Как увеличить высоту таблицы tableview во время выполнения, когда пользователь вводит некоторый текст в UITextview

Question

im полностью смущает то, что я должен сделать для увеличения высоты ячейки таблицы в режиме исполнения, когда пользователь вводит какой-то текст в UITextview, и я даю ограничение на UItextView, что влево, вправо, нижний и верхний промежутки 5px. что я показываю на своем экране, и я не использую какой-либо пользовательский класс tableviewcell. Я хочу выполнить эту задачу в одном контроллере. я просто использовать XCode 7.3 и мою быструю версию 2,0

@IBOutlet var tedxtviewtableview: UITableView! 
    var record : NSArray = NSArray() 
    var hight: CGFloat = 0.0 
    var newtextstring : NSString = NSString() 

мой статический массив.

record = ["I have a UITextView in a custom UITableViewCell. The textview delegate is assigned in the tableviewcell custom class." ,"Textview scrolling is disabled. Text loads into each textview and is multiline. But the text is always clipped because the cell height doesn't change.","I have the following in viewDidLoad of the tableview controller:"," have a UITextView in a custom UITableViewCell. The textview delegate is assigned in the tableviewcell custom class.","Textview scrolling is disabled. Text loads into each textview and is multiline. But the text is always clipped because the cell height doesn't change.","I have the following in viewDidLoad of the tableview controller:","i just give you one link at put place i use label and you can now use your textview and give same constrain that i give in that link and try it so your problem will be solve","I have the following in viewDidLoad of the tableview controller:"]; 

// tableview delegates method 

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
     return record.count 
} 

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 
     let cell = tableView.dequeueReusableCellWithIdentifier("Textviewcell", forIndexPath: indexPath) 
     let textview: UITextView = (cell.viewWithTag(5) as! UITextView) 
     textview.scrollEnabled = false 
     textview.text = record.objectAtIndex(indexPath.row) as? String 
     Textchange = false 
     return cell 

} 
func textViewDidChange(textView: UITextView , Nsindex : NSIndexPath) { 
     newtextstring = textView.text 
     self.tedxtviewtableview.beginUpdates() 

     // This will cause an animated update of 
     Textchange = true 
     self.tableView(self.tedxtviewtableview, heightForRowAtIndexPath: Nsindex) 
     self.tedxtviewtableview.endUpdates() 

} 

func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat { 
     // 7.1> 
     if Textchange == true { 
      hight = self.findHeightForText(newtextstring as String, havingWidth: self.view.frame.size.width - 10, andFont: UIFont.systemFontOfSize(14.0)).height 
      return 44 + hight 
     }else{ 
      hight = self.findHeightForText(self.record.objectAtIndex(indexPath.row) as! String, havingWidth: self.view.frame.size.width - 10, andFont: UIFont.systemFontOfSize(14.0)).height 
      return 44 + hight 
     } 
    } 

func findHeightForText(text: String, havingWidth widthValue: CGFloat, andFont font: UIFont) -> CGSize { 

    var size = CGSizeZero 
    if text.isEmpty == false { 
    let frame = text.boundingRectWithSize(CGSizeMake(widthValue, CGFloat.max), options: .UsesLineFragmentOrigin, attributes: [NSFontAttributeName: font], context: nil) 
     size = CGSizeMake(frame.size.width, ceil(frame.size.height)) 
    } 
    return size 
    } 

Answer 1

Возьмите переменной

var indexPath1 : NSIndexPath = NSIndexPath() 

Просто измените эту вещь в вашем коде

func textViewDidChange(textView: UITextView){ 

     let textFieldRowCell = (textView.superview!.superview! as! UITableViewCell) 
     indexPath1 = self.tedxtviewtableview.indexPathForCell(textFieldRowCell)! //self.tedxtviewtableview.indexPath(forCell: textFieldRowCell)! 

     newtextstring = textView.text 
     self.tedxtviewtableview.beginUpdates() 

     // This will cause an animated update of 
     //Textchange = true 
     self.tableView(self.tedxtviewtableview, heightForRowAtIndexPath: indexPath1) 
     self.tedxtviewtableview.endUpdates() 

    } 

func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat { 
     // 7.1> 
     if indexPath == indexPath1 { 
       hight = self.findHeightForText(newtextstring as String, havingWidth: self.view.frame.size.width - 10, andFont: UIFont.systemFontOfSize(14.0)).height 
      return 44 + hight 
     }else{ 
      hight = self.findHeightForText(self.record.objectAtIndex(indexPath.row) as! String, havingWidth: self.view.frame.size.width - 10, andFont: UIFont.systemFontOfSize(14.0)).height 
      return 44 + hight 
     } 
    } 

