recycle人view多条目以及多条目的点击事件

一实现多条目

注意创建adapter时继承

RecyclerView.Adapter不能添加viewholder泛型

如下

RecyclerView.Adapter<HomeAdapter.MyViewHolder>

如果添加泛型是无法使用多个viewholder的

1重写getviewtype事件

@Override

public int getItemViewType(int position) {

return 1;

}

其中的返回值是根据你的需要返回的

2加载布局其中viewtype是你的getviewtype的返回值

根据此值来判断加载哪个item布局

@Override

publicRecyclerView.ViewHolderonCreateViewHolder(ViewGroup parent, intviewType) {

if(viewType ==0) {

view= LayoutInflater.from(context).inflate(R.layout.item_recycler,parent, false);

MyViewHolder holder = newMyViewHolder(view);

returnholder;

}else{

view= LayoutInflater.from(context).inflate(R.layout.item2,parent, false);

MyViewHolder2 holder2 = newMyViewHolder2(view);

returnholder2;

}

}

3绑定赋值

根据你的getviewtype返回的值加载不同的viewholder

@Override

public void onBindViewHolder(RecyclerView.ViewHolder holder, intposition) {

if(getItemViewType(position)==0){

((MyViewHolder) holder).tv.setText(mDatas.get(position).getTitle());

// view.setOnClickListener(this);

}else{

((MyViewHolder2) holder).tv2.setText(mDatas.get(position).getAuthor());

Glide.with(context).load(mDatas.get(position).getPic_small()).into(((MyViewHolder2) holder).imageView);

}

// 多条目点击事件

holder.itemView.setTag(position);

holder.itemView.setOnClickListener(this);

}

4viewholder根据你的item写里面的findbyid只写了两个再多以此类推

classMyViewHolderextendsRecyclerView.ViewHolder {

TextViewtv;

publicMyViewHolder(View view) {

super(view);

tv= (TextView) view.findViewById(R.id.id_num);

}

}

classMyViewHolder2extendsRecyclerView.ViewHolder {

TextViewtv2;

ImageViewimageView;

publicMyViewHolder2(View view) {

super(view);

tv2= (TextView) view.findViewById(R.id.item2_text);

imageView= (ImageView) view.findViewById(R.id.item2_image);

}

}

二点击事件

多条目点击事件

步骤

adapter中

自定义一个继承自RecyclerView.Adapter的MyAdapter。

1.在MyAdapter中定义如下接口,模拟ListView的OnItemClickListener：

1.  //define interface
2.     public static interface OnItemClickListener {
3.         void onItemClick(View view , int position);
4.     }
5. 
   

2声明一个这个接口的变量

1.     private OnItemClickListener mOnItemClickListener = null;

此方法是要给适配器adapter添加接口

implements View.OnClickListener

3将点击事件转移给外面的调用者：

@Override

1.     public void onClick(View v) {
2.         if (mOnItemClickListener != null) {
3.             //注意这里使用getTag方法获取position
4.             mOnItemClickListener.onItemClick(v,(int)v.getTag());
5.         }
6.     }

4注意上面调用接口的onItemClick()中的v.getTag()方法，这需要在onBindViewHolder()方法中设置和item的position

@Override

public voidonBindViewHolder(RecyclerView.ViewHolder holder, intposition) {

if(getItemViewType(position) ==0) {

((MyViewHolder) holder).tv.setText(mDatas.get(position).getTitle());

// view.setOnClickListener(this);

}else{

((MyViewHolder2) holder).tv2.setText(mDatas.get(position).getAuthor());

Glide.with(context).load(mDatas.get(position).getPic_small()).into(((MyViewHolder2) holder).imageView);

}

// 多条目点击事件

holder.itemView.setTag(position);

holder.itemView.setOnClickListener(this);

}

5最后暴露给外面的调用者，定义一个设置Listener的方法（）：

1.  public void setOnItemClickListener(OnItemClickListener listener) {
2.         this.mOnItemClickListener = listener;
3.     }

6调用在mainactivity中

1.  mAdapter.setOnItemClickListener(new OnItemClickListener(){
2.             @Override    
3.             public void onItemClick(View view , int position){
4.                 Toast.makeText(MainActivity.this, data[position], 600).show();
5.             }
6.         });

完整的adapter

public classMainAdapterextendsXRecyclerView.AdapterimplementsView.OnClickListener {

Contextcontext;

List<JsonBean.SongListBean>mDatas;

Viewview;

//点击事件的接口

privateOnItemClickListenermOnItemClickListener=null;

publicMainAdapter(Context context,List<JsonBean.SongListBean> list) {

this.context= context;

this.mDatas= list;

}

@Override

publicRecyclerView.ViewHolderonCreateViewHolder(ViewGroup parent, intviewType) {

if(viewType ==0) {

view= LayoutInflater.from(context).inflate(R.layout.item_recycler,parent, false);

MyViewHolder holder = newMyViewHolder(view);

returnholder;

}else{

view= LayoutInflater.from(context).inflate(R.layout.item2,parent, false);

MyViewHolder2 holder2 = newMyViewHolder2(view);

returnholder2;

}

}

@Override

public void onBindViewHolder(RecyclerView.ViewHolder holder, intposition) {

if(getItemViewType(position) ==0) {

((MyViewHolder) holder).tv.setText(mDatas.get(position).getTitle());

// view.setOnClickListener(this);

}else{

((MyViewHolder2) holder).tv2.setText(mDatas.get(position).getAuthor());

Glide.with(context).load(mDatas.get(position).getPic_small()).into(((MyViewHolder2) holder).imageView);

}

// 多条目点击事件

holder.itemView.setTag(position);

holder.itemView.setOnClickListener(this);

}

@Override

public int getItemCount() {

returnmDatas.size();

}

@Override

public int getItemViewType(intposition) {

if(position %2==0) {

return0;

}else{

return1;

}

}

classMyViewHolderextendsRecyclerView.ViewHolder {

TextViewtv;

publicMyViewHolder(View view) {

super(view);

tv= (TextView) view.findViewById(R.id.id_num);

}

}

classMyViewHolder2extendsRecyclerView.ViewHolder {

TextViewtv2;

ImageViewimageView;

publicMyViewHolder2(View view) {

super(view);

tv2= (TextView) view.findViewById(R.id.item2_text);

imageView= (ImageView) view.findViewById(R.id.item2_image);

}

}

public static interface OnItemClickListener {

voidonItemClick(View view, int position);

}

public void setOnItemClickListener(OnItemClickListener listener) {

this.mOnItemClickListener= listener;

}

@Override

public void onClick(View v) {

if(mOnItemClickListener!=null) {

//注意这里使用getTag方法获取position

mOnItemClickListener.onItemClick(v,(int) v.getTag());

}

}

}