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Showing posts with label First Responder. Show all posts
Showing posts with label First Responder. Show all posts

Understanding Responder Chain

Before get involved with responder chain I will tell you what is first responder in your app. First responder in your app is a view, or a view controller or any active user interface window. It can be pronounced as a designated receiver for all the events that aren't determined by hit testing i.e. (testing deliver events based on geometry of your window.).Here are examples of the events that are delivered  to the first responder of your app.