学步园

源码地址

package com.example.startest;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.widget.RatingBar;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.widget.TextView;

public class MainActivity extends Activity implements OnRatingBarChangeListener{
	 private RatingBar mSmallRatingBar;
	 private RatingBar mIndicatorRatingBar;
	 private TextView mRatingText;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		 mRatingText = (TextView) findViewById(R.id.rating);

         // We copy the most recently changed rating on to these indicator-only
         // rating bars
         mIndicatorRatingBar = (RatingBar) findViewById(R.id.indicator_ratingbar);
         mSmallRatingBar = (RatingBar) findViewById(R.id.small_ratingbar);
         
         // The different rating bars in the layout. Assign the listener to us.
         ((RatingBar)findViewById(R.id.ratingbar1)).setOnRatingBarChangeListener(this);
         ((RatingBar)findViewById(R.id.ratingbar2)).setOnRatingBarChangeListener(this);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public void onRatingChanged(RatingBar ratingBar, float rating,
			boolean fromUser) {
		// TODO Auto-generated method stub
		 final int numStars = ratingBar.getNumStars();
         mRatingText.setText( 
                  " 受欢迎度" + rating + "/" + numStars);

         // Since this rating bar is updated to reflect any of the other rating
         // bars, we should update it to the current values.
         if (mIndicatorRatingBar.getNumStars() != numStars) {
             mIndicatorRatingBar.setNumStars(numStars);
             mSmallRatingBar.setNumStars(numStars);
         }
         if (mIndicatorRatingBar.getRating() != rating) {
             mIndicatorRatingBar.setRating(rating);
             mSmallRatingBar.setRating(rating);
         }
         final float ratingBarStepSize = ratingBar.getStepSize();
         if (mIndicatorRatingBar.getStepSize() != ratingBarStepSize) {
             mIndicatorRatingBar.setStepSize(ratingBarStepSize);
             mSmallRatingBar.setStepSize(ratingBarStepSize);
         }
	}

}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:paddingLeft="10dip"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <RatingBar android:id="@+id/ratingbar1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="3"
        android:rating="2.5" />

    <RatingBar android:id="@+id/ratingbar2"
        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/rating"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
            
        <RatingBar android:id="@+id/small_ratingbar"
            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/indicator_ratingbar"
        style="?android:attr/ratingBarStyleIndicator"
        android:layout_marginLeft="5dip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical" />
            
</LinearLayout>