package com.kuanzhai.driver.base;
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import android.content.Context;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.Toast;
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import androidx.annotation.LayoutRes;
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import androidx.annotation.NonNull;
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import androidx.recyclerview.widget.RecyclerView;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Created by ts_xiaoA on 2019/9/24 13:01
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* E-Mail Address：443502578@qq.com
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* Desc: recyclerView baseAdapter 基于 DataBinding
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*/
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public abstract class BaseRvAdapter<DataEntity> extends RecyclerView.Adapter<BaseViewHolder> {
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public Context context;
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protected List<DataEntity> data;
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protected OnItemClickListener onItemClickListener;
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protected final String TAG = String.valueOf(this);
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private int headViewLayoutId = 0;
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private int footViewLayoutId = 0;
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private static final int TYPE_NORMAL = 7895;
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private static final int TYPE_HEADER = 7896;
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private static final int TYPE_FOOTER = 7897;
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public BaseRvAdapter() {
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this(null, null);
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}
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public BaseRvAdapter(Context context) {
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this(context, null);
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}
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public BaseRvAdapter(List<DataEntity> data) {
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this(null, data);
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}
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public BaseRvAdapter(Context context, List<DataEntity> items) {
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this.context = context;
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this.data = items;
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if (data == null) {
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data = new ArrayList<>();
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}
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}
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public void toast(String content){
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Toast.makeText(context, content, Toast.LENGTH_SHORT).show();
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}
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@Override
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public void onAttachedToRecyclerView(@NonNull RecyclerView recyclerView) {
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super.onAttachedToRecyclerView(recyclerView);
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if (this.context == null) {
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this.context = recyclerView.getContext();
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}
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}
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@NonNull
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@Override
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public BaseViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
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View view;
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switch (viewType) {
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case TYPE_HEADER:
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view = LayoutInflater.from(context).inflate(headViewLayoutId,parent,false);
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if (onHeaderViewCreator != null) {
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onHeaderViewCreator.onCreateView(view);
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}
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break;
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case TYPE_FOOTER:
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view = LayoutInflater.from(context).inflate(footViewLayoutId,parent);
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break;
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case TYPE_NORMAL:
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default:
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view = LayoutInflater.from(context).inflate(this.getLayoutResId(viewType),parent,false);
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}
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return new BaseViewHolder(view);
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}
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@Override
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public void onBindViewHolder(@NonNull BaseViewHolder holder, int position) {
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View view =holder.itemView;
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switch (getItemViewType(position)) {
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case TYPE_HEADER:
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if (onHeadViewBinder != null) {
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onHeadViewBinder.onBindHeadView(holder, view);
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}
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break;
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case TYPE_FOOTER:
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break;
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case TYPE_NORMAL:
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default:
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int dataPosition = headViewLayoutId == 0 ? holder.getLayoutPosition() : holder.getLayoutPosition() - 1;
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if (onItemClickListener != null) {
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holder.itemView.setOnClickListener(v -> onItemClickListener.onItemClick(v, dataPosition));
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}
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this.onBindItem(holder, view, data.size() > dataPosition ? data.get(dataPosition) : null);
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break;
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}
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}
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@Override
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public void onBindViewHolder(@NonNull BaseViewHolder holder, int position, @NonNull List<Object> payloads) {
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if (payloads.isEmpty()) {
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super.onBindViewHolder(holder, position, payloads);
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} else {
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View view = holder.itemView;
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int dataPosition = headViewLayoutId == 0 ? holder.getLayoutPosition() : holder.getLayoutPosition() - 1;
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onBindChangedItem(holder, view, data.size() > dataPosition ? data.get(dataPosition) : null);
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}
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}
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//局部刷新更新item中的某个指定控件数据或状态
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public void onBindChangedItem(BaseViewHolder holder, View view, DataEntity item) {
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}
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//局部刷新
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public void notifyItemChangedByPayLoads(int position) {
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notifyItemChanged(position, 0);
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}
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@LayoutRes
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protected abstract int getLayoutResId(int viewType);
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@Override
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public final int getItemViewType(int position) {
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if (isHeader(position)) {
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return TYPE_HEADER;
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} else if (isFooter(position)) {
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return TYPE_FOOTER;
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}
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int type = getDataItemViewType(headViewLayoutId == 0 ? position : position - 1);
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if (type == TYPE_HEADER || type == TYPE_FOOTER) {
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throw new IllegalArgumentException("Item type cannot equal " + TYPE_HEADER + " or " + TYPE_FOOTER);
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}
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return type;
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}
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protected int getDataItemViewType(int position) {
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return TYPE_NORMAL;
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}
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public boolean isHeader(int position) {
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return headViewLayoutId != 0 && position == 0;
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}
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public boolean isFooter(int position) {
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return footViewLayoutId != 0 && position == getItemCount() - 1;
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}
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//绑定数据
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protected abstract void onBindItem(BaseViewHolder holder, View view, DataEntity item);
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public List<DataEntity> getData() {
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if (data == null) {
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data = new ArrayList<>();
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}
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return data;
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}
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@Override
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public final int getItemCount() {
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int itemCount = 0;
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if (headViewLayoutId != 0) {
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itemCount++;
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}
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if (footViewLayoutId != 0) {
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itemCount++;
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}
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itemCount += getDataItemCount();
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return itemCount;
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}
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public int getDataItemCount() {
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return data.size();
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}
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public int getDataItemPosition(int position) {
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if (headViewLayoutId != 0) {
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return position - 1;
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} else {
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return position;
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}
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}
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public void setHeadView(@LayoutRes int layoutId) {
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if (layoutId == 0) {
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return;
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}
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if (this.headViewLayoutId != 0) {
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notifyItemRemoved(0);
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}
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this.headViewLayoutId = layoutId;
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notifyItemInserted(0);
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}
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public interface OnItemClickListener {
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void onItemClick(View view, int position);
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}
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public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
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this.onItemClickListener = onItemClickListener;
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}
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public OnItemClickListener getOnItemClickListener() {
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return onItemClickListener;
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}
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private OnHeadViewBinder onHeadViewBinder;
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public interface OnHeadViewBinder {
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void onBindHeadView(BaseViewHolder holder, View binding);
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}
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public void setOnHeadViewBinder(OnHeadViewBinder onHeadViewBinder) {
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this.onHeadViewBinder = onHeadViewBinder;
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}
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private OnHeaderViewCreator onHeaderViewCreator;
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public interface OnHeaderViewCreator {
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void onCreateView(View view);
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}
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public void setOnHeaderViewCreator(OnHeaderViewCreator onHeaderViewCreator) {
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this.onHeaderViewCreator = onHeaderViewCreator;
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}
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public void removeDataItem(int position) {
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if (headViewLayoutId != 0) {
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position += 1;
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}
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notifyItemRemoved(position);
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}
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public void notifyDateItemRangeChanged(int startPosition, int count) {
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if (headViewLayoutId != 0) {
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startPosition += 1;
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}
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notifyItemRangeChanged(startPosition, count);
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}
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public void removeDataItemAndRefresh(int position) {
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getData().remove(position);
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removeDataItem(position);
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notifyDateItemRangeChanged(position, getDataItemCount());
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}
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}
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