How to play audio from url in objective-C

Question

This is my code

 NSURL *url = [NSURL URLWithString:recentActivity.url];
 NSData *data = [NSData dataWithContentsOfURL:url];
 AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithData:data error:nil];
 [audioPlayer play];

and it's not playing audio

yes sir, i use, "https://www.soundhelix.com/examples/mp3/SoundHelix-Song-2.mp3" — Harimohan Agrawal, Jan 19 '18 at 05:52
But sir, NSURL *url = [NSURL URLWithString:recentActivity.url]; //Add any link of audio file which you want to play playerItem = [AVPlayerItem playerItemWithURL:[NSURL URLWithString:recentActivity.url]]; // add url to playerItem player = [AVPlayer playerWithPlayerItem:playerItem]; // add player item to AVAudioPlayer player = [AVPlayer playerWithURL:url]; [player play]; Using this its works. Thanks. — Harimohan Agrawal, Jan 19 '18 at 05:55

Dixit Akabari · Answer 1 · 2018-01-19T09:02:03.117

Try this. It will work fine.

NSURL *url = [NSURL URLWithString:url];    
self.avAsset = [AVURLAsset URLAssetWithURL:url options:nil];    
self.playerItem = [AVPlayerItem playerItemWithAsset:avAsset];    
self.audioPlayer = [AVPlayer playerWithPlayerItem:playerItem];    
[self.audioPlayer play];

For Swift 3.0

var player: AVAudioPlayer!
var slider: UISlider!

@IBAction func play(_ sender: Any) {
    var url = URL(fileURLWithPath: Bundle.main.path(forResource: "sound", ofType: ".mp3")!)
    var error: Error?
    do {
        player = try AVAudioPlayer(contentsOf: url)
    }
    catch let error {
    }
    if player == nil {
        print("Error: \(error)")
    }
    player.prepareToPlay()
    slider.maximumValue = Float(player.duration)
    slider.value = 0.0
    Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(self.updateTime), userInfo: nil, repeats: true)
    player.play()
}

func updateTime(_ timer: Timer) {
    slider.value = Float(player.currentTime)
}

@IBAction func slide(_ slider: UISlider) {
    player.currentTime = TimeInterval(slider.value)
}

i have uislider, and my my song in runnning but when i click on slider then i want to change the time of playing accroding to slider click. how i can set ? — Harimohan Agrawal, Jan 19 '18 at 08:14

Jayachandra A · Answer 2 · 2018-01-19T08:43:53.733

0

You can try this small piece of code to play audio from an URL

Create a new helper calls and add the following code to PlayerHelper.h

    @interface PlayerHelper : NSObject
{
    AVPlayer *player;
}

+ (PlayerHelper*)shared;

- (BOOL)playAudio:(NSString*)urlPath;

- (void)stopPlayer;

- (void)pausePlayer;

- (void)seekTo:(float)time;

- (float)duration;
@end

Add following code to PlayerHelper.m file

 #import "PlayerHelper.h"

@implementation PlayerHelper
+ (PlayerHelper*)shared{
    static PlayerHelper *helper = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        helper = [[PlayerHelper alloc] init];
    });
    return helper;
}

- (void)stopPlayer{
    if (player != nil) {
        player = nil;
    }
}

- (void)pausePlayer{
    [player pause];
}

- (BOOL)playAudio:(NSString*)urlPath{
    NSURL *URL = [NSURL URLWithString:urlPath];
    NSError *error = nil;
    if (player == nil){
        player = [[AVPlayer alloc] initWithURL:URL];
    }
    if (error == nil) {
        [player play];
        return TRUE;
    }
    NSLog(@"error %@",error);
    return FALSE;
}

- (void)seekTo:(float)time{
    [player seekToTime:CMTimeMake(time, 1)];
}

- (float)duration{
    return player.currentTime.value;
    return 0;
}
@end

Usage,

NSString *url = @"https://isongs/media/rapon.mp3";
[[PlayerHelper shared] playAudio:url];

edited Jan 19 '18 at 08:43

answered Jan 19 '18 at 06:21

Jayachandra A

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but i have used Uislider, and i want to also, play,pause, show timing continiously etc. so how can i manager UISlider. – Harimohan Agrawal Jan 19 '18 at 06:27
or any third party which have all thing, please let me know. – Harimohan Agrawal Jan 19 '18 at 06:30
@HarimohanAgrawal check it, I have updated with seek functionality – Jayachandra A Jan 19 '18 at 06:38
I have used you code, but audio not play. – Harimohan Agrawal Jan 19 '18 at 06:49
in this line player = [[AVAudioPlayer alloc] initWithContentsOfURL:URL error:&error]; player is nil. – Harimohan Agrawal Jan 19 '18 at 06:54
and it return false. – Harimohan Agrawal Jan 19 '18 at 06:54
in error Printing description of error: Error Domain=NSOSStatusErrorDomain Code=2003334207 "(null)" – Harimohan Agrawal Jan 19 '18 at 06:56
@HarimohanAgrawal which means your audio URL is not a valid one, can you share me URL I will check – Jayachandra A Jan 19 '18 at 07:18
"https://www.soundhelix.com/examples/mp3/SoundHelix-Song-2.mp3" – Harimohan Agrawal Jan 19 '18 at 07:20
https is also added, but not show on stackoverflow. – Harimohan Agrawal Jan 19 '18 at 07:22
i have also check my url on google, and when i used NSURL *url = [NSURL URLWithString:recentActivity.url]; //Add any link of audio file which you want to play playerItem = [AVPlayerItem playerItemWithURL:[NSURL URLWithString:recentActivity.url]]; // add url to playerItem player = [AVPlayer playerWithPlayerItem:playerItem]; // add player item to AVAudioPlayer player = [AVPlayer playerWithURL:url]; [player play]; the song is play. but for seek bar i asking the functionality. – Harimohan Agrawal Jan 19 '18 at 07:23
updated, if you want to implement slider functionality, use seekTo method. i hope this will helps – Jayachandra A Jan 19 '18 at 08:44

score 0 · Answer 3 · answered Jan 19 '18 at 07:20

The problem with your code (assuming that you're using ARC) is that you're allocating AVAudioPlayer and then you send play message but as soon as your method returns the ARC deallocates the AVAudioPlayer and hence you won't be able to listen any sound. To resolve this issue please retain your AVAudioPlayer instance either in an ivar or in some property. Below is the example of an ivar

@implementation ViewController {
  AVAudioPlayer *audioPlayer;
}

- (void)viewDidLoad {
  [super viewDidLoad];
  NSURL *url = [NSURL URLWithString:@"https://www.soundhelix.com/examples/mp3/SoundHelix-Song-2.mp3"];
  NSData *data = [NSData dataWithContentsOfURL:url];
  audioPlayer = [[AVAudioPlayer alloc] initWithData:data error:nil]; // Now we are assigning it in an instance variable thus ARC will not deallocate it.
  [audioPlayer play];
}


@end

How to play audio from url in objective-C

3 Answers3