插頁式廣告(admob)只能使用一次

這幾天我在做一個測驗，目標是點擊一個按鈕去activity2并顯示插頁式廣告。現在，由于以下資訊，這是結果：link

問題： 回到主頁面（MainActivity）后，我按下按鈕重新進入activity2，它不再顯示。只有當我關閉應用程式并打開應用程式并按下活動按鈕 2 時才會顯示廣告。

MainActivity 代碼

public class MainActivity extends Activity {


    private InterstitialAd mInterstitialAd;
    private static final String TAG = "InfoApp";
    

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_activity);


     //***** Initialize the Mobile Ads SDK.*********** -//
        MobileAds.initialize(this, new OnInitializationCompleteListener() {
            @Override
            public void onInitializationComplete(InitializationStatus initializationStatus) {
            }
        });
        //**********************************************************//

      adrequest_interstitial = new AdRequest.Builder().build();

      InterstitialAd.load(this,ConfigPubli.Ads_interstitial, adrequest_interstitial,
                new InterstitialAdLoadCallback()
                {
                    @Override
                    public void onAdLoaded(@NonNull InterstitialAd interstitialAd)
                    {
                        mInterstitialAd = interstitialAd;
                        Log.i(TAG, "onAdLoaded");

                    }

                    @Override
                    public void onAdFailedToLoad(@NonNull LoadAdError loadAdError)
                    {
                        // Handle the error
                        Log.i(TAG, loadAdError.getMessage());
                        mInterstitialAd = null;
                    }

                });
     }


      public void adstot(Intent i){


        mInterstitialAd.setFullScreenContentCallback(new FullScreenContentCallback() {
            @Override
            public void onAdDismissedFullScreenContent() {
                mInterstitialAd = null;
                startActivity(i);
                
            }

            @Override
            public void onAdFailedToShowFullScreenContent(@NonNull AdError adError) {
                mInterstitialAd = null;
                startActivity(i);

            }

        });
    }



    public void page2(View view){ //button

        Intent i = new Intent (this, Activity2.class);
        i.putExtra("valor","page2");

        int randomAd = (int)(Math.random()*10);
        if (mInterstitialAd != null && randomAd<=1) {   
            adstot(i);
            mInterstitialAd.show(this);   
        }
        else{
            startActivity(i);
        }   
     }
}

感謝您的回答

uj5u.com熱心網友回復：

無論何時InterstitialAd顯示，變數mInterstitialAd都設定為null。那么，如何mInterstitialAd才能顯示兩次呢？

您應該在之后發出新請求以獲取插頁式廣告mInterstitialAd = null;

嘗試如下：

public class MainActivity extends Activity {


    private InterstitialAd mInterstitialAd;
    private static final String TAG = "InfoApp";
    

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_activity);


     //***** Initialize the Mobile Ads SDK.*********** -//
        MobileAds.initialize(this, new OnInitializationCompleteListener() {
            @Override
            public void onInitializationComplete(InitializationStatus initializationStatus) {
                
                // Initialization complete
                // You are now free to make an ad request
                loadAnInterstitial();
            }
        });
        //**********************************************************//

     }

    private void loadAnInterstitial(){
      adrequest_interstitial = new AdRequest.Builder().build();

      InterstitialAd.load(this,ConfigPubli.Ads_interstitial, adrequest_interstitial,
                new InterstitialAdLoadCallback()
                {
                    @Override
                    public void onAdLoaded(@NonNull InterstitialAd interstitialAd)
                    {
                        mInterstitialAd = interstitialAd;
                        Log.i(TAG, "onAdLoaded");

                    }

                    @Override
                    public void onAdFailedToLoad(@NonNull LoadAdError loadAdError)
                    {
                        // Handle the error
                        Log.i(TAG, loadAdError.getMessage());
                        mInterstitialAd = null;
                    }

                });
      }

      public void adstot(Intent i){


        mInterstitialAd.setFullScreenContentCallback(new FullScreenContentCallback() {
            @Override
            public void onAdDismissedFullScreenContent() {
                mInterstitialAd = null;
                startActivity(i);
                
                // make a new ad request here
                loadAnInterstitial();
                
            }

            @Override
            public void onAdFailedToShowFullScreenContent(@NonNull AdError adError) {
                mInterstitialAd = null;
                startActivity(i);
                
                // make a new ad request here
                loadAnInterstitial();
                
            }

        });
    }



    public void page2(View view){ //button

        Intent i = new Intent (this, Activity2.class);
        i.putExtra("valor","page2");

        int randomAd = (int)(Math.random()*10);
        if (mInterstitialAd != null && randomAd<=1) {   
            adstot(i);
            mInterstitialAd.show(this);   
        }
        else{
                  
            startActivity(i);

            // make a new ad request here
            loadAnInterstitial();
        }   
     }
}

就這樣。希望它會有所幫助。

uj5u.com熱心網友回復：

更新的代碼（另一個版本）：我添加了一個（如果），點擊按鈕 6 次后，它將加載一個新廣告。

  public void page2(View view){ //button
    
            Intent i = new Intent (this, Activity2.class);
            i.putExtra("valor","page2");
    
            int randomAd = (int)(Math.random()*10);
            if (mInterstitialAd != null && randomAd<=1) {   
                adstot(i);
                mInterstitialAd.show(this);   
            }
            else{
                      
                startActivity(i);
    
                if(countclick==6)
                {
                 loadAnInterstitial(); 
                }else{ 
                  countclick=countclick 1;
                 }
            }   
         }

它有效！，我希望 google admob 不會認為它執行不力。

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