SDLPinchGesture Class Reference

-initWithFirstTouch:secondTouch:

@abstract Initializes a pinch gesture.

Objective-C

- (nonnull instancetype)initWithFirstTouch:(nonnull SDLTouch *)firstTouch
                               secondTouch:(nonnull SDLTouch *)secondTouch;

Swift

init(firstTouch: SDLTouch, secondTouch: SDLTouch)

Parameters

firstTouch

First touch of the gesture

secondTouch

Second touch of the gesture

firstTouch

@abstract First touch of a pinch gesture.

Objective-C

@property (nonatomic, strong) SDLTouch *_Nonnull firstTouch;

Swift

var firstTouch: SDLTouch { get set }

secondTouch

@abstract Second touch of a pinch gesture.

Objective-C

@property (nonatomic, strong) SDLTouch *_Nonnull secondTouch;

Swift

var secondTouch: SDLTouch { get set }

distance

@abstract Distance between first and second touches.

Objective-C

@property (nonatomic, readonly) CGFloat distance;

Swift

var distance: CGFloat { get }

center

@abstract Center point between first and second touches.

Objective-C

@property (nonatomic, readonly) CGPoint center;

Swift

var center: CGPoint { get }

isValid

@abstract Returns whether or not the pinch gesture is valid. This is true if both touches are non null.

Objective-C

@property (nonatomic, readonly) BOOL isValid;

Swift

var isValid: Bool { get }