音乐播放器
2020年02月15日
作者：佚名
下面是来客网 jb51.cc 通过网络收集整理的代码片段。
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#import "ZJViewController.h"
#import "ZjMusic.h"
@interface ZJViewController ()<AVAudioPlayerDelegate,UITabBarDelegate,UITableViewDataSource>
@end
#define kBtnHeight 50
#define kBtnWidth 60
@implementation ZJViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[self initView];
[self initData];
// NSLog(@"%@",self.lrcDict);
}
-(void)initData
{
ZjMusic *music1 = [[ZjMusic alloc] initWithName:@"Right Here Waiting(此情可待)" andType:@"mp3"];
ZjMusic *music2 = [[ZjMusic alloc] initWithName:@"Beyond-真的爱你" andType:@"mp3"];
ZjMusic *music3 = [[ZjMusic alloc] initWithName:@"刘德华-爱你一万年" andType:@"mp3"];
ZjMusic *music4 = [[ZjMusic alloc] initWithName:@"毛宁-涛声依旧" andType:@"mp3"];
ZjMusic *music5 = [[ZjMusic alloc] initWithName:@"你是我的眼" andType:@"mp3"];
ZjMusic *music6 = [[ZjMusic alloc] initWithName:@"星星" andType:@"mp3"];
ZjMusic *music7 = [[ZjMusic alloc] initWithName:@"月光爱人" andType:@"mp3"];
self.musicData = [[NSMutableArray alloc] init];
[self.musicData addObject:music1];
[self.musicData addObject:music2];
[self.musicData addObject:music3];
[self.musicData addObject:music4];
[self.musicData addObject:music5];
[self.musicData addObject:music6];
[self.musicData addObject:music7];
[self loadMusic:music5];
[self initLrc:music5];
self.musicNameLabel.text = music5.name;
}
#pragma mark 加载Music
-(void)loadMusic:(ZjMusic*)music
{
NSString *path = [[NSBundle mainBundle] pathForResource:music.name ofType:music.type];
NSURL *URL = [NSURL fileURLWithPath:path];
self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:URL error:nil];
self.audioPlayer.delegate = self;
self.audioPlayer.volume = 0.5;
self.volumeSlider.value = self.audioPlayer.volume;
[self.audioPlayer prepareToPlay];
[self returnTotalTime];
}
#pragma mark 音量slider自动移动，currentTime自动变换
-(void)currentTimeChange
{
[self returnCurrentTime];
self.durationlSlider.value = self.audioPlayer.currentTime/self.audioPlayer.duration;
NSLog(@"curtime ---->%d",(int)self.audioPlayer.currentTime);
// static int index = 0;
NSString *key = [NSString stringWithFormat:@"%d",(int)self.audioPlayer.currentTime];
NSString *lrc = [self.lrcDict objectForKey:key];
if(lrc){
// NSIndexPath *indexPath = [NSIndexPath indexPathForRow:index inSection:0];
// [self.lrcTableView selectRowAtIndexPath:indexPath animated:YES scrollPosition:UITableViewScrollPositionMiddle];
// index++;
self.musicLrcLable.text = lrc;
NSLog(@"index--->%@",lrc);
}
}
#pragma mark 上一首
-(void)previousSound
{
BOOL playFlag;
if(self.audioPlayer.playing){
playFlag = YES;
[self.audioPlayer stop];
}else{
playFlag = NO;
}
_soundIndex --;
if(self.soundIndex<0){
self.soundIndex = self.musicData.count-1;
}
ZjMusic *music = self.musicData[_soundIndex];
[self initLrc:music];
self.musicNameLabel.text = music.name;
[self loadMusic:music];
if(playFlag){
[self.audioPlayer play];
}
}
#pragma mark 下一曲
-(void)nextSound
{
BOOL playFlag;
if(self.audioPlayer.playing){
playFlag = YES;
[self.audioPlayer stop];
}else{
playFlag = NO;
}
_soundIndex ++;
if(self.soundIndex>self.musicData.count-1){
self.soundIndex = 0;
}
ZjMusic *music = self.musicData[_soundIndex];
[self initLrc:music];
self.musicNameLabel.text = music.name;
[self loadMusic:music];
if(playFlag){
[self.audioPlayer play];
}
}
#pragma mark 音量显示
-(void)showVolumeSlider
{
if(self.volumeSlider.hidden == NO){
self.volumeSlider.hidden = YES;
}else{
self.volumeSlider.hidden = NO;
}
[self performSelector:@selector(hiddenVolum) withObject:nil afterDelay:5];
}
#pragma mark 音量隐藏
-(void)hiddenVolum
{
self.volumeSlider.hidden = YES;
}
#pragma mark 播放暂停
-(void)palyAndPause:(UIButton*)button
{
NSString *imageName = @"play";
if(self.audioPlayer.playing){
[self.audioPlayer pause];
imageName = @"play";
[self.timer invalidate];
}else{
[self.audioPlayer play];
imageName = @"stop";
self.timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(currentTimeChange) userInfo:nil repeats:YES];
}
[button setImage:[UIImage imageNamed:imageName] forState:UIControlStateNormal];
[self returnTotalTime];
}
-(void)returnTotalTime
{
NSString *totalTime = [NSString stringWithFormat:@"%d:%d",(int)self.audioPlayer.duration/60,(int)self.audioPlayer.duration%60];
self.totalTime.text = totalTime;
}
#pragma mark 调节音量
-(void)volumeChange
{
self.audioPlayer.volume = self.volumeSlider.value;
[self returnCurrentTime];
}
-(void)returnCurrentTime
{
NSString *currentTime = [NSString stringWithFormat:@"%d:%d",(int)self.audioPlayer.currentTime/60,(int)self.audioPlayer.currentTime%60];
if((int)self.audioPlayer.currentTime%60<10){
currentTime = [NSString stringWithFormat:@"%d:0%d",(int)self.audioPlayer.currentTime%60];
