Android RatingBar Example

MainActivity.java

package kantapp.androidratingbar;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RatingBar;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity 
{

    RatingBar ratingBar;
    Button submit;
    TextView thanks;
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        ratingBar=(RatingBar)findViewById(R.id.ratingBar);
        ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
            @Override
            public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser)
            {
                Toast.makeText(MainActivity.this, String.valueOf(ratingBar.getRating()), Toast.LENGTH_SHORT).show();
            }
        });

        thanks=(TextView)findViewById(R.id.thanks);
        submit=(Button)findViewById(R.id.sumbit);
        submit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                thanks.setText("Thank you for Giving "+String.valueOf(ratingBar.getRating())+" Point .");
            }
        });
    }
}

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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="kantapp.androidratingbar.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Please Give Me Rating ."
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <RatingBar
        android:id="@+id/ratingBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="5"
        android:rating="4.5"

        />

    <Button
        android:id="@+id/sumbit"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Submit" />

    <TextView
        android:id="@+id/thanks"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Thank you for Giving this Point"
        android:textAppearance="?android:attr/textAppearanceLarge" />
</LinearLayout>

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