1/*
2 * Copyright (C) 2014 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
17package com.android.keyguard;
18
19import android.content.Context;
20import android.util.AttributeSet;
21import android.view.View;
22import android.widget.LinearLayout;
23
24/**
25 * A linear layout which does not have overlapping renderings commands and therefore does not need a
26 * layer when alpha is changed.
27 */
28public class AlphaOptimizedLinearLayout extends LinearLayout
29{
30    public AlphaOptimizedLinearLayout(Context context) {
31        super(context);
32    }
33
34    public AlphaOptimizedLinearLayout(Context context, AttributeSet attrs) {
35        super(context, attrs);
36    }
37
38    public AlphaOptimizedLinearLayout(Context context, AttributeSet attrs, int defStyleAttr) {
39        super(context, attrs, defStyleAttr);
40    }
41
42    public AlphaOptimizedLinearLayout(Context context, AttributeSet attrs, int defStyleAttr,
43            int defStyleRes) {
44        super(context, attrs, defStyleAttr, defStyleRes);
45    }
46
47    @Override
48    public boolean hasOverlappingRendering() {
49        return false;
50    }
51}
52