Android listview内的单选按钮

我正在listview中将RadioGroup用作行项目。RadioGroup有5个单选按钮，我有1000行。我无法管理单选按钮的状态。我已尝试使用地图存储位置并检查状态。我甚至尝试使用setTag（）和getTag（）创建类并保存选中状态和单选按钮id。还没有运气。有什么建议吗

代码

适配器类

package com.example.adapters;

import java.util.List;
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;
import com.example.android.R;
import com.example.models.AnswerStateModel;

public class AnswerKeyAdapter extends ArrayAdapter<AnswerStateModel> {

    private Activity activity;
    private List<AnswerStateModel> test;
    Toast t = null;


    public AnswerKeyAdapter(Activity activity, List<AnswerStateModel> temp) {
        super(activity, R.layout.row_item_answer_key, temp);
        this.activity = activity;
        this.test = temp;
    }

    @Override
    public int getCount() {
        return test.size();
    }

    @Override
    public AnswerStateModel getItem(int position) {
        return test.get(position);
    }
    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        final int currentPosition=position;
        View view=null;
        if (convertView == null) {
            final ViewHolder holder = new ViewHolder();
            view = LayoutInflater.from(activity).inflate(
                    R.layout.row_item_answer_key, parent,false);
            holder.lblAnswerId = (TextView) view.findViewById(R.id.lblAnswerId);
            holder.rdGroup = (RadioGroup)view.findViewById(R.id.rdGroup);
            holder.btnA = (RadioButton) view.findViewById(R.id.btnA);
            holder.btnB = (RadioButton) view.findViewById(R.id.btnB);
            holder.btnC = (RadioButton) view.findViewById(R.id.btnC);
            holder.btnD = (RadioButton) view.findViewById(R.id.btnD);
            holder.btnE = (RadioButton) view.findViewById(R.id.btnE);
            holder.btnWhat = (Button) view.findViewById(R.id.btnWhat);

            view.setTag(holder);
            holder.rdGroup.setTag(test.get(position));



holder.rdGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group,
                    int checkedId) {
                    AnswerStateModel model=(AnswerStateModel) holder.rdGroup.getTag();

                    switch (checkedId) {
                    case R.id.btnA:
                        model.setChecked(holder.btnA.isChecked());
                        model.setBtnId(holder.btnA.getId());
                        break;
                    case R.id.btnB:
                        model.setChecked(holder.btnB.isChecked());
                        model.setBtnId(holder.btnB.getId());
                        break;
                    case R.id.btnC:
                        model.setChecked(holder.btnC.isChecked());
                        model.setBtnId(holder.btnC.getId());
                        break;
                    case R.id.btnD:
                        model.setChecked(holder.btnD.isChecked());
                        model.setBtnId(holder.btnD.getId());
                        break;
                    case R.id.btnE:
                        model.setChecked(holder.btnE.isChecked());
                        model.setBtnId(holder.btnE.getId());
                        break;
                    default:
                        break;
                    }
                }
            });


        } else{

            view=convertView;
            ((ViewHolder) view.getTag()).rdGroup.setTag(test.get(position));

        }


        final ViewHolder holder = (ViewHolder) view.getTag();

        AnswerStateModel model=(AnswerStateModel)getItem(currentPosition);

        holder.btnA.setChecked(false);
        holder.btnB.setChecked(false);
        holder.btnC.setChecked(false);
        holder.btnD.setChecked(false);
        holder.btnE.setChecked(false);

        switch (model.getBtnId()) {
        case R.id.btnA:
            holder.btnA.setChecked(test.get(position).isChecked());
            break;
        case R.id.btnB:
            holder.btnB.setChecked(test.get(position).isChecked());
            break;
        case R.id.btnC:
            holder.btnC.setChecked(test.get(position).isChecked());
            break;
        case R.id.btnD:
            holder.btnD.setChecked(test.get(position).isChecked());
            break;
        case R.id.btnE:
            holder.btnE.setChecked(test.get(position).isChecked());
            break;
        default:
            break;
        }   

