Android设置RadioButton在文字的右边

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<TextView
android:id="@+id/radiobutton_textview"
android:layout_width="fill_parent"
android:layout_height="50dip"
android:background="@android:drawable/title_bar"
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="18dip"
android:textStyle="bold" />

<RadioGroup
android:id="@+id/group"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >

<RadioButton
android:id="@+id/button1"
android:layout_width="fill_parent"
android:layout_height="50dip"
android:button="@null"
android:drawableRight="@android:drawable/btn_radio"
android:paddingLeft="30dip"
android:text="Android新手"
android:textSize="20dip" />

<View
android:layout_width="fill_parent"
android:layout_height="1px"
android:background="?android:attr/listDivider" />

<RadioButton
android:id="@+id/button2"
android:layout_width="fill_parent"
android:layout_height="50dip"
android:button="@null"
android:drawableRight="@android:drawable/btn_radio"
android:paddingLeft="30dip"
android:text="Android高手"
android:textSize="20dip" />
</RadioGroup>

</LinearLayout>

package sdfasdf.sadf;

import android.app.Activity;
import android.os.Bundle;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TextView;

public class SdfsadfasdfasdffActivity extends Activity {
private TextView textView;
private RadioGroup group;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textView = (TextView) findViewById(R.id.radiobutton_textview);
group = (RadioGroup) findViewById(R.id.group);

// 单选按钮组监听事件
group.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// 根据ID判断选择的按钮
if (checkedId == R.id.button1) {
textView.setText("Android新手");
} else {
textView.setText("Android高手");
}
}
});
}
}