1 /*
2  * Copyright (C) 2013 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.documentsui;
18 
19 import android.content.Context;
20 import android.graphics.Canvas;
21 import android.util.AttributeSet;
22 import android.view.View;
23 import android.widget.FrameLayout;
24 
25 import java.util.ArrayList;
26 
27 public class DirectoryContainerView extends FrameLayout {
28     private boolean mDisappearingFirst = false;
29 
DirectoryContainerView(Context context)30     public DirectoryContainerView(Context context) {
31         super(context);
32     }
33 
DirectoryContainerView(Context context, AttributeSet attrs)34     public DirectoryContainerView(Context context, AttributeSet attrs) {
35         super(context, attrs);
36     }
37 
38     @Override
dispatchDraw(Canvas canvas)39     protected void dispatchDraw(Canvas canvas) {
40         final ArrayList<View> disappearing = mDisappearingChildren;
41         if (mDisappearingFirst && disappearing != null) {
42             for (int i = 0; i < disappearing.size(); i++) {
43                 super.drawChild(canvas, disappearing.get(i), getDrawingTime());
44             }
45         }
46         super.dispatchDraw(canvas);
47     }
48 
49     @Override
drawChild(Canvas canvas, View child, long drawingTime)50     protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
51         if (mDisappearingFirst && mDisappearingChildren != null
52                 && mDisappearingChildren.contains(child)) {
53             return false;
54         }
55         return super.drawChild(canvas, child, drawingTime);
56     }
57 
setDrawDisappearingFirst(boolean disappearingFirst)58     public void setDrawDisappearingFirst(boolean disappearingFirst) {
59         mDisappearingFirst = disappearingFirst;
60     }
61 }
62