Надеется, что он будет работать

Answer 2

// 
// ViewController.swift 
// CapturePhotoApp 
// 
// Created by CS23 on 09/08/17. 
// Copyright © 2017 cearsinfotech. All rights reserved. 
// 

import UIKit 
import PinterestLayout 
import Stripe 
class ViewController: UIViewController ,UICollectionViewDelegate , UICollectionViewDataSource , PinterestLayoutDelegate , UIGestureRecognizerDelegate{ 

    @IBOutlet var MainView: UIView! 

    @IBOutlet var LightHeaderView: UIView! 
    @IBOutlet var LightHeaderWidth: NSLayoutConstraint! 
    @IBOutlet var lblHeaderTitle: UILabel! 
    var isAppfirst : Bool = false 
    var isscrolling : Bool = true 
    var Isopen : Bool = true 
    var Globaltimer: Timer? 

    @IBOutlet var TutorialView: UIView! 
    var ismoredata : Bool = false 
    var IsFinish = false 
    var pageCount = 1 
    var pageSize = 30 
    var orderType : String = "" 
    var lastcellindex : Int = 1 

    var DownloadiMage : UIImageView = UIImageView() 

    @IBOutlet var GotITWidth: NSLayoutConstraint! 
    @IBOutlet var btnTutorialgotit: UIButton! 
    @IBOutlet var ImageCollectionview: UICollectionView! 
    var arr_img : NSMutableArray = NSMutableArray() 
    var arr_responseObject : NSMutableArray = NSMutableArray() 
    var swipeRight : UISwipeGestureRecognizer? 
    var swipeleft : UISwipeGestureRecognizer? 

    @IBAction func btn_got_it(_ sender: Any) { 
     UserDefaults.standard.set(true, forKey: "isFirstView") 
     UserDefaults.standard.synchronize() 
     TutorialView.isHidden = true 
     self.LightHeaderView.alpha = 1.0 
     UIView.animate(withDuration: 5.0, animations: { 
      self.LightHeaderView.alpha = 0.0 
      self.view.layoutIfNeeded() 

     }) 
    } 
    var manager = AFHTTPSessionManager() 


    //MARK:- view life cycle 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     if let isfirst = UserDefaults.standard.object(forKey: "isFirstView") as? Bool { 
      isAppfirst = isfirst 
      TutorialView.isHidden = true 
      GIFProgressHUD .show(withGIFName: "loader", addedTo: self.view, animated: true) 

     } 
     else{ 
      TutorialView.isHidden = false 
     } 
     btnTutorialgotit.layer.cornerRadius = btnTutorialgotit.frame.size.height/2 
     btnTutorialgotit.clipsToBounds = true 
     LightHeaderView.layer.cornerRadius = LightHeaderView.frame.size.height/2 
     LightHeaderView.clipsToBounds = true 
     LightHeaderView.alpha = 0.0 
     orderType = "New" 
     lblHeaderTitle.text = orderType.uppercased() 
     if UIDevice.current.userInterfaceIdiom == .pad{ 
      ImageCollectionview.scrollPointsPerSecond = 70.0 
      LightHeaderWidth.constant = 300 
      GotITWidth.constant = 286 
     }else{ 
      if UIScreen.main.bounds.width == 375 
      { 
       GotITWidth.constant = 230 
       ImageCollectionview.scrollPointsPerSecond = 70.0 
       LightHeaderWidth.constant = 180 
      } 
      else if UIScreen.main.bounds.width == 414 
      { 
       GotITWidth.constant = 286 
       ImageCollectionview.scrollPointsPerSecond = 90.0 
       LightHeaderWidth.constant = 200 
      } 
      else{ 
       ImageCollectionview.scrollPointsPerSecond = 70.0 
      } 
     } 

     let layout = PinterestLayout() 
     ImageCollectionview.collectionViewLayout = layout 
     layout.delegate = self 
     layout.cellPadding = 3 
     layout.numberOfColumns = 3 

     self.callWebserviceAuthorize(pageindex: pageCount, Pagesize: pageSize) 
     self.ImageCollectionview.addInfiniteScrolling { 

      if !self.IsFinish{ 
       self.pageCount += 1 
       self.callWebserviceAuthorize(pageindex: self.pageCount, Pagesize: self.pageSize) 
      } 

