要给工程中添加音频,首先要导入音频的框架 AVFoundation.framework
然后新建一个类继承于UIViewController, 我这里就叫FirstVC.
1 //
2 // AppDelegate.m
3 // YinPinShiPin
4 //
5 // Created by chulijian on 14-11-8.
6 // Copyright (c) 2014年 company. All rights reserved.
7 //
8
9 #import "AppDelegate.h"
10 #import "FirstVC.h"
11 @implementation AppDelegate
12
13
18
19 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
20 {
21 self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
22 // Override point for customization after application launch.
23
24 FirstVC *firstVC = [[FirstVC alloc] init];
25 self.window.rootViewController = firstVC;
27
28 self.window.backgroundColor = [UIColor whiteColor];
29 [self.window makeKeyAndVisible];
30 return YES;
31 }
然后在FirstVC.h中导入AVFoundation框架
1 //
2 // FirstVC.h
3 // YinPinShiPin
4 //
5 // Created by chulijian on 14-11-8. 6 // Copyright (c) 2014年 company. All rights reserved. 7 //
8 //
9 //
#import <UIKit/UIKit.h>
10
11 //要想使用封装好的音频类,导入框,导入类头文件,缺一不可;
12 #import <AVFoundation/AVFoundation.h>
13
14 @interface FirstVC : UIViewController<AVAudioPlayerDelegate>
15 {
16 AVAudioPlayer *avAudioPlayer; //播放器player17
UIProgressView *progressV; //播放进度18
UISlider *volumeSlider; //声音控制19
NSTimer *timer; //监控音频播放进度20
}
21
22 @end
然后在FirstVC.m里的viewDidLoad方法里填写代码 你需要导入一个音频才可以播放 像添加图片一样,直接拖到工程里就可以了
1 - (void)viewDidLoad
2 {
3 [super viewDidLoad];
4 // Do any additional setup after loading the view.
5 //初始化三个button
6 UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
7 [button setFrame:CGRectMake(100, 100, 60, 40)];
8 [button setTitle:@"Play" forState:UIControlStateNormal];
9 [button addTarget:self action:@selector(play) forControlEvents:UIControlEventTouchUpInside];
10 [self.view addSubview:button];
11
12 UIButton *button1 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
13 [button1 setFrame:CGRectMake(100, 150, 60, 40)];
14 [button1 setTitle:@"pause" forState:UIControlStateNormal];
15 [button1 addTarget:self action:@selector(pause) forControlEvents:UIControlEventTouchUpInside];
16 [self.view addSubview:button1];
17
18 UIButton *button2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
19 [button2 setFrame:CGRectMake(100, 200, 60, 40)];
20 [button2 setTitle:@"stop" forState:UIControlStateNormal];
21 [button2 addTarget:self action:@selector(stop) forControlEvents:UIControlEventTouchUpInside];
22 [self.view addSubview:button2];
23
24 //从budle路径下读取音频文件 轻音乐 - 萨克斯回家 这个文件名是你的歌曲名字,mp3是你的音频格式
25 NSString *string = [[NSBundle mainBundle] pathForResource:@"轻音乐 - 萨克斯回家" ofType:@"mp3"];
26 //把音频文件转换成url格式
27 NSURL *url = [NSURL fileURLWithPath:string];
28 //初始化音频类 并且添加播放文件
29 avAudioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
30 //设置代理
31 avAudioPlayer.delegate = self;
32
33 //设置初始音量大小
34 // avAudioPlayer.volume = 1;
35
36 //设置音乐播放次数 -1为一直循环
37 avAudioPlayer.numberOfLoops = -1;
38
39 //预播放
40 [avAudioPlayer prepareToPlay];
41
42 //初始化一个播放进度条
43 progressV = [[UIProgressView alloc] initWithFrame:CGRectMake(20, 50, 200, 20)];
44 [self.view addSubview:progressV];
46
47 //用NSTimer来监控音频播放进度
48 timer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self
49 selector:@selector(playProgress)
50 userInfo:nil repeats:YES];
51 //初始化音量控制
52 volumeSlider = [[UISlider alloc] initWithFrame:CGRectMake(20, 70, 200, 20)];
53 [volumeSlider addTarget:self action:@selector(volumeChange)
54 forControlEvents:UIControlEventValueChanged];
55 //设置最小音量
56 volumeSlider.minimumValue = 0.0f;
57 //设置最大音量
58 volumeSlider.maximumValue = 10.0f;
59 //初始化音量为多少
60 volumeSlider.value = 5.0f;
61
62 [self.view addSubview:volumeSlider];
64
65 //声音开关控件(静音)
66 UISwitch *swith = [[UISwitch alloc] initWithFrame:CGRectMake(100, 20, 60, 40)];
67 [swith addTarget:self action:@selector(onOrOff:) forControlEvents:UIControlEventValueChanged];
68 //默认状态为打开
69 swith.on = YES;
70 [self.view addSubview:swith];
72 }
相应的自定义方法代码如下
1 //播放
2 - (void)play
3 {
4 [avAudioPlayer play];
5 }
6 //暂停
7 - (void)pause
8 {
9 [avAudioPlayer pause];
10 }
11 //停止
12 - (void)stop
13 {
14 avAudioPlayer.currentTime = 0; //当前播放时间设置为0
15 [avAudioPlayer stop];
16 }
17 //播放进度条
18 - (void)playProgress
19 {
20 //通过音频播放时长的百分比,给progressview进行赋值;
21 progressV.progress = avAudioPlayer.currentTime/avAudioPlayer.duration;
22 }
23 //声音开关(是否静音)
24 - (void)onOrOff:(UISwitch *)sender
25 {
26 avAudioPlayer.volume = sender.on;
27 }
28
29 //播放音量控制
30 - (void)volumeChange
31 {
32 avAudioPlayer.volume = volumeSlider.value;
33 }
34
35 //播放完成时调用的方法 (代理里的方法),需要设置代理才可以调用
36 - (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
37 {
38 [timer invalidate]; //NSTimer暂停 invalidate 使...无效;
39 }
demo稍后会整理上传
当然,你也可以再定义一个UISlider来控制播放进度.