项目中有需求，参考网上其他的文章写了一篇，有很多不足之处，可以参考，如果有更好的想法，欢迎指点。好了开始吧
1.recycleview的布局
<android.support..v7.widget.RecyclerView
android:id="@+id/wuliu_recyclerview"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
2.数据
public class WuLiuBean{
public WuLiuBean(String name,boolean isSelected) { this.name = name; setSelected(isSelected); }
private String name;
private boolean isSelected;
public StringgetName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public boolean isSelected() {
return isSelected;
}
public void setSelected(boolean selected) {
isSelected = selected;
}
}
3.activity中添加数据
List datas =new ArrayList<>();
List datasadd =new ArrayList<>();
for (int i =0; i <1; i++) {
datas.add(new WuLiuBean("快"));
datas.add(new WuLiuBean("你呢", i ==0 ?true :false));
datas.add(new WuLiuBean("方通"));
datas.add(new WuLiuBean("各种痛"));
datas.add(new WuLiuBean("天天"));
datas.add(new WuLiuBean("丽丽"));
}
datasadd .addAll(datas );
4.适配器布局
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="wrap_content" android:orientation="horizontal">
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/wuliu_rb_item"
android:textDirection="rtl"
android:gravity="center_vertical"
android:padding="10dp"/>
5适配器
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.TextView;
import java.util.List;
import cn.idcby.hwdemo.R;
import cn.idcby.hwdemo.activity.goods.SureGoodsActivity;
import cn.idcby.hwdemo.beans.WuLiuBean;
public class WuliuAdapterextends RecyclerView.Adapter {
private ListmDatas;
private ContextmContext;
private LayoutInflatermInflater;
private int mSelectedPos = -1;//实现单选 方法二，变量保存当前选中的position
private RecyclerViewmRv;//实现单选方法三： RecyclerView另一种定向刷新方法：
public WuliuAdapter(List datas, Context context, RecyclerView rv) {
mDatas = datas;
mContext = context;
mInflater = LayoutInflater.from(mContext);
mRv = rv;
// 设置数据集时，找到默认选中的pos
for (int i =0; i
if (mDatas.get(i).isSelected()) {
mSelectedPos = i;
}
}
}
@Override
public CouponVHonCreateViewHolder(ViewGroup parent, int viewType) {
return new CouponVH(mInflater.inflate(R.layout.item_wuliu_adapter, parent, false));
}
@Override
public void onBindViewHolder(final CouponVH holder, final int position) {
holder.mRB.setChecked(mDatas.get(position).isSelected());
holder.mRB.setText(mDatas.get(position).getName());
holder.mRB.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
CouponVH couponVH = (CouponVH)mRv.findViewHolderForLayoutPosition(mSelectedPos);
if (couponVH !=null) {
couponVH.mRB.setChecked(false);
}else {
notifyItemChanged(mSelectedPos);
}
mDatas.get(mSelectedPos).setSelected(false);
mSelectedPos =position;
mDatas.get(mSelectedPos).setSelected(true);
holder.mRB.setChecked(true);
if (subClickListener !=null) {
subClickListener.OntopicClickListener(mDatas.get(position), position);
}
}
});
if (mDatas.size()>0){
if (holder.mRB.isChecked()){
if (subClickListener !=null) {
subClickListener.OntopicClickListener(mDatas.get(position), position);
}
}
}
}
@Override
public void onBindViewHolder(final CouponVH holder, int position, List payloads) {
if (payloads.isEmpty()) {
onBindViewHolder(holder, position);
}else {
Bundle payload = (Bundle) payloads.get(0);
if (payload.containsKey("KEY_BOOLEAN")) {
final boolean aBoolean = payload.getBoolean("KEY_BOOLEAN");
holder.mRB.setChecked(aBoolean);
}
}
}
@Override
public int getItemCount() {
return null !=mDatas ?mDatas.size() :0;
}
public static class CouponVHextends RecyclerView.ViewHolder {
private RadioButtonmRB;
public CouponVH(View itemView) {
super(itemView);
mRB=(RadioButton)itemView.findViewById(R.id.wuliu_rb_item);
}
}
////////////////////////////
private SubClickListenersubClickListener;
public void setsubClickListener(SubClickListener topicClickListener) {
this.subClickListener = topicClickListener;
}
public interface SubClickListener {
void OntopicClickListener( WuLiuBean detail, int position);
}
}
6activity中
mRecyclerview.setLayoutManager(new LinearLayoutManager(this));
WuliuAdapter wuliuAdapter=new WuliuAdapter(datasadd , this, mRecyclerview);
mRecyclerview.setAdapter(wuliuAdapter);
wuliuAdapter.setsubClickListener(new WuliuAdapter.SubClickListener() {
@Override
public void OntopicClickListener( WuLiuBean detail, int position) {
if (detail!=null){
//拿到返回的数据做进一步的处理
ComToastUtils.showToast(mContext,detail.getName());
}
}
});