     } 
     //pushProductView 
     NotificationCenter.default.addObserver(self, selector: #selector(ViewController.methodOfReceivedNotification(notification:)), name: Notification.Name("pushProductViewNew"), object: nil) 
     NotificationCenter.default.addObserver(self, selector: #selector(ViewController.openSearchView(notification:)), name: Notification.Name("openSearchView"), object: nil) 
     NotificationCenter.default.addObserver(self, selector: #selector(ViewController.NewDataLoadNotification(notification:)), name: Notification.Name("RemoveGestureNewPhoto"), object: nil) 

     if AppUtilities.sharedInstance.GetBoolForObserver(str: "NewPhoto") != "1"{ 

     } 
     if AppUtilities.sharedInstance.isactivemode{ 
      // here open view image 

      let imageInfo = JTSImageInfo() 
      imageInfo.imageURL = URL(string: (AppUtilities.sharedInstance.ImagePrivewDict.object(forKey: "url") as? String)!) 
      imageInfo.istrading = AppUtilities.sharedInstance.ImagePrivewDict.object(forKey: "Istrading") as! String 
      imageInfo.title = AppUtilities.sharedInstance.ImagePrivewDict.object(forKey: "title") as? String 
      imageInfo.altText = AppUtilities.sharedInstance.ImagePrivewDict.object(forKey: "altText") as? String 
      imageInfo.thumbnail = AppUtilities.sharedInstance.ImagePrivewDict.object(forKey: "Thumbnail") as? String 
      let imageViewer = JTSImageViewController(imageInfo: imageInfo, arry: nil, index: 0, mode: .image, backgroundStyle: .blurred) 
      print(imageInfo) 
      imageViewer?.show(from: self, transition: .center) 
      AppUtilities.sharedInstance.isactivemode = false 

     } 

    } 

    override func viewWillAppear(_ animated: Bool) { 
     super.viewWillAppear(animated) 
     setGestureInCollectionview() 
     AppUtilities.lockOrientation(.all) 
     UIApplication.shared.statusBarStyle = .default 
     if Isopen == false{ 
      self.perform(#selector(self.startTimer), with: nil, afterDelay: 5.0) 
     } 

     if AppUtilities.sharedInstance.appDelegate.is_Landscape != UIDevice.current.orientation.isLandscape{ 
      self.ImageCollectionview.reloadData() 

     } 

     Isopen = true 
    } 



    override func viewWillDisappear(_ animated: Bool) { 
     stopTimer() 
     NSObject.cancelPreviousPerformRequests(withTarget: self, selector: #selector(startTimer), object: nil) 
     Isopen = false 
     //NotificationCenter.default.removeObserver(self, name: Notification.Name("RemoveGestureNewPhoto"), object: nil) 
    } 

    override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) { 
     super.viewWillTransition(to: size, with: coordinator) 
     if Isopen == false{ 
      // stopSamllTimer() 
      self.ImageCollectionview .stopScrolling() 
      self.ImageCollectionview.reloadData() 
      return 
     }else{ 
      // stopSamllTimer() 
      if UIDevice.current.orientation.isLandscape { 
       AppUtilities.sharedInstance.appDelegate.is_Landscape = true 
       print("Landscape") 
       self.ImageCollectionview.reloadData() 

      } else { 
       AppUtilities.sharedInstance.appDelegate.is_Landscape = false 
       print("Portrait") 
       self.ImageCollectionview.reloadData() 
      } 
      self.ImageCollectionview .stopScrolling() 
     } 
    } 

    func NewDataLoadNotification(notification: Notification){ 

     if notification.userInfo != nil{ 
      self.setGestureInCollectionview() 
     }else{ 
      ImageCollectionview.removeGestureRecognizer(swipeRight!) 
      ImageCollectionview.removeGestureRecognizer(swipeleft!) 
     } 

    } 

    func openSearchView(notification: Notification){ 
     self.stopTimer() 

     let dict : NSDictionary = notification.userInfo! as NSDictionary 
     print(dict) 
     if Isswipe == true{ 
      self.dismissPopupViewControllerWithanimationType(MJPopupViewAnimationSlideLeftRight) 
     } 

     let view: ProductShippingViewController = (self.storyboard?.instantiateViewController(withIdentifier: "ProductShippingViewController"))! as! ProductShippingViewController 
     view.newphotoasset = String(format: "%@", dict.value(forKey: "Url") as! NSString) as NSString 
     view.ThumbnailURL = String(format: "%@", dict.value(forKey: "Thumbnail") as! NSURL) as NSString 
     AppUtilities.lockOrientation(.portrait) 
     self.navigationController?.pushViewController(view, animated: true) 


