After some struggling,here is the fullest list of emojis found in iOS8.3 written in Swift.Browse in Safari for best compatibility.[April 8 2015]
let allEmojis = ["??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????????","???????????","???????????","???????????","????????","????????","???????????","???????????","???????????","????????","????????","???????????","???????????","???????????","??","??","??","??","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","??","??","??","??","??","??","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????????","????????","??","???????????","???????????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","??","????","????","????","????","????","??","??","??","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","?","???","???","???","???","???","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","?","???","???","???","???","???","??","????","????","????","????","????","?","???","???","???","???","???","?","???","???","???","???","???","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","?","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","??","??","??","????","????","????","????","????","??","????","????","????","????","????","??","????","????","????","????","????","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","???","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","????","??","??","??","??","?","?","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","秘?","祝?","??","??","??","??","???","??","??","??","??","??","??","??","???","??","??","??","?","?","??","??","??","??","??","??","??","??","??","??","??","???","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","?","?","?","?","??","??","??","??","↗?","↘?","↙?","↖?","??","??","??","??","??","??","??","??","??","??","#?","0?","1?","2?","3?","4?","5?","6?","7?","8?","9?","??","??","??","??","??","??","??","??","??","?","?","?","?","??","??","??","?","?","?","??","??","?","?","??","??","?","?","?","??","??","?","??","??","??","??","??","??","??","??","??","?","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??","??"]
Also you could write them into a plist file for persistence.
(allEmojis as NSArray).writeToFile(NSHomeDirectory() + "/emoji.plist", atomically: true)