此版本使用百度音乐接口，原因是豆瓣接口很多歌曲没办法找到歌词。
此版本添加了歌词的显示、上一曲、下一曲的实现、歌曲列表指明当前歌曲。
下面来看一下实现过程》》》
一、项目准备：
百度音乐国语歌曲列表Api接口:
http://tingapi.ting.baidu.com/v1/restserver/ting?method=baidu.ting.song.getSmartSongList&page_no=1&page_size=50&scene_id=42&item_id=115&version=5.2.1&from=ios&channel=appstore
百度音乐mp3搜索Api接口：
http://box.zhangmen.baidu.com/x?op=12&count=1&title=歌曲名称$$歌唱者$$$$
二、修改实体Song.swift 让其跟百度音乐 列表字段名称一致
import Foundation
class Song: NSObject { var artist_id:NSNumber = 0.0
var language:NSString = ""
var pic_big:NSString = ""
var pic_small:NSString = ""
var country:NSString = ""
var area:NSNumber = 0.0
var publishtime:NSString = ""
var album_no:NSNumber = 0.0
var lrclink:NSString = ""
var versions:NSString = ""
var copy_type:NSNumber = 0.0
var file_duration:NSNumber = 0.0
var hot:NSString = ""
var all_artist_ting_uid:NSNumber = 0.0
var pic_premium:NSString = ""
var pic_huge:NSString = ""
var pic_singer:NSString = ""
var all_rate:NSString = ""
var resource_type:NSNumber = 0.0
var all_artist_id:NSNumber = 0.0
var compose:NSString = ""
var songwriting:NSString = ""
var del_status:NSNumber = 0.0
var has_mv_mobile:NSNumber = 0.0
var song_id:NSNumber = 0.0
var title:NSString = ""
var ting_uid:NSNumber = 0.0
var author:NSString = ""
var album_id:NSNumber = 0.0
var album_title:NSString = ""
var is_first_publish:NSNumber = 0.0
var havehigh:NSNumber = 0.0
var charge:NSNumber = 0.0
var has_mv:NSNumber = 0.0
var learn:NSNumber = 0.0
var song_source:NSString = ""
var piao_id:NSNumber = 0.0
var korean_bb_song:NSNumber = 0.0
var resource_type_ext:NSNumber = 0.0
}
三、使用block 封装请求接口
新建DataProvider.swift文件 代码如下：
import Foundation
class DataProvider:NSObject,HttpProtocol{
var blockRecive:(NSDictionary) -> () = {param in }
var eHttp:HttpController = HttpController()
override init(){
super.init()
eHttp.delegate=self
}
//**
//*获取歌曲列表
//*
func getSongList(reciveBlock:(NSDictionary) -> () = {param in }){
blockRecive=reciveBlock
eHttp.onSearch("http://tingapi.ting.baidu.com/v1/restserver/ting?method=baidu.ting.song.getSmartSongList&page_no=1&page_size=50&scene_id=42&item_id=115&version=5.2.1&from=ios&channel=appstore")
//
}
//**
//*获取歌曲mp3信息
//*
func getSongMp3(p:Song,reciveBlock:(NSString) -> () = {param in }){
var url:NSString = "http://box.zhangmen.baidu.com/x?op=12&count=1&title=\(p.title)$$\(p.author)$$$$"
var nsUrl:NSURL=NSURL(string:url.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!)!
var request:NSURLRequest=NSURLRequest(URL:nsUrl)
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: {(response:NSURLResponse!,data:NSData!,error:NSError!)->Void in
if (data != nil){
var reciveString:NSString = NSString(data: data, encoding: NSUTF8StringEncoding)!
