swift 豆瓣音乐开发案例
经过一天整理及学习,终于用swift语言完成了《豆瓣音乐》开发任务。快快感受一下作品吧。导入工程就可以运行了。
功能:某一频道列表
所有频道列表,点击返回某一频道
工程结构图
代码如下:
ViewController.swift
import UIKit import MediaPlayer import QuartzCore // 文启领航 bjflexedu.com // qq:376610000 class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate,HttpProtocol,ChannelProtocol{ @IBOutlet var btnPlay : UIImageView @IBOutlet var tap : UITapGestureRecognizer = nil @IBOutlet var playTim : UILabel @IBOutlet var progressView : UIProgressView @IBOutlet var iv : UIImageView @IBOutlet var tv : UITableView var tableData:NSArray = NSArray() var channelData:NSArray = NSArray() var imageCache = Dictionary<String,UIImage>() var audioPlayer:MPMoviePlayerController = MPMoviePlayerController() var ehttp:HttpController = HttpController() var timer:NSTimer? @IBAction func onTap(sender : UITapGestureRecognizer) { println("tap") if sender.view == btnPlay{ btnPlay.hidden = true audioPlayer.play() btnPlay.removeGestureRecognizer(tap) iv.addGestureRecognizer(tap) } else if sender.view == iv{ btnPlay.hidden = false audioPlayer.pause() btnPlay.addGestureRecognizer(tap) iv.removeGestureRecognizer(tap) } } override func viewDidLoad() { super.viewDidLoad() ehttp.delegate = self ehttp.onSearch("http://www.douban.com/j/app/radio/channels") ehttp.onSearch("http://douban.fm/j/mine/playlist?channel=0") progressView.progress = 0.0 iv.addGestureRecognizer(tap) } func onChangeChannel(channel_id:String){ let url:String = "http://douban.fm/j/mine/playlist?\(channel_id)" ehttp.onSearch(url) } override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) { var channelC:ChannelController = segue.destinationViewController as ChannelController channelC.channelData = self.channelData println("d") channelC.delegate = self } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() println("dd") } func tableView(tableView: UITableView!, numberOfRowsInSection section: Int) -> Int{ return self.tableData.count } func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell!{ var cell = UITableViewCell(style: UITableViewCellStyle.Subtitle, reuseIdentifier: "douban") let rowData:NSDictionary = self.tableData[indexPath.row] as NSDictionary cell.text = rowData["title"] as String cell.detailTextLabel.text = rowData["artist"] as String cell.image = UIImage(named:"detail.jpg") let url = rowData["picture"] as String let image = self.imageCache[url] as? UIImage if !image? { let imgURL:NSURL = NSURL(string: url) let request:NSURLRequest = NSURLRequest(URL: imgURL) NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: { (response, data, error) -> Void in let img = UIImage(data: data) cell.image = img self.imageCache[url] = img }) }else{ cell.image = image //self.imageCache["url"] } return cell } func didRecieveResults(results:NSDictionary){ println("dd") println(results); if(results["song"]){ self.tableData = results["song"] as NSArray self.tv.reloadData() let firstDict:NSDictionary = self.tableData[0] as NSDictionary let audioURL:String = firstDict["url"] as String onSetAudio(audioURL) let imgUrl:String = firstDict["picture"] as String onSetImage(imgUrl) }else if(results["channels"]){ self.channelData = results["channels"] as NSArray } } func onSetAudio(url:String){ timer?.invalidate() playTim.text = "00:00" self.audioPlayer.stop() self.audioPlayer.contentURL = NSURL(string: url) self.audioPlayer.play() timer = NSTimer.scheduledTimerWithTimeInterval(0.4, target: self, selector: "onUpdate", userInfo: nil, repeats: true) btnPlay.removeGestureRecognizer(tap) iv.addGestureRecognizer(tap) btnPlay.hidden = true } func onUpdate(){ println("==") let currentTimer = audioPlayer.currentPlaybackTime if currentTimer>0.0 { let dur = audioPlayer.duration let pecent:CFloat = CFloat(currentTimer/dur) progressView.setProgress(pecent, animated: false) let all:Int = Int(currentTimer) let m:Int = all%60 let f:Int = Int(all/60) var time:String = "" //小时 if f<10{ time = "0\(f):" }else{ time = "\(f):" } // 分钟 if m<10{ time += "0\(m)" }else{ time += "\(m)" } playTim.text = time } } func onSetImage(url:String){ let image = self.imageCache[url] as? UIImage if !image? { let imgURL:NSURL = NSURL(string: url) let request:NSURLRequest = NSURLRequest(URL: imgURL) NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: { (response, data, error) -> Void in let img = UIImage(data: data) self.iv.image = img self.imageCache[url] = img }) }else{ self.iv.image = image } } //选择其中之一 func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!){ var rowData:NSDictionary = self.tableData[indexPath.row] as NSDictionary let url = rowData["url"] as String onSetAudio(url) let urlImg = rowData["picture"] as String onSetImage(urlImg) } //动画效果 func tableView(tableView: UITableView!, willDisplayCell cell: UITableViewCell!, forRowAtIndexPath indexPath: NSIndexPath!){ cell.layer.transform = CATransform3DMakeScale(0.1,0.1,1) UIView.animateWithDuration(0.25,animations:{ cell.layer.transform = CATransform3DMakeScale(1,1,1) }) } }
ChannelProtocol.swift
import UIKit import QuartzCore // 文启领航 bjflexedu.com // qq:376610000 protocol ChannelProtocol{ func onChangeChannel(channel_id:String) } class ChannelController: UIViewController,UITableViewDataSource,UITableViewDelegate { @IBOutlet var tv : UITableView var channelData:NSArray = NSArray() var delegate:ChannelProtocol? override func viewDidLoad() { super.viewDidLoad() } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() } func tableView(tableView: UITableView!, numberOfRowsInSection section: Int) -> Int{ return channelData.count } func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell!{ let cell = UITableViewCell(style: UITableViewCellStyle.Subtitle, reuseIdentifier: "channel") let rowData:NSDictionary = self.channelData[indexPath.row] as NSDictionary cell.text = rowData["name"] as String cell.image = UIImage(named:"detail.jpg") // cell.detailTextLabel.text = rowData["channel_id"] as String return cell } // func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!){ var rowData:NSDictionary = self.channelData[indexPath.row] as NSDictionary let channel_id:AnyObject = rowData["channel_id"] as AnyObject let channel:String = "channel=\(channel_id)" self.delegate?.onChangeChannel(channel) self.dismissViewControllerAnimated(true, completion: nil) } //动画效果 func tableView(tableView: UITableView!, willDisplayCell cell: UITableViewCell!, forRowAtIndexPath indexPath: NSIndexPath!){ cell.layer.transform = CATransform3DMakeScale(0.1,0.1,1) UIView.animateWithDuration(0.25,animations:{ cell.layer.transform = CATransform3DMakeScale(1,1,1) }) } }
HttpProtocol.swift
import UIKit // 文启领航 bjflexedu.com // qq:376610000 protocol HttpProtocol{ func didRecieveResults(results:NSDictionary) } class HttpController:NSObject{ var delegate:HttpProtocol? func onSearch(url:String){ var nsUrl:NSURL = NSURL(string: url) var request:NSURLRequest = NSURLRequest(URL: nsUrl) NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: { (response, data, error) -> Void in var jsonResult:NSDictionary = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary self.delegate?.didRecieveResults(jsonResult) }) } }
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