Admob Banner Ad interstitialid Not Show

[mohaarar]

Hello guys

i have a problem Banner Ad interstitialid Not show in my game he show me error Interstitial Ads loading failed

This code :

package bb.SkateBoardingGames;

import org.cocos2d.layers.CCScene;
import org.cocos2d.nodes.CCDirector;
import org.cocos2d.opengl.CCGLSurfaceView;

import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.InterstitialAd;

import android.app.Activity;
import android.content.SharedPreferences;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v4.view.ViewPager.LayoutParams;
import android.util.DisplayMetrics;
import android.view.KeyEvent;
import android.widget.RelativeLayout;
import android.widget.Toast;

public class MainActivity extends Activity {
   
    private CCGLSurfaceView mGLSurfaceView;

    //<!-- Admob Ads Using Google Play Services SDK -->
    private static final String AD_UNIT_ID = "ca-app-pub-*****************";
    private static final String AD_INTERSTITIAL_UNIT_ID = "ca-app-pub-*****************";
   

    /** The Admob ad. */
    private InterstitialAd interstitialAd = null;
    public AdView adView = null;

    public static MainActivity app;
   
    public void onCreate(Bundle savedInstanceState)
    {
        app = this;
       
        super.onCreate(savedInstanceState);
               
        // set view
        mGLSurfaceView = new CCGLSurfaceView(this);
       
       
        //Ads ----------------
        // Create the adView
         RelativeLayout layout = new RelativeLayout(this);
         layout.setLayoutParams(new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

         //<!-- Ads Using Google Play Services SDK -->
         adView = new AdView(this);
         adView.setAdSize(AdSize.SMART_BANNER);
         adView.setAdUnitId(AD_UNIT_ID);
        
         // Add the adView to it
         RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
                 LayoutParams.WRAP_CONTENT,
                 LayoutParams.WRAP_CONTENT);
         params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
         params.addRule(RelativeLayout.CENTER_HORIZONTAL, RelativeLayout.TRUE);
        
         adView.setLayoutParams(params);
        
         layout.addView(mGLSurfaceView);
         layout.addView(adView);
        
         setContentView(layout);
         //New AdRequest
         AdRequest adRequest = new AdRequest.Builder().build();
         adView.loadAd(adRequest);
         //-----------------------------------------------------Interstitial Add
         // Create an Interstitial ad.
         interstitialAd = new InterstitialAd(this);
         interstitialAd.setAdUnitId(AD_INTERSTITIAL_UNIT_ID);
         interstitialAd.setAdListener(new AdListener() {
               @Override
               public void onAdLoaded() {
                   interstitialAd.show();
               }

               @Override
               public void onAdFailedToLoad(int errorCode) {
                   Toast.makeText(getApplicationContext(), "Interstitial Ads loading failed", Toast.LENGTH_SHORT).show();
               }
         });
          // Load the interstitial ad.
         //showInterstitialAds();

         //----------------------
        // set director
        CCDirector director = CCDirector.sharedDirector();
        director.attachInView(mGLSurfaceView);
        director.setAnimationInterval(1/60);

        // get display info
        DisplayMetrics displayMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        G.display_w = displayMetrics.widthPixels;
        G.display_h = displayMetrics.heightPixels;
        G.scale = Math.max(G.display_w/1280.0f, G.display_h/800.0f);
        G.width = G.display_w / G.scale;
        G.height = G.display_h / G.scale;
       
        // get data
        SharedPreferences sp = CCDirector.sharedDirector().getActivity().getSharedPreferences("GameInfo", 0);
        G.music = sp.getBoolean("music", true);
        G.sound = sp.getBoolean("sound", true);
       
        // create sound
        G.soundMenu = MediaPlayer.create(this, R.raw.menu);
        G.soundMenu.setLooping(true);
        G.soundGame = MediaPlayer.create(this, R.raw.game);
        G.soundGame.setLooping(true);
        G.soundCollide = MediaPlayer.create(this, R.raw.collide);
        G.soundJump = MediaPlayer.create(this, R.raw.jump);
        G.soundLongJump = MediaPlayer.create(this, R.raw.long_jump);
        G.soundSpeedDown = MediaPlayer.create(this, R.raw.speed_down);
        G.soundSpeedUp = MediaPlayer.create(this, R.raw.speed_up);
        G.soundDirection = MediaPlayer.create(this, R.raw.direction_sign);
        G.soundClick = MediaPlayer.create(this, R.raw.menu_click);
        G.soundCollect = MediaPlayer.create(this, R.raw.collect);
        G.bgSound = G.soundMenu;
            
        // show menu
        CCScene scene = CCScene.node();
        scene.addChild(new MenuLayer(true));
        director.runWithScene(scene);
    } 
   
    @Override
    public void onPause()
    {
        if (adView != null) {
              adView.pause();
            }
       
        super.onPause();
        G.bgSound.pause();
        CCDirector.sharedDirector().onPause();
    }

    @Override
    public void onResume()
    {
        super.onResume();
       
        if (adView != null) {
            adView.resume();
          }
       
        if( G.music ) G.bgSound.start();
       
        CCDirector.sharedDirector().onResume();
    }

    @Override
    public void onDestroy()
    {
        // Destroy the AdView.
        if (adView != null) {
          adView.destroy();
        }
       
        super.onDestroy();
        G.bgSound.pause();
        CCDirector.sharedDirector().end();
    }
   
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event)
    {
        if( keyCode == KeyEvent.KEYCODE_BACK )
        {
            CCDirector.sharedDirector().onKeyDown(event);
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }
   
    public void showInterstitialAds()
    {
        runOnUiThread(new Runnable() {
            public void run() {
                 AdRequest interstitialAdRequest = new AdRequest.Builder().build();
                 interstitialAd.loadAd(interstitialAdRequest);
            }
        });
    }
}

please help Me

i need solve this problem