OneForAll | OneForAll是一款功能强大的子域收集工具 | Security Testing library

UPDATE 2

The question in its current form has been answered and accepted even though a problem remains viz. the code now compiles with 0 warnings but still remains unresponsive to gestures. Code will be updated once the problem is solved, hopefully, through the process of preparing a new question. A new question has been posted here.

As far as I know this question has never been asked or answered in any post I have read (see possible duplicates below).

I am trying to write Objective C test code to send either long press, tap or pan messages from any area defined by a rectangular UIView on an iPhone screen. So far I can send discrete or continuous messages reliably using either UILongPressGesture, UITapGesture or UIPanGesture if both UIView and handler methods are located in the UIViewController.

Ultimately I want to send gesture messages from several subclassed UIViews to common handlers in the UIViewControllerbut I hit problems when I tried to do it. While writing the code I studied an Apple document on using delegates for UIGestureRecognition together with Objective C methods in Touches (see Note below) and examples found in SO posts (Links below).

The code fails to respond to gestural input. Initially it compiled with four warnings and two issues:

1. duplicate protocol

Duplicate protocol definition of 'UIGestureRecognizerDelegate' is ignored

UPDATE 1

This has now been addressed. Paul’s answer clarifies a point I hadn’t understood until now. In response I changed the name of the protocol, tested the code and updated it in this post.

In OneOfSeveralSubviews.h the protocol is now called FirstGestureRecognizerDelegate. Relevant changes have been made in the ViewController e.g.