android-------listview 实现radiobutton 单选

 

 

import android.app.Activity;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.CompoundButton;

import android.widget.CompoundButton.OnCheckedChangeListener;

import android.widget.ImageView;

import android.widget.RadioButton;

import android.widget.TextView;

 

public class RecoverListAdapter extends BaseAdapter {

 

    private LayoutInflater inflater;

 

    int[] backup_record_item_image;

 

    String[] backup_record_item_time;

 

    String[] backup_record_item_to;

 

    Activity activity;

 

    private int temp = -1;

 

    public RecoverListAdapter(Activity context, int[] backup_record_item_image,

            String[] backup_record_item_time, String[] backup_record_item_to) {

        this.inflater = LayoutInflater.from(context);

        this.backup_record_item_image = backup_record_item_image;

        this.backup_record_item_time = backup_record_item_time;

        this.backup_record_item_to = backup_record_item_to;

        this.activity = context;

    }

 

    @Override

    public int getCount() {

        return backup_record_item_time.length;

    }

 

    @Override

    public Object getItem(int position) {

        return position;

    }

 

    @Override

    public long getItemId(int position) {

        return position;

    }

 

    @Override

    public View getView(int position, View convertView, ViewGroup parent) {

        ViewHolder holder;

        if (convertView == null) {

            holder = new ViewHolder();

            convertView = this.inflater.inflate(R.layout.general_recover_list_item, null);

            holder.iv = (ImageView) convertView.findViewById(R.id.backup_record_item_image);

            holder.tv_time = (TextView) convertView.findViewById(R.id.backup_record_item_time);

            holder.tv_to = (TextView) convertView.findViewById(R.id.backup_record_item_to);

            holder.radioButton = (RadioButton) convertView

                    .findViewById(R.id.backup_record_item_btn);

            holder.radioButton.setChecked(false);

            convertView.setTag(holder);

        } else {

            holder = (ViewHolder) convertView.getTag();

        }

 

        holder.iv.setImageResource(backup_record_item_image[position]);

        holder.tv_time.setText(backup_record_item_time[position]);

        holder.tv_to.setText(backup_record_item_to[position]);

 

      //黑体部分为实现单选功能部分

 

        holder.radioButton.setId(position);

        holder.radioButton.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override

            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

                if (isChecked) {

                    if (temp != -1) {

                        RadioButton tempButton = (RadioButton) activity.findViewById(temp);

                        if (tempButton != null) {

                            tempButton.setChecked(false);

                        }

                    }

                    temp = buttonView.getId();

                }

            }

        });

 

        if (position == temp) {

            holder.radioButton.setChecked(true);

        } else {

            holder.radioButton.setChecked(false);

        }

        return convertView;

    }

 

    private class ViewHolder {

        ImageView iv;

 

        TextView tv_time;

 

        TextView tv_to;

 

        RadioButton radioButton;

 

    }

}

general_recover_list_item.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout 

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="wrap_content" 

android:layout_height="fill_parent">

<RelativeLayout 

android:layout_width="wrap_content" 

android:layout_height="wrap_content"

android:paddingLeft="5dip"

android:paddingRight="5dip"

android:id="@+id/backup_record_item">

<ImageView 

android:layout_height="wrap_content" 

android:layout_width="wrap_content" 

android:src="@drawable/icon"

android:layout_alignParentLeft="true"

android:id="@+id/backup_record_item_image"/>

<LinearLayout 

android:layout_height="wrap_content" 

android:layout_width="wrap_content" 

android:orientation="vertical"

android:layout_toRightOf="@+id/backup_record_item_image"

android:id="@+id/backup_record_item_txt">

<TextView 

android:layout_height="wrap_content"

android:layout_width="wrap_content" 

android:text="时间"

android:layout_alignTop="@+id/imageView1"

android:layout_alignBottom="@+id/imageView1"

android:id="@+id/backup_record_item_time"/>

<TextView 

android:layout_height="wrap_content"

android:layout_width="wrap_content" 

android:text="备份联系人    到  " 

android:layout_toRightOf="@+id/imageView1"

android:layout_alignTop="@+id/imageView1"/>

<TextView 

android:layout_height="wrap_content"

android:layout_width="wrap_content" 

android:text="手机/存储卡" 

android:layout_toRightOf="@+id/imageView1"

android:layout_alignTop="@+id/imageView1"

android:id="@+id/backup_record_item_to" />

</LinearLayout>

<RadioButton 

android:layout_height="wrap_content"

android:layout_width="wrap_content"

android:layout_alignParentRight="true"

android:id="@+id/backup_record_item_btn" />

<CheckBox 

android:layout_width="wrap_content" 

android:layout_height="wrap_content"

android:visibility="gone"

android:text="" 

android:id="@+id/backup_record_item_check" />

</RelativeLayout>

</LinearLayout>

main.xml

<LinearLayout 

android:layout_width="fill_parent"

android:layout_height="fill_parent" 

android:orientation="vertical"

android:id="@+id/recover_items">

<ListView 

android:id="@+id/recover_list" 

android:cacheColorHint="#00000000"

android:layout_height="match_parent" 

android:layout_width="fill_parent"/>

<View 

android:id="@+id/recover_footer" 

android:layout_width="fill_parent"

android:layout_height="40dip" />

</LinearLayout>