I have set up my AVAudioSession to play music in the background
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
NSError *setCategoryError = nil;
[audioSession setCategory:AVAudioSessionCategoryPlayback error:&setCategoryError];
if (setCategoryError) {
}
NSError *activationError = nil;
[audioSession setActive:YES error:&activationError];
if (activationError) {
}
Also added 'Required background modes' in my plist file.
When I play a remote file and the iPhone enters the background the audio keeps playing as suspected. But when I play a song from the iPod inside my app (MPMediaItem URL) it won't continue to play in the background.
What am I missing?
You're not missing anything. When the user starts playing music from iPod, it will stop your app from playing any further audio.
If you mean something else, please leave a note and I'll update this answer.
Edit: You should start iPod music by setting the queue on the relevant instance of MPMusicPlayerController, and then sending it the -play message. If you use the URL provided by the MPMediaItem object with an AVAudioPlayer instance or similar, it will be routed differently and may not be able to continue playing in the background.
Related
I need my application audio to still run even though it goes into the background with device music audio. I try the codes suggestion in this page but my application still doesn't work.
Set Required background mode to App plays audio
Set Application does not run in background to YES
AppDelegate.m
NSError *setCategoryErr = nil;
NSError *activationErr = nil;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:&setCategoryErr];
[[AVAudioSession sharedInstance] setActive:YES error:&activationErr];
Here you can find a related question about it.
How to handle background audio playing while iOS device is locked or on another application?
I would suggest you to take a look a this tutorial:
http://mobile.tutsplus.com/tutorials/iphone/ios-sdk_background-audio/
It explains all the different steps to follow.
In my app at particular time i am alerting user with beep sound which i am playing using AVAudioPlayer.
Now i want this sound to be played even when app is in background. So i can achieve this by setting AVAudioSession category as AVAudioSessionCategoryPlayback and i also want that this sound should not stop the ipod music and i can do it with it setting AVAudioPlayer category AVAudioSessionCategoryAmbient.
But i want them together means sound should also play in background and it should also not stop the ipod music.
So how can i achieve this?
If it is not possible to play sound with AVAudioSessionCategoryAmbient category in background then any other workaround this?
Apologies if i am doing any mistake.
Thanks.
you need to add one row in your project.plist file Required background modes like bellow image and set it.
and put bellow code in to your project appdelegate didFinishLaunchingWithOptions
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryAmbient error:nil];
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
[[AVAudioSession sharedInstance] setActive: YES error: nil];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
NSError *error;
BOOL success = [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryAmbient error:&error];
if (!success) {
//Handle error
NSLog(#"%#", [error localizedDescription]);
} else {
// Yay! It worked!
}
its working for me hope its useful for you my frnd al the best.
UPDATE
You can't run AVAudioPlayer and the iPod player or MPMusicPlayer or MPMoviePlayer at the same time, without doing a bit more work. If you want easy, then use Audio Toolbox's System Sounds.
please refer this bellow link:-
iPhone AVAudioPlayer stopping background music
Please check bellow Link there are demo of Playing audio file in background. please check it
http://mobile.tutsplus.com/tutorials/iphone/ios-sdk_background-audio/
In my application I am using AVAudioRecorder for recording. Its works fine. but while I am recording in background if a device audio is played my recording get interrupted. I have the delegate function in my code. But its not getting called.
An app that plays audio continuously (even while the app is running in the background) can register as a background audio app by including the UIBackgroundModes key (with the value audio) in its Info.plist file. Apps that include this key must play audible content to the user while in the background.
Check below links
Link 1
You need to make couple of changes in plist file.
1) Set Required background mode to App plays audio
2) set Application does not run in background to YES.
3) Add following code to AppDelegate
NSError *setCategoryErr = nil;
NSError *activationErr = nil;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:&setCategoryErr];
[[AVAudioSession sharedInstance] setActive:YES error:&activationErr];
I am showing media hierarchy in the table view. When I tap on a song in the table view, it plays the song using MPMoviePlayerViewController. But when I click on the done button, the sound stops playing . I have created the following code:
NSURL *songUrl=[operationControl getSong:stringId];
mediaPlayerController = [[MPMoviePlayerViewController alloc] initWithContentURL:songUrl];
[self presentModalViewController:mediaPlayerController animated:YES];
[[mediaPlayerController moviePlayer] play];
I to want to browse the media hierarchy as well as play the song in the background. How can I achieve this?
You should start AVAudioSession and declare in main plist that your application plays music in background.
in didFinishLaunchingWithOptions:
// Setup audio session
AVAudioSession *sharedSession = [AVAudioSession sharedInstance];
[sharedSession setCategory:AVAudioSessionCategoryPlayback error:nil];
in applicationDidBecomeActive:
[sharedSession setActive:YES error:nil]; // FIXME: Error handling
In main plist add: Required background modes - App plays audio
It sounds like you didn't set up your Audio Session correctly. From
http://developer.apple.com/iphone/library/documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html
For example, when using the default audio session, audio in your application stops when the Auto-Lock period times out and the screen locks. If you want to ensure that playback continues with the screen locked, include the following lines in your application’s initialization code:
NSError *setCategoryErr = nil;
NSError *activationErr = nil;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:&setCategoryErr];
[[AVAudioSession sharedInstance] setActive:YES error:&activationErr];
The AVAudioSessionCategoryPlayback category ensures that playback continues when the screen locks. Activating the audio session puts the specified category into effect.
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 !
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];
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.
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.
Yes it is possible. You need to do:
Activate playback session:
#import AVFoundation;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error: nil];
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>