1/* 2 * Copyright (C) 2016 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.launcher3.keyboard; 18 19import android.graphics.Canvas; 20import android.support.v7.widget.RecyclerView; 21import android.support.v7.widget.RecyclerView.ItemDecoration; 22import android.support.v7.widget.RecyclerView.State; 23import android.view.View; 24import android.view.View.OnFocusChangeListener; 25 26import com.android.launcher3.keyboard.FocusIndicatorHelper.SimpleFocusIndicatorHelper; 27 28/** 29 * {@link ItemDecoration} for drawing and animating focused view background. 30 */ 31public class FocusedItemDecorator extends ItemDecoration { 32 33 private FocusIndicatorHelper mHelper; 34 35 public FocusedItemDecorator(View container) { 36 mHelper = new SimpleFocusIndicatorHelper(container); 37 } 38 39 public OnFocusChangeListener getFocusListener() { 40 return mHelper; 41 } 42 43 @Override 44 public void onDraw(Canvas c, RecyclerView parent, State state) { 45 mHelper.draw(c); 46 } 47} 48