/* * Copyright (C) 2014 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.keyguard; import android.content.Context; import android.util.AttributeSet; import android.view.View; import android.widget.LinearLayout; /** * A linear layout which does not have overlapping renderings commands and therefore does not need a * layer when alpha is changed. */ public class AlphaOptimizedLinearLayout extends LinearLayout { public AlphaOptimizedLinearLayout(Context context) { super(context); } public AlphaOptimizedLinearLayout(Context context, AttributeSet attrs) { super(context, attrs); } public AlphaOptimizedLinearLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } public AlphaOptimizedLinearLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); } @Override public boolean hasOverlappingRendering() { return false; } }