iso 开发学习--简易音乐播放器（基于iPhone4s屏幕尺寸）

三个按钮  一个进度条  

贴图（软件中部分图片，来自网络，如果侵犯了您的权益，请联系我，会立刻撤下）

核心代码

//
//  ViewController.m
//  08-10-MusicPlayer
//
//  Created by Ibokan on 15/8/10.
//  Copyright (c) 2015年 Crazy凡. All rights reserved.
//

#import "ViewController.h"
#import <AVFoundation/AVFoundation.h>

@interface ViewController ()
@property (nonatomic,strong)UIImageView * imageview;
@property (nonatomic,strong)UISlider *slider;
@property (nonatomic,strong)UIButton *buttonPlay;
@property (nonatomic,strong)UIButton *buttonPause;
@property (nonatomic,strong)UIButton *buttonStop;
@property (nonatomic,strong)AVAudioPlayer *player;
@property (nonatomic,strong)NSTimer *timer;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.imageview = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)];
    [self.imageview setImage:[UIImage imageNamed:@"bgimg.jpg"]];
    self.imageview.backgroundColor = [UIColor groupTableViewBackgroundColor];
    self.imageview.contentMode = UIViewContentModeScaleAspectFill;
    [self.view addSubview:self.imageview];
    //初始化背景
    
    self.slider = [[UISlider alloc]initWithFrame:CGRectMake(40, 350, 240, 10)];
    self.slider.value = 0.0;
    [self.view addSubview:self.slider];
    [self.slider addTarget:self action:@selector(updateValue) forControlEvents:UIControlEventValueChanged];
    
    self.buttonPlay = [[UIButton alloc]initWithFrame:CGRectMake(30, 400,60, 60)];
    [self.view addSubview:self.buttonPlay];
    [self.buttonPlay setBackgroundImage:[UIImage imageNamed:@"starten.png"] forState:UIControlStateNormal];
    [self.buttonPlay setBackgroundImage:[UIImage imageNamed:@"startun.png"] forState:UIControlStateDisabled];
    //初始化并插入A
    
    self.buttonPause = [[UIButton alloc]initWithFrame:CGRectMake(130, 400, 60, 60)];
    [self.view addSubview:self.buttonPause];
    self.buttonPause.enabled = false;
    [self.buttonPause setBackgroundImage:[UIImage imageNamed:@"stopen.png"] forState:UIControlStateNormal];
    [self.buttonPause setBackgroundImage:[UIImage imageNamed:@"stopun.png"] forState:UIControlStateDisabled];
    //初始化并插入B
    self.buttonStop = [[UIButton alloc]initWithFrame:CGRectMake(230, 400, 60, 60)];
    [self.view addSubview:self.buttonStop];
    self.buttonStop.enabled = false;
    [self.buttonStop setBackgroundImage:[UIImage imageNamed:@"pauseen.png"] forState:UIControlStateNormal];
    [self.buttonStop setBackgroundImage:[UIImage imageNamed:@"pauseun.png"] forState:UIControlStateDisabled];
    //初始化并插入C
    
    NSBundle *bundle = [NSBundle mainBundle];
    NSString *path = [bundle pathForResource:@"tianyaguoke" ofType:@"mp3"];
    //NSLog(@"%@",path);
    NSURL * url = [NSURL fileURLWithPath: path];
    self.player= [[AVAudioPlayer alloc]initWithContentsOfURL:url error:nil];
    [self.buttonPlay addTarget:self action:@selector(tapA) forControlEvents:UIControlEventTouchUpInside];
    [self.buttonPause addTarget:self action:@selector(tabB) forControlEvents:UIControlEventTouchUpInside];
    [self.buttonStop addTarget:self action:@selector(tabC) forControlEvents:UIControlEventTouchUpInside];
    
}
- (void)tapA
{
    self.buttonPlay.enabled = false;
    self.buttonPause.enabled = true;
    self.buttonStop.enabled = true;
    [self.player play];
    self.timer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timeadd) userInfo:nil repeats:YES];
}
- (void)tabB
{
    self.buttonPlay.enabled = true;
    self.buttonPause.enabled = false;
    self.buttonStop.enabled = false;
    [self.player stop];
    self.player.currentTime = 0 ;
}
- (void)tabC
{
    
    self.buttonPlay.enabled = true;
    self.buttonPause.enabled = true;
    self.buttonStop.enabled = false;
    [self.player pause];
}
- (void)timeadd
{
//    double alltime = self.player.duration;
//    double now = self.player.currentTime;
    self.slider.value = self.player.currentTime/self.player.duration;
}
- (void)updateValue
{
    self.player.currentTime = self.player.duration * self.slider.value;
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

知识点总结：

　　1、[self.buttonPlay setBackgroundImage:[UIImage imageNamed:@"starten.png"] forState:UIControlStateNormal];

　　//为按钮添加图片

　　2、[self.slider addTarget:self action:@selector(updateValue) forControlEvents:UIControlEventValueChanged];

　　//slider(进度条)添加回调方法

　　3、self.timer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timeadd) userInfo:nil repeats:YES];

　　//NStimer的使用

　　4、NSBundle *bundle = [NSBundle mainBundle];

   　　 NSString *path = [bundle pathForResource:@"tianyaguoke" ofType:@"mp3"];

    　　NSURL * url = [NSURL fileURLWithPath: path];

    　　self.player= [[AVAudioPlayer alloc]initWithContentsOfURL:url error:nil];

　　//NSBundle、NSURL 为AVAudio 添加路径

　　5、self.imageview = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)];

    　　[self.imageview setImage:[UIImage imageNamed:@"bgimg.jpg"]];

    　　self.imageview.backgroundColor = [UIColor groupTableViewBackgroundColor];

　　//UIImageView  初始化

　　6、self.imageview.contentMode = UIViewContentModeScaleAspectFill;

　　self.imageview.contentMode = UIViewContentModeScaleAspectFit;

　　self.imageview.contentMode = UIViewContentModeScaleToFill;

　　//UIImageViewv  图片显示方式设定：比例充满  比例缩放  拉伸充满

　　7、self.player.currentTime；self.player.duration

　　//音乐播放器时间（当前播放的时间，时间总长）

点我下载源码     因为文件大小问题，文件中的音频被我删掉了，另附文件布局，我想大家可以看懂！