Android:RatingBar

1.Main.java
package wei.ratingbar;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.RatingBar;
import android.widget.Toast;
import android.widget.RatingBar.OnRatingBarChangeListener;

public class MainActivity extends Activity {

RatingBar ratingbar;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findviews();
}


void findviews(){

ratingbar=(RatingBar)findViewById(R.id.rtb);
ratingbar.setOnRatingBarChangeListener(rtblistener);

}

OnRatingBarChangeListener rtblistener=new OnRatingBarChangeListener() {

@Override
public void onRatingChanged(RatingBar ratingBar, float rating,
boolean fromUser) {
// TODO Auto-generated method stub
String message=getString(R.string.Text)+rating;
Toast.makeText(MainActivity.this, message,Toast.LENGTH_SHORT).show();
}
};


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

}

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2.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="match_parent"

    android:layout_height="match_parent" >

    

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

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:numStars="5"

        android:stepSize="1.0" />

</LinearLayout>