import UIKit
import Alamofire
protocol VideoModelDelegate{
func dataReady()
}
class VideoModel: NSObject {
let API_KEY = ""
let UPLOADS_PLAYLIST_ID = ""
var videoArray = [Video]()
var delegate:VideoModelDelegate?
func getFeedVideos() -> [Video] {
Alamofire.request(.GET, "",parameters: ["part":"snippet", "playlistId":UPLOADS_PLAYLIST_ID ,"key":API_KEY],
encoding: ParameterEncoding.URL, headers: nil).responseJSON {(response) -> Void in
if let JSON = response.result.value{
var arrayOfVideos = [Video]()
for video in JSON["items"] as! NSArray {
print(video)
let videoObj = Video()
videoObj.videoId = video.valueForKeyPath("snippet,resourceId, videoId")
String
videoObj.videoTitle = video.valueForKeyPath("snippet.title") as! String
videoObj.videoDescription = video.valueForKeyPath("snippet.description") as!
String
videoObj.videoThumbnailUrl = video.valueForKeyPath("snippet.thumbnails.maxres.url") as! String
arrayOfVideos.append(videoObj)
}
self.videoArray = arrayOfVideos
if self.delegate != nil {
self.delegate!.dataReady()
}
}
}
}
func getVideos() -> [Video] {
var videos = [Video]()
let video1 = Video()
video1.videoId = ""
video1.videoTitle = ""
videos.append(video1)
return videos
}
}
[其他错误] [错误] 1如何使我的viewcontroller符合协议＆＃34; UITableViewDataSource和视频模式委托＆＃34;？
我在之前的主题中尝试了一些建议的更改，但没有任何结果让我通过，请帮帮我。
提前致谢
import UIKit
import Alamofire
类选项卡：UIViewController，UITableViewDataSource， UITableViewDelegate，VideoModelDelegate ERROR- Type＆＃39; tab＆＃39;不符合协议＆＃39; UITableViewDataSource＆＃39;
{
@IBOutlet weak var table: UITableView!
@IBOutlet weak var name: UILabel!
var videos : [Video] = [Video]()
var selectedVideo:Video?
let model:VideoModel = VideoModel()
var arrRes = [[String:AnyObject]]() //Array of dictionary
override func viewDidLoad() {
super.viewDidLoad()
self.model.delegate = self
//self.videos = model.getVideos()
model.getFeedVideos()
self.table.dataSource = self
self.table.delegate = self
/*Alamofire.request(.GET, "http://online.m-tutor.com/mtutor/gateway/mtutorAPI_1.php?type=university").response { (req, res, data, error) -> Void in
print(res)
let outputString = NSString(data: data!, encoding:NSUTF8StringEncoding)
print(outputString)
}
Alamofire.request(.GET, "http://online.m-tutor.com/mtutor/gateway/mtutorAPI_1.php?type=university").responseJSON { response in
if let swiftyJsonVar = response.data
{
print("swiftyJsonvar:\(swiftyJsonVar)")
}
}*/
Alamofire.request(.GET, "http://online.m-tutor.com/mtutor/gateway/mtutorAPI_1.php?type=university").responseJSON { (responseData) -> Void in
let swiftyJsonVar = JSON(responseData.result.value!)
if let resData = swiftyJsonVar["contacts"].arrayObject {
self.arrRes = resData as! [[String:AnyObject]]
}
if self.arrRes.count > 0 {
self.table.reloadData()
}
}
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
func dataReady(){
self.videos = self.model.videoArray
self.table.reloadData()
}
func tableView(table: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) ->
CGFloat {
return(self.view.frame.size.width / 320) * 180
}
func tableview(table:UITableView, numberOfRowsInSection section: Int ) ->Int{
return videos.count
}
func tableVie(table: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) ->
UITableViewCell{
let cell = table.dequeueReusableCellWithIdentifier("jsonCell")!
let videoTitle = videos[indexPath.row].videoTitle
let label = cell.viewWithTag(2) as! UILabel
label.text = videoTitle
//cell.textLabel?.text = videoTitle
让videoThumbnailUrlString = 影片[indexPath.row] .videoThumbnailUrlString）的 ERROR:Expected Expression
让videoThumbnailUrl！= nil 错误 - ＆＃39;！=不是前缀一元运算符＆＃39; 和＆＃39;类型注释缺少模式＆＃39;
{
let request = NSURLRequest(URL: videoThumbnailUrl!)
let session = NSURLSession.sharedSession()
let dataTask = session.dataTaskWithRequest(request, completionHandler: {(data:NSData?, response:NSURLResponse?, error:NSError) -> Void in
dispatch_async(dispatch_get_main_queue(), { () -> Void in
let imageView = cell.viewWithTag(1) as! UIImageView
imageView.image = UIImage(data: data!)
