Select text while Text to Speech is running

Question

I am developing an ipad application in which I want to add functionality, as shown below: -

When the user presses the play button, text to speech will begin to play that text at this time, this word will be highlighted as they are read.

I know about the built-in iOS function, but I want to do it programmatically.

I searched a lot and got the following:

Link 1

Link 2

Link 3

If anyone knows any API or some kind of built-in framework. Let me know.

Rate your time.

Answer 1

You can use the brilliant text-to-speech library built into iOS 7 called AVSpeechSynthesizer.

You can manage the speech, as well as receive notifications about it, using the delegation methods of AVSpeechSynthesizer. A method that should help you achieve the desired functionality should be speechSynthesizer:willSpeakRangeOfSpeechString:utterance:

See the AVSpeechSynthesizer , as well as the AVSpeechSynthesizerDelegate API link

This post , written by Matt Thompson at NSHipster, shows an example with the same functionality.