**

我使用AvPlayer寫的,所以大家一定得記住要匯入AvFoundation的庫，話不多說，直接上程式碼

**

這裡我是把AvPlayer封裝到了一個類裡,

//
//  CXPlayMvViewController.m
//  LeeMusic
//
//  Created by ChuXiang on 15/12/9.
//  Copyright © 2015年 ChuXiang. All rights reserved.
//

#import "LoveMusicPlayer.h"
#import <AVFoundation/AVFoundation.h>
@implementation
 
 LoveMusicPlayer

+ (LoveMusicPlayer *)sharePlayer{
    static LoveMusicPlayer* Player = nil;
    if (Player==nil) {
        Player =[[LoveMusicPlayer alloc] init];
    }
    return Player;
}

- (void)playWithURL:(NSString *)url{
    AVPlayerItem * item = [[AVPlayerItem alloc] initWithURL:[NSURL URLWithString:url]];
    [self
 
 replaceCurrentItemWithPlayerItem: item];
    [self play];
}
@end

這裡是在ViewController裡完成的程式碼，我是直接找了一個音樂播放器的歌單的Url然後在這裡請求資料的。
其實做起來也沒那麼難，AvPlayer它本身就有很多方法供大家使用，比如從url中獲取歌曲總長（不過大家它給的時間是以秒為單位的，大家別忘了把它化成分秒，下面我也寫到，大家可以參考），比如播放器音量，直接跟你寫的音量slider繫結到一起等等。大家可以慢慢看，先把頁面鋪完(歌曲的圖片轉動我為了偷工減料就直接用計時器寫了，看起來有點Low)，再把該完成的方法寫了就完事了。

//
//  ViewController.m
//  PlayMusic
//
//  Created by ChuXiang on 16/1/3.
//  Copyright © 2016年 ChuXiang. All rights reserved.
//

#import "ViewController.h"
#import "LoveMusicPlayer.h"
#import "CXSingListModel.h"
#import <AVFoundation/AVFoundation.h>
#import "UIImageView+WebCache.h"
#import "CXNetWorkTool.h"
#define kWidth ([UIScreen mainScreen].bounds.size.width / 375)
#define kHeight ([UIScreen mainScreen].bounds.size.height / 667)
#define kControlBarHeight 300
#define kControlBarCenterY (kScreenHeight - 150)

#define kScreenWidth [UIScreen mainScreen].bounds.size.width

#define kScreenHeight [UIScreen mainScreen].bounds.size.height

#define kControlBarOriginY (kScreenHeight - kControlBarHeight)

#define kMusicInfoOriginY (kControlBarOriginY + 40)

#define kControlBarCenterX self.view.center.x
#define kControlBarCenterY (kScreenHeight - 150)
#define kButtonOffsetX 120
#define kFindMusicGetURL @"http://a.vip.migu.cn/rdp2/v5.5/index.do?ua=Iphone_Sst&version=4.2421&pageno=1"


@interface ViewController () <UIScrollViewDelegate>
//處理音樂資料
@property (nonatomic, copy) NSString *songId;
@property (nonatomic, retain) NSMutableArray *myArr;
@property (nonatomic, assign) NSInteger index;
@property (nonatomic, strong)  CXSingListModel *model;

// 播放器
@property (nonatomic, retain) LoveMusicPlayer *player;

@property (nonatomic, assign) BOOL isPlaying;
//播放列表屬性
@property (nonatomic, retain) UIImageView *myImageView;
@property (nonatomic, retain) UIButton *playButton;
@property (nonatomic, retain) UILabel *authorSongLabel;
@property (nonatomic, retain) UILabel *songNameLabel;
@property (nonatomic, retain) UISlider *slider;
@property (nonatomic, retain) NSTimer *timer;
@property (nonatomic, retain) NSTimer *imgTimer;
@property (nonatomic, retain) UIImageView *backImage;
@property (nonatomic, retain) UILabel *timeLable;
@property (nonatomic, retain) UILabel *currentTimeLable;
@property (nonatomic, retain) UIScrollView *scrollView;
@property (nonatomic, retain) UIPageControl *pageControl;
@property (nonatomic, retain) UISlider *volumeSlider;

