1/* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15package com.android.settings.dashboard; 16 17import android.content.Context; 18import android.graphics.Canvas; 19import android.graphics.drawable.Drawable; 20import android.support.v4.view.ViewCompat; 21import android.support.v7.widget.RecyclerView; 22import android.support.v7.widget.RecyclerView.State; 23import android.support.v7.widget.RecyclerView.ViewHolder; 24import android.util.TypedValue; 25import android.view.View; 26import com.android.settings.R; 27 28public class DashboardDecorator extends RecyclerView.ItemDecoration { 29 30 private final Context mContext; 31 private final Drawable mDivider; 32 33 public DashboardDecorator(Context context) { 34 mContext = context; 35 TypedValue value = new TypedValue(); 36 mContext.getTheme().resolveAttribute(android.R.attr.listDivider, value, true); 37 mDivider = mContext.getDrawable(value.resourceId); 38 } 39 40 @Override 41 public void onDrawOver(Canvas c, RecyclerView parent, State state) { 42 final int childCount = parent.getChildCount(); 43 for (int i = 1; i < childCount; i++) { 44 final View child = parent.getChildAt(i); 45 final ViewHolder holder = parent.getChildViewHolder(child); 46 if (holder.getItemViewType() == R.layout.dashboard_category) { 47 if (parent.getChildViewHolder(parent.getChildAt(i - 1)).getItemViewType() 48 != R.layout.dashboard_tile) { 49 continue; 50 } 51 } else if (holder.getItemViewType() != R.layout.condition_card) { 52 continue; 53 } 54 55 int top = getChildTop(child); 56 mDivider.setBounds(child.getLeft(), top, child.getRight(), 57 top + mDivider.getIntrinsicHeight()); 58 mDivider.draw(c); 59 } 60 } 61 62 private int getChildTop(View child) { 63 final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child 64 .getLayoutParams(); 65 return child.getTop() + params.topMargin + Math.round(ViewCompat.getTranslationY(child)); 66 } 67} 68