UIApplicationDelegate iOS

I am new to iOS programming and Objective C and trying to understand the UIApplicationDelegate protocol. I am adding Dropbox support to my app and need more callbacks than the Juce Delegate classes provide, like openURL and didFinishLaunchingWithOptions.

Is there a way to extend the JuceAppStartupDelegate and the rest without messing the Juce code?

Never mind, I generated an empty Xcode iOS project and added an empty IntroJucer Juce project to it. Problem solved.