/* * Copyright (C) 2016-2017 hejunlin <[email protected]> * Github:https://github.com/hejunlin2013/EpisodeListView * 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.hejunlin.episodelistview; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.TextView; import java.util.List; /** * Created by hejunlin on 2017/2/5. * blog: http://blog.csdn.net/hejjunlin */ public class ParentAdapter extends RecyclerView.Adapter<ParentAdapter.MyViewHolder> { private static final int GROUPS_COLUMN_COUNT = 10; private OnItemClickListener mItemClickListener; private OnItemFocusListener mItemFocusListener; private List<String> mDatas; private int parentWidth; private int itemWidth; private int mCurrentPosition; public ParentAdapter(List<String> datas) { mDatas = datas; } @Override public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = LayoutInflater.from(parent.getContext()) .inflate(R.layout.parent_item, parent, false); MyViewHolder holder = new MyViewHolder(view); parentWidth = parent.getMeasuredWidth(); itemWidth = (parentWidth - (holder.textView.getPaddingLeft() + holder.textView.getPaddingRight()) * (GROUPS_COLUMN_COUNT)) / GROUPS_COLUMN_COUNT + 1; return holder; } @Override public void onBindViewHolder(MyViewHolder holder, final int position) { holder.textView.setText(mDatas.get(position)); holder.textView.setWidth(itemWidth); holder.textView.setFocusable(true); holder.textView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mItemClickListener.onGroupItemClick(v, position); } }); holder.textView.setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { if (hasFocus) { mItemFocusListener.onGroupItemFocus(v, position, hasFocus); mCurrentPosition = position; } } }); } @Override public int getItemCount() { return mDatas.size(); } public List<String> getDatas() { return mDatas; } public int getCurrentPosition() { return mCurrentPosition; } public void setCurrentPosition(int position) { mCurrentPosition = position; } public void setOnItemFocusListener(OnItemFocusListener listener) { mItemFocusListener = listener; } public void setOnItemClickListener(OnItemClickListener listener) { mItemClickListener = listener; } class MyViewHolder extends RecyclerView.ViewHolder { TextView textView; public MyViewHolder(View view) { super(view); textView = (TextView) view.findViewById(R.id.item); } } public interface OnItemClickListener { void onGroupItemClick(View view, int position); } public interface OnItemFocusListener { void onGroupItemFocus(View view, int position, boolean hasFocus); } }