音乐播放器(iOS简单版)

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今天给同学们带来音频，音乐，和视频播放相关的案例那么废话不多说直接上代码！先看示例：

// ZZMusic.h

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#warning - 对模型的处理借助MJExtension

#import <Foundation/Foundation.h>

@interface ZZMusic : NSObject

@property (copy,nonatomic) NSString *name;

@property (copy,nonatomic) NSString *filename;

@property (copy,nonatomic) NSString *singer;

@property (copy,nonatomic) NSString *singerIcon;

@property (copy,nonatomic) NSString *icon;

@property (nonatomic,assign, getter = isPlaying)BOOL playing;

@end

// ZZMusic.m

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import "ZZMusic.h"

@implementation ZZMusic

@end

// ZZMusicCell.h

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import <UIKit/UIKit.h>

@class ZZMusic;

@interface ZZMusicCell : UITableViewCell

+ (instancetype)cellWithTableView:(UITableView *)tableView;

@property (nonatomic,strong) ZZMusic *music;

@end

// ZZMusicCell.m

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import "ZZMusicCell.h"

#import "ZZMusic.h"

#import "Colours.h"

#import "UIImage+ZZ.h"

@interface ZZMusicCell()

/**

* 定时器

@property (nonatomic,strong) CADisplayLink *link;

@end

@implementation ZZMusicCell

- (CADisplayLink *)link

{

if (!_link) {

self.link = [CADisplayLinkdisplayLinkWithTarget:selfselector:@selector(update)];

}

return_link;

}

+ (instancetype)cellWithTableView:(UITableView *)tableView

{

staticNSString *ID = @"music";

ZZMusicCell *cell = [tableViewdequeueReusableCellWithIdentifier:ID];

if (cell ==nil) {

cell = [[ZZMusicCellalloc] initWithStyle:UITableViewCellStyleSubtitlereuseIdentifier:ID];

}

return cell;

}

- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier

{

if (self = [superinitWithStyle:style reuseIdentifier:reuseIdentifier]) {

self.backgroundColor = [UIColorclearColor];

self.selectedBackgroundView = [[UIImageViewalloc] initWithImage:[UIImageimageNamed:@"backgroundImage"]];

}

returnself;

}

- (void)setMusic:(ZZMusic *)music

{

_music = music;

self.textLabel.text = music.name;

self.detailTextLabel.text = music.singer;

self.imageView.image = [UIImagecircleImageWithName:music.singerIconborderWidth:2borderColor:[UIColorskyBlueColor]];

if (music.isPlaying) {

[self.linkaddToRunLoop:[NSRunLoopmainRunLoop] forMode:NSDefaultRunLoopMode];

} else {// 停止动画

[self.linkinvalidate];

self.link =nil;

self.imageView.transform =CGAffineTransformIdentity;

}

/**

* 8秒转一圈, 45°/s

- (void)update

{

// 1/60秒 * 45

// 规定时间内转动的角度 ==时间 *速度

CGFloat angle =self.link.duration *M_PI_4;

self.imageView.transform =CGAffineTransformRotate(self.imageView.transform, angle);

}

- (void)dealloc

{

// 移除定时器

[self.linkremoveFromRunLoop:[NSRunLoopmainRunLoop] forMode:NSDefaultRunLoopMode];

}

@end

// UIImage+ZZ.h

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import <UIKit/UIKit.h>

@interface UIImage (ZZ)

+ (instancetype)circleImageWithName:(NSString *)name borderWidth:(CGFloat)borderWidth borderColor:(UIColor *)borderColor;

@end

// UIImage+ZZ.m

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import "UIImage+ZZ.h"

@implementation UIImage (ZZ)

+ (instancetype)circleImageWithName:(NSString *)name borderWidth:(CGFloat)borderWidth borderColor:(UIColor *)borderColor

{

// 1.加载原图

UIImage *oldImage = [UIImageimageNamed:name];

// 2.开启上下文

CGFloat imageW = oldImage.size.width +2 * borderWidth;

CGFloat imageH = oldImage.size.height +2 * borderWidth;