//判斷播放狀態
@property (nonatomic, assign) NSInteger type;


//播放狀態的列舉
typedef NS_ENUM(NSUInteger, PlayType) {
    PlayTypeLive = 0,
    PlayTypeNext,
    PlayTypeLast
};


@end

@implementation ViewController

static ViewController *single = nil;
// 單例執行 只初始化一次
+ (instancetype) shareSingleViewController {

    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        //  在多執行緒中保證只初始化一次
        single = [[ViewController alloc] init];
    });
    return single;
}

//網路請求資料
- (void)getWithUrl:(NSString *)url parameter:(NSDictionary *)parameter withKey:(NSString *)key WithValue:(NSString *)value{
    self.myArr = [NSMutableArray arrayWithCapacity:0];
    [CXNetWorkTool getWithUrl:url parameter:nil httpHeader:nil responseType:ResponseTypeJSON success:^(id result) {
        if (result) {
            NSDictionary *dic = result;
            NSArray *array = dic[@"groups"];
            NSDictionary *dic1 = array[3];
            NSArray *array1 = dic1[@"songs"];
            for (NSDictionary *dic in array1) {
                CXSingListModel *model = [[CXSingListModel alloc] initWithDictionary:dic];
                [self.myArr addObject:model];
            }
            dispatch_async(dispatch_get_main_queue(), ^{
                [self createMusicData];
            });

        }
    }
        fail:^(NSError *error) {
//                NSLog(@"%@", error);
    }];

}



- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    [self getWithUrl:kFindMusicGetURL parameter:nil withKey:nil WithValue:nil];

    self.view.backgroundColor = [UIColor whiteColor];

    //    播放背景圖片
    self.backImage = [[UIImageView alloc] initWithFrame:self.view.frame];
    //    上部分高亮顯示
    UIBlurEffect *blur = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];
    UIVisualEffectView *effectview = [[UIVisualEffectView alloc] initWithEffect:blur];
    effectview.frame = CGRectMake(0, 0, self.backImage.frame.size.width , self.backImage.frame.size.height);

    [self.backImage addSubview:effectview];
    [self.view addSubview:self.backImage];

    //    pageControl
    CGFloat size_width = CGRectGetWidth(self.view.bounds) - 80;
    self.pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(0, 60 + size_width, kScreenWidth, 20)];
    self.pageControl.numberOfPages = 2;
    self.pageControl.currentPage = 0;

    //    createSrollView
    self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.bounds), CGRectGetHeight(self.view.bounds) - 250)];
    self.scrollView.delegate = self;
    self.scrollView.contentSize = CGSizeMake(CGRectGetWidth(self.scrollView.bounds) * 2, CGRectGetHeight(self.scrollView.bounds));
    self.scrollView.pagingEnabled = YES;
    self.scrollView.showsHorizontalScrollIndicator = NO;
    [self.view addSubview:self.scrollView];

    [self.view addSubview:self.pageControl];

    //    底部播放介面 blur效果
    UIVisualEffectView *background = [[UIVisualEffectView alloc] initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleExtraLight]];
    background.frame = CGRectMake(0, kControlBarOriginY + 50, kScreenWidth, kControlBarHeight);
    [self.view addSubview:background];

    //進入之後自動播放
    self.isPlaying = YES;
    //建立音樂播放器物件
    self.player = [LoveMusicPlayer sharePlayer];

    // 新增播放完成的通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackFinished:) name:AVPlayerItemDidPlayToEndTimeNotification object:self.player.currentItem];