//   let viewController: SearchViewController = (self.storyboard?.instantiateViewController(withIdentifier: "SearchViewController"))! as! SearchViewController 
//    
//   let aObjNavi = UINavigationController(rootViewController: viewController) 
//   aObjNavi.isNavigationBarHidden = true 
//   present(aObjNavi, animated: false, completion: nil) 

//   let viewController: TradingViewController = (self.storyboard?.instantiateViewController(withIdentifier: "TradingViewController"))! as! TradingViewController 
//    
//   let aObjNavi = UINavigationController(rootViewController: viewController) 
//   aObjNavi.isNavigationBarHidden = true 
//   present(aObjNavi, animated: false, completion: nil) 



    } 

    //MARK:- Gesture Methods 

    func setGestureInCollectionview(){ 
     swipeRight = UISwipeGestureRecognizer(target: self, action: #selector(self.SwipeGesture)) 
     swipeRight?.direction = UISwipeGestureRecognizerDirection.right 
     ImageCollectionview.addGestureRecognizer(swipeRight!) 

     swipeleft = UISwipeGestureRecognizer(target: self, action: #selector(self.SwipeGesture)) 
     swipeleft?.direction = UISwipeGestureRecognizerDirection.left 
     ImageCollectionview.addGestureRecognizer(swipeleft!) 
    } 

    func SwipeGesture(_ gesture: UIGestureRecognizer) { 
     self.ImageCollectionview.stopScrolling() 
     self.stopTimer() 
     // self.dismiss(animated: false, completion: nil) 
     if let swipeGesture = gesture as? UISwipeGestureRecognizer { 

      switch swipeGesture.direction { 
      case UISwipeGestureRecognizerDirection.right: 
       print("Swiped right") 
       Isswipe = true 
       let viewController: TradingViewController = (self.storyboard?.instantiateViewController(withIdentifier: "TradingViewController"))! as! TradingViewController 

       let aObjNavi = UINavigationController(rootViewController: viewController) 
       aObjNavi.isNavigationBarHidden = true 

       present(aObjNavi, animated: false, completion: { 

        // AppUtilities.sharedInstance.GiveShadowToMainView(View: viewController.MainView!, offset: CGSize(width: 5.0, height: 5.0)) 
        viewController.MainView.frame = CGRect(x: -viewController.view!.frame.size.width, y: 0, width: viewController.view!.frame.size.width, height: viewController.MainView.frame.size.height) 
        UIView.animate(withDuration: ViewChangeAnimationDuration, delay: 0.0, options: [.curveEaseOut], animations: { 
          viewController.view!.frame.origin = CGPoint(x: 0, y: 0) 
         self.view.layoutIfNeeded() 

        }, completion: { (finished: Bool) in 

         //AppUtilities.sharedInstance.RemoveShadows(View: viewController.MainView!) 
        }) 
       }) 
       // self.presentPopupViewController(aObjNavi, animationType: MJPopupViewAnimationSlideLeftRight) 


      case UISwipeGestureRecognizerDirection.left: 
       print("Swiped left") 
       //Searching 
       Isswipe = true 
       let viewController: SearchViewController = (self.storyboard?.instantiateViewController(withIdentifier: "SearchViewController"))! as! SearchViewController 

       let aObjNavi = UINavigationController(rootViewController: viewController) 
       aObjNavi.isNavigationBarHidden = true 
       present(aObjNavi, animated: false, completion: { 

        // AppUtilities.sharedInstance.GiveShadowToMainView(View: viewController.view!, offset: CGSize(width: -5.0, height: 5.0)) 
        viewController.view!.frame = CGRect(x: viewController.view!.frame.size.width, y: 0, width: viewController.view!.frame.size.width, height: viewController.view!.frame.size.height) 
        UIView.animate(withDuration: ViewChangeAnimationDuration, delay: 0.0, options: [.curveEaseIn], animations: { 
         viewController.view!.frame.origin = CGPoint(x: 0, y: 0) 
         self.view.layoutIfNeeded() 

        }, completion: { (finished: Bool) in 

         // AppUtilities.sharedInstance.RemoveShadows(View: viewController.view!) 
        }) 
       }) 

