1 /*
2  * Copyright (C) 2015 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.systemui.statusbar;
18 
19 import android.content.Context;
20 import android.util.AttributeSet;
21 import android.widget.Button;
22 
23 import com.android.systemui.animation.LaunchableView;
24 import com.android.systemui.animation.LaunchableViewDelegate;
25 
26 import kotlin.Unit;
27 
28 /**
29  * A Button which doesn't have overlapping drawing commands
30  */
31 public class AlphaOptimizedButton extends Button implements LaunchableView {
32     private LaunchableViewDelegate mDelegate = new LaunchableViewDelegate(this,
33             (visibility) -> {
34                 super.setVisibility(visibility);
35                 return Unit.INSTANCE;
36             });
37 
AlphaOptimizedButton(Context context)38     public AlphaOptimizedButton(Context context) {
39         super(context);
40     }
41 
AlphaOptimizedButton(Context context, AttributeSet attrs)42     public AlphaOptimizedButton(Context context, AttributeSet attrs) {
43         super(context, attrs);
44     }
45 
AlphaOptimizedButton(Context context, AttributeSet attrs, int defStyleAttr)46     public AlphaOptimizedButton(Context context, AttributeSet attrs, int defStyleAttr) {
47         super(context, attrs, defStyleAttr);
48     }
49 
AlphaOptimizedButton(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)50     public AlphaOptimizedButton(Context context, AttributeSet attrs, int defStyleAttr,
51             int defStyleRes) {
52         super(context, attrs, defStyleAttr, defStyleRes);
53     }
54 
55     @Override
hasOverlappingRendering()56     public boolean hasOverlappingRendering() {
57         return false;
58     }
59 
60     @Override
setShouldBlockVisibilityChanges(boolean block)61     public void setShouldBlockVisibilityChanges(boolean block) {
62         mDelegate.setShouldBlockVisibilityChanges(block);
63     }
64 
65     @Override
setVisibility(int visibility)66     public void setVisibility(int visibility) {
67         mDelegate.setVisibility(visibility);
68     }
69 }
70