Question 1

How to add a blurred shadow like iOS 10 music app in Swift?

Accepted Answer

Use ShadowView's container-based approach by creating a ShadowView instance, adding your UIViews as subviews, and setting properties like shadowRadius and shadowOffset. Refer to the programmatic example in the README for code snippets and ensure to call updateShadow() in viewDidLayoutSubviews for proper updates.

Question 2

ShadowView vs CALayer shadows: which is better?

Accepted Answer

ShadowView simplifies shadow management with a higher-level API and storyboard support, but CALayer offers more control for custom animations and performance. Choose ShadowView for ease and Gaussian effects; use CALayer for fine-grained real-time control or minimal dependencies.

Question 3

How to update shadows dynamically in ShadowView?

Accepted Answer

For normal shadows, changes to properties like shadowRadius automatically update the view. For Gaussian shadows, you must call updateShadow() manually after layout changes, as shown in the viewDidLayoutSubviews example, since it relies on container-based rendering.

Question 4

Can I use ShadowView with SwiftUI?

Accepted Answer

No, ShadowView is designed for UIKit and storyboard-based iOS development, as indicated by its UIView integration and lack of SwiftUI support. For SwiftUI, consider native shadow modifiers or other libraries tailored to that framework.

Question 5

How to install ShadowView without CocoaPods?

Accepted Answer

You can install manually by downloading and dropping the ShadowView files into your project, or use Carthage as detailed in the README. The manual method involves adding all files from the ShadowView directory, but Carthage requires additional setup with run script phases.

Question 6

Does ShadowView support real-time animations?

Accepted Answer

No, the README explicitly warns against using it with views like sliders or activity indicators because shadows do not update in real-time. It's best suited for static or semi-static UI elements where changes are infrequent.

ShadowView

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