})
})
dataTask.resume()
}
return cell
func tableView(table: UITableView, didSelectRowAtIndexPath indexpath: NSIndexPath){
self.selectedVideo = self.videos[indexpath.row]
self.performSegueWithIdentifier("toVDVC", sender: self)
}
func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?){
let detailViewController = segue.destinationViewController as! VDViewController
detailViewController.selectedVideo = self.selectedVideo
}
}
} }
RE
答案 0 :(得分：1)
看起来好像你没有关闭方法didReceivedMemoryWarning：并且tableview委托方法在这个方法中有效地导致你的问题。添加一个右括号，它应该没问题：
更新：这是更新后的代码。括号中存在更多格式问题，而cellForRowAtIndex中的if语句出现错误：
import UIKit
import Alamofire
class tab: UIViewController, UITableViewDataSource, UITableViewDelegate, VideoModelDelegate {
@IBOutlet weak var table: UITableView!
@IBOutlet weak var name: UILabel!
var videos : [Video] = [Video]()
var selectedVideo:Video?
let model:VideoModel = VideoModel()
var arrRes = [[String:AnyObject]]() //Array of dictionary
override func viewDidLoad() {
super.viewDidLoad()
self.model.delegate = self
//self.videos = model.getVideos()
model.getFeedVideos()
self.table.dataSource = self
self.table.delegate = self
/*Alamofire.request(.GET, "http://online.m-tutor.com/mtutor/gateway/mtutorAPI_1.php?type=university").response { (req, res, data, error) -> Void in
print(res)
let outputString = NSString(data: data!, encoding:NSUTF8StringEncoding)
print(outputString)
}
Alamofire.request(.GET, "http://online.m-tutor.com/mtutor/gateway/mtutorAPI_1.php?type=university").responseJSON { response in
if let swiftyJsonVar = response.data
{
print("swiftyJsonvar:\(swiftyJsonVar)")
}
}*/
Alamofire.request(.GET, "http://online.m-tutor.com/mtutor/gateway/mtutorAPI_1.php?type=university").responseJSON { (responseData) -> Void in
let swiftyJsonVar = JSON(responseData.result.value!)
if let resData = swiftyJsonVar["contacts"].arrayObject {
self.arrRes = resData as! [[String:AnyObject]]
}
if self.arrRes.count > 0 {
self.table.reloadData()
}
}
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
} //ADDED CLOSING BRACKET HERE
func dataReady(){
self.videos = self.model.videoArray
self.table.reloadData()
}
func tableView(table: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) ->
CGFloat {
return(self.view.frame.size.width / 320) * 180
}
func tableview(table:UITableView, numberOfRowsInSection section: Int ) ->Int{
return videos.count
}
func tableVie(table: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) ->
UITableViewCell{
let cell = table.dequeueReusableCellWithIdentifier("jsonCell")!
let videoTitle = videos[indexPath.row].videoTitle
let label = cell.viewWithTag(2) as! UILabel
label.text = videoTitle
//cell.textLabel?.text = videoTitle
//CHANGE THESE TWO LINES:
//let videoThumbnailUrlString = videos[indexPath.row].videoThumbnailUrlString;)
//if let videoThumbnailUrl != nil {
//TO THIS:
if let videoThumbnailUrl = videos[indexPath.row].videoThumbnailUrlString {
let request = NSURLRequest(URL: videoThumbnailUrl!)
let session = NSURLSession.sharedSession()
let dataTask = session.dataTaskWithRequest(request, completionHandler: {(data:NSData?, response:NSURLResponse?, error:NSError) -> Void in
dispatch_async(dispatch_get_main_queue(), { () -> Void in
let imageView = cell.viewWithTag(1) as! UIImageView
imageView.image = UIImage(data: data!)
})
})
dataTask.resume()
}
return cell
}
func tableView(table: UITableView, didSelectRowAtIndexPath indexpath: NSIndexPath){
self.selectedVideo = self.videos[indexpath.row]
self.performSegueWithIdentifier("toVDVC", sender: self)
}
func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?){
let detailViewController = segue.destinationViewController as! VDViewController
detailViewController.selectedVideo = self.selectedVideo
}
}