Kann Bilder zu iCarousel von der Weburl

Question

nicht zeigen Ich möchte einige Bilder von einer Web site auf iCarousel DiaShow zeigen.

Ich bekomme leere Diashow von iCarousel.

Ich bin Anfänger und versucht, viele Codes zufällig auf meine App aber unter Hinweis darauf,

hier passiert ist, ist meine komplette Code:

import UIKit 

class ViewController: UIViewController , iCarouselDataSource, iCarouselDelegate { 

    @IBOutlet weak var imageView: UIImageView! 

    @IBOutlet weak var allimages: UIImageView! 

    internal var urll:NSURL! 

    @IBOutlet weak var carouselView: iCarousel! 

    var numbers = [Int]() 
    var urls = [String]() 


    func carousel(carousel: iCarousel, viewForItemAtIndex index: Int, reusingView view: UIView?) -> UIView { 
     let tempView = UIView(frame: CGRect(x: 0, y: 0, width: 300, height: 200)) 

     let images = UIButton(frame: CGRect(x: 0, y: 0, width: 300, height: 200)) 
     images.backgroundColor = UIColor.blueColor() 
     images.backgroundImageForState(.Normal) 
     images.backgroundRectForBounds(CGRect(x: 0, y: 0, width: 300, height: 200)) 
     tempView.addSubview(images) 

     let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 200, height: 200)) 
     imageView.backgroundColor = UIColor.orangeColor() 


     for item in self.urls { 
      print (item) 

      let s = item 
      let url = NSURL(string: s) 
      let session = NSURLSession.sharedSession() 
      let task = session.downloadTaskWithURL(url!) 
      { 
       (url: NSURL?, res: NSURLResponse?, e: NSError?) in 
       let d = NSData(contentsOfURL: url!) 
       let image = UIImage(data: d!) 

       dispatch_async(dispatch_get_main_queue()) { 
        imageView.image = image 
       } 
      } 
      task.resume() 
     } 

    return images 

    } 




    func carousel(carousel: iCarousel, valueForOption option: iCarouselOption, withDefault value: CGFloat) -> CGFloat { 
     if option == iCarouselOption.Spacing { 
      return value * 1.1 
     } 
     return value 
    } 

    override func awakeFromNib() { 
     super.awakeFromNib() 
     numbers = [1,2,3,4] 
    } 

    func numberOfItemsInCarousel(carousel: iCarousel) -> Int { 
     return numbers.count 
    } 

    //============================================================== 
    override func viewDidLoad() { 






     carouselView.type = .Rotary 
     carouselView.autoscroll = 0.4 
//  let defaults = NSUserDefaults.standardUserDefaults() 



     urll = NSURL(string: "http://xxxxxxxxx.com/api/?slider=uij6sdnb") 

     let session = NSURLSession.sharedSession() 
     let task = session.dataTaskWithURL(urll) {(NSData, response, error) -> Void in 
      do { 
       let records = try NSJSONSerialization.JSONObjectWithData(NSData!, options: NSJSONReadingOptions.MutableContainers) as! NSArray 


       for record in records { 
        let urlid = Int(record["slide_id"] as! String) 
        let urimage = record["slide_url"] as! String 


      print(urlid) 
        print(urimage) 
        self.urls = [urimage] 
//     print(self.urls.count) 
           } 
      } 
      catch { 
       print("Json Error") 

      } 
     } 


     task.resume() 

Jede mögliche Hilfe geschätzt wird.

Answer 1

Hier ist mein vollständiger Code.

Aber wie Sie es für 4 Bild sehen.

Für mehr oder weniger Bilder können Sie die Änderungen einfach anwenden.

Ich habe das iCrousel von Jared Davinson Youtube Channel hinzugefügt.

Genießen.

// 
// ViewController.swift 
// parniapharmed 
// 
// Created by Alfredo Uzumaki on 2016 AP. 
// Copyright © 2016 AP Alfredo Uzumaki. All rights reserved. 
// 

import UIKit 
import SystemConfiguration // for checking internet connection 


class ViewController: UIViewController { // if you had any problem. command this line and uncommand the below line ! 

// class ViewController: UIViewController , iCarouselDataSource, iCarouselDelegate { 



@IBOutlet weak var allimages: UIImageView! 

internal var urll:NSURL! 

@IBOutlet weak var carouselView: iCarousel! 

@IBOutlet weak var img1: UIImageView! 
@IBOutlet weak var img2: UIImageView! 
@IBOutlet weak var img3: UIImageView! 
@IBOutlet weak var img4: UIImageView! 

