It’s a pity that Apple did not provide any options for blur effect. But this workaround worked for me – animating the blur effect and pausing it before completion. func blurEffectView(enable enable: Bool) { let enabled = self.blurView.effect != nil guard enable != enabled else { return } switch enable { case true: let blurEffect … Read more
Finally figured it out. In a UIViewController change the view’s background to blue Drag a Visual Effect Views with Blur and Vibrancy object into the view, so it’s added as a subview In the first Visual Effect View, set up Auto Layout constraints to its containing View: Leading, Trailing, Top, and Bottom (to make the … Read more
Changing alpha is not a perfect solution. It does not affect blur intensity. You can setup an animation from nil to target blur effect and manually set time offset to get desired blur intensity. Unfortunately iOS will reset the animation offset when app returns from background. Thankfully there is a simple solution that works on … Read more
I think this is new in iOS9, but you can now set the effect of a UIVisualEffectView inside an animation block: let overlay = UIVisualEffectView() // Put it somewhere, give it a frame… UIView.animate(withDuration: 0.5) { overlay.effect = UIBlurEffect(style: .light) } Set it to nil to remove. VERY IMPORTANT – When testing this on the … Read more