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
|
/*
* Copyright (C) 2011 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.launcher2;
import android.content.Context;
import android.view.MotionEvent;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.GridLayout;
/**
* The grid based layout used strictly for the widget/wallpaper tab of the AppsCustomize pane
*/
public class PagedViewGridLayout extends GridLayout implements Page {
static final String TAG = "PagedViewGridLayout";
private int mCellCountX;
private int mCellCountY;
public PagedViewGridLayout(Context context, int cellCountX, int cellCountY) {
super(context, null, 0);
mCellCountX = cellCountX;
mCellCountY = cellCountY;
}
int getCellCountX() {
return mCellCountX;
}
int getCellCountY() {
return mCellCountY;
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// PagedView currently has issues with different-sized pages since it calculates the
// offset of each page to scroll to before it updates the actual size of each page
// (which can change depending on the content if the contents aren't a fixed size).
// We work around this by having a minimum size on each widget page).
int widthSpecSize = Math.min(getSuggestedMinimumWidth(),
MeasureSpec.getSize(widthMeasureSpec));
int widthSpecMode = MeasureSpec.EXACTLY;
super.onMeasure(MeasureSpec.makeMeasureSpec(widthSpecSize, widthSpecMode),
heightMeasureSpec);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
boolean result = super.onTouchEvent(event);
int count = getPageChildCount();
if (count > 0) {
// We only intercept the touch if we are tapping in empty space after the final row
View child = getChildOnPageAt(count - 1);
int bottom = child.getBottom();
result = result || (event.getY() < bottom);
}
return result;
}
void destroyHardwareLayer() {
setLayerType(LAYER_TYPE_NONE, null);
}
void createHardwareLayer() {
setLayerType(LAYER_TYPE_HARDWARE, null);
}
@Override
public void removeAllViewsOnPage() {
removeAllViews();
destroyHardwareLayer();
}
@Override
public void removeViewOnPageAt(int index) {
removeViewAt(index);
}
@Override
public int getPageChildCount() {
return getChildCount();
}
@Override
public View getChildOnPageAt(int i) {
return getChildAt(i);
}
@Override
public int indexOfChildOnPage(View v) {
return indexOfChild(v);
}
public static class LayoutParams extends FrameLayout.LayoutParams {
public LayoutParams(int width, int height) {
super(width, height);
}
}
}
|
