fix bug

杨锴

2025-04-16 09a372bc45fde16fd42257ab6f78b8deeecf720b

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//
//  LanternFadeAnimator.swift
//  Lantern
//
//  Created by JiongXing on 2019/11/25.
//  Copyright © 2021 Shenzhen Hive Box Technology Co.,Ltd All rights reserved.
//
 
import UIKit
 
open class LanternFadeAnimator: NSObject, LanternAnimatedTransitioning {
    
    open var showDuration: TimeInterval = 0.25
    
    open var dismissDuration: TimeInterval = 0.25
    
    open var isNavigationAnimation: Bool = false
 
    public func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
        return isForShow ? showDuration : dismissDuration
    }
    
    public func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
        guard let browser = lantern else {
            transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
            return
        }
        if isNavigationAnimation, isForShow,
            let fromView = transitionContext.view(forKey: .from),
            let fromViewSnapshot = snapshot(with: fromView),
            let toView = transitionContext.view(forKey: .to)  {
            toView.insertSubview(fromViewSnapshot, at: 0)
        }
        if isForShow {
            browser.maskView.alpha = 0
            browser.browserView.alpha = 0
            if let toView = transitionContext.view(forKey: .to) {
                transitionContext.containerView.addSubview(toView)
            }
        } else {
            if isNavigationAnimation,
                let fromView = transitionContext.view(forKey: .from),
                let toView = transitionContext.view(forKey: .to) {
                transitionContext.containerView.insertSubview(toView, belowSubview: fromView)
            }
        }
        browser.browserView.isHidden = true
        UIView.animate(withDuration: transitionDuration(using: transitionContext), animations: {
            browser.browserView.isHidden = false
            browser.maskView.alpha = self.isForShow ? 1.0 : 0
            browser.browserView.alpha = self.isForShow ? 1.0 : 0
        }) { _ in
            transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
        }
    }
}