       //self.presentPopupViewController(aObjNavi, animationType: MJPopupViewAnimationSlideRightLeft) 
      default: 
       break 
      } 
     } 
    } 

    func methodOfReceivedNotification(notification: Notification){ 
     //Take Action on Notification 
     print(notification.userInfo!) 

     if Isswipe == true{ 
      self.dismissPopupViewControllerWithanimationType(MJPopupViewAnimationSlideLeftRight) 
     } 
     let dict : NSDictionary = notification.userInfo! as NSDictionary 
     // let navi : UINavigationController = UINavigationController() 
     let view: ProductShippingViewController = (self.storyboard?.instantiateViewController(withIdentifier: "ProductShippingViewController"))! as! ProductShippingViewController 
     view.newphotoasset = String(format: "%@", dict.value(forKey: "Url") as! NSString) as NSString 
     view.ThumbnailURL = String(format: "%@", dict.value(forKey: "Thumbnail") as! NSURL) as NSString 
     AppUtilities.lockOrientation(.portrait) 
     self.navigationController?.pushViewController(view, animated: true) 
     //navi.pushViewController(view, animated: true) 

    } 

    //MARK:- Scrolling Methods 

    func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) { 
     self.ImageCollectionview .stopScrolling() 
     if !decelerate { 
      print(decelerate) 
      stopTimer() 
      self.perform(#selector(self.startTimer), with: nil, afterDelay: 5.0) 
     }else{ 
      stopTimer() 
     } 
    } 

    func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) { 
     self.ImageCollectionview .stopScrolling() 
     isscrolling = false 
     if isscrolling == false{ 
      self.perform(#selector(self.startTimer), with: nil, afterDelay: 5.0) 
     } 

    } 

    //MARK:- Timer Init and Close 

    func startTimer() { 

     if Globaltimer == nil { 
      Globaltimer = Timer.scheduledTimer(timeInterval: 5.0, target: self, selector: #selector(self.loop), userInfo: nil, repeats: false) 
      print("timer start") 
     } 
    } 

    func stopTimer() { 
     if Globaltimer != nil { 

      Globaltimer?.invalidate() 
      Globaltimer = nil 
      print("timer Stop") 
     } 
    } 

    func loop() { 
     self.ImageCollectionview .startScrolling() 

    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 


    //MARK:- Collectionview method 

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int 
    { 
     if (self.arr_responseObject.count > 0){ 
      return self.arr_responseObject.count 
     }else{ 
      return 0 
     } 

    } 
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell 
    { 
     // get a reference to our storyboard cell 
     let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "PhotoCell",for: indexPath as IndexPath) 
     let dict : NSDictionary = self.arr_responseObject[indexPath.row] as! NSDictionary 
     let img_view = cell.viewWithTag(20) as! UIImageView 
     img_view.contentMode = .scaleAspectFit 
     img_view.downloadImageFrom((dict["urls"] as! NSDictionary)["small"] as! String, contentMode: .scaleAspectFit) 

     return cell 
    } 

    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) 
    { 
     let dict : NSDictionary = self.arr_responseObject[indexPath.row] as! NSDictionary 
     let arrSend : NSMutableArray = NSMutableArray() 
     for index in 0..<self.arr_responseObject.count{ 
      let dictTemp : NSDictionary = self.arr_responseObject[index] as! NSDictionary 
      let imageInfo = JTSImageInfo() 
      imageInfo.istrading = "0" 
      imageInfo.imageURL = URL(string: ((dictTemp.value(forKeyPath: "urls") as! NSDictionary).value(forKeyPath: "regular") as! NSString) as String) 
      imageInfo.title = ((dictTemp.value(forKeyPath: "user") as! NSDictionary).value(forKey: "name") as! NSString) as String! 
      imageInfo.thumbnail = ((dictTemp.value(forKeyPath: "urls") as! NSDictionary).value(forKeyPath: "thumb") as! NSString) as String! 
      imageInfo.altText = ((dictTemp.value(forKeyPath: "user") as! NSDictionary).value(forKey: "links") as! NSDictionary).value(forKeyPath: "html") as! String! 
      arrSend.add(imageInfo) 