@IBOutlet weak var allimagetop: UIView! 

internal var imageNinja:String = "" 

internal var hasInternet:Bool! // for checking internet connection 

var numbers = [Int]() 
var urls = [String]() 

internal var urimage = [String]() 

internal var image1:String = "" 
internal var image2:String = "" 
internal var image3:String = "" 
internal var image4:String = "" 

internal var imageArray: [UIImage] = [] 


func carousel(carousel: iCarousel, viewForItemAtIndex index: Int, reusingView view: UIView?) -> UIView { 

    var tempView = UIView(frame: CGRect(x: 0, y: 0, width: 300, height: 200)) 

    let images = UIButton(frame: CGRect(x: 0, y: 0, width: 300, height: 200)) 

    images.backgroundColor = UIColor.blueColor() 
    images.backgroundImageForState(.Normal) 
    images.backgroundRectForBounds(CGRect(x: 0, y: 0, width: 300, height: 200)) 

    tempView.addSubview(images) 

    let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 400, height: 200)) 
    imageView.image = UIImage(named: "loading") 

    if (imageNinja != "") && (imageArray.count == 4) { // Checking if images fully loaded you can Delete Seccond Condition if it Coused any Error 

    imageView.backgroundColor = UIColor.orangeColor() 
    imageView.image = imageArray[index] 
    tempView.addSubview(imageView) 
    } 
    return imageView 
} 


func carousel(carousel: iCarousel, valueForOption option: iCarouselOption, withDefault value: CGFloat) -> CGFloat { 
    if option == iCarouselOption.Spacing { 
     return value * 1.1 
    } 
    return value 
} 

override func awakeFromNib() { 
    super.awakeFromNib() 
    numbers = [1,2,3,4] // i wrote it manualy but you can change it to: numbers = imageArray.count or write the th numbers of your images. 
} 

func numberOfItemsInCarousel(carousel: iCarousel) -> Int { 
    return numbers.count 
} 





//===========================Begin of View Did Load=================================== 


override func viewDidLoad() { 

    carouselView.type = .Rotary 
    carouselView.autoscroll = 0.1 

    hasInternet = connectedToNetwork() //checking internet again ! 
    print(hasInternet) // if true then internet is ok 

    if hasInternet == true { 
    urll = NSURL(string: "http://yourwebsite.com/api/?slider=uij6sdnb") // <== put your php address here !! 
    let session = NSURLSession.sharedSession() 
    let task = session.dataTaskWithURL(urll) {(data, response, error) -> Void in 
     do { 
      let records = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as! NSArray 
      for record in records { 
       //slide_url is the subject of database row from php... change it to yours 
       let urimage = record["slide_url"] as! String 
       self.urls.append(urimage) 
      } 
      print(self.urls[2]) 
      self.image1 = self.urls[0] 
      self.image2 = self.urls[1] 
      self.image3 = self.urls[2] 
      self.image4 = self.urls[3] 
     } 
     catch { 
      print("Json Error") 
     } 

     while self.imageNinja == "" { 
      self.image1 = self.urls[0] 
      self.image2 = self.urls[1] 
      self.image3 = self.urls[2] 
      self.image4 = self.urls[3] 
      print("4th image downloaded") 
      print(self.image4) 

      //----------------------------------- downoad image ----------------------------------------- 
      let url = NSURL(string: self.image1) 
      dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) { 
       let data = NSData(contentsOfURL: url!) //make sure your image in this url does exist, otherwise unwrap in a if let check 
       dispatch_async(dispatch_get_main_queue(), { 
        let image = UIImage(data: data!) 
        self.imageArray.append(image!) 
       }); 
      } 
      //----------------------------------- downoad image ----------------------------------------- 
      //----------------------------------- downoad image ----------------------------------------- 
      let url2 = NSURL(string: self.image2) 
      dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) { 
       let data = NSData(contentsOfURL: url2!) //make sure your image in this url does exist, otherwise unwrap in a if let check 
       dispatch_async(dispatch_get_main_queue(), { 
        let image = UIImage(data: data!) 
        self.imageArray.append(image!) 
       }); 
      } 
      //----------------------------------- downoad image ----------------------------------------- 
      //----------------------------------- downoad image ----------------------------------------- 
      let url3 = NSURL(string: self.image3) 
      dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) { 
       let data = NSData(contentsOfURL: url3!) //make sure your image in this url does exist, otherwise unwrap in a if let check 
       dispatch_async(dispatch_get_main_queue(), { 
        let image = UIImage(data: data!) 
        self.imageArray.append(image!) 
       }); 
      } 
      //----------------------------------- downoad image ----------------------------------------- 
      //----------------------------------- downoad image ----------------------------------------- 
      let url4 = NSURL(string: self.image4) 
      dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) { 
       let data = NSData(contentsOfURL: url4!) //make sure your image in this url does exist, otherwise unwrap in a if let check 
       dispatch_async(dispatch_get_main_queue(), { 
        let image = UIImage(data: data!) 
        self.imageArray.append(image!) 



        print("imageArray Count is is :") 
        print(self.imageArray.count) 
        self.carouselView.reloadData() //this one is do nothing! i put it for luck! 
       }); 
      } 
      //----------------------------------- downoad image ----------------------------------------- 

      self.imageNinja = "hhh" 

     } 

    } 

    task.resume() 

    } 


    // ================================= end of view did load 

} 

// checking internet connection 
func connectedToNetwork() -> Bool { 
    var zeroAddress = sockaddr_in() 
    zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress)) 
    zeroAddress.sin_family = sa_family_t(AF_INET) 
    guard let defaultRouteReachability = withUnsafePointer(&zeroAddress, { 
     SCNetworkReachabilityCreateWithAddress(nil, UnsafePointer($0)) 
    }) else { 
     return false 
    } 
    var flags : SCNetworkReachabilityFlags = [] 

    if SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) == false { 
     return false 
    } 
    let isReachable = flags.contains(.Reachable) 
    let needsConnection = flags.contains(.ConnectionRequired) 
    return (isReachable && !needsConnection) 
} 

}