android实现RecyclerView列表单选功能

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"  android:layout_width="match_parent"  android:layout_height="wrap_content">  <LinearLayout    android:id="@+id/DeviceList_Layout"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:padding="20dp">    <ImageView      android:id="@+id/DeviceList_ImageView"      android:layout_width="50dp"      android:layout_height="wrap_content"      android:src="@mipmap/preview_image_boy"      android:layout_gravity="center"/>    <TextView      android:id="@+id/DeviceList_NameText"      android:layout_width="200dp"      android:layout_height="wrap_content"      android:text="名称"      android:textSize="@dimen/BigTextSize"      android:textColor="@color/colorBlue"      android:layout_gravity="center"      android:layout_marginLeft="20dp"      android:maxLines="1"/>    <ImageView      android:id="@+id/DeviceList_Select"      android:layout_width="50dp"      android:layout_height="wrap_content"      android:src="@mipmap/ic_select"      android:visibility="invisible"      android:layout_marginLeft="10dp"      android:layout_gravity="center"/>  </LinearLayout>  <LinearLayout    android:layout_width="match_parent"    android:layout_height="1px"    android:background="@color/colorBlue"    android:layout_marginLeft="20dp"    android:layout_marginRight="20dp">  </LinearLayout></LinearLayout>

package com.example.lenovo.mydemoapp.myDeviceList;  import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView; import com.example.lenovo.mydemoapp.R; import java.util.List; /** * Created by lenovo on 2018/5/18. */ public class DeivceListAdapter extends RecyclerView.Adapter<DeivceListAdapter.ViewHolder> {  private List<DeivceListData> mList;  private int mposition = -1;   public class ViewHolder extends RecyclerView.ViewHolder {    ImageView mListImage,mListSelect;    TextView mListNameText;    LinearLayout mListLayout;     public ViewHolder(View itemView) {      super(itemView);      mListImage = (ImageView)itemView.findViewById(R.id.DeviceList_ImageView);      mListNameText = (TextView)itemView.findViewById(R.id.DeviceList_NameText);      mListLayout = (LinearLayout)itemView.findViewById(R.id.DeviceList_Layout);      mListSelect = (ImageView)itemView.findViewById(R.id.DeviceList_Select);     }  }  public DeivceListAdapter (List<DeivceListData> list){    this.mList = list;   }  @Override  public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.device_list_row_layout,parent,false);    final ViewHolder holder = new ViewHolder(view);     /*    添加选中的打勾显示     */    holder.mListLayout.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View v) {        //将点击的位置传出去        mposition = holder.getAdapterPosition();        //在点击监听里最好写入setVisibility(View.VISIBLE);这样可以避免效果会闪        holder.mListSelect.setVisibility(View.VISIBLE);        //刷新界面 notify 通知Data 数据set设置Changed变化        //在这里运行notifyDataSetChanged 会导致下面的onBindViewHolder 重新加载一遍        notifyDataSetChanged();      }    });    return holder;  }   @Override  public void onBindViewHolder(ViewHolder holder, int position) {     DeivceListData deivceListData = mList.get(position);    holder.mListImage.setImageResource(deivceListData.getmDeviceListDataImage());    holder.mListNameText.setText(deivceListData.getmDeviceListDataNameText());    /*    onBindViewHolder 方法可能是在class里for添加了其他视图    引入mposition与当前的position判断，判断在点击的位置上显示打勾图片，在其他位置上不显示打勾     */    if (position == mposition) {      holder.mListSelect.setVisibility(View.VISIBLE);    } else {      holder.mListSelect.setVisibility(View.INVISIBLE);    }  }  @Override  public int getItemCount() {    return mList.size();  }  }