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Asked: 2026-06-17T03:19:37+00:00

I’m investigate dragging UIView after LongPressGesture .Some code using touchesMoved: , some code check

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I’m investigate dragging UIView after LongPressGesture.Some code using touchesMoved:, some code check UIGestureRecognizerStateChange. I still not understand, which one is better?

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  1. Editorial Team

    From the manual:

    When a gesture recognizer recognizes a discrete gesture, it sets the state property to UIGestureRecognizerStateRecognized. If the gesture is continuous, it sets the state property first to UIGestureRecognizerStateBegan; then, for each change in position of the gesture, it sets (or resets) the property to UIGestureRecognizerStateChanged. When the gesture ends, it sets state to UIGestureRecognizerStateEnded. If at any point a gesture recognizer realizes that this multitouch sequence is not its gesture, it sets its state to UIGestureRecognizerStateFailed.

    So if the user touches the screen always generates a touchedMoved event, and if it’s in the middle of a continuous gesture it also causes the UIGestureRecognizerStateChanged state to be set.

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