FileDocCategorySizeDatePackage
RatingBar1.javaAPI DocAndroid 1.5 API2862Wed May 06 22:41:08 BST 2009com.example.android.apis.view

RatingBar1

public class RatingBar1 extends android.app.Activity implements RatingBar.OnRatingBarChangeListener
Demonstrates how to use a rating bar

Fields Summary
android.widget.RatingBar
mSmallRatingBar
android.widget.RatingBar
mIndicatorRatingBar
android.widget.TextView
mRatingText
Constructors Summary
Methods Summary
protected voidonCreate(android.os.Bundle savedInstanceState)

        super.onCreate(savedInstanceState);

        setContentView(R.layout.ratingbar_1);
        
        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);
public voidonRatingChanged(android.widget.RatingBar ratingBar, float rating, boolean fromTouch)

        final int numStars = ratingBar.getNumStars();
        mRatingText.setText( 
                getString(R.string.ratingbar_rating) + " " + 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);
        }