        holder.lblAnswerId.setText(position+1+"");

        holder.btnWhat.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                if (v.isSelected())
                    v.setSelected(false);
                else
                    v.setSelected(true);
            }
        });

        return view;
    }

    private static class ViewHolder {
        private TextView lblAnswerId;
        private RadioButton btnA;
        private RadioButton btnB;
        private RadioButton btnC;
        private RadioButton btnD;
        private RadioButton btnE;
        private RadioGroup rdGroup;
        private Button btnWhat;
    }

    void showToast(String text) {

        if (t != null)
            t.cancel();

        t = Toast.makeText(activity, text, Toast.LENGTH_SHORT);
        t.show();
    }
}

解决了！使用

这是完整的代码

/**
 * 
 */

package com.example.adapters;

import java.util.ArrayList;

import android.app.Activity;
import android.util.SparseIntArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TextView;
import android.widget.Toast;
import com.example.android.R;
import com.example.models.AnswerStateModel;
import com.example.utils.Config;

public class AnswerKeyAdapter extends ArrayAdapter<AnswerStateModel> {

    private Activity activity;
    private ArrayList<AnswerStateModel> mAnswerList;
    Toast t = null;
    private SparseIntArray mSpCheckedState=new SparseIntArray();

    public AnswerKeyAdapter(Activity activity, ArrayList<AnswerStateModel> mAnswerList) {
        super(activity, R.layout.row_item_answer_key, mAnswerList);
        this.activity = activity;
        this.mAnswerList = mAnswerList;
    }

    @Override
    public int getCount() {
        return mAnswerList.size();
    }

    @Override
    public AnswerStateModel getItem(int position) {
        return mAnswerList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }


    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        ViewHolder holder=null;
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = LayoutInflater.from(activity).inflate(
                    R.layout.row_item_answer_key, parent, false);
            holder.lblAnswerId = (TextView) convertView.findViewById(R.id.lblAnswerId);
            holder.rdGroup = (RadioGroup) convertView.findViewById(R.id.rdGroup);
            holder.btnA = (RadioButton) convertView.findViewById(R.id.btnA);
            holder.btnB = (RadioButton) convertView.findViewById(R.id.btnB);
            holder.btnC = (RadioButton) convertView.findViewById(R.id.btnC);
            holder.btnD = (RadioButton) convertView.findViewById(R.id.btnD);
            holder.btnE = (RadioButton) convertView.findViewById(R.id.btnE);
            holder.btnWhat = (Button) convertView.findViewById(R.id.btnWhat);
            convertView.setTag(holder);

        } else {
            holder=(ViewHolder)convertView.getTag();
        }

        holder.rdGroup.setOnCheckedChangeListener(null);
        holder.rdGroup.clearCheck();

        Config.error("Spars "+mSpCheckedState.get(position));
        if(mSpCheckedState.indexOfKey(position)>-1){
            holder.rdGroup.check(mSpCheckedState.get(position));
        }else{
            holder.rdGroup.clearCheck();
        }

        holder.rdGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                if(checkedId>-1){
                    mSpCheckedState.put(position, checkedId);
                }else{
                    if(mSpCheckedState.indexOfKey(position)>-1)
                        mSpCheckedState.removeAt(mSpCheckedState.indexOfKey(position));
                }               
            }
        });



        Config.error("Current Position " + position);
        holder.lblAnswerId.setText(position + 1 + "");

        holder.btnWhat.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                if (v.isSelected())
                    v.setSelected(false);
                else
                    v.setSelected(true);
            }
        });

        return convertView;
    }

    private static class ViewHolder {
        private TextView lblAnswerId;
        private RadioButton btnA;
        private RadioButton btnB;
        private RadioButton btnC;
        private RadioButton btnD;
        private RadioButton btnE;
        private RadioGroup rdGroup;
        private Button btnWhat;
    }

    void showToast(String text) {

        if (t != null)
            t.cancel();

        t = Toast.makeText(activity, text, Toast.LENGTH_SHORT);
        t.show();
    }
}

