DynamicBlurView is a dynamic and high performance UIView subclass for Blur.

• Since using the CADisplayLink, it is a high performance.
• Can generate a plurality of BlurView.

• Swift 4.0
• iOS 8.0 or later
• tvOS 9.0 or later

Add the following to your Podfile:

pod "DynamicBlurView"

Add the following to your Cartfile:

github "KyoheiG3/DynamicBlurView"

Blur the whole

let blurView = DynamicBlurView(frame: view.bounds)
blurView.blurRadius = 10
view.addSubview(blurView)

Animation

UIView.animateWithDuration(0.5) {
    blurView.blurRadius = 30
}

Ratio

blurView.blurRatio = 0.5

var drawsAsynchronously: Bool

• When true, it captures displays image and blur it asynchronously. Try to set true if needs more performance.
• Asynchronous drawing is possibly crash when needs to process on main thread that drawing with animation for example.
• Default is false.

var blurRadius: CGFloat

• Strength of the blur.

var trackingMode: TrackingMode

• Mode for update frequency.
• Common is constantly updated.
• Tracking is only during scrolling update.
• None is not update.

var blendColor: UIColor?

• Blend in the blurred image.

var iterations: Int

• Number of times for blur.
• Default is 3.

var isDeepRendering: Bool

• If the view want to render beyond the layer, should be true.
• Default is false.

var blurRatio: CGFloat

• When none of tracking mode, it can change the radius of blur with the ratio. Should set from 0 to 1.
• Defauot is 1.

var quality: CaptureQuality

• Quality of captured image.
• Default is medium.

func refresh()

• Remove cache of blur image then get it again.

func remove()

• Remove cache of blur image.

func animate()

• Should use when needs to change layout with animation when is set none of tracking mode.

• Inspired by FXBlurView in nicklockwood.

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Under the MIT license. See LICENSE file for details.