[绘画]圣斗士星矢,冰河和舜

[绘画]一些练习

 

[绘画]最近的练习,包括对大师作品的临摹和烈火后的龙女觉醒

[绘画]最近画的一些权利游戏的角色

[文章]如何用swift实现自定义页面间的切换动画

先实现页面之间切换的Controller

import UIKit

class CustomAnimationController: NSObject, UIViewControllerAnimatedTransitioning {
    func transitionDuration(transitionContext: UIViewControllerContextTransitioning) -> NSTimeInterval {
        return 0.5
    }

    func animateTransition(transitionContext: UIViewControllerContextTransitioning) {
        let toViewController = transitionContext.viewControllerForKey(UITransitionContextToViewControllerKey)
        let fromViewController = transitionContext.viewControllerForKey(UITransitionContextFromViewControllerKey)
        let finalFrame = transitionContext.finalFrameForViewController(toViewController!)

        let containerView = transitionContext.containerView()

        let screenBounds = UIScreen.mainScreen().bounds
        toViewController?.view.frame = CGRectOffset(finalFrame, 0, screenBounds.size.height)

        let toViewView = toViewController?.view
        containerView.addSubview(toViewView!)

        //动画
        let duration = self.transitionDuration(transitionContext)

        UIView.animateWithDuration(duration, animations: {
            fromViewController?.view.alpha = 0.5
            toViewController?.view.frame = finalFrame
            }, completion: {(Bool finished) in
                fromViewController?.view.alpha = 1.0
                transitionContext.completeTransition(true)
        })

    }
}

在view controller的class里添加delegate

class FirstViewController: UIViewController,UIViewControllerTransitioningDelegate

添加一个属性

var customAnimationController:CustomAnimationController

初始化

required init(coder aDecoder: NSCoder) {
        customAnimationController = CustomAnimationController()
        super.init(coder: aDecoder)
    }

在切换页面前segue里指定delegate为self

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        //
        if segue.identifier == "ShowAuthor" {
            let toVC = segue.destinationViewController as UIViewController
            toVC.transitioningDelegate = self
        }
    }

实现delegate

//MARK: TransitionDelegate
    func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        return customAnimationController
    }