1 /*
2  * Copyright 2021 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.quickstep.views;
18 
19 import android.content.Context;
20 import android.util.AttributeSet;
21 import android.util.FloatProperty;
22 import android.view.Gravity;
23 import android.widget.FrameLayout;
24 
25 import androidx.annotation.Nullable;
26 
27 public class SplitPlaceholderView extends FrameLayout {
28 
29     public static final FloatProperty<SplitPlaceholderView> ALPHA_FLOAT =
30             new FloatProperty<SplitPlaceholderView>("SplitViewAlpha") {
31                 @Override
32                 public void setValue(SplitPlaceholderView splitPlaceholderView, float v) {
33                     splitPlaceholderView.setVisibility(v != 0 ? VISIBLE : GONE);
34                     splitPlaceholderView.setAlpha(v);
35                 }
36 
37                 @Override
38                 public Float get(SplitPlaceholderView splitPlaceholderView) {
39                     return splitPlaceholderView.getAlpha();
40                 }
41             };
42 
43     @Nullable
44     private IconView mIconView;
45 
SplitPlaceholderView(Context context, AttributeSet attrs)46     public SplitPlaceholderView(Context context, AttributeSet attrs) {
47         super(context, attrs);
48     }
49 
50     @Nullable
getIconView()51     public IconView getIconView() {
52         return mIconView;
53     }
54 
setIconView(IconView iconView, int iconSize)55     public void setIconView(IconView iconView, int iconSize) {
56         if (mIconView == null) {
57             mIconView = new IconView(getContext());
58             addView(mIconView);
59         }
60         mIconView.setDrawable(iconView.getDrawable());
61         mIconView.setDrawableSize(iconSize, iconSize);
62         FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(iconView.getLayoutParams());
63         params.gravity = Gravity.CENTER;
64         mIconView.setLayoutParams(params);
65     }
66 }
67