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
|
/*
* Copyright (C) 2021 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.launcher3.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.FrameLayout;
import androidx.annotation.Nullable;
/**
* View group managing the widget preview: either using a {@link WidgetImageView} or an actual
* {@link LauncherAppWidgetHostView}.
*/
public class WidgetCellPreview extends FrameLayout {
public WidgetCellPreview(Context context) {
this(context, null);
}
public WidgetCellPreview(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public WidgetCellPreview(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
super.onInterceptTouchEvent(ev);
return true;
}
/** Returns {@code true} if this container has a preview layout. */
public boolean hasPreviewLayout() {
for (int i = 0; i < getChildCount(); i++) {
if (getChildAt(i) instanceof LauncherAppWidgetHostView) {
return true;
}
}
return false;
}
/**
* Returns {@link LauncherAppWidgetHostView} if this container has a preview layout. Otherwise,
* returns null.
*/
@Nullable
public LauncherAppWidgetHostView getPreviewLayout() {
for (int i = 0; i < getChildCount(); i++) {
if (getChildAt(i) instanceof LauncherAppWidgetHostView) {
return (LauncherAppWidgetHostView) getChildAt(i);
}
}
return null;
}
}
|