//
var strArr:NSArray = reciveString.componentsSeparatedByString("<![CDATA[") as NSArray
if strArr.count > {
var s1:NSString = strArr[].description
s1 = s1.stringByReplacingOccurrencesOfString("$]]></encode><decode>", withString: "")
var sArr:NSArray = s1.componentsSeparatedByString("/") as NSArray
var lastS:NSString = sArr.lastObject as NSString
var s2Arr:NSArray = strArr[].description.componentsSeparatedByString("]]") as NSArray
s1 = s1.stringByReplacingOccurrencesOfString(lastS, withString:s2Arr[] as NSString)
NSLog("得到mp3文件地址为:%@", s1); reciveBlock(s1)
}
}
})
}
//**
//*请求网络数据结果
//*
func didRecieveResults(results:NSDictionary){
// NSLog("请求到的数据:%@", results)
blockRecive(results)
}
}
三、修改第一版中调用请求的方法，因为封装到类DataProvider了，只需要从DataProvider上去调用。
//请求列表数据
provider.getSongList { (results) -> () in
let errorCode:NSInteger=results["error_code"] as NSInteger
let result:NSDictionary=results["result"] as NSDictionary
if (errorCode==) {
let resultData:NSArray = result["songlist"] as NSArray
let list:NSMutableArray = NSMutableArray() for(var index:Int=;index<resultData.count;index++){
var dic:NSDictionary = resultData[index] as NSDictionary
var song:Song=Song()
song.setValuesForKeysWithDictionary(dic as NSDictionary)
list.addObject(song)
}
self.tableData=list
self.setCurrentSong(list[] as Song)
}
}
四、在设置当前歌曲的方法里增加请求mp3文件，和请求lrc歌词的调用
//设置当前播放的音乐
func setCurrentSong(curSong:Song){
currentSong=curSong
currentIndex=tableData.indexOfObject(curSong)
photo.image=getImageWithUrl(currentSong.pic_premium)
backgroundImageView.image=photo.image
titleLabel.text=currentSong.title
artistLabel.text="— \(currentSong.author) —"
playButton.selected=false
playTimeLabel.text="00:00"
lrcLabel.text=""
self.progressSlider.value=0.0
self.rotationAnimation()
self.audioPlayer.stop()
timer?.invalidate()
timer=NSTimer.scheduledTimerWithTimeInterval(0.4, target: self, selector: "updateTime", userInfo: nil, repeats: true) getCurrentMp3(curSong)
getCurrentLrc(curSong.lrclink)
}
请求当前的mp3文件
//获取当前mp3
func getCurrentMp3(song:Song){
provider.getSongMp3(song, reciveBlock: { (results) -> () in
self.audioPlayer.contentURL=NSURL(string: results)
})
}
请求当前的lrc歌词文件
//获取歌词
func getCurrentLrc(lrclick:NSString){
currentLrcData=parseLyricWithUrl(lrclick)?
}
对歌词文件的解析-存储到NSArray<ShongLrc>变量中
/**
*解析歌词
*/
func parseLyricWithUrl(urlString:NSString)->NSArray?{
if ( urlString.length < ){
return nil
}
var url : NSURL = NSURL(string:urlString)!
var lyc : NSString = NSString(contentsOfURL: url, encoding:NSUTF8StringEncoding, error: nil)!
NSLog("获取到歌词文件内容:%@", lyc)
var result:NSMutableArray = NSMutableArray()
for lStr in lyc.componentsSeparatedByString("\n") {
var item:NSString = lStr as NSString
if(item.length>){
var dic:NSDictionary = NSDictionary()
var startrange:NSRange = item.rangeOfString("[")
var stoprange:NSRange = item.rangeOfString("]")
if stoprange.length == {
//歌词没时间
var songLrc:SongLrc = SongLrc()
songLrc.total=NSNumber(int: -)//开始显示的秒数
songLrc.time=""//开始显示时间
songLrc.text=item//显示的歌词
result.addObject(songLrc) }else{
var content:NSString = item.substringWithRange(NSMakeRange(startrange.location+, stoprange.location-startrange.location-))
//歌词有时间
if (content.length == ) {
var minute:NSString = content.substringWithRange(NSMakeRange(, ))
var second:NSString = content.substringWithRange(NSMakeRange(, ))
var mm:NSString = content.substringWithRange(NSMakeRange(, ))
var time:NSString = NSString(format: "%@:%@.%@", minute,second,mm)
var total:NSNumber = NSNumber(integer: minute.integerValue * + second.integerValue)
var lyric:NSString = item.substringFromIndex() var songLrc:SongLrc = SongLrc()
songLrc.total=total//开始显示的秒数
songLrc.time=time//开始显示时间
songLrc.text=lyric//显示的歌词
result.addObject(songLrc)
}
} }
}
return result
}
五、为上一首、下一首添加事件
//上一曲
@IBAction func preSongClick(sender: UIButton){
if(currentIndex>){
currentIndex--
}
currentSong=tableData.objectAtIndex(currentIndex) as Song
setCurrentSong(currentSong)
} //下一曲
@IBAction func nextSongClick(sender: UIButton){
if(currentIndex < tableData.count){
currentIndex++
}
currentSong=tableData.objectAtIndex(currentIndex) as Song
setCurrentSong(currentSong)
}
六、在歌曲列表中显示当前播放的歌曲
//当前行数据
let rowSong:Song=self.tableData[indexPath.row] as Song
//行显示内容
cell.textLabel?.text=rowSong.title
cell.textLabel?.font=UIFont(name: "宋体", size: 14.0)
//如果是当前歌曲显示绿色
if indexPath.row == self.viewContorller.currentIndex{
cell.textLabel?.textColor=UIColor.greenColor()
}else{
cell.textLabel?.textColor=UIColor.whiteColor()
}
cell.detailTextLabel?.text=rowSong.author
cell.detailTextLabel?.font=UIFont(name:"宋体", size: 8.0)
最终效果：
源码下载地址：http://download.csdn.net/detail/fangwulongtian/8568535
原文出自：http://www.cnblogs.com/wuxian/p/4397153.html 转载就注明来源