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Devika Android
Devika Android

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Implementing All Ad Types in Android (Banner, Interstitial, Rewarded & Native)

In this blog, we will implement all major AdMob ad formats in an Android application:
Banner Ads
Interstitial Ads
Rewarded Ads
Native Ads

We will also understand how to properly control when and where ads should appear to avoid bad user experience and policy violations.

Create All Ad Units in AdMob

<string name="admob_app_id">ca-app-pub-3940256099942544~3347511713</string>
   <string name="banner_ad_unit_id">ca-app-pub-3940256099942544/6300978111</string>
   <string name="interstitial_ad_unit_id">ca-app-pub-3940256099942544/1033173712</string>
   <string name="reward_ad_unit_id">ca-app-pub-3940256099942544/5224354917</string>
   <string name="native_ad_unit_id">ca-app-pub-3940256099942544/2247696110</string>


    <meta-data
           android:name="com.google.android.gms.ads.APPLICATION_ID"
           android:value="@string/admob_app_id" />
   </application>
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Implement Banner Ad

 <com.google.android.gms.ads.AdView
           android:id="@+id/adView"
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           ads:adSize="BANNER"
           ads:adUnitId="@string/banner_ad_unit_id" />
MobileAds.initialize(this)
       val adRequest = AdRequest.Builder().build()
       binding.adView.loadAd(adRequest)

       binding.adView.adListener = object : AdListener() {

           override fun onAdLoaded() {
               Log.d("Ads", "Banner Loaded")
           }

           override fun onAdFailedToLoad(error: LoadAdError) {
               Log.d("Ads", "Failed: ${error.message}")
           }
       }
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Implement Interstitial, Rewarded & Native

object AdManager {

   private var interstitialAd: InterstitialAd? = null
   private var rewardedAd: RewardedAd? = null
   private var nativeAd: NativeAd? = null

   fun loadInterstitial(context: Context, adUnitId: String, onLoaded: () -> Unit) {

       val adRequest = AdRequest.Builder().build()

       InterstitialAd.load(
           context,
           adUnitId,
           adRequest,
           object : InterstitialAdLoadCallback() {

               override fun onAdLoaded(ad: InterstitialAd) {
                   interstitialAd = ad
                   onLoaded()
               }

               override fun onAdFailedToLoad(error: LoadAdError) {
                   interstitialAd = null
               }
           }
       )
   }

   fun showInterstitial(activity: Activity, onDismiss: () -> Unit) {

       interstitialAd?.let { ad ->

           ad.fullScreenContentCallback =
               object : FullScreenContentCallback() {

                   override fun onAdDismissedFullScreenContent() {
                       interstitialAd = null
                       onDismiss()
                   }
               }

           ad.show(activity)
       }
   }

   fun loadRewarded(
       context: Context,
       adUnitId: String,
       onLoaded: () -> Unit
   ) {

       val adRequest = AdRequest.Builder().build()

       RewardedAd.load(
           context,
           adUnitId,
           adRequest,
           object : RewardedAdLoadCallback() {

               override fun onAdLoaded(ad: RewardedAd) {
                   rewardedAd = ad
                   onLoaded()
               }

               override fun onAdFailedToLoad(error: LoadAdError) {
                   rewardedAd = null
               }
           }
       )
   }

   fun showRewarded(
       activity: Activity,
       onRewardEarned: (RewardItem) -> Unit,
       onDismiss: () -> Unit
   ) {

       rewardedAd?.let { ad ->

           ad.fullScreenContentCallback =
               object : FullScreenContentCallback() {

                   override fun onAdDismissedFullScreenContent() {
                       rewardedAd = null
                       onDismiss()
                   }

                   override fun onAdFailedToShowFullScreenContent(adError: AdError) {
                       rewardedAd = null
                       onDismiss()
                   }
               }

           ad.show(activity) { rewardItem ->
               onRewardEarned(rewardItem)
           }

       } ?: run {
           onDismiss()
       }
   }

   fun loadNativeAd(
       activity: Activity,
       adUnitId: String,
       container: ViewGroup
   ) {

       // Purana ad destroy karo
       nativeAd?.destroy()
       nativeAd = null

       val adLoader = AdLoader.Builder(activity, adUnitId)
           .forNativeAd { ad ->

               nativeAd = ad

               val binding = CustomeAdsDesignBinding.inflate(
                   LayoutInflater.from(activity),
                   container,
                   false
               )

               binding.nativeAdView.headlineView = binding.adHeadline
               binding.nativeAdView.bodyView = binding.adBody
               binding.nativeAdView.callToActionView = binding.adCallToAction
               binding.nativeAdView.iconView = binding.ivAds

               // Set Data
               binding.adHeadline.text = ad.headline
               binding.adBody.text = ad.body
               binding.adCallToAction.text = ad.callToAction

               ad.icon?.let {
                   binding.ivAds.setImageDrawable(it.drawable)
                   binding.ivAds.visibility = View.VISIBLE
               } ?: run {
                   binding.ivAds.visibility = View.GONE
               }

