RatingBar

activity_main.xml :-

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:orientation="vertical"
   tools:context="com.kiranrating.MainActivity">

<TextView
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="Hollywood movies"
   android:layout_marginTop="49dp"
   android:id="@+id/textView" />
<RatingBar
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:layout_marginTop="20dp"
   android:id="@+id/ratingBar1" />
<Button
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="Click Rating"
   android:id="@+id/button"
   android:layout_marginTop="20dp"
   android:layout_gravity="center_horizontal" />
</LinearLayout>

MainActivity.java :-

package com.kiranrating;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RatingBar;
import android.widget.Toast;

public class MainActivity extends Activity {
    RatingBar r1;
    Button btnsubmit;
@Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    addListenerOnButtonClick();
    }

   public void addListenerOnButtonClick(){
   r1=(RatingBar)findViewById(R.id.ratingBar1);
   btnsubmit=(Button)findViewById(R.id.button);
   btnsubmit.setOnClickListener(new OnClickListener(){
@Override
    public void onClick(View arg0) {
    String rating=String.valueOf(r1.getRating());
   Toast.makeText(getApplicationContext(), rating, Toast.LENGTH_LONG).show();
    }
    });
   }
}

Output :-

RatingBar fig:1

RatingBar fig:2