title: Delay in loading banner ads from admob
body: <p>I've been adding admob banner ads into my android app using the standard code available in the get started section on their website. Everything is fine except there's a few second delay after the activity starts before the ad is loaded. I've seen people having the same problem and asking about preloading the ad however there's no clear solution available anywhere. I know most apps on the market don't have this delay so my question is how to work around it? I could load all the ads into an array list in my loading activity and store them in shared preferences however I have read that it's discouraged. </p>