               // VERY IMPORTANT
               binding.nativeAdView.setNativeAd(ad)

               container.removeAllViews()
               container.addView(binding.root)
           }
           .withAdListener(object : AdListener() {
               override fun onAdFailedToLoad(error: LoadAdError) {
                   container.removeAllViews()
               }
           })
           .build()

       adLoader.loadAd(AdRequest.Builder().build())
   }

   fun destroyNative() {
       nativeAd?.destroy()
       nativeAd = null
   }

}
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Create CustomeAdsDesignBinding

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto">

   <data>

   </data>

   <androidx.cardview.widget.CardView
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:layout_margin="@dimen/_5sdp"
       app:cardCornerRadius="@dimen/_10sdp"
       app:cardElevation="@dimen/_5sdp">

       <com.google.android.gms.ads.nativead.NativeAdView
           android:id="@+id/native_ad_view"
           android:layout_width="match_parent"
           android:layout_height="match_parent">

           <LinearLayout
               android:layout_width="match_parent"
               android:layout_height="wrap_content"
               android:layout_gravity="center"
               android:gravity="center"
               android:orientation="vertical">

               <ImageView
                   android:id="@+id/iv_ads"
                   android:layout_width="wrap_content"
                   android:layout_height="wrap_content"
                   android:scaleType="fitXY" />

               <TextView
                   android:id="@+id/adHeadline"
                   android:layout_width="wrap_content"
                   android:layout_height="wrap_content"
                   android:textColor="@android:color/black"
                   android:textSize="16sp"
                   android:textStyle="bold" />

               <TextView
                   android:id="@+id/adBody"
                   android:layout_width="wrap_content"
                   android:layout_height="wrap_content"
                   android:textColor="@android:color/darker_gray"
                   android:textSize="14sp" />

               <Button
                   android:id="@+id/adCallToAction"
                   android:layout_width="wrap_content"
                   android:layout_height="wrap_content"
                   android:text="Install" />

           </LinearLayout>


       </com.google.android.gms.ads.nativead.NativeAdView>

   </androidx.cardview.widget.CardView>


</layout>
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Load All Ads in Activity

class AdsActivity : AppCompatActivity() {
   lateinit var binding: ActivityAdsBinding
   override fun onCreate(savedInstanceState: Bundle?) {
       super.onCreate(savedInstanceState)
       enableEdgeToEdge()
       binding = DataBindingUtil.setContentView(this, R.layout.activity_ads)
       ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
           val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
           v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
           insets
       }
       initView()
   }

   private fun initView() {
       MobileAds.initialize(this)
       val adRequest = AdRequest.Builder().build()
       binding.adView.loadAd(adRequest)

       binding.adView.adListener = object : AdListener() {

           override fun onAdLoaded() {
               Log.d("Ads", "Banner Loaded")
           }

           override fun onAdFailedToLoad(error: LoadAdError) {
               Log.d("Ads", "Failed: ${error.message}")
           }
       }


       //**{Interstitial Ads}**\\

       binding.btnInterstitialLoadAds.isEnabled = false
       binding.btnInterstitialLoadAds.alpha = 0.5f

       // Load first time
       AdManager.loadInterstitial(
           this,
           getString(R.string.interstitial_ad_unit_id)
       ) {
           binding.btnInterstitialLoadAds.isEnabled = true
           binding.btnInterstitialLoadAds.alpha = 1f
       }

       binding.btnInterstitialLoadAds.setOnClickListener {

           binding.btnInterstitialLoadAds.isEnabled = false
           binding.btnInterstitialLoadAds.alpha = 0.5f

           AdManager.showInterstitial(this) {

               // After dismiss → preload next ad
               AdManager.loadInterstitial(
                   this,
                   getString(R.string.interstitial_ad_unit_id)
               ) {
                   binding.btnInterstitialLoadAds.isEnabled = true
                   binding.btnInterstitialLoadAds.alpha = 1f
               }
           }
       }

       //**{Reward Ads}**\\
       AdManager.loadRewarded(
           this,
           getString(R.string.reward_ad_unit_id)
       ) {
           binding.btnRewardedLoadAds.isEnabled = true
           binding.btnRewardedLoadAds.alpha = 1f
       }

       binding.btnRewardedLoadAds.setOnClickListener {

           binding.btnRewardedLoadAds.isEnabled = false
           binding.btnRewardedLoadAds.alpha = 0.5f

           AdManager.showRewarded(
               this,
               onRewardEarned = { rewardItem ->

                   val amount = rewardItem.amount
                   val type = rewardItem.type

                   Toast.makeText(this, "Earned $amount $type", Toast.LENGTH_SHORT).show()
               },
               onDismiss = {

                   // Preload next rewarded ad
                   AdManager.loadRewarded(
                       this,
                       getString(R.string.reward_ad_unit_id)
                   ) {
                       binding.btnRewardedLoadAds.isEnabled = true
                       binding.btnRewardedLoadAds.alpha = 1f
                   }
               }
           )
       }



       AdManager.loadNativeAd(
           this,
           getString(R.string.native_ad_unit_id),
           binding.flContainer
       )

   }

   override fun onResume() {
       super.onResume()
       AdManager.destroyNative()
   }
}
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📌 Conclusion
Implementing all ad formats correctly helps maximize revenue while maintaining good UX. A well-structured ad strategy can significantly improve both user retention and earnings.

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