演示代码：DemoViewController：
import UIKit
class DemoViewController: ExpandingViewController {
typealias ItemInfo = (imageName: String, title: String)
private var cellsIsOpen = [Bool]()
private let items: [ItemInfo] = [("item0", "Boston"),("item1", "New York"),("item2", "San Francisco"),("item3", "Washington")]
@IBOutlet weak var pageLabel: UILabel!
}
// MARK: life cicle
extension DemoViewController {
override func viewDidLoad() {
super.viewDidLoad()
registerCell()
fillCellIsOpeenArry()
addGestureToView(collectionView!)
configureNavBar()
}
}
// MARK: Helpers
extension DemoViewController {
private func registerCell() {
let nib = UINib(nibName: String(DemoCollectionViewCell), bundle: nil)
collectionView?.registerNib(nib, forCellWithReuseIdentifier: String(DemoCollectionViewCell))
}
private func fillCellIsOpeenArry() {
for _ in items {
cellsIsOpen.append(false)
private func getViewController() -> ExpandingTableViewController {
let storyboard = UIStoryboard(storyboard: .Main)
let toViewController: DemoTableViewController = storyboard.instantiateViewController()
return toViewController
}
}
private func configureNavBar() {
navigationItem.leftBarButtonItem?.image = navigationItem.leftBarButtonItem?.image!.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
}
}
/// MARK: Gesture
extension DemoViewController {
private func addGestureToView(toView: UIView) {
let gesutereUp = Init(UISwipeGestureRecognizer(target: self, action: #selector(DemoViewController.swipeHandler(_:)))) {
$0.direction = .Up
}
let gesutereDown = Init(UISwipeGestureRecognizer(target: self, action: #selector(DemoViewController.swipeHandler(_:)))) {
$0.direction = .Down
}
toView.addGestureRecognizer(gesutereUp)
toView.addGestureRecognizer(gesutereDown)
}
func swipeHandler(sender: UISwipeGestureRecognizer) {
let indexPath = NSIndexPath(forRow: currentIndex, inSection: 0)
guard let cell = collectionView?.cellForItemAtIndexPath(indexPath) as? DemoCollectionViewCell else { return }
// double swipe Up transition
if cell.isOpened == true && sender.direction == .Up {
pushToViewController(getViewController())
if let rightButton = navigationItem.rightBarButtonItem as? AnimatingBarButton {
rightButton.animationSelected(true)
}
}
let open = sender.direction == .Up ? true : false
cell.cellIsOpen(open)
cellsIsOpen[indexPath.row] = cell.isOpened
}
}
// MARK: UIScrollViewDelegate
extension DemoViewController {
func scrollViewDidScroll(scrollView: UIScrollView) {
pageLabel.text = "\(currentIndex+1)/\(items.count)"
}
}
// MARK: UICollectionViewDataSource
extension DemoViewController {
func collectionView(collectionView: UICollectionView, willDisplayCell cell: UICollectionViewCell, forItemAtIndexPath indexPath: NSIndexPath) {
guard let cell = cell as? DemoCollectionViewCell else { return }
let index = indexPath.row % 4
let info = items[index]
cell.backgroundImageView?.image = UIImage(named: info.imageName)
cell.customTitle.text = info.title
cell.cellIsOpen(cellsIsOpen[indexPath.row], animated: false)
}
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
guard let cell = collectionView.cellForItemAtIndexPath(indexPath) as? DemoCollectionViewCell
where currentIndex == indexPath.row else { return }
if cell.isOpened == false {
cell.cellIsOpen(true)
} else {
pushToViewController(getViewController())
if let rightButton = navigationItem.rightBarButtonItem as? AnimatingBarButton {
rightButton.animationSelected(true)
}
}
}
}
// MARK: UICollectionViewDataSource
extension DemoViewController {
override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return items.count
}
override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
return collectionView.dequeueReusableCellWithReuseIdentifier(String(DemoCollectionViewCell), forIndexPath: indexPath)
}
}
我的代码：CollectionViewController：
import UIKit
import Alamofire
import SwiftyJSON
import ExpandingCollection
public
class CellViewController: ExpandingViewController, NSURLConnectionDelegate
{
private var cellsIsOpen = [Bool]()
typealias ItemInfo = UIImage
private var items: [ItemInfo] = []
override public func viewDidLoad() {
itemSize = CGSize(width: 256, height: 335)
super.viewDidLoad()
//let cell: CollectViewCell!
// print(items.count)
refcell()
fillCell()
addGestureToView(collectionView!)
configureNavBar()
// Do any additional setup after loading the view.
}
override public func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func Go(sender: UIButton) {
loadimages("http://www.getmyadvisor.com/solr/getmyadvisor/select?q=mode:(%22Lawyer%22,%20%22CA%22)%20AND%20active:true%20AND%20city:(%22Bangalore%22)%20AND%20locality:(%22Rajaji Nagar%22)%20AND%20caseTypes:(%22Family Dispute%22)&wt=json", completionHandler: {
data in
if data.error == nil{
self.items += data.images!
self.collectionView?.reloadData()
}
})
}
public func loadimages(url: String, completionHandler: (error: NSError?, allImagesString: [JSON]?, images: [UIImage]? ) -> ()) -> (){
let unsafe = url
var data1 = [ItemInfo]()
let bingo = NSURL(string: unsafe.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.whitespaceCharacterSet().invertedSet)!)
Alamofire.request(.GET, bingo!)
.validate()
.responseJSON{ response in
switch response.result{
case .Success:
let json33 = JSON(data: response.data!)
//print(json33)
let allImageStrings = json33["response"]["docs"].flatMap { $0.1["imageData"].first?.1}
for Bro in allImageStrings{
let url = NSURL(string: Bro.string!)
let data = NSData(contentsOfURL: url!)!
let image = UIImage(data: data)
data1.append(image!)
