运用iOS教你轻松制作音乐播放器

//// ViewController.m// 播放音乐//// Created by xubh on 2017/3/24.// Copyright © 2017年 xubh. All rights reserved.//#import "ViewController.h"#import <AVFoundation/AVFoundation.h>@interface ViewController ()@property (weak, nonatomic) IBOutlet UIImageView *bgImageview;@property (strong,nonatomic) AVPlayer *player;@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad];// 背景图片和设备屏幕一样大 CGRect r = [ UIScreen mainScreen ].applicationFrame; self.bgImageview.frame = r; // Do any additional setup after loading the view, typically from a nib.// 毛玻璃效果 UIToolbar *toolbar = [[UIToolbar alloc]init]; toolbar.frame = self.bgImageview.bounds; toolbar.barStyle = UIBarStyleBlack; toolbar.alpha = 0.9; [self.bgImageview addSubview:toolbar];// 创建播放器// NSString *path =[[NSBundle mainBundle]pathForResource:@"mysong1.mp3" ofType:nil ];// NSURL *url =[NSURL fileURLWithPath:path]; NSURL *url = [[NSBundle mainBundle] URLForResource:@"夜的乐章.mp3" withExtension:nil]; AVPlayerItem *playerItem = [[AVPlayerItem alloc]initWithURL:url]; self.player = [[AVPlayer alloc] initWithPlayerItem:playerItem];}//开始播放和暂停播放- (IBAction)startOrPauseMusic:(UIButton *)sender { switch (sender.tag) { case 3:  [self.player play];  break; case 4:  [self.player pause];  break; default:  break; }}//切换歌曲- (IBAction)changeMusic:(UIButton *)sender { NSString *musicName =nil; switch (sender.tag) { case 1:  musicName = @"告白气球.mp3";  break; case 2:  musicName = @"周杰伦串烧.mp3";  break; default:  break; } NSURL *url = [[NSBundle mainBundle] URLForResource:musicName      withExtension:nil]; AVPlayerItem *playerItem = [[AVPlayerItem alloc] initWithURL:url]; [self.player replaceCurrentItemWithPlayerItem:playerItem];// 播放音乐 [self.player play];}- (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}@end