ThePain/Swiftgram
1
0
Fork 0
mirror of https://github.com/Swiftgram/Telegram-iOS.git synced 2025-06-16 05:55:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

Update shimmer effect

Browse Source
This commit is contained in:
Isaac 2025-04-29 16:43:18 +02:00
parent 313833b7d9
commit 254aea276b
1 changed files with 27 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
submodules/ShimmerEffect/Sources/ShimmerEffect.swift
View File

@ -174,6 +174,10 @@ public final class ShimmerEffectForegroundView: UIView {
} }
} }
private let shadowImage: UIImage? = {
UIImage(named: "Stories/PanelGradient")
}()
public final class ShimmerEffectForegroundNode: ASDisplayNode { public final class ShimmerEffectForegroundNode: ASDisplayNode {
private var currentBackgroundColor: UIColor? private var currentBackgroundColor: UIColor?
private var currentForegroundColor: UIColor? private var currentForegroundColor: UIColor?
@ -232,23 +236,32 @@ public final class ShimmerEffectForegroundNode: ASDisplayNode {
let image: UIImage? let image: UIImage?
if horizontal { if horizontal {
image = generateImage(CGSize(width: effectSize ?? 320.0, height: 16.0), opaque: false, scale: 1.0, rotatedContext: { size, context in let baseAlpha: CGFloat = 0.1
image = generateImage(CGSize(width: effectSize ?? 200.0, height: 16.0), opaque: false, scale: 1.0, rotatedContext: { size, context in
context.clear(CGRect(origin: CGPoint(), size: size)) context.clear(CGRect(origin: CGPoint(), size: size))
context.setFillColor(backgroundColor.cgColor)
context.fill(CGRect(origin: CGPoint(), size: size))
context.clip(to: CGRect(origin: CGPoint(), size: size)) let foregroundColor = UIColor(white: 1.0, alpha: min(1.0, baseAlpha * 4.0))
let transparentColor = foregroundColor.withAlphaComponent(0.0).cgColor if let shadowImage {
let peakColor = foregroundColor.cgColor UIGraphicsPushContext(context)
var locations: [CGFloat] = [0.0, 0.5, 1.0] for i in 0 ..< 2 {
let colors: [CGColor] = [transparentColor, peakColor, transparentColor] let shadowFrame = CGRect(origin: CGPoint(x: CGFloat(i) * (size.width * 0.5), y: 0.0), size: CGSize(width: size.width * 0.5, height: size.height))
let colorSpace = CGColorSpaceCreateDeviceRGB() context.saveGState()
let gradient = CGGradient(colorsSpace: colorSpace, colors: colors as CFArray, locations: &locations)! context.translateBy(x: shadowFrame.midX, y: shadowFrame.midY)
context.rotate(by: CGFloat(i == 0 ? 1.0 : -1.0) * CGFloat.pi * 0.5)
context.drawLinearGradient(gradient, start: CGPoint(x: 0.0, y: 0.0), end: CGPoint(x: size.width, y: 0.0), options: CGGradientDrawingOptions()) let adjustedRect = CGRect(origin: CGPoint(x: -shadowFrame.height * 0.5, y: -shadowFrame.width * 0.5), size: CGSize(width: shadowFrame.height, height: shadowFrame.width))
context.clip(to: adjustedRect, mask: shadowImage.cgImage!)
context.setFillColor(foregroundColor.cgColor)
context.fill(adjustedRect)
context.restoreGState()
}
UIGraphicsPopContext()
}
}) })
} else { } else {
image = generateImage(CGSize(width: 16.0, height: 320.0), opaque: false, scale: 1.0, rotatedContext: { size, context in image = generateImage(CGSize(width: 16.0, height: 320.0), opaque: false, scale: 1.0, rotatedContext: { size, context in