Android 中RecycleView实现item的点击事件

android 中recycleview实现item的点击事件

recycleview现在已经越来越受到大家的重视，因为他既可以代替listview还可以代替gridview，但是recycleview本身不不像listview那样具有setonitemclicklistener,这个关于子item的点击，但是我们往往会用到recycleview并且希望他的自孩子可以被点击，那么如何实现他的item的点击事件呢？

首先我们在recyclerview.viewholder中的实现：

public class gridviewholder extends recyclerview.viewholder implements onclicklistener{
  
  //声明myitemclicklistener
  private myitemclicklistener mlistener; 
  public gridviewholder(view rootview,myitemclicklistener listener) {
    super(rootview);
    this.mlistener = listener; 
    rootview.setonclicklistener(this);
    
  }
  @override
  public void onclick(view v) {
//如果mlistener不为空，就实现接口中的方法onitemclick其中getposition()是得到被点击位置的position
     if(mlistener != null){ 
        mlistener.onitemclick(v,getposition()); 
      } 
  }
   
//声明myitemclicklistener这个接口
    public interface myitemclicklistener { 
    public void onitemclick(view view,int postion); 
  } 
}

最后在recyclerviewadapter中实现：

package com.ledon.activity.adapter;

import java.util.arraylist;
import java.util.list;

import com.ledon.activity.adapter.gridviewholder.myitemclicklistener;
import com.ledon.ledongym.r;
import com.lidroid.xutils.bitmaputils;

import android.content.context;
import android.support.v7.widget.recyclerview;
import android.text.textutils;
import android.view.layoutinflater;
import android.view.view;
import android.view.view.onclicklistener;
import android.view.viewgroup;

public class recyclerviewadapter extends recyclerview.adapter<gridviewholder> {
  private final list<string> labels;
  private layoutinflater mlayoutinflater;
  private context context;
  private myitemclicklistener mitemclicklistener;

  
  public recyclerviewadapter(int count, context context) {
    this.labels = new arraylist<string>(count);
    mlayoutinflater = layoutinflater.from(context);
    for (int i = 0; i < count; i++) {
      labels.add(string.valueof(i));
    }
  }

  @override
  public int getitemcount() {
    return labels.size();
  }

  

  @override
  public void onbindviewholder(gridviewholder viewholder, int position) {
    viewholder.itemview.settag(labels.get(position));
   

  }

  @override
  public gridviewholder oncreateviewholder(viewgroup parent, int viewtype) {
    
    view view = null;
   
    view = mlayoutinflater.inflate(r.layout.item_userinfo, parent, false);
   //通过构造函数将mitemclicklistener
    gridviewholder holder = new gridviewholder(view, mitemclicklistener);
    return holder;
  }

  /**
   * 设置item点击监听
   * 
   * @param listener
   */
  public void setonitemclicklistener(myitemclicklistener listener) {
    this.mitemclicklistener = listener;
  }

  
  
}

最后在activity中

//根据adapter来设置item的点击事件
    recyclerviewadapter.setonitemclicklistener(new myitemclicklistener() {
      
      @override
      public void onitemclick(view view, int postion) {
        
      }
    });

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