package cn.com.sxp;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.RatingBar;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.widget.TextView;

public class RatingBarActivity extends Activity implements OnRatingBarChangeListener{
    private RatingBar smallRatingBar = null;
     private RatingBar indicatorRatingBar = null;
     private TextView ratingText = null;
     
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        ratingText = (TextView) findViewById(R.id.textView);
        indicatorRatingBar = (RatingBar) findViewById(R.id.rbFour);
        smallRatingBar = (RatingBar) findViewById(R.id.rbThree);
        
        // The different rating bars in the layout. Assign the listener to us.
        ((RatingBar)findViewById(R.id.rbOne)).setOnRatingBarChangeListener(this);
        ((RatingBar)findViewById(R.id.rbTwo)).setOnRatingBarChangeListener(this);
    }
    
    @Override
    public void onRatingChanged(RatingBar ratingBar, float rating,
      boolean fromUser) {
        // getNumStars
        // Returns the number of stars shown.
      final int numStars = ratingBar.getNumStars();
      ratingText.setText(" 欢迎程度 " + rating + "/" + numStars);
            if (indicatorRatingBar.getNumStars() != numStars) {
                indicatorRatingBar.setNumStars(numStars);
                smallRatingBar.setNumStars(numStars);
            }
            // getRating
            // Gets the current rating 评级(number of stars filled).
            if (indicatorRatingBar.getRating() != rating) {
                Log.d("sxp","rating " + rating);
                indicatorRatingBar.setRating(rating);
                smallRatingBar.setRating(rating);
            }
            // getStepSize
            // Gets the step size of this rating bar.
            final float ratingBarStepSize = ratingBar.getStepSize();
            if (indicatorRatingBar.getStepSize() != ratingBarStepSize) {
                Log.d("sxp","ratingBarStepSize " + ratingBarStepSize);
                indicatorRatingBar.setStepSize(ratingBarStepSize);
                smallRatingBar.setStepSize(ratingBarStepSize);
            }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:paddingLeft="10dip"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
    <RatingBar android:id="@+id/rbOne"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="3"
        android:rating="2.5" />
    <RatingBar android:id="@+id/rbTwo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="5"
        android:rating="2.25" />
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dip">
        
        <TextView android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
            
        <RatingBar android:id="@+id/rbThree"
            style="?android:attr/ratingBarStyleSmall"
            android:layout_marginLeft="5dip"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical" />
            
    </LinearLayout>
    <RatingBar android:id="@+id/rbFour"
        style="?android:attr/ratingBarStyleIndicator"
        android:layout_marginLeft="5dip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical" />
            
</LinearLayout>