    //滾動的歌曲圖片
    self.myImageView = [[UIImageView alloc] initWithFrame:CGRectMake(40, 50, size_width, size_width)];
    self.myImageView.layer.cornerRadius = size_width / 2;
    self.myImageView.layer.borderColor = [UIColor lightGrayColor].CGColor;
    self.myImageView.layer.borderWidth = 2;
    self.myImageView.layer.masksToBounds = YES;
    [self.scrollView addSubview:self.myImageView];


    //歌手名
    self.authorSongLabel = [[UILabel alloc] initWithFrame:CGRectMake( 0 , kScreenHeight - 230, kScreenWidth, 30)];
    //居中對齊
    self.authorSongLabel.textAlignment = NSTextAlignmentCenter;
    [self.view addSubview:self.authorSongLabel];

    //歌手label
    self.songNameLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, self.authorSongLabel.frame.origin.y + self.authorSongLabel.frame.size.height + 10, kScreenWidth, 20)];
    self.songNameLabel.textAlignment = NSTextAlignmentCenter;
    self.songNameLabel.font = [UIFont systemFontOfSize:11];
    [self.view addSubview:self.songNameLabel];

    // 進度條
    self.slider = [[UISlider alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth - 100, 20)];
    self.slider.center = CGPointMake(kControlBarCenterX, kControlBarCenterY + 10);

    [self.slider setThumbImage:[UIImage imageNamed:@"volumn_slider_thumb"] forState:UIControlStateNormal];
    self.slider.minimumTrackTintColor = [UIColor blackColor];
    self.slider.minimumValue = 0.0;
    self.slider.maximumValue = 1.0;
    [self.slider addTarget:self action:@selector(progressAction:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview:self.slider];

    //聲音slider
    self.volumeSlider = [[UISlider alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth - 100, 20)];
    self.volumeSlider.center = CGPointMake(kControlBarCenterX, kControlBarCenterY + 60);
    [self.volumeSlider setThumbImage:[UIImage imageNamed:@"volumn_slider_thumb"] forState:UIControlStateNormal];
    self.volumeSlider.maximumValue = 1;
    self.volumeSlider.minimumValueImage = [UIImage imageNamed:@"volumelow"];
    self.volumeSlider.maximumValueImage = [UIImage imageNamed:@"volumehigh"];
    self.volumeSlider.value = 1;
    self.volumeSlider.minimumTrackTintColor = [UIColor blackColor];
    [self.volumeSlider addTarget:self action:@selector(handleVolumeAction:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview:self.volumeSlider];

    //當前播放時間label
    self.currentTimeLable = [[UILabel alloc] initWithFrame:CGRectMake(self.slider.frame.origin.x - 5 - 38, self.slider.frame.origin.y, 50, 20)];
    self.currentTimeLable.text = @"00:00";
    self.currentTimeLable.font = [UIFont systemFontOfSize:13];
    [self.view addSubview:self.currentTimeLable];

    //總時間label
    self.timeLable = [[UILabel alloc] initWithFrame:CGRectMake(self.slider.frame.origin.x + self.slider.frame.size.width, self.slider.frame.origin.y, 50, 20)];
    self.timeLable.font = [UIFont systemFontOfSize:13];
    [self.view addSubview:self.timeLable];
    self.timeLable.text = @"11:11";

    // 計時器 控制播放
    self.timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(playerAction) userInfo:nil repeats:YES];

    //    控制轉動頭像
    self.imgTimer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(imgTransform) userInfo:nil repeats:YES];

    // 播放的button
    self.playButton = [UIButton buttonWithType:UIButtonTypeSystem];
    self.playButton.frame = CGRectMake(160 * kWidth, self.view.frame.size.height - 60, 50 * kWidth, 50 * kWidth);
    [self.playButton setBackgroundImage:[UIImage imageNamed:@"stop"] forState:UIControlStateNormal];
    [self.playButton addTarget:self action:@selector(clickPlay:) forControlEvents:UIControlEventTouchUpInside];
    self.playButton.tag = 520;
    [self.view addSubview:self.playButton];


