I’m sure you have seen a Twitter client such as Twittelator Pro or Tweetie 2 count down the characters as you type your Tweet. This is done by responding to the Editing Changed action on a UITextField. Today, I will show you how you can implement this functionality in your application as well as show you some other real world examples of responding to this action. Here are a few of the uses that we will discuss:
- Countdown of characters allowed – Used when the user is limited by a certain number of characters
- Word filter – useful in filtering out swear words or other unwanted text
- Live translator – our example will translate english to 1337
via icodeblog.com
Should able to use in user input functions
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