/**
* 
*/
包com.example.adapters；
导入java.util.ArrayList；
导入android.app.Activity；
导入android.util.SparseIntArray；
导入android.view.LayoutInflater；
导入android.view.view；
导入android.view.view.OnClickListener；
导入android.view.ViewGroup；
导入android.widget.ArrayAdapter；
导入android.widget.Button；
导入android.widget.RadioButton；
导入android.widget.RadioGroup；
导入android.widget.RadioGroup.OnCheckedChangeListener；
导入android.widget.TextView；
导入android.widget.Toast；
导入com.example.android.R；
导入com.example.models.AnswerStateModel；
导入com.example.utils.Config；
公共类AnswerKeyAdapter扩展了ArrayAdapter{
私人活动；
私人ArrayList mAnswerList；
t=null；
专用SparseIntArray mSpCheckedState=新SparseIntArray（）；
公共应答器密钥适配器（活动活动，ArrayList mAnswerList）{
超级（活动、R.layout.row\u项目、答案、mAnswerList）；
这个。活动=活动；
this.mAnswerList=mAnswerList；
}
@凌驾
public int getCount（）{
返回mAnswerList.size（）；
}
@凌驾
公共应答状态模型getItem（内部位置）{
返回mAnswerList.get（位置）；
}
@凌驾
公共长getItemId（int位置）{
返回0；
}
@凌驾
公共视图getView（最终整数位置、视图转换视图、视图组父视图）{
ViewHolder=null；
if（convertView==null）{
holder=新的ViewHolder（）；
convertView=LayoutFlater.from（活动）。充气(
R.layout.row\u item\u answer\u key，parent，false）；
holder.lblAnswerId=（TextView）convertView.findViewById（R.id.lblAnswerId）；
holder.rdGroup=（RadioGroup）convertView.findViewById（R.id.rdGroup）；
holder.btnA=（单选按钮）convertView.findViewById（R.id.btnA）；
holder.btnB=（单选按钮）convertView.findViewById（R.id.btnB）；
holder.btnC=（单选按钮）convertView.findViewById（R.id.btnC）；
holder.btnD=（单选按钮）convertView.findViewById（R.id.btnD）；
holder.btnE=（单选按钮）convertView.findViewById（R.id.btnE）；
holder.btnWhat=（按钮）convertView.findViewById（R.id.btnWhat）；
convertView.setTag（支架）；
}否则{
holder=（ViewHolder）convertView.getTag（）；
}
holder.rdGroup.setOnCheckedChangeListener（null）；
holder.rdGroup.clearCheck（）；
配置错误（“Spars”+mSpCheckedState.get（位置））；
如果（mSpCheckedState.indexOfKey（位置）>-1）{
holder.rdGroup.check（mSpCheckedState.get（position））；
}否则{
holder.rdGroup.clearCheck（）；
}
holder.rdGroup.setOnCheckedChangeListener（新的OnCheckedChangeListener（）{
@凌驾
检查更改后的公共无效（RadioGroup组，int checkedId）{
如果（检查EDID>-1）{
mSpCheckedState.put（位置，checkedd）；
}否则{
如果（mSpCheckedState.indexOfKey（位置）>-1）
mSpCheckedState.removeAt（mSpCheckedState.indexOfKey（position））；
}               
}
});
配置错误（“当前位置”+位置）；
holder.lblAnswerId.setText（位置+1+“”）；
holder.btnWhat.setOnClickListener（新的OnClickListener（）{
@凌驾
公共void onClick（视图v）{
如果（v.isSelected（））
v、 已选择（假）；
其他的
v、 已选择（正确）；
}
});
返回视图；
}
私有静态类视图持有者{
私有文本视图lblAnswerId；
私人无线按钮；
私人无线按钮btnB；
专用无线按钮btnC；
专用单选按钮btnD；
专用无线按钮btnE；
私人放射组；
私人按钮btnWhat；
}
void showtoos（字符串文本）{
如果（t！=null）
t、 取消（）；
t=Toast.makeText（活动、文本、Toast.LENGTH\u SHORT）；
t、 show（）；
}
}

