oc中用Avaudio做的简单播放器界面
1 建立工程，并将所用到的音频，图片等文件加入到工程中去。
2写入代码
1 // 2 // ViewController.m 3 // avaudio 4 // 5 // Created by apple on 14-7-18. 6 // Copyright (c) 2014年 无名. All rights reserved. 7 // 8 9 #import "ViewController.h" 10 #import <AVFoundation/AVFoundation.h> 11 12 @interface ViewController ()<AVAudioPlayerDelegate> 13 { 14 int index,di,i,ki,dd; 15 UIImageView *pic; 16 AVAudioPlayer *player; 17 NSArray *list,*soundpicture; 18 //定义一个定时器的变量 19 NSTimer *t1; 20 UIButton *but,*but4; 21 double a; 22 int random[100]; 23 } 24 @property (weak, nonatomic) IBOutlet UISlider *proceed; 25 @property (weak, nonatomic) IBOutlet UILabel *label2; 26 @property (weak, nonatomic) IBOutlet UISlider *sound; 27 @property (weak, nonatomic) IBOutlet UILabel *starttime; 28 @property (weak, nonatomic) IBOutlet UILabel *remaintime; 29 @property (weak, nonatomic) IBOutlet UIButton *model; 30 31 @end 32 33 34 @implementation ViewController 35 36 -(void)createbutton 37 { 38 //对歌曲图面这个空间初始化 39 pic=[[UIImageView alloc] initWithFrame:CGRectMake(20, 125, 280, 240)]; 40 [self.view addSubview:pic]; 41 //播放暂停按钮 42 but=[UIButton buttonWithType:UIButtonTypeCustom]; 43 but.frame=CGRectMake(125, 430,45,45); 44 [but setImage:[UIImage imageNamed:@"3"] forState:UIControlStateNormal]; 45 [but addTarget:self action:@selector(didplayer:) forControlEvents:UIControlEventTouchUpInside]; 46 [self.view addSubview:but]; 47 //下一曲按钮 48 UIButton *but1=[UIButton buttonWithType:UIButtonTypeCustom]; 49 but1.frame=CGRectMake(220, 430,45,45); 50 [but1 setImage:[UIImage imageNamed:@"6"] forState:UIControlStateNormal]; 51 [but1 addTarget:self action:@selector(didnext:) forControlEvents:UIControlEventTouchUpInside]; 52 [self.view addSubview:but1]; 53 //上一曲按钮 54 UIButton *but2=[UIButton buttonWithType:UIButtonTypeCustom]; 55 but2.frame=CGRectMake(30, 430,45,45); 56 [but2 setImage:[UIImage imageNamed:@"4"] forState:UIControlStateNormal]; 57 [but2 addTarget:self action:@selector(didprevious:) forControlEvents:UIControlEventTouchUpInside]; 58 [self.view addSubview:but2]; 59 //停止按钮 60 UIButton *but3=[UIButton buttonWithType:UIButtonTypeCustom]; 61 but3.frame=CGRectMake(125, 480,45,45); 62 [but3 setImage:[UIImage imageNamed:@"5"] forState:UIControlStateNormal]; 63 [but3 addTarget:self action:@selector(didstop:) forControlEvents:UIControlEventTouchUpInside]; 64 [self.view addSubview:but3]; 65 //声音控制按钮 66 but4=[UIButton buttonWithType:UIButtonTypeCustom]; 67 but4.frame=CGRectMake(45, 42,25,25); 68 [but4 setImage:[UIImage imageNamed:@"9"] forState:UIControlStateNormal]; 69 [but4 addTarget:self action:@selector(controlvoice:) forControlEvents:UIControlEventTouchUpInside]; 70 [self.view addSubview:but4]; 71 } 72 73 //停止播放，进度条为零，播放按钮为暂停图标 74 -(void)didstop:(UIButton *)sender 75 { 76 [player stop]; 77 player.currentTime=0; 78 [but setImage:[UIImage imageNamed:@"3"] forState:UIControlStateNormal]; 79 } 80 //播放或暂停 81 -(void)didplayer:(UIButton *)sender 82 { 83 if(~di) 84 { 85 [self createplay]; 86 [but setImage:[UIImage imageNamed:@"2"] forState:UIControlStateNormal]; 87 88 } 89 else 90 { 91 [player pause]; 92 [but setImage:[UIImage imageNamed:@"3"] forState:UIControlStateNormal]; 93 94 } 95 di=~di; 96 97 } 98 //下一曲 99 -(void)didnext:(UIButton *)sender 100 { 101 if(ki==0||ki==1) 102 { 103 if(index==list.count-1) 104 index=0; 105 else 106 index++; 107 } 108 else if (ki==2) 109 { 110 random[dd]=index; 111 index=arc4random()%15; 112 dd++; 113 } 114 //下一曲后进度条清零，这一步骤必须放在播放之前，即在[self createplay]之前 115 self.proceed.value=0; 116 [self createplay]; 117 } 118 //上一曲 119 -(void)didprevious:(UIButton *)sender 120 { 121 if(ki==0||ki==1) 122 { 123 if(index==0) 124 index=list.count-1;//一定要注意 减一，否则就溢出。 125 else index--; 126 } 127 if(ki==2) 128 { 129 if(dd!