今天复习了下导航器，把播放器美化了下

//  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"#import "SetViewController.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；    UIImageView *imageView;}//播放进度的显示@property IBOutlet UIButton *start;@property IBOutlet UISlider *progressSlider;@property IBOutlet UILabel *musicTitle;@end@implementation ViewController//make backgrounder- (void)backgrouder{    imageView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 20, 320, 480)];    imageView.image=[UIImage imageNamed:@"1.jpg"];    [self.view addSubview:imageView];    self.view.backgroundColor=[UIColor greenColor];}//make button and label- (void)chuangJianBtnAndLabel{    //start/shop    _start=[UIButton buttonWithType:UIButtonTypeCustom];    _start.frame=CGRectMake(110, 400, 100, 35);    //[_start setTitle:@"播放" forState:UIControlStateNormal];    [_start setTitleColor:[UIColor redColor] forState:UIControlStateNormal];    [_start setImage:[UIImage  imageNamed:@"03.jpg"] forState:UIControlStateNormal];    [_start addTarget:self action:@selector(kaiOrStop) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:_start];        //next music Btn    UIButton *nextBtn=[UIButton buttonWithType:UIButtonTypeCustom];    nextBtn.frame=CGRectMake(210, 400, 100, 35);    [nextBtn setImage:[UIImage  imageNamed:@"02.jpg"] forState:UIControlStateNormal];    [nextBtn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];    [nextBtn addTarget:self action:@selector(next:) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:nextBtn];        //before music btn    UIButton *beforeBtn=[UIButton buttonWithType:UIButtonTypeCustom];    beforeBtn.frame=CGRectMake(10, 400, 100, 35);    [beforeBtn setImage:[UIImage  imageNamed:@"04.jpg"] forState:UIControlStateNormal];    [beforeBtn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];    [beforeBtn addTarget:self action:@selector(before:) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:beforeBtn];        UIButton *setBtn=[UIButton buttonWithType:UIButtonTypeCustom];    setBtn.frame=CGRectMake(220, 20, 100, 30);    [setBtn setTitle:@"setUp" forState:UIControlStateNormal];    [setBtn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];    [setBtn addTarget:self action:@selector(setBtn:) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:setBtn];    //[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:)];        //labelChuangJian    UILabel *shengYinlabel=[[UILabel alloc]initWithFrame:CGRectMake(14, 350, 80, 30)];    shengYinlabel.text=@"声音";    shengYinlabel.textColor=[UIColor yellowColor];    [self.view addSubview:shengYinlabel];        UILabel *progresslabel=[[UILabel alloc]initWithFrame:CGRectMake(14, 310, 80, 30)];    progresslabel.text=@"进程";    progresslabel.textColor=[UIColor yellowColor];    [self.view addSubview:progresslabel];        _musicTitle=[[UILabel alloc]initWithFrame:CGRectMake(14, 140, 280, 60)];    _musicTitle.textColor=[UIColor greenColor];    _musicTitle.textAlignment=NSTextAlignmentCenter;    _musicTitle.text=[NSString stringWithFormat:@"%@",_musiclist[_index]];    [self.view addSubview:_musicTitle];}- (void)setBtn:(UIButton *)sender{    SetViewController *setViewCter=[[SetViewController alloc]init];    setViewCter.view.backgroundColor=[UIColor blueColor];    [self.navigationController pushViewController:setViewCter animated:YES];}//下一首按钮- (void)next:(UIButton *)sender{        if (_index==_musiclist.count-1)    {        _index=0;    }    else    {        _index++;    }        [self play];    NSLog(@"下一首");}- (void)before:(UIButton *)sender{    if (_index==0)    {        _index=_musiclist.count-1;    }    else    {        _index--;    }        [self play];    NSLog(@"上一首");}//创建UISlider-(void)chuangJianSlider{    UISlider *shengYinSlider=[[UISlider alloc]initWithFrame:CGRectMake(50, 360, 250, 10)];    shengYinSlider.value=0.3;    shengYinSlider.tintColor=[UIColor blueColor];    shengYinSlider.maximumValue=1;    shengYinSlider.minimumValue=0;    [shengYinSlider addTarget:self action:@selector(shengYin:) forControlEvents:UIControlEventValueChanged];    [self.view addSubview:shengYinSlider];        _progressSlider=[[UISlider alloc]initWithFrame:CGRectMake(50, 320, 250, 10)];//    _progressSlider.value=http://www.mamicode.com/0.5;    _progressSlider.tintColor=[UIColor blueColor];    _progressSlider.maximumValue=1;    _progressSlider.minimumValue=0;    [_progressSlider addTarget:self action:@selector(progressSlider:) forControlEvents:UIControlEventValueChanged];    [self.view addSubview:_progressSlider];}//声音slider的动作方法-(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)    {        [_start setImage:[UIImage  imageNamed:@"03.jpg"] forState:UIControlStateNormal];        [player stop];    }    else    {        [_start setImage:[UIImage  imageNamed:@"05.jpg"] forState:UIControlStateNormal];        [player play];    }    NSLog(@"kaiShiTingZhi");}//开始播放设置(shunXuPlay)- (void)play{    NSString *name=_musiclist[_index];    //显示不同的图片    NSString *imageName=[NSString stringWithFormat:@"%d.jpg",_index+1];    imageView.image=[UIImage imageNamed:imageName];        //show music title    _musicTitle.text=[NSString stringWithFormat:@"%@",_musiclist[_index]];    NSString *path=[[NSBundle mainBundle] pathForResource:name ofType:@"mp3"];    //    NSData *avData=http://www.mamicode.com/[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=http://www.mamicode.com/[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=0;    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 backgrouder];    [self chuangJianBtnAndLabel];    [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)",@"Beyond-海阔天空",@"Declan Galbraith-Tell Me Why"];    [self play];    [player stop];}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end