     } 
     let imageInfo = JTSImageInfo() 
     AppUtilities.sharedInstance.SetBoolForObserver(str: "NewPhoto", value: "1") 
     let previewurl = ((dict.value(forKeyPath: "urls") as! NSDictionary).value(forKeyPath: "full") as! NSString) as String 

     print(previewurl) 
     let newpreview = previewurl.replacingOccurrences(of: "q=85", with: "q=60&w=1000&h=1000") 
     print(newpreview) 
     imageInfo.imageURL = URL(string: newpreview) 
     imageInfo.title = ((dict.value(forKeyPath: "user") as! NSDictionary).value(forKey: "name") as! NSString) as String! 
     imageInfo.thumbnail = ((dict.value(forKeyPath: "urls") as! NSDictionary).value(forKeyPath: "full") as! NSString) as String! 
     imageInfo.altText = ((dict.value(forKeyPath: "user") as! NSDictionary).value(forKey: "links") as! NSDictionary).value(forKeyPath: "html") as! String! 
     imageInfo.istrading = "0" 
     let photoid = indexPath.row 
     let imageViewer = JTSImageViewController(imageInfo: imageInfo, arry: arrSend, index: photoid, mode: .image, backgroundStyle: .blurred) 
     imageViewer?.show(from: self, transition: .center) 
     //NotificationCenter.default.post(name: NSNotification.Name("RemoveGestureNewPhoto"), object: nil, userInfo: nil) 
    } 
    func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) { 
     lastcellindex = indexPath.row 
     if Globaltimer != nil{ 
      self.ImageCollectionview .startScrolling() 
     } 
     if self.lastcellindex == self.arr_responseObject.count - 1{ 
      self.ImageCollectionview.triggerInfiniteScrolling() 

     } 
    } 

    func collectionView(collectionView: UICollectionView, 
         heightForImageAtIndexPath indexPath: IndexPath, 
         withWidth: CGFloat) -> CGFloat { 

     let dict : NSDictionary = self.arr_responseObject[indexPath.row] as! NSDictionary 
     let actualWidth = dict["width"] as? Int ?? 1 
     let actualHeight = dict["height"] as? Int ?? 1 
     let actualRatio : Float = Float(actualWidth)/Float(actualHeight) 
     let framesize : Float = Float(collectionView.frame.size.width - 10)/Float(3) 

     return CGFloat(framesize/actualRatio) 
    } 

    func collectionView(collectionView: UICollectionView, 
         heightForAnnotationAtIndexPath indexPath: IndexPath, 
         withWidth: CGFloat) -> CGFloat { 

     return 0 
    } 
    //MARK:- WebService Call 
    func callWebserviceAuthorize(pageindex : Int , Pagesize : Int){ 

     if AppUtilities.sharedInstance.isNetworkRechable(){ 
      IsFinish = true 
      let url = "https://api.unsplash.com/photos/?page=\(pageindex)&per_page=\(Pagesize)&order_by=new&client_id=\(APP_ID)" 


      print(url) 

      manager.responseSerializer = AFHTTPResponseSerializer() 
      manager.get(
       url, 
       parameters: nil, 
       success: 
       { 
        (operation, responseObject) in 
        let json = try? JSONSerialization.jsonObject(with: responseObject as! Data, options: []) 

        if let arr : NSArray = json as? NSArray 
        { 
         if self.pageCount == 1 
         { 
          self.LightHeaderView.alpha = 1.0 
          UIView.animate(withDuration: 5.0, animations: { 
           self.LightHeaderView.alpha = 0.0 
           self.view.layoutIfNeeded() 

          }) 

          self.ImageCollectionview.stopScrolling() 
          self.arr_responseObject.removeAllObjects() 
         }else{ 

         } 
         self.arr_responseObject.addObjects(from: NSMutableArray(array: arr) as! [Any]) 
         print(self.arr_responseObject.value(forKeyPath: "urls") as? NSArray) 
         self.IsFinish = false 
         self.ImageCollectionview.infiniteScrollingView.stopAnimating() 
         self.ImageCollectionview.reloadData() 
         if self.pageCount == 1 
         { 
          if self.isAppfirst != false{ 
           self.perform(#selector(self.startTimer), with: nil, afterDelay: 0.3) 
          } 
         } 
        } 
        GIFProgressHUD .hide(for: self.view, animated: true) 
      }, 
       failure: 
       { 
        (operation, error) in 

        print("Error: " + (error?.localizedDescription)!) 
        self.IsFinish = false 
        AppUtilities.sharedInstance.showAlert(title: "Error", msg: (error?.localizedDescription)! as NSString) 
        self.callWebserviceAuthorize(pageindex: self.pageCount, Pagesize: self.pageSize) 
        self.stopTimer() 

      }) 

     }else{ 
      AppUtilities.sharedInstance.showAlert(title: "No Internet", msg: "No Internet Connection . please check your Internet.") 
     } 
    } 
}