How to create custom ratings bar in android?

AndroidMobile DevelopmentApps/Applications

This example demonstrates how do I create custom ratings bar in android.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
   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:padding="16sp"
   tools:context=".MainActivity">
   <RatingBar
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:numStars="5"
      android:rating="2.0"
      android:stepSize="1.0"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true"
      android:id="@+id/ratingBar"/>
   <Button
      android:text="CHECK"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_below="@id/ratingBar"
      android:layout_centerHorizontal="true"
      android:id="@+id/buttonCheck"/>
</RelativeLayout>

Step 3 − Add the following code to src/MainActivity.java

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.Toast;
public class MainActivity extends AppCompatActivity {
   RatingBar ratingBar;
   Button button;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      ratingBar = findViewById(R.id.ratingBar);
      ratingBar.setNumStars(5);
      button = findViewById(R.id.buttonCheck);
      ratingBar.setOnRatingBarChangeListener(new
      RatingBar.OnRatingBarChangeListener() {
         @Override
         public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
            Toast.makeText(MainActivity.this, "Stars: " +
               (int)rating, Toast.LENGTH_SHORT).show();
         }
      });
      button.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View v) {
            Toast.makeText(MainActivity.this, "Stars: " +
               (int)ratingBar.getRating(),
               Toast.LENGTH_SHORT).show();
         }
      });
   }
}

Step 4 - Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest
   xmlns:android="http://schemas.android.com/apk/res/android"
   package="app.com.sample">
   <application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      android:roundIcon="@mipmap/ic_launcher_round"
      android:supportsRtl="true"
      android:theme="@style/AppTheme">
      <activity android:name=".MainActivity">
         <intent-filter>
            <action
               android:name="android.intent.action.MAIN" />
            <category
               android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
      </activity>
   </application>
</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run Play Icon icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −

raja
Published on 21-Aug-2019 10:41:35
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