Instance Method

previousLocationInView:

Returns the previous location of the receiver in the coordinate system of the given view.

Declaration

- (CGPoint)previousLocationInView:(UIView *)view;

Parameters

view

The view object in whose coordinate system you want the touch located. A custom view that is handling the touch may specify self to get the touch location in its own coordinate system. Pass nil to get the touch location in the window’s coordinates.

Return Value

This method returns the previous location of a UITouch object in the coordinate system of the specified view. Because the touch object might have been forwarded to a view from another view, this method performs any necessary conversion of the touch location to the coordinate system of the specified view.

See Also

Getting the Location of a Touch

- locationInView:

Returns the current location of the receiver in the coordinate system of the given view.

view

The view to which touches are being delivered, if any.

window

The window in which the touch initially occurred.

majorRadius

The radius (in points) of the touch.

majorRadiusTolerance

The tolerance (in points) of the touch’s radius.

- preciseLocationInView:

Returns a precise location for the touch, when available.

- precisePreviousLocationInView:

Returns a precise previous location for the touch, when available.