How to create a Rewarded Video Ad in android app | Place Rewarded Video Ads

In our Previous Posts, We have created Banner Ad and Interstitial Ad.

In this post, we will create Rewarded Video Ad to show video Ads on button click and also we add reward coins.

For that, first, we create a Rewarded ad in our Admob Account on Admob.com

Rewarded Video Ad

Then, in XML we create a Text view and a Button.
The button is used to show a video ad and the Text view is used to change the value when your ad finished.

MainActivity.xml

 <?xml version="1.0" encoding="utf-8"?>  
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
   xmlns:app="http://schemas.android.com/apk/res-auto"  
   xmlns:tools="http://schemas.android.com/tools"  
   android:layout_width="match_parent"  
   android:layout_height="match_parent"  
   android:orientation="vertical"  
   tools:context=".MainActivity">  
   <TextView  
     android:id="@+id/helloworld"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:text="Hello World!"  
     app:layout_constraintBottom_toBottomOf="parent"  
     app:layout_constraintLeft_toLeftOf="parent"  
     app:layout_constraintRight_toRightOf="parent"  
     app:layout_constraintTop_toTopOf="parent" />  
   <Button  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:text="Show Video Ad"  
     android:id="@+id/VideoAd">  
   </Button>  
 </LinearLayout>  

Then, we implement the Rewarded video Ad Listener and implement its methods. 
Also, we set up our rewarded ad.

MainActivity.java

 package studio.harpreet.myadmobads;  
 import androidx.appcompat.app.AppCompatActivity;  
 import android.os.Bundle;  
 import android.view.View;  
 import android.widget.Button;  
 import android.widget.TextView;  
 import android.widget.Toast;  
 import com.google.android.gms.ads.AdListener;  
 import com.google.android.gms.ads.AdRequest;  
 import com.google.android.gms.ads.AdView;  
 import com.google.android.gms.ads.InterstitialAd;  
 import com.google.android.gms.ads.MobileAds;  
 import com.google.android.gms.ads.reward.RewardItem;  
 import com.google.android.gms.ads.reward.RewardedVideoAd;  
 import com.google.android.gms.ads.reward.RewardedVideoAdListener;  
 public class MainActivity extends AppCompatActivity implements RewardedVideoAdListener {  
   Button vbtn;  
   RewardedVideoAd mAd;  
   TextView tv;  
   @Override  
   protected void onCreate(Bundle savedInstanceState) {  
     super.onCreate(savedInstanceState);  
     setContentView(R.layout.activity_main);  
     vbtn = findViewById(R.id.VideoAd);  
     tv = findViewById(R.id.helloworld);  
     mAd = MobileAds.getRewardedVideoAdInstance(this);  
     mAd.setRewardedVideoAdListener(this);  
     vbtn.setOnClickListener(new View.OnClickListener() {  
       @Override  
       public void onClick(View v) {  
         AdRequest adRequest2 = new AdRequest.Builder().addTestDevice("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX").build();  
         mAd.loadAd("ca-app-pub-1858792262020609/9984696229",adRequest2);  
       }  
     });  
   }  
   @Override  
   public void onRewardedVideoAdLoaded() {  
       if (mAd.isLoaded()) {  
         mAd.show();  
     }   
   }  
   @Override  
   public void onRewardedVideoAdOpened() {  
   }  
   @Override  
   public void onRewardedVideoStarted() {  
   }  
   @Override  
   public void onRewardedVideoAdClosed() {  
   }  
   @Override  
   public void onRewarded(RewardItem rewardItem) {  
 Toast.makeText(this, rewardItem.getType() + ": " + rewardItem.getAmount(), Toast.LENGTH_SHORT).show();  
   }  
   @Override  
   public void onRewardedVideoAdLeftApplication() {  
   }  
   @Override  
   public void onRewardedVideoAdFailedToLoad(int i) {  
   }  
   @Override  
   public void onRewardedVideoCompleted() {  
     tv.setText("5");  
   }  
 }  

Here, we load our rewarded ad by filling ad unit id. Also, we change value of Text View when our Video Ad is finished.
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