CGSize imageSize =CGSizeMake(imageW, imageH);

UIGraphicsBeginImageContextWithOptions(imageSize,NO, 0.0);

// 3.取得当前的上下文

CGContextRef ctx =UIGraphicsGetCurrentContext();

// 4.画边框(大圆)

[borderColor set];

CGFloat bigRadius = imageW *0.5; //大圆半径

CGFloat centerX = bigRadius;// 圆心

CGFloat centerY = bigRadius;

CGContextAddArc(ctx, centerX, centerY, bigRadius,0, M_PI *2, 0);

CGContextFillPath(ctx);// 画圆

// 5.小圆

CGFloat smallRadius = bigRadius - borderWidth;

CGContextAddArc(ctx, centerX, centerY, smallRadius,0, M_PI *2, 0);

// 裁剪(后面画的东西才会受裁剪的影响)

CGContextClip(ctx);

// 6.画图

[oldImage drawInRect:CGRectMake(borderWidth, borderWidth, oldImage.size.width, oldImage.size.height)];

// 7.取图

UIImage *newImage =UIGraphicsGetImageFromCurrentImageContext();

// 8.结束上下文

UIGraphicsEndImageContext();

return newImage;

}

@end

// ZZAudioTool.h

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import <Foundation/Foundation.h>

#import <AVFoundation/AVFoundation.h>

@interface ZZAudioTool : NSObject

/**

* 播放器

@property(nonatomic,strong) AVAudioPlayer *player;

/**

* 创建单例

+ (instancetype)shareInstance;

/**

* 播放音效

* @param filename 音效文件名

+ (void)playSound:(NSString *)filename;

/**

* 销毁音效

* @param filename 音效文件名

+ (void)disposeSound:(NSString *)filename;

/**

* 播放音乐

* @param filename 音乐文件名

+ (AVAudioPlayer *)playMusic:(NSString *)filename;

/**

* 暂停音乐

* @param filename 音乐文件名

+ (void)pauseMusic:(NSString *)filename;

/**

* 停止音乐

* @param filename 音乐文件名

+ (void)stopMusic:(NSString *)filename;

/**

* 返回当前正在播放的音乐播放器

+ (AVAudioPlayer *)currentPlayingAudioPlayer;

@end

// ZZAudioTool.m

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import "ZZAudioTool.h"

@implementation ZZAudioTool

/**

* 存放所有的音频ID

* 字典: filename作为key, soundID作为value

static NSMutableDictionary *_soundIDDict;

/**

* 存放所有的音乐播放器

* 字典: filename作为key, audioPlayer作为value

static NSMutableDictionary *_audioPlayerDict;

/**

* 返回请求单例对象

+ (instancetype)shareInstance

{

staticZZAudioTool *audioTool;

staticdispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

if (audioTool ==nil) {

audioTool = [[ZZAudioToolalloc] init];

}

});

return audioTool;

}

/**

* 初始化

+ (void)initialize

{

_soundIDDict = [NSMutableDictionarydictionary];

_audioPlayerDict = [NSMutableDictionarydictionary];

// 设置音频会话类型

AVAudioSession *session = [AVAudioSessionsharedInstance];

[session setCategory:AVAudioSessionCategorySoloAmbienterror:nil];

[session setActive:YESerror:nil];

}

/**

* 播放音效

* @param filename 音效文件名

+ (void)playSound:(NSString *)filename

{

if (!filename)return;

// 1.从字典中取出soundID

SystemSoundID soundID = [_soundIDDict[filename]unsignedLongValue];

if (!soundID) {// 创建

// 加载音效文件

NSURL *url = [[NSBundlemainBundle] URLForResource:filenamewithExtension:nil];

if (!url)return;

// 创建音效ID

AudioServicesCreateSystemSoundID((__bridgeCFURLRef)url, &soundID);

// 放入字典

_soundIDDict[filename] =@(soundID);

}

// 2.播放

AudioServicesPlaySystemSound(soundID);

