Android中ListView与RadioButton结合----自定义单选列表 既在原基础上修改

原文：http://blog.csdn.net/qq544529563/article/details/38758839

有时候我们需要制作自定义的单选列表，但是会遇到一些问题，比如多选，假选问题，所以网上找了找资料，整理一个demo出来，贴一下代码:

    <ListView             android:id="@+id/listView1"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:layout_centerHorizontal="true"             android:layout_centerVertical="true" >         </ListView>  

列表中每行的内容

    <?xml version="1.0" encoding="utf-8"?>      <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"          android:layout_width="match_parent"          android:layout_height="match_parent"          android:orientation="vertical" >                <RelativeLayout              android:id="@+id/outpatient_check_hospital"              android:layout_width="fill_parent"              android:layout_height="wrap_content"              android:layout_marginBottom="5.0dip"              android:layout_marginLeft="12.599976dip"              android:layout_marginRight="12.599976dip"              android:layout_marginTop="5.0dip"              android:gravity="center_vertical"               android:background="#AAAAAA">                    <LinearLayout                  android:id="@+id/linear_layout_up"                  android:layout_width="fill_parent"                  android:layout_height="wrap_content"                  android:layout_margin="10.0dip"                  android:gravity="center"                  android:orientation="horizontal" >                        <ImageView                      android:layout_width="10dip"                      android:layout_height="10dip"                      android:adjustViewBounds="false" />                        <TextView                      android:id="@+id/tv_device_name"                      android:layout_width="wrap_content"                      android:layout_height="wrap_content"                      android:layout_weight="2.0"                      android:text="名称"                      android:textColor="#ff323232"                      android:textSize="16.0sp"                      android:typeface="monospace" />                        <RadioButton                      android:id="@+id/rb_light"                      android:layout_width="wrap_content"                      android:layout_height="wrap_content"                      android:focusable="false"                      android:text="" />                                </LinearLayout>          </RelativeLayout>            </LinearLayout>  

使用列表的页面

    public class MainActivity extends Activity {          private ListView listView;          private ListViewAdapter adapter;          private String[] beans = new String[] { "1", "2", "3", "4", "5", "6", "7",                  "8", "9", "10", "11", "12", "13" };                @Override          protected void onCreate(Bundle savedInstanceState) {              super.onCreate(savedInstanceState);              setContentView(R.layout.activity_main);                    initView();                }                private void initView() {              // TODO Auto-generated method stub              Log.i("htp", "beans.size:" + beans.length);              listView = (ListView) findViewById(R.id.listView1);              adapter = new ListViewAdapter(MainActivity.this, beans);              listView.setAdapter(adapter);              listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);          }  

适配器内容,在这里面处理如何单选问题

    package com.example.listviewdemo;            import java.util.HashMap;      import java.util.List;            import android.content.Context;      import android.view.LayoutInflater;      import android.view.View;      import android.view.ViewGroup;      import android.widget.BaseAdapter;      import android.widget.ImageView;      import android.widget.LinearLayout;      import android.widget.RadioButton;      import android.widget.TextView;            public class ListViewAdapter extends BaseAdapter {                private Context context;          private String[] beans;          // 用于记录每个RadioButton的状态，并保证只可选一个          HashMap<String, Boolean> states = new HashMap<String, Boolean>();                class ViewHolder {                    TextView tvName;              RadioButton rb_state;          }                public ListViewAdapter(Context context, String[] beans) {              // TODO Auto-generated constructor stub              this.beans = beans;              this.context = context;          }                @Override          public int getCount() {              // TODO Auto-generated method stub              return beans.length;          }                @Override          public Object getItem(int position) {              // TODO Auto-generated method stub              return beans[position];          }                @Override          public long getItemId(int position) {              // TODO Auto-generated method stub              return position;          }                @Override          public View getView(final int position, View convertView, ViewGroup parent) {              // TODO Auto-generated method stub              // 页面              ViewHolder holder;              String bean = beans[position];              LayoutInflater inflater = LayoutInflater.from(context);              if (convertView == null) {                  convertView = inflater.inflate(                          R.layout.assist_device_binding_list_item, null);                  holder = new ViewHolder();      //          holder.rb_state = (RadioButton) convertView      //                  .findViewById(R.id.rb_light);                  holder.tvName = (TextView) convertView                          .findViewById(R.id.tv_device_name);                  convertView.setTag(holder);              } else {                  holder = (ViewHolder) convertView.getTag();              }                            holder.tvName.setText(bean);              final RadioButton radio=(RadioButton) convertView.findViewById(R.id.rb_light);                holder.rb_state = radio;                holder.rb_state.setOnClickListener(new View.OnClickListener() {                        public void onClick(View v) {                            // 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), radio.isChecked());                      ListViewAdapter.this.notifyDataSetChanged();                  }              });  <pre name="code" class="html">       /**             * 此处为在RecyclerView设置单选的应用             */           /* view.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    if (mOnItemClickListener != null){                        //注意这里使用getTag方法获取数据                        mOnItemClickListener.onItemClick(v, (UpChangeInfo) v.getTag());                        // 重置，确保最多只有一项被选中                        for (String key : states.keySet()) {                            states.put(key, false);                        }                        //此处重点                        mRadioBtnSelect.setChecked(true);//此处为修改的地方                        boolean checked = mRadioBtnSelect.isChecked();                        //Log.d(TAG,"onClick()  item checked is ("+checked+")");                        states.put(String.valueOf(i),checked);                       // Log.d(TAG,"onClick()  item i is ("+i+")");                        notifyDataSetChanged();                    }                }            });            */            boolean res = false;            if (states.get(String.valueOf(position)) == null                    || states.get(String.valueOf(position)) == false) {                res = false;                states.put(String.valueOf(position), false);            } else                res = true;            holder.rb_state.setChecked(res);            return convertView;        }    }