    //上一曲的button
    UIButton *buttonUp = [UIButton buttonWithType:UIButtonTypeSystem];
    buttonUp.frame = CGRectMake(60 * kWidth, self.view.frame.size.height - 50, 30 * kWidth, 30 * kWidth);
    [buttonUp setBackgroundImage:[UIImage imageNamed:@"pause"] forState:UIControlStateNormal];
    [buttonUp addTarget:self action:@selector(playUp:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:buttonUp];


    //下一曲的button
    UIButton *buttonNext = [UIButton buttonWithType:UIButtonTypeSystem];
    buttonNext.frame = CGRectMake(280 * kWidth, self.view.frame.size.height - 50, 30 * kWidth, 30 * kWidth);
    [buttonNext setBackgroundImage:[UIImage imageNamed:@"next"] forState:UIControlStateNormal];
    [buttonNext addTarget:self action:@selector(playNext:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:buttonNext];


}


#pragma mark - 聲音
- (void)handleVolumeAction:(UISlider *)sender {
    [self.player setVolume:sender.value];
}

#pragma mark - SroolerView結束滑動
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
    NSUInteger index = scrollView.contentOffset.x / scrollView.bounds.size.width;
    self.pageControl.currentPage = index;
}

#pragma mark - 計時器方法 - 圖片轉動
- (void)imgTransform {

    self.myImageView.transform = CGAffineTransformRotate(self.myImageView.transform, 0.01);

}

#pragma mark - 播放計時器方法
-(void)playerAction{

    //當前時間 / 總時間
    self.slider.value = CMTimeGetSeconds(self.player.currentItem.currentTime) / CMTimeGetSeconds(self.player.currentItem.duration);

    //總共時間(右邊顯示)
    NSInteger totalTime = CMTimeGetSeconds(self.player.currentItem.duration);
    NSInteger minTime = totalTime / 60;
    NSInteger secondTime = totalTime % 60;
    NSString *timeStr = [NSString stringWithFormat:@"%02ld:%02ld", (long)minTime,(long)secondTime];
    self.timeLable.text = timeStr;

    //當前播放時間(左邊顯示)
    NSInteger totalTime1 = CMTimeGetSeconds(self.player.currentItem.currentTime);

    NSInteger minTime1 = totalTime1 / 60;
    NSInteger secondTime1 = totalTime1 % 60;
    NSString *timeStr1 = [NSString stringWithFormat:@"%02ld:%02ld", (long)minTime1,(long)secondTime1];
    self.currentTimeLable.text = timeStr1;

    //判斷是否是最後一首歌曲,如果是最後一首歌,播放完之後自動變換播放按鈕
    if((self.index == self.myArr.count - 1) && (totalTime==totalTime1)){
        [self.player pause];
        [self.playButton setBackgroundImage:[UIImage imageNamed:@"songplay"] forState:UIControlStateNormal];
    }

}

#pragma mark - 進度條方法
-(void)progressAction:(UISlider *)slider{

    float current = slider.value;
    float nextCurrent = current * CMTimeGetSeconds(self.player.currentItem.duration);
    [self.player seekToTime:CMTimeMakeWithSeconds(nextCurrent, 1.0)];


    [self.player play];
    //在暫停的時候,如果拉動進度條,播放按鈕就變成播放圖片
    [self.playButton setBackgroundImage:[UIImage imageNamed:@"stop"] forState:UIControlStateNormal];

