preloading ad view

i have aplication with a very short lifespan. in most cases a services pops a activity and the user reacts within a few seconds and dismisses the poped activity.

In this activity i show a mobclix advertisment. But loading of this takes about 5 seconds, this is to long for my use.

So can i preload this ad in the service , and display it directly as开发者_如何学运维 i display my activity?

thanks