1 /* 2 * Copyright (C) 2011 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.launcher2; 18 19 import android.content.Context; 20 import android.graphics.Canvas; 21 import android.util.AttributeSet; 22 import android.widget.LinearLayout; 23 24 public class HolographicLinearLayout extends LinearLayout { 25 26 private final HolographicViewHelper mHolographicHelper; 27 HolographicLinearLayout(Context context)28 public HolographicLinearLayout(Context context) { 29 this(context, null); 30 } 31 HolographicLinearLayout(Context context, AttributeSet attrs)32 public HolographicLinearLayout(Context context, AttributeSet attrs) { 33 this(context, attrs, 0); 34 } 35 HolographicLinearLayout(Context context, AttributeSet attrs, int defStyle)36 public HolographicLinearLayout(Context context, AttributeSet attrs, int defStyle) { 37 super(context, attrs, defStyle); 38 39 setWillNotDraw(false); 40 mHolographicHelper = new HolographicViewHelper(context); 41 } 42 43 @Override onDraw(Canvas canvas)44 protected void onDraw(Canvas canvas) { 45 super.onDraw(canvas); 46 47 // One time call to generate the pressed/focused state -- must be called after 48 // measure/layout 49 mHolographicHelper.generatePressedFocusedStates(this); 50 } 51 } 52