}
completionHandler(error: nil, allImagesString: allImageStrings , images: data1)
self.items = data1
//self.collectionView?.reloadData()
case .Failure(let error):
print(error)
completionHandler(error: error, allImagesString: nil, images: nil)
}
}
}
func refcell(){
let bin = UINib(nibName: "CollectViewCell", bundle: nil)
self.collectionView?.registerNib(bin, forCellWithReuseIdentifier: String(CollectViewCell))
}
func fillCell(){
for _ in items{
cellsIsOpen.append(false)
// self.collectionView!.reloadData()
print(cellsIsOpen.count)
}
}
func getViewController() -> ExpandingTableViewController{
let storyboard = UIStoryboard(storyboard: .Main)
let toViewController: TableViewController1 = storyboard.instantiateViewController()
return toViewController
}
func configureNavBar() {
navigationItem.leftBarButtonItem?.image = navigationItem.leftBarButtonItem?.image!.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
}
//MARK: Gesture
func addGestureToView(toView: UIView) {
let gesutereUp = Init(UISwipeGestureRecognizer(target: self, action: #selector(CellViewController.swipeHandler(_:)))) {
$0.direction = .Up
}
let gesutereDown = Init(UISwipeGestureRecognizer(target: self, action: #selector(CellViewController.swipeHandler(_:)))) {
$0.direction = .Down
}
toView.addGestureRecognizer(gesutereUp)
toView.addGestureRecognizer(gesutereDown)
}
func swipeHandler(sender: UISwipeGestureRecognizer) {
let indexPath = NSIndexPath(forRow: currentIndex, inSection: 0)
guard let cell = collectionView?.cellForItemAtIndexPath(indexPath) as? CollectViewCell else { return }
// double swipe Up transition
if cell.isOpened == true && sender.direction == .Up {
pushToViewController(getViewController())
if let rightButton = navigationItem.rightBarButtonItem as? AnimatingBarButton {
rightButton.animationSelected(true)
}
}
else{
let open = sender.direction == .Up ? true : false
cell.cellIsOpen(open)
cellsIsOpen[indexPath.row] = cell.isOpened
//cellsIsOpen.append(cell.isOpened)
}
}
func collectionView(collectionView: UICollectionView, willDisplayCell cell: UICollectionViewCell, forItemAtIndexPath indexPath: NSIndexPath) {
guard let cell = cell as? CollectViewCell else { return }
let index = indexPath.row % 4
//let info = items
cell.backgroundImageView.image = items[index]
//cell.customTitle.text = info.title
print(cellsIsOpen.count)
//cellsIsOpen.append(cell.isOpened)
cell.cellIsOpen(cellsIsOpen[indexPath.row], animated: false)
}
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
guard let cell = collectionView.cellForItemAtIndexPath(indexPath) as? CollectViewCell
where currentIndex == indexPath.row else { return }
if cell.isOpened == false {
cell.cellIsOpen(true)
} else {
pushToViewController(getViewController())
if let rightButton = navigationItem.rightBarButtonItem as? AnimatingBarButton {
rightButton.animationSelected(true)
}
}
}
override public func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return self.items.count
}
override public func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
//let cell = collectionView.cellForItemAtIndexPath(indexPath) as? CollectViewCell
return collectionView.dequeueReusableCellWithReuseIdentifier(String(CollectViewCell), forIndexPath: indexPath)
}
}
我的JSON（如果需要检查我是否已正确解析）：
{
"response" : {
"start" : 0,
"docs" : [
{
"enrollmentId" : [
"2534534246"
],
"fieldName2" : [
"Languages"
],
"locality" : [
"XYZ"
],
"active" : [
true
],
"sex" : [
"Male"
],
"latitude" : [
1.2340
],
"city" : [
"udya"
],
"imageData" : [
"data:image\/png;base64,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"
],
"fieldValue2" : [
"English, Hindi, Kannada"
],
"fieldValue1" : [
"11 years"
],
"state" : [
"Karnataka"
],
"id" : "Iuusofijpw",
"email" : [
"cont@dontcare.com"
],
"longitude" : [
12.4352
],
"firstName" : [
"Praqwer"
],
"_version_" : 1521637513434759168,
"experience" : [
10
],
"caseTypes" : [
"A Particular caseType let's say Bheema",
],
"lastName" : [
"Bsdtty"
],
"mode" : [
"Lawyer"
],
"fieldName1" : [
"Experience"
]
},
{
"state" : [
"Karnataka"
],
"languages" : [
"English",
"Hindi",
"Kannada"
],
"lastName" : [
"KWE"
],
"firstName" : [
"RANDARTY"
],
"sex" : [
"Male"
],
"caseTypes" : [
"Bheema",
],
"enrollmentId" : [
"4253646"
],
"mobile" : [
42534346
],
"id" : "Iurweoin",
"imageData" : [
"data:image\/png;base64,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"
],
"active" : [
true
],
"mode" : [
"Kelsa"
],
"city" : [
"Udya"
],
"_version_" : 15216,
"email" : [
"Him@somenone.com"
],
"experience" : [
18223
],
"locality" : [
"XYZ"
]
}
],
"numFound" : 2
},
"responseHeader" : {
"status" : 0,
"QTime" : 5,
"params" : {
"q" : "mode:(\"Lawyer\", \"CA\") AND active:true AND city:(\"Bereello\") AND locality:(\"XYZ\") AND caseTypes:(\"Momerty\")",
"wt" : "json"
}
}
}
在Mycode我在第cell.cellIsOpen(cellsIsOpen[indexPath.row], animated: false)行收到错误。但是在DemoCode中，它运行正常。我做错了什么？请帮忙。