}

/**

* 销毁音效

* @param filename 音效文件名

+ (void)disposeSound:(NSString *)filename

{

if (!filename)return;

SystemSoundID soundID = [_soundIDDict[filename]unsignedLongValue];

if (soundID) {

// 销毁音效ID

AudioServicesDisposeSystemSoundID(soundID);

// 从字典中移除

[_soundIDDictremoveObjectForKey:filename];

}

/**

* 播放音乐

* @param filename 音乐文件名

+ (AVAudioPlayer *)playMusic:(NSString *)filename

{

if (!filename)return nil;

// 1.从字典中取出audioPlayer

AVAudioPlayer *audioPlayer =_audioPlayerDict[filename];

if (!audioPlayer) {// 创建

// 加载音乐文件

NSURL *url = [[NSBundlemainBundle] URLForResource:filenamewithExtension:nil];

if (!url)return nil;

// 创建audioPlayer

audioPlayer = [[AVAudioPlayeralloc] initWithContentsOfURL:urlerror:nil];

// 缓冲

[audioPlayer prepareToPlay];

// audioPlayer.enableRate = YES;

// audioPlayer.rate = 10.0;

// 放入字典

_audioPlayerDict[filename] = audioPlayer;

}

// 2.播放

if (!audioPlayer.isPlaying) {

[audioPlayer play];

}

return audioPlayer;

}

/**

* 暂停音乐

* @param filename 音乐文件名

+ (void)pauseMusic:(NSString *)filename

{

if (!filename)return;

// 1.从字典中取出audioPlayer

AVAudioPlayer *audioPlayer =_audioPlayerDict[filename];

// 2.暂停

if (audioPlayer.isPlaying) {

[audioPlayer pause];

}

/**

* 停止音乐

* @param filename 音乐文件名

+ (void)stopMusic:(NSString *)filename

{

if (!filename)return;

// 1.从字典中取出audioPlayer

AVAudioPlayer *audioPlayer =_audioPlayerDict[filename];

// 2.暂停

if (audioPlayer.isPlaying) {

[audioPlayer stop];

// 直接销毁

[_audioPlayerDictremoveObjectForKey:filename];

}

/**

* 返回当前正在播放的音乐播放器

+ (AVAudioPlayer *)currentPlayingAudioPlayer

{

for (NSString *filenamein _audioPlayerDict) {

AVAudioPlayer *audioPlayer =_audioPlayerDict[filename];

if (audioPlayer.isPlaying) {

return audioPlayer;

}

returnnil;

}

@end

// ZZMusicsController.h

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import <UIKit/UIKit.h>

@interface ZZMusicsController :UIViewController

@end

// ZZMusicsController.m

// 05-音乐播放器

// Created by 周昭 on 2017/3/20.

#import "ZZMusicsController.h"

#import "ZZMusic.h"

#import "ZZMusicCell.h"

#import "ZZAudioTool.h"

#import "MJExtension.h"

#import "NSString+ZZ.h"

#import <AVFoundation/AVFoundation.h>

#import <MediaPlayer/MediaPlayer.h>

@interface ZZMusicsController ()<UITableViewDelegate,UITableViewDataSource,AVAudioPlayerDelegate>

@property (nonatomic,strong) NSArray *musics;

@property (nonatomic,strong) AVAudioPlayer *currentPlayingAudioPlayer;

@property (nonatomic,weak) UITableView *tableView;

@property (nonatomic,weak) UIImageView *imgView;

@end

@implementation ZZMusicsController

#pragma mark - 懒加载

- (NSArray *)musics

{

if (!_musics) {

self.musics = [ZZMusicobjectArrayWithFilename:@"Musics.plist"];

}

return_musics;

}

- (void)viewDidLoad {

[superviewDidLoad];

// 0.设置标题&背景

[selfsetUpTitle];

// 1.初始化tableView

[selfsetUpTableView];

}

#pragma mark - setUp 初始化

- (void)setUpTableView

{

// 0.创建tableView

UITableView *tableView = [[UITableViewalloc] init];

tableView.delegate =self;

tableView.dataSource =self;

tableView.tableFooterView = [[UIViewalloc] init];