与复选框相同的故事。。。多次询问（将状态存储在适配器中）。。。你还写了我甚至尝试过，但没有提供你的任何努力（作为代码）我正在添加我的代码@Selvin@Selvin请看一看我添加的代码。没有什么比这更好的了，但是在所有的代码中，我只看到一个问题。。。似乎您为rdGroup使用了错误的侦听器。。。试试这个：哎呀！旧代码。我也试过一次，运气不好@塞尔文

/**
 * 
 */

package com.example.adapters;

import java.util.ArrayList;

import android.app.Activity;
import android.util.SparseIntArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TextView;
import android.widget.Toast;
import com.example.android.R;
import com.example.models.AnswerStateModel;
import com.example.utils.Config;

public class AnswerKeyAdapter extends ArrayAdapter<AnswerStateModel> {

    private Activity activity;
    private ArrayList<AnswerStateModel> mAnswerList;
    Toast t = null;
    private SparseIntArray mSpCheckedState=new SparseIntArray();

    public AnswerKeyAdapter(Activity activity, ArrayList<AnswerStateModel> mAnswerList) {
        super(activity, R.layout.row_item_answer_key, mAnswerList);
        this.activity = activity;
        this.mAnswerList = mAnswerList;
    }

    @Override
    public int getCount() {
        return mAnswerList.size();
    }

    @Override
    public AnswerStateModel getItem(int position) {
        return mAnswerList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }


    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        ViewHolder holder=null;
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = LayoutInflater.from(activity).inflate(
                    R.layout.row_item_answer_key, parent, false);
            holder.lblAnswerId = (TextView) convertView.findViewById(R.id.lblAnswerId);
            holder.rdGroup = (RadioGroup) convertView.findViewById(R.id.rdGroup);
            holder.btnA = (RadioButton) convertView.findViewById(R.id.btnA);
            holder.btnB = (RadioButton) convertView.findViewById(R.id.btnB);
            holder.btnC = (RadioButton) convertView.findViewById(R.id.btnC);
            holder.btnD = (RadioButton) convertView.findViewById(R.id.btnD);
            holder.btnE = (RadioButton) convertView.findViewById(R.id.btnE);
            holder.btnWhat = (Button) convertView.findViewById(R.id.btnWhat);
            convertView.setTag(holder);

        } else {
            holder=(ViewHolder)convertView.getTag();
        }

        holder.rdGroup.setOnCheckedChangeListener(null);
        holder.rdGroup.clearCheck();

        Config.error("Spars "+mSpCheckedState.get(position));
        if(mSpCheckedState.indexOfKey(position)>-1){
            holder.rdGroup.check(mSpCheckedState.get(position));
        }else{
            holder.rdGroup.clearCheck();
        }

        holder.rdGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                if(checkedId>-1){
                    mSpCheckedState.put(position, checkedId);
                }else{
                    if(mSpCheckedState.indexOfKey(position)>-1)
                        mSpCheckedState.removeAt(mSpCheckedState.indexOfKey(position));
                }               
            }
        });



        Config.error("Current Position " + position);
        holder.lblAnswerId.setText(position + 1 + "");

        holder.btnWhat.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                if (v.isSelected())
                    v.setSelected(false);
                else
                    v.setSelected(true);
            }
        });

        return convertView;
    }

    private static class ViewHolder {
        private TextView lblAnswerId;
        private RadioButton btnA;
        private RadioButton btnB;
        private RadioButton btnC;
        private RadioButton btnD;
        private RadioButton btnE;
        private RadioGroup rdGroup;
        private Button btnWhat;
    }

    void showToast(String text) {

        if (t != null)
            t.cancel();

        t = Toast.makeText(activity, text, Toast.LENGTH_SHORT);
        t.show();
    }
}