fix: add @objc to touch methods in ViewModel examples

[yoyoyoyolol]

Summary

The touch methods in the ViewModel example classes (RiveSlider and RiveButton) were not being called because they lacked the @objc attribute.

Details

Since RiveStateMachineDelegate is an @objc protocol with optional methods, the runtime uses respondsToSelector: to check for implementation. In Swift, these methods must be explicitly marked with @objc (even if the class inherits from NSObject) to be visible to the Objective-C runtime for dynamic dispatch in this context.

Without this change, the slider and button in the "ViewModel Examples" section of the example app are non-functional.

Affected Files

• Example-iOS/Source/Examples/ViewModel/RiveSlider.swift
• Example-iOS/Source/Examples/ViewModel/RiveButton.swift