecepient(Context context, AttributeSet attrs) {
super(context, attrs);
}
public void setDefaultTouchRecepient(View defaultTouchRecepient) {
mDefaultTouchRecepient = defaultTouchRecepient;
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
if (mDefaultTouchRecepient == null) {
return super.dispatchTouchEvent(ev);
}
if (super.dispatchTouchEvent(ev)) {
return true;
}
mTempRect.set(0, 0, 0, 0);
offsetRectIntoDescendantCoords(mDefaultTouchRecepient, mTempRect);
ev.setLocation(ev.getX() + mTempRect.left, ev.getY() + mTempRect.top);
return mDefaultTouchRecepient.dispatchTouchEvent(ev);
}
}
|