}
self.currentTimeLabel.text = currentTime;
}
#pragma mark 调节时间
-(void)durationChange
{
self.audioPlayer.currentTime = self.durationlSlider.value*self.audioPlayer.duration;
}
- (void)dealloc {
[_audioPlayer release];
[_durationlSlider release];
[_volumeSlider release];
[_musicData release];
[_currentTimeLabel release];
[_musicNameLabel release];
[_totalTime release];
[_lrcDict release];
[_timeArray release];
[_lrcTableView release];
[super dealloc];
}
#pragma mark 初始化数据
-(void)initView
{
//当前时间
self.currentTimeLabel = [[UILabel alloc] initWithFrame:CGRectMake(20,35,40,20)];
self.currentTimeLabel.text = @"0:00";
self.currentTimeLabel.backgroundColor = [UIColor clearColor];
[self.view addSubview:self.currentTimeLabel];
//持续时间
self.durationlSlider = [[UISlider alloc] initWithFrame:CGRectMake(65,30,190,30)];
[self.durationlSlider addTarget:self action:@selector(durationChange) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:self.durationlSlider];
//总时间
self.totalTime = [[UILabel alloc] initWithFrame:CGRectMake(265,20)];
self.totalTime.text = @"0:00";
self.totalTime.backgroundColor = [UIColor clearColor];
[self.view addSubview:self.totalTime];
UIView *subView = [[UIView alloc] initWithFrame:CGRectMake(50,250,220,60)];
[self.view addSubview:subView];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
//上一曲
button.frame = CGRectMake(0,kBtnWidth,kBtnHeight);
[button setImage:[UIImage imageNamed:@"left"] forState:UIControlStateNormal];
[button addTarget:self action:@selector(previousSound) forControlEvents:UIControlEventTouchUpInside];
[subView addSubview:button];
//播放暂停
button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(80,kBtnHeight);
[button setImage:[UIImage imageNamed:@"play"] forState:UIControlStateNormal];
[button addTarget:self action:@selector(palyAndPause:) forControlEvents:UIControlEventTouchUpInside];
[subView addSubview:button];
//下一曲
button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(160,kBtnHeight);
[button addTarget:self action:@selector(nextSound) forControlEvents:UIControlEventTouchUpInside];
[button setImage:[UIImage imageNamed:@"right"] forState:UIControlStateNormal];
[subView addSubview:button];
//显示歌ci
self.musicLrcLable = [[UILabel alloc] initWithFrame:CGRectMake(0,400,320,44)];
self.musicLrcLable.textAlignment = NSTextAlignmentCenter;
self.musicLrcLable.backgroundColor = [UIColor greenColor];
[self.view addSubview:self.musicLrcLable];
//显示歌名
self.musicNameLabel = [[UILabel alloc] initWithFrame:CGRectMake(0,200,40)];
self.musicNameLabel.backgroundColor = [UIColor clearColor];
self.musicNameLabel.textAlignment = NSTextAlignmentCenter;
[self.view addSubview:self.musicNameLabel];
//音量
button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(10,390,kBtnHeight);
[button addTarget:self action:@selector(showVolumeSlider) forControlEvents:UIControlEventTouchUpInside];
[button setImage:[UIImage imageNamed:@"labalan"] forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:@"laba"] forState:UIControlStateHighlighted];
[self.view addSubview:button];
self.volumeSlider = [[UISlider alloc] initWithFrame:CGRectMake(-80,280,5)];
self.volumeSlider.minimumValue = 0;
self.volumeSlider.maximumValue = 1;
self.volumeSlider.hidden = YES;
self.volumeSlider.transform = CGAffineTransformMakeRotation(-95* M_PI/180);
[self.view addSubview:self.volumeSlider];
[self.volumeSlider addTarget:self action:@selector(volumeChange) forControlEvents:UIControlEventValueChanged];
}
-(void) initLrc:(ZjMusic*)music
{
NSLog(@"%@,%@",music.name,music.type);
self.timeArray = [[NSMutableArray alloc] init];
self.lrcDict = [[NSMutableDictionary alloc] init];
NSString *lrcPath = [[NSBundle mainBundle] pathForResource:music.name ofType:@"lrc"];
NSString *contentStr = [NSString stringWithContentsOfFile:lrcPath encoding:NSUTF8StringEncoding error:nil];
NSArray *array = [contentStr componentsSeparatedByString:@"n"];
for (int i= 0; i<array.count; i ++) {
NSString *lineStr = array[i];
NSArray *lineArray = [lineStr componentsSeparatedByString:@"]"];
NSString *lrcStr = [lineArray objectAtIndex:1];
if([lineArray[0] length]>5){
NSString *timeStr = [lineArray[0] substringWithRange:NSMakeRange(1,5)];
NSArray *timeArray = [timeStr componentsSeparatedByString:@":"];
NSInteger timeInt = [timeArray[0] intValue]*60 + [timeArray[1] intValue];
NSString *timeTostr = [NSString stringWithFormat:@"%d",timeInt];
[self.lrcDict setObject:lrcStr forKey:timeTostr];
[self.timeArray addObject:timeTostr];
}
}
// NSLog(@"%d",self.timeArray.count);
}
@end
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以上是来客网为你收集整理的音乐播放器全部内容，希望文章能够帮你解决音乐播放器所遇到的程序开发问题。
如果觉得来客网网站内容还不错，欢迎将来客网网站推荐给程序员好友。
