Swift: Magical Grid - Hash Map Views Dictionary (Ep 2)

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- Published on Apr 17, 2017馃審 Public

Today we figure out how to select the cells that are inside of our grid based on the location of our gesture. First I'll demonstrate a method that isn't all that efficient. Then we take a look at an optimization that uses a HashMap also known as a Dictionary for our cells. Enjoy. Instagram Firebase Course https://www.letsbuildthatapp.com/cour... Facebook Group https://www.facebook.com/groups/12406... iOS Basic Training Course https://www.letsbuildthatapp.com/basi... Completed Source Code https://www.letsbuildthatapp.com/cour... Follow me on Twitter: https://twitter.com/buildthatapp