=0) 130 { 131 index=random[dd-1]; 132 dd--; 133 } 134 else index=arc4random()%15; 135 } 136 //上一曲后 进度条清零，，这一步骤必须放在播放之前，即在[self createplay]之前 137 self.proceed.value=0; 138 [self createplay]; 139 } 140 //播放文件的产生 141 -(void)createplay 142 { 143 NSString *name=list[index]; 144 NSString *picture=soundpicture[index]; 145 pic.image=[UIImage imageNamed:picture]; 146 147 //1获取资源文件的文件路径 148 NSString *path=[[NSBundle mainBundle] pathForResource:name ofType:@"mp3"]; 149 150 //2. 将文件读取到内存中 151 //NSData *data = [NSData dataWithContentsOfFile:path]; 152 //3. 创建一个播放器对象 153 //player = [[AVAudioPlayer alloc] initWithData:data error:nil]; 154 //网络地址用下面的方法 155 //[NSURL URLWithString:@"http://www.baidu.com"]; 156 157 //4从文件路径生产一个URL对象 158 NSURL *url=[NSURL fileURLWithPath:path]; 159 160 //AVAudioPlayer只能播放本地文件 161 player=[[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil]; 162 //????? 163 player.delegate=self; 164 player.volume=0.5; 165 166 //这条语句使暂停后在播放，会接着你暂停的点播放，而不是从头开始播放。 167 player.currentTime=self.proceed.value*player.duration; 168 169 //播放准备 170 [player prepareToPlay]; 171 [player play]; 172 173 //显示歌名 174 self.label2.text=name; 175 176 //时钟，每隔0.1s执行一次times 177 t1=[NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(times) userInfo:nil repeats:YES]; 178 } 179 //每隔0.1秒执行的函数 180 -(void)times 181 { 182 //滑动条的值等于歌曲正在播放时间的值/该歌曲的总时间。 183 //从而形成了进度条 184 self.proceed.value=player.currentTime/player.duration; 185 186 //显示开始的时间 187 int startminute=(int)player.currentTime/60; 188 int statesecond=(int)player.currentTime%60; 189 self.starttime.text=[NSString stringWithFormat:@"%02d:%02d",startminute,statesecond]; 190 191 //显示剩余时间 192 int remainminute=(int)(player.duration-player.currentTime)/60; 193 int remainsecond=(int)(player.duration-player.currentTime)%60; 194 self.remaintime.text=[NSString stringWithFormat:@"%02d:%02d",remainminute,remainsecond]; 195 196 } 197 198 - (void)viewDidLoad { 199 [super viewDidLoad]; 200 201 //将歌名存入list的数组中 202 list=@[@"陈奕迅一丝不挂",@"陈奕迅 - 淘汰",@"陈奕迅 - 单车",@"陈奕迅 - 不要说话",@"陈柏宇 - 你瞒我瞒",@"周杰伦 安静",@"王杰 - 不浪漫罪名",@"王力宏 Can you feel my world",@"林俊杰 不死之身 ",@"卡农 钢琴曲 ",@"海鸣威 老人与海 ",@"付辛博 这一刻，爱吧 ",@"林俊杰 第二天堂",@"庞龙 兄弟抱一下",@"孙燕姿 遇见"]; 203 204 //将片存入数组中去 205 soundpicture=@[@"一丝不挂",@"淘汰",@"单车",@"不要说话",@"你瞒我瞒",@"安静",@"不浪漫的罪名",@"can yon feel my world",@"不死之身",@"卡农",@"老人与海",@"这一刻爱吧",@"第二天堂",@"兄弟抱一下",@"遇见"]; 206 [self createbutton]; 207 208 //初始化进度条 209 self.proceed.value=0; 210 //arc4random 211 } 212 213 //歌曲播放完了执行 214 - (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag 215 { 216 if(ki==0) 217 { 218 index++; 219 if (index==list.count) 220 { 221 index=0; 222 } 223 } 224 //随机播放模式 225 else if(ki==2) 226 { 227 index=arc4random()%15; 228 } 229 //停止计时器 230 [t1 invalidate]; 231 //播放完后是进度条清零，这一步骤必须放在播放之前，即在[self createplay]之前 232 self.proceed.value=0; 233 [self createplay]; 234 } 235 236 - (void)didReceiveMemoryWarning { 237 [super didReceiveMemoryWarning]; 238 // Dispose of any resources that can be recreated. 239 } 240 241 //歌曲进度条控制 242 - (IBAction)proceeding:(UISlider *)sender { 243 player.currentTime=sender.value*player.duration; 244 } 245 246 //声音进度条的控制 247 - (IBAction)voice:(UISlider *)sender { 248 player.volume=sender.value; 249 250 } 251 //声音的静音与还原 252 - (IBAction)controlvoice:(UIButton *)sender { 253 254 if (~i) 255 { 256 player.volume=0; 257 [but4 setImage:[UIImage imageNamed:@"8"] forState:UIControlStateNormal]; 258 } 259 else 260 { 261 player.volume=self.sound.value; 262 [but4 setImage:[UIImage imageNamed:@"9"] forState:UIControlStateNormal]; 263 } 264 i=~i; 265 } 266 - (IBAction)nodel:(UIButton *)sender { 267 if (ki==0) { 268 [_model setTitle:@"单曲循环" forState:UIControlStateNormal]; 269 ki++; 270 } 271 else if(ki==1) 272 { 273 [_model setTitle:@"随机播放" forState:UIControlStateNormal]; 274 ki++; 275 } 276 else if(ki==2) 277 { 278 [_model setTitle:@"顺序播放" forState:UIControlStateNormal]; 279 ki=0; 280 } 281 } 282 283 @end
直接注意的时记得加入头文件
#import <AVFoundation/AVFoundation.h>
得到的结果为：
