Comment afficher les annonces interstitielles à l'arrière Bouton Pressé Android

Question

Hye friends! J'ai besoin d'aide de vous les gars concernant mon application Android. Fondamentalement, mon projet android est l'onglet fragment où je veux montrer des publicités interstitielles lorsque l'utilisateur clique sur le bouton de retour avant de fermer l'application.

de bien vouloir vérifier mon codage ci-dessous et aidez-moi à trier cette question aussi rapide que vous pouvez vous remercier :)

MainActivity.java

public class MainActivity extends AppCompatActivity { 



@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
    setSupportActionBar(toolbar); 



    TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/01")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/02")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/03")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/04")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/05")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/06")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/07")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/08")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/09")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/10")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/11")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/12")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/13")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/14")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/15")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/16")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/17")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/18")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/19")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/20")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/21")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/22")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/23")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/24")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/25")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/26")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/27")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/28")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/29")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/30")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/31")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/32")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/33")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/34")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/35")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/36")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/37")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/38")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/39")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/40")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/41")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/42")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/43")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/44")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/45")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/46")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/47")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/48")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/49")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/50")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/51")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/52")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/53")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/54")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/55")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/56")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/57")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/58")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/59")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/60")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/61")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/62")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/63")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/64")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/65")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/66")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/67")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/68")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/69")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/70")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/71")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/72")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/73")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/74")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/75")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/76")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/77")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/78")); 
    tabLayout.addTab(tabLayout.newTab().setText("Ashaar/79")); 


    tabLayout.setTabGravity(TabLayout.GRAVITY_FILL); 


    final ViewPager viewPager = (ViewPager) findViewById(R.id.pager); 
    final PagerAdapter adapter = new PagerAdapter 
      (getSupportFragmentManager(), tabLayout.getTabCount()); 
    viewPager.setAdapter(adapter); 
    viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout)); 
    tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() { 
     @Override 
     public void onTabSelected(TabLayout.Tab tab) { 
      viewPager.setCurrentItem(tab.getPosition()); 
     } 

     @Override 
     public void onTabUnselected(TabLayout.Tab tab) { 

     } 

     @Override 
     public void onTabReselected(TabLayout.Tab tab) { 

     } 


    }); 
} 





@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    getMenuInflater().inflate(R.menu.menu_main, menu); 
    return true; 
} 



public void onBackPressed() { 
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
      MainActivity.this); 

    // set title 
    alertDialogBuilder.setTitle("Exit"); 

    // set dialog message 
    alertDialogBuilder 
      .setMessage("Do you really want to exit?") 
      .setCancelable(false) 
      .setPositiveButton("Yes",new DialogInterface.OnClickListener() { 
       public void onClick(DialogInterface dialog,int id) { 
        // if this button is clicked, close 
        // current activity 
        MainActivity.this.finish(); 
       } 
      }) 
      .setNegativeButton("No", new DialogInterface.OnClickListener() { 
       public void onClick(DialogInterface dialog, int id) { 
        // if this button is clicked, just close 
        // the dialog box and do nothing 
        dialog.cancel(); 
       } 
      }); 

    // create alert dialog 
    AlertDialog alertDialog = alertDialogBuilder.create(); 

    // show it 
    alertDialog.show(); 
} 

public void sharevia(MenuItem item) { 
    Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND); 
    sharingIntent.setType("text/plain"); 
    String shareBody = "https://play.google.com/store/apps/details?id=com.islamichub.dil.jalay"; 
    sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "https://play.google.com/store/apps/details?id=com.islamichub.dil.jalay"); 
    sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody); 
    startActivity(Intent.createChooser(sharingIntent, "Share via")); 
} 

public void rating(MenuItem item) { 
    startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=com.islamichub.dil.jalay"))); 
} 

public void findmore(MenuItem item) { 
    startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q=pub:IslamicHub"))); 
} 

public void aboutme(MenuItem item) { 
    startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.fb.com/topitideas"))); 
} 

activity_main.xml

<RelativeLayout 
android:id="@+id/main_layout" 
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" 
xmlns:ads="http://schemas.android.com/apk/res-auto" 
android:layout_height="match_parent" 
tools:context=".MainActivity"> 

<android.support.v7.widget.Toolbar 
    android:id="@+id/toolbar" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_alignParentTop="true" 
    android:background="?attr/colorPrimary" 
    android:elevation="6dp" 
    app:titleTextColor="#ffffff" 
    android:minHeight="?attr/actionBarSize" 
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" 
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/> 

<android.support.design.widget.TabLayout 
    android:id="@+id/tab_layout" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/toolbar" 
    android:background="?attr/colorPrimaryDark" 
    android:elevation="6dp" 
    app:tabSelectedTextColor="#ffff00" 
    app:tabTextColor="#000000" 
    android:minHeight="?attr/actionBarSize" 
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" 
    app:tabMode="scrollable"/> 

<android.support.v4.view.ViewPager 
    android:id="@+id/pager" 
    android:layout_width="match_parent" 
    android:layout_height="fill_parent" 
    android:layout_below="@id/tab_layout" /> 

Answer 1

Je suppose que vous êtes debout sur l'activité principale et il n'y a pas d'activité dans stack.You besoin de passer outre la méthode onBackPressed() et ajoutez le code pour interstetial ajouter à onBackPressed()

@Override 
public void onBackPressed() { 
//Interstitial code goes here 
} 

Pour ajouter le code interstitiel ou l'aide du code se référer au lien ci-dessous lien https://firebase.google.com/docs/admob/android/interstitial

Answer 2

Veuillez charger l'instance d'annonce dans la méthode onCreate(). Ainsi, vous pouvez pré-visualiser une annonce sans chargement. Et notez comme ..

@Override 
public void onBackPressed() { 
    showAdvertisement(); 
} 

private void showAdvertisement() { 
    if (mInterstitialAd.isLoaded()) { 
     mInterstitialAd.show(); 
    } else { 
     finish(); 
    } 
} 

private void loadInterstitialAd() { 
    AdRequest adRequest = new AdRequest.Builder() 
      .build(); 

    mInterstitialAd.loadAd(adRequest); 
}