cancelVideoZoomRamp()
Smoothly ends a zoom transition in progress.
Declaration
func cancelVideoZoomRamp()Discussion
Calling this method is equivalent to calling ramp(toVideoZoomFactor:withRate:) with a rate of zero. If a zoom transition is in progress, the transition slows to a stop (instead of stopping abruptly).
Before calling this method, you must call lockForConfiguration() to acquire exclusive access to the device’s configuration properties. If you don’t, calling this method raises an exception. When you finish configuring the device, call unlockForConfiguration() to release the lock and allow other devices to configure the settings.