Android | RatingBar Example

Below is an example of Android RatingBar element.

Note: Example is verified with Android 4.0.3 emulator.

activity_rating_bar_example.xml


<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" >

   
    <RatingBar
        android:id="@+id/rbrating"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="5"
        android:rating="0"
        android:stepSize=".1"
       />
   
    <TextView
        android:id="@+id/tvratingvalue"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/tvratingvalue"
/>
    <TextView
        android:id="@+id/tvuser"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/tvuser"
/>  

    <Button
        android:id="@+id/btnok"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/btnok"
/>
</LinearLayout>

strings.xml

<resources>

    <string name="app_name">RatingBarExample</string>

    <string name="menu_settings">Settings</string>

    <string name="title_activity_rating_bar_example">RatingBar Example</string>

    

    <string name="tvratingvalue"></string>

    <string name="tvuser"></string>

    <string name="btnok">Set rating at 2.5</string>

</resources>

RatingBarExample.java

package com.example.ratingbarexample;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.RatingBar;

import android.widget.RatingBar.OnRatingBarChangeListener;

import android.widget.TextView;

public class RatingBarExample extends Activity implements OnRatingBarChangeListener, OnClickListener {

private RatingBar rbRatingBar  ;

private TextView tvRatingValue, tvUser;

private Button btnOk;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_rating_bar_example);

        

        rbRatingBar = (RatingBar) findViewById(R.id.rbrating);

        tvRatingValue = (TextView) findViewById(R.id.tvratingvalue);

        tvUser = (TextView) findViewById(R.id.tvuser);

        btnOk  = (Button) findViewById(R.id.btnok);

        

        rbRatingBar.setOnRatingBarChangeListener(this);

        btnOk.setOnClickListener(this);

        

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.activity_rating_bar_example, menu);

        return true;

    }

public void onRatingChanged(RatingBar arg0, float arg1, boolean arg2) {

// TODO Auto-generated method stub

tvRatingValue.setText("Rating : " + String.valueOf(arg1));

if (arg2 == true)

tvUser.setText("Changed by User"); //shows when user do by himself/herself

else

tvUser.setText("Changed by function"); // when set by function like clicking on Button

}

public void onClick(View arg0) {

// TODO Auto-generated method stub

rbRatingBar.setProgress(25);

}

}

Result: