package com.example.uiconrrol;import android.app.ListActivity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.ArrayAdapter;import android.widget.ListView;public class MainActivity extends ListActivity{    private ArrayAdapter<ListCellData> adapter;        @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);                adapter = new ArrayAdapter<ListCellData>(this, android.R.layout.simple_list_item_1);        setListAdapter(adapter);                adapter.add(new ListCellData(this, "RadioGroup", new Intent(this, AtyUsingRadioGroup.class)));    }        @Override    protected void onListItemClick(ListView l, View v, int position, long id) {                ListCellData data = adapter.getItem(position);        data.startActivity();                super.onListItemClick(l, v, position, id);    }}

package com.example.uiconrrol;import android.content.Context;import android.content.Intent;public class ListCellData {        public ListCellData(Context context, String controlName, Intent relatedIntent){        this.controlName = controlName;        this.context = context;        this.relatedIntent = relatedIntent;    }        private String controlName = "";        public String getControlName() {        return controlName;    }        private Context context = null;        public Context getContext() {        return context;    }        private Intent relatedIntent = null;        public Intent getRelatedIntent() {        return relatedIntent;    }        public void startActivity(){        getContext().startActivity(getRelatedIntent());    }        //重写toString方法，只显示Name    @Override    public String toString() {        return getControlName();    }}

package com.example.uiconrrol;import android.app.Activity;import android.app.AlertDialog;import android.os.Bundle;import android.view.View;import android.widget.RadioButton;public class AtyUsingRadioGroup extends Activity {        private RadioButton radioRight;        @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.aty_using_radiogroup);                radioRight = (RadioButton) findViewById(R.id.radioRight);                findViewById(R.id.btnSubmit).setOnClickListener(new View.OnClickListener() {                        @Override            public void onClick(View v) {                if(radioRight.isChecked()){                    new AlertDialog.Builder(AtyUsingRadioGroup.this).setTitle("判断").setMessage("回答正确").setPositiveButton("Cancel", null).show();                }else{                    new AlertDialog.Builder(AtyUsingRadioGroup.this).setTitle("判断").setMessage("回答错误").setPositiveButton("Cancel", null).show();                }            }        });    }}

<?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" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="老师是个帅哥吗？" />    <RadioGroup        android:id="@+id/radioGroup1"        android:layout_width="wrap_content"        android:layout_height="wrap_content" >        <RadioButton            android:id="@+id/radioRight"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="是" />        <RadioButton            android:id="@+id/radioNo"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="不是" />        <RadioButton            android:id="@+id/radio2"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="不知道" />    </RadioGroup>    <Button        android:id="@+id/btnSubmit"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="提交" /></LinearLayout>