    // 控制計時器的最大範圍
    self.timer.fireDate =[NSDate distantPast];
}



//上一曲
#pragma mark - 播放設定
- (void)playUp:(UIButton *)button{
    //先查詢當前歌曲
    //判斷,如果是第一首歌就不做任何操作,如果不是第一首就把id賦值給解析資料
    if (self.index != 0) {
        CXSingListModel *listMode = self.myArr[self.index - 1];
        //        CXSingListModel *listMode = self.musicArr[self.index - 1];
        NSString *str = [listMode.url stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
        self.songId = str;
        _type = PlayTypeLast;
        //呼叫資料解析
        [self createMusicData];
        [self.playButton setBackgroundImage:[UIImage imageNamed:@"stop"] forState:UIControlStateNormal];

    }else{
        //當上一曲沒有歌曲 彈出alert提示框
        [self.player pause];
        UIAlertController *mBoxView = [UIAlertController alertControllerWithTitle:@"嗨" message:@"上面還沒有歌曲~" preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"確定" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
            [self dismissViewControllerAnimated:YES completion:^{

            }];
        }];

        UIAlertAction *otherAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
            [self dismissViewControllerAnimated:YES completion:^{

            }];
        }];
        [mBoxView addAction:cancelAction];
        [mBoxView addAction:otherAction];
        [self presentViewController:mBoxView animated:YES completion:nil];

        [self.playButton setBackgroundImage:[UIImage imageNamed:@"songplay"] forState:UIControlStateNormal];
    }

}

//下一曲
- (void)playNext:(UIButton *)button{
    //先查詢當前歌曲
    //然後播放下一曲
    //判斷是否是最後一曲,如果不是就重新賦值
    if (self.index != self.myArr.count - 1) {
        CXSingListModel *listMode = self.myArr[self.index + 1];
        NSString *str = [listMode.url stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
        self.songId = str;
        _type = PlayTypeNext;
        [self createMusicData];

    }else{
        //當下一曲沒有歌曲 彈出alert提示框
        UIAlertController *mBoxView = [UIAlertController alertControllerWithTitle:@"嗨" message:@"已經最後一首了~" preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"確定" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
            [self dismissViewControllerAnimated:YES completion:^{

            }];
        }];

        UIAlertAction *otherAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
            [self dismissViewControllerAnimated:YES completion:^{

            }];
        }];
        [mBoxView addAction:cancelAction];
        [mBoxView addAction:otherAction];
        [self presentViewController:mBoxView animated:YES completion:nil];

        [self.playButton setBackgroundImage:[UIImage imageNamed:@"songplay"] forState:UIControlStateNormal];
    }
}

#pragma mark - 播放時介面賦值
- (void)createMusicData {


    //先查詢當前歌曲
    self.index = 0;
    for (NSInteger i = 0; i < self.myArr.count; i++) {
        CXSingListModel *detailMo = self.myArr[i];
        NSString *str = [detailMo.url stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
        if ([str isEqualToString:self.songId]) {
            self.index = i;
            break;
        }
    }
    if (_type == PlayTypeLive) {
        CXSingListModel *model = self.myArr[self.index];
        //        判斷傳進來的歌曲id是否與正在播放的id是否相同,如果相同不執行,不相同執行換歌
        if (![self.model.contentid isEqualToString:model.contentid]) {
            NSString *str = model.url;
            NSString *str1 = [str stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
            [self.player playWithURL:str1];
            [self.backImage sd_setImageWithURL:[NSURL URLWithString:model.albumImg]];
            if ([model.albumImg isEqualToString:@""]) {
                self.backImage.backgroundColor = [UIColor redColor];
            }

            [self.myImageView sd_setImageWithURL:[NSURL URLWithString:model.albumImg]];
            self.songNameLabel.text = [NSString stringWithFormat:@"%@ - %@", model.singer, model.album];
            self.authorSongLabel.text = model.title;

            self.model = model;
        }

    }else if (_type == PlayTypeLast) {
        if (self.index > 0) {
            CXSingListModel *model = self.myArr[self.index - 1];
            NSString *str = model.url;
            NSString *str1 = [str stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
            [self.player playWithURL:str1];
            [self.backImage sd_setImageWithURL:[NSURL URLWithString:model.albumImg]];
            [self.myImageView sd_setImageWithURL:[NSURL URLWithString:model.albumImg]];
            self.songNameLabel.text = [NSString stringWithFormat:@"%@ - %@", model.singer, model.album];
            self.authorSongLabel.text = model.title;

