音乐播放器

//

//  ViewController.m

//  播放器

//

//  Created by apple on 14-7-18.

//  Copyright (c) 2014年 apple. All rights reserved.

//



#import "ViewController.h"

#import "AVFoundation/AVFoundation.h"

@interface ViewController ()<AVAudioPlayerDelegate>

{

    AVAudioPlayer *player;//播放器

    NSArray *_musiclist;//歌曲名列表

    NSTimer *_timer;//定时器检查播放进度的动态送给进度tiao

    int _index;//歌曲的多少；

}

//播放进度的显示

@property IBOutlet UISlider *progressSlider;



@end

@implementation ViewController



//make button

- (void)chuangJianBtn

{

    UIButton *start=[UIButton buttonWithType:UIButtonTypeCustom];

    start.frame=CGRectMake(100, 300, 100, 30);

    [start setTitle:@"开/停" forState:UIControlStateNormal];

    [start setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

    [start addTarget:self action:@selector(kaiOrStop) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:start];

    

    UIButton *nextBtn=[UIButton buttonWithType:UIButtonTypeCustom];

    nextBtn.frame=CGRectMake(210, 300, 100, 30);

    [nextBtn setTitle:@"next" forState:UIControlStateNormal];

    [nextBtn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

    [nextBtn addTarget:self action:@selector(next:) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:nextBtn];

    

    UIButton *beforeBtn=[UIButton buttonWithType:UIButtonTypeCustom];

    beforeBtn.frame=CGRectMake(10, 300, 100, 30);

    [beforeBtn setTitle:@"before" forState:UIControlStateNormal];

    [beforeBtn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

    [beforeBtn addTarget:self action:@selector(before:) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:beforeBtn];

    //[self buttonRect:CGRectMake(210, 300, 100, 30) Title:@"next" TitleColor:[UIColor redColor] Action:@selector(next:)];

    //[self buttonRect:CGRectMake(0, 300, 100, 30) Title:@"before" TitleColor:[UIColor redColor] Action:@selector(before:)];

}



//下一首按钮

- (void)next:(UIButton *)sender

{

    if (_index==_musiclist.count)

    {

        _index=0;

    }

    else

    {

    _index++;

    }

    [self play];

    NSLog(@"下一首");

}



- (void)before:(UIButton *)sender

{

    if (_index==0)

    {

        _index=2;

    }

    else

    {

    _index--;

    }

    [self play];

    NSLog(@"上一首");

}



//按钮封装

- (UIButton *)buttonRect:(CGRect)rect Title:(NSString *)title TitleColor:(UIColor *)titleColor Action:(SEL)action

{

    UIButton *start=[UIButton buttonWithType:UIButtonTypeCustom];

    start.frame=rect;

    [start setTitle:title forState:UIControlStateNormal];

    [start setTitleColor: titleColor forState:UIControlStateNormal];

    [start addTarget:self action:@selector(action) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:start];

    return start;

}



//创建UISlider

-(void)chuangJianSlider

{

    UISlider *shengYinSlider=[[UISlider alloc]initWithFrame:CGRectMake(20, 200, 250, 10)];

    shengYinSlider.value=0.5;

    shengYinSlider.tintColor=[UIColor blueColor];

    shengYinSlider.maximumValue=1;

    shengYinSlider.minimumValue=0;

    [shengYinSlider addTarget:self action:@selector(shengYin:) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:shengYinSlider];

    

    _progressSlider=[[UISlider alloc]initWithFrame:CGRectMake(20, 100, 250, 10)];

    _progressSlider.value=0.5;

    _progressSlider.tintColor=[UIColor blueColor];

    _progressSlider.maximumValue=1;

    _progressSlider.minimumValue=0;

    [_progressSlider addTarget:self action:@selector(progressSlider:) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:_progressSlider];

}



//声音slider的动作fangf

-(void)shengYin:(UISlider *)sender

{

    player.volume=sender.value;

    NSLog(@"%f",sender.value);

}







//播放进度调节显示

- (void)progressSlider:(UISlider *)sender

{

    player.currentTime=sender.value*player.duration;

}

//播放完成代理

- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag

{

    _index++;

    if (_index==_musiclist.count) {

        _index=0;

    }

    [self play];

}



//开始停止按钮

- (void)kaiOrStop

{

    

    if(player.playing)

    {

        [player stop];

    }

    else

    {

        [player play];

    }

    NSLog(@"kaiShiTingZhi");



}



//开始播放设置

- (void)play

{

    NSString *name=_musiclist[_index];

    NSString *path=[[NSBundle mainBundle] pathForResource:name ofType:@"mp3"];

    //    NSData *avData=[NSData dataWithContentsOfFile:path];

    //    player=[[AVAudioPlayer alloc]initWithData:avData error:nil];

    //生成一个urld的对象

    NSURL *url=[NSURL fileURLWithPath:path];

    

    NSData *data=[NSData dataWithContentsOfURL:url];

    //把本地文件给播放器

    player=[[AVAudioPlayer alloc]initWithData:data error:nil];

    player.delegate=self;

    //改变速率

    //player.enableRate=YES;

    player.rate=4;

    //设置开始的时间

    player.currentTime=100;

    player.volume=0.5;

    [player prepareToPlay];

    //开始播放

    [player play];

    //定时器来调用progress方法

    _timer=[NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(progress:) userInfo:nil repeats:YES];

}



//改变进度条

- (void)progress:(UISlider *)sender

{

    self.progressSlider.value=player.currentTime/player.duration;

}



- (void)viewDidLoad {

    [super viewDidLoad];

    [self chuangJianBtn];

    [self chuangJianSlider];

    _musiclist=@[@"Beyond-光辉岁月",@"G.E.M.邓紫棋-你把我灌醉",@"G.E.M.邓紫棋-回忆的沙漏 (国)"];

    [self play];

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}



@end