coalescedTouches(for:)
Returns all of the touch objects associated with the specified main touch.
Declaration
func coalescedTouches(for touch: NSTouch) -> [NSTouch]Parameters
- touch:
A touch that occurred in the Touch Bar. The method uses this object to determine which additional touch objects to return.
Return Value
An array that contains the NSTouch objects AppKit generated since the last event, but didn’t deliver. This method returns nil if the object in the touch parameter isn’t associated with the current event.
Discussion
Use this method to obtain additional touch objects that the system received but didn’t deliver to your app. You might use these extra touch objects to create a more precise path for the touch sequence.
AppKit coalesces touches only when they occur in the Touch Bar; it doesn’t coalesce touch events on the track pad. This method returns the complete sequence of touches since the last event, and it returns them in the same order the system reported them. The last object in the array is a copy of the same object you provided in the touch parameter.