        }else {
            CXSingListModel *model = self.myArr[0];
            NSString *str = model.url;
            NSString *str1 = [str stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
            [self.player playWithURL:str1];
            [self.backImage sd_setImageWithURL:[NSURL URLWithString:model.albumImg]];
            [self.myImageView sd_setImageWithURL:[NSURL URLWithString:model.albumImg]];
            self.songNameLabel.text = [NSString stringWithFormat:@"%@ - %@", model.singer, model.album];
            self.authorSongLabel.text = model.title;

        }

    }else if (_type == PlayTypeNext) {
        if (self.index < self.myArr.count - 2) {
            CXSingListModel *model = self.myArr[self.index + 1];
            NSString *str = model.url;
            NSString *str1 = [str stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
            [self.player playWithURL:str1];

            [self.myImageView sd_setImageWithURL:[NSURL URLWithString:model.singerImg]];
            self.authorSongLabel.text = model.title;
            self.songNameLabel.text = [NSString stringWithFormat:@"%@ - %@", model.singer, model.album];

        }else {
            CXSingListModel *model = self.myArr[self.myArr.count - 1];
            NSString *str = model.url;
            NSString *str1 = [str stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
            [self.player playWithURL:str1];

            [self.myImageView sd_setImageWithURL:[NSURL URLWithString:model.singerImg]];
            self.authorSongLabel.text = model.title;
            self.songNameLabel.text = [NSString stringWithFormat:@"%@ - %@", model.singer, model.album];

        }
    }

}

#pragma mark - 監聽播放
//監聽實現的方法
- (void)playbackFinished:(NSNotification *)notificatio{
    //然後播放下一曲
    //判斷是否是最後一曲,如果不是就重新賦值
    //    if (self.index != self.myArr.count - 1) {
    if (self.index != self.myArr.count - 1) {

        CXSingListModel *listMode = self.myArr[self.index + 1];
        NSString *str = [listMode.url stringByAppendingString:@"&ua=Iphone_Sst&version=4.2421&netType=1&toneFlag=1"];
        self.songId = str;
        //呼叫資料解析
        [self createMusicData];
        NSLog(@"下一首");
    }else{
        [self.player pause];
        UIAlertController *mBoxView = [UIAlertController alertControllerWithTitle:@"嗨" message:@"已經最後一首了~" preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"確定" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
            [self dismissViewControllerAnimated:YES completion:^{

            }];
        }];

        UIAlertAction *otherAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
            [self dismissViewControllerAnimated:YES completion:^{

            }];
        }];
        [mBoxView addAction:cancelAction];
        [mBoxView addAction:otherAction];
        [self presentViewController:mBoxView animated:YES completion:nil];
    }
}

//播放按鈕
- (void)clickPlay:(UIButton *)button{
    self.isPlaying = !self.isPlaying;
    if (self.isPlaying) {
        [self.imgTimer setFireDate:[NSDate distantPast]];
        [self resume];
        //變成暫停按鈕
        [button setBackgroundImage:[UIImage imageNamed:@"stop"] forState:UIControlStateNormal];

    }else{
        //計時器暫停
        [self.imgTimer setFireDate:[NSDate distantFuture]];
        [self pause];//暫停

        //變成播放按鈕
        [button setBackgroundImage:[UIImage imageNamed:@"songplay"] forState:UIControlStateNormal];

    }

}

- (void)resume{
    [self.player play];
}

- (void)pause{
    [self.player pause];
}


//防止記憶體洩露
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

完成後的效果圖：

希望大家有什麼好的想法，可以優化程式碼的地方私聊我，大家一起進步。加油