| /* |
| * Copyright (C) 2016 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.test.uibench.recyclerview; |
| |
| import android.content.Context; |
| import android.graphics.Color; |
| import androidx.recyclerview.widget.RecyclerView; |
| import android.util.TypedValue; |
| import android.view.ViewGroup; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class RvBoxAdapter extends RecyclerView.Adapter<RvBoxAdapter.ViewHolder> { |
| |
| private int mBackground; |
| |
| private List<String> mValues; |
| |
| public static class ViewHolder extends RecyclerView.ViewHolder { |
| public TextView mTextView; |
| |
| public ViewHolder(TextView v) { |
| super(v); |
| mTextView = v; |
| } |
| |
| @Override |
| public String toString() { |
| return super.toString() + " '" + mTextView.getText(); |
| } |
| } |
| |
| public RvBoxAdapter(Context context, String[] strings) { |
| TypedValue val = new TypedValue(); |
| if (context.getTheme() != null) { |
| context.getTheme().resolveAttribute( |
| android.R.attr.selectableItemBackground, val, true); |
| } |
| mBackground = val.resourceId; |
| mValues = new ArrayList<>(); |
| Collections.addAll(mValues, strings); |
| } |
| |
| @Override |
| public RvBoxAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { |
| final ViewHolder h = new ViewHolder(new TextView(parent.getContext())); |
| h.mTextView.setMinimumHeight(128); |
| h.mTextView.setPadding(20, 0, 20, 0); |
| h.mTextView.setFocusable(true); |
| h.mTextView.setBackgroundResource(mBackground); |
| RecyclerView.LayoutParams lp = new RecyclerView.LayoutParams( |
| ViewGroup.LayoutParams.WRAP_CONTENT, |
| ViewGroup.LayoutParams.WRAP_CONTENT); |
| lp.leftMargin = 10; |
| lp.rightMargin = 5; |
| lp.topMargin = 20; |
| lp.bottomMargin = 15; |
| h.mTextView.setLayoutParams(lp); |
| return h; |
| } |
| |
| @Override |
| public void onBindViewHolder(ViewHolder holder, int position) { |
| holder.mTextView.setText(position + ":" + mValues.get(position)); |
| holder.mTextView.setMinHeight((200 + mValues.get(position).length() * 10)); |
| holder.mTextView.setBackgroundColor(getBackgroundColor(position)); |
| } |
| |
| private int getBackgroundColor(int position) { |
| switch (position % 4) { |
| case 0: return Color.LTGRAY; |
| case 1: return Color.RED; |
| case 2: return Color.DKGRAY; |
| case 3: return Color.BLUE; |
| } |
| return Color.TRANSPARENT; |
| } |
| |
| @Override |
| public int getItemCount() { |
| return mValues.size(); |
| } |
| } |