How to use AdMob Rewarded Video Ad on Android

Here I share my experience to bring AdMob Rewarded Video Ad into my apps. This kind of app works well because users will watch the ads completely to get rewarded, for example to get virtual coins, gems, etc.

You must have your own ad ID from AdMob and replace this line below (in MainActivity) with your own:

ca-app-pub-3940256099942544/5224354917

I’m using Android Studio. First, you must add this line into gradle dependencies:

compile 'com.google.android.gms:play-services-ads:8.4.0'

Then, make sure you put these permission codes into your manifest file:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

Now here is Java codes for MainActivity.java :

package com.zofiakreasi.rewardadtest;

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

import com.google.android.gms.ads.AdRequest;
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 {
    private RewardedVideoAd mAd;
    Button button;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mAd = MobileAds.getRewardedVideoAdInstance(this);
        mAd.setRewardedVideoAdListener(this);

        loadRewardedVideoAd();

        button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                if (mAd.isLoaded()) {
                    mAd.show();
                }
            }
        });
    }

    private void loadRewardedVideoAd(){
        mAd.loadAd("ca-app-pub-3940256099942544/5224354917", new AdRequest.Builder().build());
    }

    @Override
    public void onRewarded(RewardItem reward){
        Toast.makeText(this, "onRewarded! currency: " + reward.getType() + " ammount: " + reward.getAmount(), Toast.LENGTH_SHORT).show();
    }

    // The following listener methods are optional.
    @Override
    public void onRewardedVideoAdLeftApplication() {
        Toast.makeText(this, "onRewardedVideoAdLeftApplication", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onRewardedVideoAdClosed() {
        Toast.makeText(this, "onRewardedVideoAdClosed", Toast.LENGTH_SHORT).show();
        loadRewardedVideoAd();
    }

    @Override
    public void onRewardedVideoAdFailedToLoad(int errorCode) {
        Toast.makeText(this, "onRewardedVideoAdFailedToLoad", Toast.LENGTH_SHORT).show();
        loadRewardedVideoAd();
    }

    @Override
    public void onRewardedVideoAdLoaded() {
        Toast.makeText(this, "onRewardedVideoAdLoaded", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onRewardedVideoAdOpened() {
        Toast.makeText(this, "onRewardedVideoAdOpened", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onRewardedVideoStarted() {
        Toast.makeText(this, "onRewardedVideoStarted", Toast.LENGTH_SHORT).show();
    }
}

Give it a try and good luck!