CODEWITHSUNDEEP
iphonexcodeuiwebview
Thib L
Thib L

Reputation: 714

Keep UIWebView playing music while App is in background

I think everything is in the title.

I have a UIWebiew that plays music, and when the user use the power or home button, putting the app in background, I want the music to keep playing.

Is it possible ?

Thank you for your help !

Upvotes: 1

Views: 2944

Answers (4)

Aliaksandr Bialiauski
Aliaksandr Bialiauski

Reputation: 1590

Yes it is possible. You need to do:

  1. Activate playback session:

@import AVFoundation; [[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error: nil];

  1. Add audio background mode in your Info.plist:

Required background modes: App plays audio or streams audio/video using AirPlay

<key>UIBackgroundModes</key> <array> <string>audio</string> </array>

Upvotes: 0

jklp
jklp

Reputation: 2101

A little tricky but it is possible. From the official Apple doc below:

https://developer.apple.com/library/ios/qa/qa1668/_index.html

You need to first declare in your plist the UIBackgroundModes for audio, and then write the following code snippet in your AppDelegate 

#import <AVFoundation/AVFoundation.h>
#import <AudioToolbox/AudioToolbox.h>

AVAudioSession *audioSession = [AVAudioSession sharedInstance];

NSError *setCategoryError = nil;
BOOL success = [audioSession setCategory:AVAudioSessionCategoryPlayback error:&setCategoryError];
if (!success) { /* handle the error condition */ }

NSError *activationError = nil;
success = [audioSession setActive:YES error:&activationError];
if (!success) { /* handle the error condition */ }

Now when you have audio playing from a UIWebView, you can go to the home screen, change to another app, or lock the screen and the audio will continue playing.

Upvotes: 3

Chris
Chris

Reputation: 450

You can't actually do this with a UIWebView, but you can still do it. This method still streams the audio off of an online resource via a URL. Here is some code to help you. Now, lets say, you want to stream the audio when the app exits for a video, then its very similar, but uses the MediaPlayer framework instead of AVAudioPlayer framework.

NSURL *url = [NSURL URLWithString:@"http://website.com/audio.mp3"];

NSData *data = [NSData dataWithContentsOfURL:url];

AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithData:data error:nil];

[audioPlayer play];

Upvotes: 5

Mick MacCallum
Mick MacCallum

Reputation: 130183

I don't believe this is possible, and even after checking UIWebView's documentation I only found the following three attributes related to media playback.

  allowsInlineMediaPlayback  property
  mediaPlaybackRequiresUserAction  property
  mediaPlaybackAllowsAirPlay  property

Unfortunately, none of them do this.

Upvotes: 1

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