Rating Bar Full Example

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

    

    <RatingBar android:id="@+id/rating_1"

    android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:numStars="3"

        android:rating="2.5">

    </RatingBar>

    

    <RatingBar android:id="@+id/rating_2"

    android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:numStars="5"

        android:rating="2.25">

    </RatingBar>

    

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="10dip">

    

<TextView  

android:id="@+id/rating"

    android:layout_width="fill_parent" 

    android:layout_height="wrap_content" 

    android:text="@string/hello"

    />

   

    <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>

MainActivity.java

public class MainActivity extends Activity implements RatingBar.OnRatingBarChangeListener

{

RatingBar mSmallRatingBar;

RatingBar mIndicatingRatingBar;

TextView mRatingText;

    /** Called when the activity is first created. */

   

    public void onCreate(Bundle savedInstanceState) 

    {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        

        mRatingText=(TextView)findViewById(R.id.rating);

        

        mSmallRatingBar=(RatingBar)findViewById(R.id.small_ratingbar);

        mIndicatingRatingBar=(RatingBar)findViewById(R.id.indicator_ratingbar);

        

        ((RatingBar)findViewById(R.id.rating_1)).setOnRatingBarChangeListener(this);

        ((RatingBar)findViewById(R.id.rating_2)).setOnRatingBarChangeListener(this);

    }

    

   

    public void onRatingChanged(RatingBar ratingBar,float rating,boolean fromTouch)

    {

    final int numStars=ratingBar.getNumStars();

   

    mRatingText.setText(getString(R.string.ratingbar_rating)+" "+rating+" / "+numStars);

   

    if(mIndicatingRatingBar.getNumStars()!=numStars)

    {

    mIndicatingRatingBar.setNumStars(numStars);

    mSmallRatingBar.setNumStars(numStars);

    }

   

    if(mIndicatingRatingBar.getRating()!=rating)

    {

    mIndicatingRatingBar.setRating(rating);

    mSmallRatingBar.setRating(rating);

    }

   

    final float ratingBarStepSize=ratingBar.getStepSize();

   

    if(mIndicatingRatingBar.getStepSize()!=ratingBarStepSize)

    {

    mIndicatingRatingBar.setStepSize(ratingBarStepSize);

    mSmallRatingBar.setStepSize(ratingBarStepSize);

    }

    }

}