Swift-粉碎动画效果

Swift-粉碎动画效果.gif

先上一张GIF图片

。。。图片是不是有点儿大呢？

不要在意这些细节啦，上教学。

还是老套路，首先将我Demo中的Smash文件夹拖入你的工程中，然后就可以调用了。

//
//  ViewController.swift
//  Swift-粉碎动画效果
//
//  Created by ibokan on 16/7/22.
//  Copyright © 2016年 张宇. All rights reserved.
//

import UIKit

class ViewController: UIViewController {
    
    @IBOutlet var img1: UIImageView!
    @IBOutlet var img2: UIImageView!
    @IBOutlet var img3: UIImageView!
    @IBOutlet var img4: UIImageView!
    @IBOutlet var img5: UIImageView!

    /*点我粉碎按钮*/
    @IBAction func button(sender: UIButton) {
        
        delay(0, task: {self.img1.boom()})
        delay(1, task: {self.img2.boom()})
        delay(2, task: {self.img3.boom()})
        delay(3, task: {self.img4.boom()})
        delay(4, task: {self.img5.boom()})
    }
    
    /*点我重置按钮*/
    @IBAction func button2(sender: UIButton) {
        img1.reset()
        img2.reset()
        img3.reset()
        img4.reset()
        img5.reset()
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    typealias Task = (cancel : Bool) -> ()
    
    func delay(time:NSTimeInterval, task:()->()) ->  Task? {
        
        func dispatch_later(block:()->()) {
            dispatch_after(
                dispatch_time(
                    DISPATCH_TIME_NOW,
                    Int64(time * Double(NSEC_PER_SEC))),
                dispatch_get_main_queue(),
                block)
        }
        
        var closure: dispatch_block_t? = task
        var result: Task?
        
        let delayedClosure: Task = {
            cancel in
            if let internalClosure = closure {
                if (cancel == false) {
                    dispatch_async(dispatch_get_main_queue(), internalClosure);
                }
            }
            closure = nil
            result = nil
        }
        
        result = delayedClosure
        
        dispatch_later {
            if let delayedClosure = result {
                delayedClosure(cancel: false)
            }
        }
        
        return result;
    }
    
    func cancel(task:Task?) {
        task?(cancel: true)
    }

}

是不是很简单！
Demo地址https://pan.baidu.com/s/1c7NiH4