How to change the frequency of interstitial ads

Question

Currently, my home page has 10 buttons and each button has an interstitial attached.

    if (mInterstitialAd.isLoaded()) {
        mInterstitialAd.show();
    } else {
        Intent intent = new Intent(this, magic.class);
        startActivity(intent);
    }

Loading an interstitial for each new intent is a little bit overboard though. How can I manipulate the interstitials to load after every 5 intents?

Answer 1

Create an integer

private int showbigad =0;

In OnCreate...

SharedPreferences prefs = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE); 
String restoredText = prefs.getString("text", null);
if (restoredText != null) {
int advalue = prefs.getInt("showad", 0); 
showbigad=advalue;
}

Now with each click we add to showbigad

EACHONEOFYOURBUTTONS.onClick....{
showbigad =showbigad+1;
SharedPreferences.Editor editor = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE).edit();
editor.putInt("showad", showbigad);
editor.commit();
}});

Now if buttons have been clicked more than 4 times the interstitial ad will show

if (mInterstitialAd.isLoaded()&& showbig>4) {
    mInterstitialAd.show();
} else {
    Intent intent = new Intent(this, magic.class);
    startActivity(intent);
}