How to show banner ads in fragment Revmob?

I would like to show banners in a fragment instead of an activity, how can I do this?

My Fragment:

Variables:

RevMob revmob;
Activity currentActivity;
Functions:

My Code:

public void startRevMobSession(){
currentActivity = this;
revmob = RevMob.startWithListener(currentActivity, new RevMobAdsListener() {
    @Override public void onRevMobSessionStarted() {loadBanner();}
    @Override public void onRevMobSessionNotStarted(String message) {}});
}

public void loadBanner() {
revmob.showBanner(currentActivity, Gravity.BOTTOM, null, new RevMobAdsListener() {
    @Override public void onRevMobAdReceived() {}
    @Override public void onRevMobAdNotReceived(String message) {}
    @Override public void onRevMobAdDismissed() {}
    @Override public void onRevMobAdClicked() {}
    @Override public void onRevMobAdDisplayed() {}});
}

onCreate:

startRevMobSession();

It's working when I'm using it in an activity, but I would like to use it in a fragment. How can I do so?

In a fragment you should do:

currentActivity = getActivity();

instead of

currentActivity = this;

That's the only difference, it should all work properly then.