// 1.设置背景

UIImageView *imgView = [[UIImageViewalloc] init];

imgView.frame =self.view.frame;

imgView.image = [UIImageimageNamed:@"backgroundImage"];

tableView.backgroundView = imgView;

tableView.frame =CGRectMake(0,0, self.view.frame.size.width,self.view.frame.size.height);

[self.viewaddSubview:tableView];

self.tableView = tableView;

}

- (void)setUpTitle

{

// 0.设置标题

self.title =NSLocalizedString(@"音乐播放器",nil);

}

#pragma mark - Table view data source

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

returnself.musics.count;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

// 1.创建cell

ZZMusicCell *cell = [ZZMusicCellcellWithTableView:tableView];

// 2.设置cell的数据

cell.music =self.musics[indexPath.row];

return cell;

}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

return70;

}

- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath

{

// 停止音乐

ZZMusic *music =self.musics[indexPath.row];

[ZZAudioToolstopMusic:music.filename];

// 再次传递模型

ZZMusicCell *cell = (ZZMusicCell *)[tableViewcellForRowAtIndexPath:indexPath];

music.playing =NO;

cell.music = music;

}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

{

// 取出当前点击的cell

ZZMusicCell *cell = (ZZMusicCell *)[tableViewcellForRowAtIndexPath:indexPath];

// 取出要播放的音乐

ZZMusic *music =self.musics[indexPath.row];

if (music.playing) {

[ZZAudioToolpauseMusic:music.filename];

music.playing =NO;

cell.music = music;

} else {

AVAudioPlayer *audioPlayer = [ZZAudioToolplayMusic:music.filename];

audioPlayer.delegate =self;

self.currentPlayingAudioPlayer = audioPlayer;

// 在锁屏界面显示歌曲信息

[selfshowInfoInLockedScreen:music];

// 再次传递模型

music.playing =YES;

cell.music = music;

}

/**

* 在锁屏界面显示歌曲信息

- (void)showInfoInLockedScreen:(ZZMusic *)music

{

NSMutableDictionary *info = [NSMutableDictionarydictionary];

// 标题(音乐名称)

info[MPMediaItemPropertyTitle] = music.name;

// 作者

info[MPMediaItemPropertyArtist] = music.singer;

// 专辑

info[MPMediaItemPropertyAlbumTitle] = music.singer;

// 图片

info[MPMediaItemPropertyArtwork] = [[MPMediaItemArtworkalloc] initWithImage:[UIImageimageNamed:music.icon]];

[MPNowPlayingInfoCenterdefaultCenter].nowPlayingInfo = info;

}

#pragma mark - AVAudioPlayerDelegate

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

{

// 计算下一行

NSIndexPath *selectedPath = [self.tableViewindexPathForSelectedRow];

NSInteger nextRow = selectedPath.row +1;

if (nextRow ==self.musics.count) {

nextRow = 0;

}

#warning 停止上一首歌的转圈

// 再次传递模型

ZZMusicCell *cell = (ZZMusicCell *)[self.tableViewcellForRowAtIndexPath:selectedPath];

ZZMusic *music =self.musics[selectedPath.row];

music.playing =NO;

cell.music = music;

// 播放下一首歌

NSIndexPath *currentPath = [NSIndexPathindexPathForRow:nextRow inSection:selectedPath.section];

[self.tableViewselectRowAtIndexPath:currentPathanimated:YESscrollPosition:UITableViewScrollPositionTop];

[selftableView:self.tableViewdidSelectRowAtIndexPath:currentPath];

}

/**

* 音乐播放器被打断(打\接电话)

- (void)audioPlayerBeginInterruption:(AVAudioPlayer *)player

{

NSLog(@"audioPlayerBeginInterruption---被打断");

}

/**

* 音乐播放器停止打断(打\接电话)

- (void)audioPlayerEndInterruption:(AVAudioPlayer *)player withOptions:(NSUInteger)flags

{

NSLog(@"audioPlayerEndInterruption---停止打断");

[player play];

}

@end

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