ListView中加入RadioButton 当点击ListView的item时，选中里面的RadioButton

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ListView中加入RadioButton 当点击ListView的item时，选中里面的RadioButton

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item的布局xml

注意：android:descendantFocusability=”blocksDescendants”该属性的作用是直接覆盖子view的点击事件。不设置，子view就会获取到监听，item的监听将会失效

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"  android:layout_width="match_parent"
    android:layout_height="100dp"
    android:background="#ffffff"
    android:descendantFocusability="blocksDescendants"
    >
    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="100dp"
        android:layout_weight="1"
        android:gravity="center">
        <RadioButton

            android:id="@+id/item_group_member_checked"
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:layout_centerVertical="true"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"

            android:button="@null"
            />

    </LinearLayout>
    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="100dp"
        android:layout_weight="3"
        android:orientation="vertical"
        android:gravity="center_vertical">

            <TextView
                android:textSize="20sp"
                android:id="@+id/item_group_member_join_time"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="加入时间：2016-01-21"
                android:textColor="@color/comment_text_color_s"/>
    </LinearLayout>

</LinearLayout>

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activity的布局xml

<?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="match_parent">

        <ListView
            android:cacheColorHint="#00000000"
            android:id="@+id/proxy_group_member_list"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:focusable="false"
            android:dividerHeight="0.1dp"
            android:orientation="vertical"
            android:scrollbars="none">

        </ListView>

</LinearLayout>

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ListView的adapter java代码

注意：需要设置radioButton的setEnabled(false)否则 单点击radiobutton时，它的状态会保留下来

import android.media.Image;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RadioButton;
import android.widget.TextView;

import com.nbcbb.app.R;
import java.util.HashMap;


public class ListViewAdapter extends BaseAdapter{
    private List<String> data;
    private ViewHolder holder;
    private HashMap<String,Boolean> states=new HashMap<String,Boolean>();//记录所有radiobutton被点击的状态
    public ListViewAdapter(List<String> data){
    this.data=data;
}

    @Override
    public View getView(final int position,View convertView,ViewGroup parent){
        View view=convertView;
        if(view==null){
            convertView=getLayoutInflater().inflate(R.layout.item,parent,false);
        }else{
            holder=(ViewHolder)view.getTag();
        }
        holder=new ViewHolder();

        holder.mChoosed=(RadioButton)convertView.findViewById(R.id.item_group_member_checked);
        holder.mJoinTime=(TextView)convertView.findViewById(R.id.item_group_member_join_time);



        holder.mJoinTime.setText(data.get(position).get("jointime"));

        boolean res=false;
        if(getStates(position)==null||
                getStates(position)==false)//判断当前位置的radiobutton点击状态
        {
            res=false;
            setStates(position, false);

        }else{
            res=true;
        }
        holder.mChoosed.setChecked(res);   
        return convertView;
    }
    //用于在activity中重置所有的radiobutton的状态
    public void clearStates(int position){
        // 重置，确保最多只有一项被选中
        for(String key:states.keySet()){
            states.put(key,false);
        }
        states.put(String.valueOf(position), true);
    }
    //用于获取状态值
    public Boolean getStates(int position){
        return states.get(String.valueOf(position));
    }
    //设置状态值
    public void setStates(int position,boolean isChecked){
        states.put(String.valueOf(position),false);
    }

    class ViewHolder{
        TextView mJoinTime;
        RadioButton mChoosed;
    }
}

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ListView的监听函数

mDetailListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                transfer(view, position);


            }
        });

private void transfer(View view,int position) {      
        RadioButton mRB=(RadioButton)view.findViewById(R.id.item_group_member_checked);
        //每次选择一个item时都要清除所有的状态，防止出现多个被选中
        mAdapter.clearStates(position);
        Log.i("CZ","position:"+position+",states:"+mAdapter.getStates(position));
        mRB.setChecked(mAdapter.getStates(position));
        //刷新数据，调用getView刷新ListView
        mAdapter.notifyDataSetChanged();

    }

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