phucnm

Run this command:
```ffmpeg -i input.mp4 out%d.png```

If you want more options, check this ref: https://trac.ffmpeg.org/wiki/Create%20a%20thumbnail%20image%20every%20X%20seconds%20of%20the%20video

phucnm

//
//  RoundCornerProgressView.swift
//  PhucNguyen
//
//  Created by Phuc Nguyen on 8/18/16.
//  Copyright © 2016 Phuc Nguyen. All rights reserved.
//

import UIKit

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import Foundation
import UIKit

extension String {
    
    var html2AttributedString: NSAttributedString? {
        guard
            let data = dataUsingEncoding(NSUTF8StringEncoding)
            else { return nil }
        do {

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//  Created by Phuc Nguyen on 7/15/16.
//  Copyright © 2016 Phuc Nguyen. All rights reserved.
//

import Foundation

class ReorderTableView: UITableView {
    
    var isReorderEnabled = true
    var customView:UIImageView?

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//Implement your willDisplayCell delegate function like that
//Behind the scene
//It will hide default reorder control image (three horizontal lines)
//but the table view cell can still receive drag action to reorder rows

//You still need to set `tableView.editing = true`
//and `tableView(tableView: UITableView, canMoveRowAtIndexPath indexPath: NSIndexPath) -> Bool` to return `true`
//Finally, implement `tableView(tableView: UITableView, moveRowAtIndexPath sourceIndexPath: NSIndexPath, toIndexPath destinationIndexPath: NSIndexPath)`
//to handle your data changes

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extension UIImage {
    /**
     Create gradient image from beginColor on top and end color at bottom
     
     - parameter beginColor: beginColor
     - parameter endColor:   endColor
     - parameter frame:      frame to be filled
     
     - returns: filled image
     */

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    /**
     Snippet to make navigation bar transparent alpha = 0
     */
    func makesNavigationBarTransparent() {
        navigationController?.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: .Default)
        navigationController?.navigationBar.shadowImage = UIImage()
        navigationController?.navigationBar.translucent = true
        navigationController?.navigationBar.backgroundColor = UIColor.clearColor()
    }

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self.definesPresentationContext = YES;
presentedController.view.backgroundColor = [YOUR_COLOR with alpha OR clearColor]
presentedController.modalPresentationStyle = UIModalPresentationOverCurrentContext;
[self presentViewController:presentedController animated:YES completion:nil];

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    // Scrollview.tag will equal to your collection view's tag
    // Use page to update page control or whatever
    func scrollViewDidEndDecelerating(scrollView: UIScrollView) {
        print("tag = \(scrollView.tag)")
        let pageWidth = scrollView.frame.size.width
        let page = Int(floor((scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1)
        print("page = \(page)")
    }

phucnm

Store section header in an array and change their value :)

Ooops, I think dictionary is better hehe