ios open third party app within my own app

Question

I am new to ios.In my app we have documents like PDF,.DOC if we click that document means it will check wheather any third party app is installed in device or not.if any app installed (Ex.PDF Reader)the document is open that app.After opening the document suppose if user close the app i want to navigate to my APP

How to do that?

Answer 1

You could use apples PDF Kit and open the pdf within your own app that should give you the control you want.

https://developer.apple.com/library/mac/documentation/GraphicsImaging/Conceptual/PDFKitGuide/PDFKit_Prog_Intro/PDFKit_Prog_Intro.html#//apple_ref/doc/uid/TP40001863-CH203-SW1