I am using AVAudioPlayer in my application. When I select a song it plays, but my problem is, it is not playing when the device gets locked.
You need to read Executing Code in the Background in Apple's documentation. If you set the UIBackgroundModes key in you app's Info.plist to audio, audio will keep playing while backgrounded.
See the sections Declaring the Background Tasks You Support and Playing Background Audio in the aforementioned documentation.
All we need to make music play in the background with AVAudioPlayer by two step:
Step 1: Choose Project -> Capabilities -> Enable Background Modes -> Select Audio Mode
Step 2: Use this code:
NSURL *soundURL = [[NSBundle mainBundle] URLForResource:#"demo" withExtension:#"mp3"];
avSound = [[AVAudioPlayer alloc] initWithContentsOfURL:soundURL error:nil];
[avSound setDelegate:self];
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback withOptions:AVAudioSessionCategoryOptionMixWithOthers error:nil];
[[AVAudioSession sharedInstance] setActive: YES error: nil];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
[avSound prepareToPlay];
[avSound setNumberOfLoops:-1];
[avSound setVolume:1.0];
Note that with this line the music can start even if the app was in the background:
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
As per my knowledge it is not possible to play sound when device locked. Can't you just disallow device to lock and alive apps active always until user close it manually ?
Related
I am using Opentok v2.0 in my iOS App for the chat/call purposes with other online users. Application has a feature of recording videos too when internet is absent so they can be uploaded later on. Everything is working accordingly but when I record videos after using Opentok features, UIImagePickerController opens Picture mode instead of Video mode. Here is my code of invoking camera for the video recording.
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
self.picker = [[UIImagePickerController alloc] init];
self.picker.sourceType = UIImagePickerControllerSourceTypeCamera;
self.picker.allowsEditing = NO;
self.picker.delegate = self;
self.picker.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie];
self.picker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModeVideo;
[self presentViewController:self.picker animated:YES completion:nil];
}
Is it Opentok bug or am I doing something wrong? Please share your thoughts
Regards
This is a bug as of OpenTok iOS SDK version 2.3.1. To work around the issue, you can use the code below after exiting your OpenTok Session and before opening the UIImagePickerController. I would suggest placing this in your sessionDidDisconnect method
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryRecord error:nil];
don't forget to set your Session object to nil for cleanup.
Now, if you want to be able to enter back into a Session and have proper audio, you will need to call:
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord
withOptions:AVAudioSessionCategoryOptionDefaultToSpeaker error:nil];
You can place this line of code before connecting with the Session Object's connectWithToken method.
I have made an audio player for my app using this guide
http://www.ymc.ch/en/building-a-simple-audioplayer-in-ios
The problem i am facing is that the audio stops when the phone gets locked and the audio becomes mute when the ringer is off.
Can someone guide me how to keep playing the audio even when the phone is locked.
Firstly you must set Required background mode to App plays audio
And write below codes in didFinishLaunching Method of AppDelegate.m
NSError *setCategoryErr = nil;
NSError *activationErr = nil;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:&setCategoryErr];
[[AVAudioSession sharedInstance] setActive:YES error:&activationErr];
iOS background audio not playing
I am useing AVPlayer to play setof songs from urls. I can play songs in background mode too. But the problem is in background mode the next song is not playing. It excecute the code and but [player play]; method is not working. But If play 1 song it plays to the end though it goes to the background mode.
Please help me
Thanks
You should use AVQueuePlayer instead. This is working fine for me.
Well, you probably have this figured out by now, but for anyone else who might come across this, try putting this in your viewDidLoad:
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
Assuming you have this :
NSError *setCategoryErr = nil;
NSError *activationErr = nil;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:&setCategoryErr];
[[AVAudioSession sharedInstance] setActive:YES error:&activationErr];
in your AppDelegate.m, under didFinishLaunch and your info.plist set up to play audio in the background.
Had the same problem, and this solved it for me.
I'm trying to get a custom sound working on a UILocalNotification, and I'm just getting no sound at all. If I use UILocalNotificationDefaultSoundName, I indeed get the default sound, but when the custom sound is specified, there is no sound, just the message. The sound is less than 30 seconds and it's in the right format, as far as I can tell. Here's a screenshot of the file info:
I've inspected the .app directory in XCode's DerivedData directory, and the alarm.caf file is at the root of the app, which I believe means it's in the bundle (right?).
I'm pretty sure this was working a while ago, and I've since upgraded Xcode. Maybe that is a hint?
I've also tried deleting/reinstalling/rebooting as mentioned in other answers. As you can see, I'm calling cancelAllLocalNotifications first.
Does anyone have any idea what could be wrong?
[[UIApplication sharedApplication] cancelAllLocalNotifications];
NSLog(#"installing alarm");
[arguments pop]; // name
[arguments pop]; // title
alarm.alertBody = [arguments pop];
alarm.fireDate = [[NSDate date] addTimeInterval:[[arguments pop] intValue]/1000];
//alarm.soundName = UILocalNotificationDefaultSoundName;
alarm.soundName = #"alarm.caf";
[[UIApplication sharedApplication] scheduleLocalNotification:alarm];
Your code seems to be good.
Try to clean your project, uninstall your app from your device/simulator, then re-install it. It could help maybe :)
I don't know the reason (and I didn't read documentation too), I just turned on the action property notification setHasAction:YES and the sound began to play.
please make sure that the iPhone is not in silent mode( because your code seems to be good )
just check the button on the side of your iPhone
Ok, so here's what happened. I forgot how the app handles the notification itself if it is still running. My code was only displaying a UIAlertView and not playing the sound. I'm not sure why it worked with the default sound. In any case, I added code like this to my AppDelegate:
- (void)application:(UIApplication *)application
didReceiveLocalNotification:(UILocalNotification *)notification
{
NSLog(#"didReceiveLocalNotification");
if (application.applicationState == UIApplicationStateActive) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"MarkMyTime"
message:notification.alertBody
delegate:self cancelButtonTitle:#"OK"
otherButtonTitles:nil];
NSString *soundFilePath = [[NSBundle mainBundle]
pathForResource:notification.soundName ofType:nil];
NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath];
AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL: fileURL error: nil];
[fileURL release];
player.delegate = self;
[player prepareToPlay];
[player play];
[alertView show];
if (alertView) {
[alertView release];
}
}
}
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
NSLog(#"Releasing player");
[player release];
}
This will show a UIAlertView and play the sound on the notification object. You also need to add the AVAudioPlayerDelegate interface to the AppDelegate to be able to assign the delegat to the player. I think if you are using ARC, this code could be simplified a bit.
#interface AppDelegate : PhoneGapDelegate <AVAudioPlayerDelegate> {
I'm not sure if this is the best approach, so feel free to chime in with any improvements.
Maybe you do not add the sound file (*.caf) in Xcode project: Build Phases/Copy Bundle Resources.
Your code is good, but check your iPhone setting
setting -> Notification center -> Your App -> Sound - > "On"
the sound should be "On".
So, to enable this, checked Inter App Audio at Capabilities in Targets of the application and it was Off Capabilities in Inter-app audio
change this to On.
Then local notification sound is working.
I am building an application for iPod.
When running it, the native iPod music app should continue play in background, but this is not happening.
I think it might have something to do with the sound that it is played by my app. For playing a short sound at a certain point, I am using AVAudioPlayer. The code looks like this:
NSString *path = [[NSBundle mainBundle] pathForResource:#"sound" ofType:#"mp3"];
NSLog(#"%#", path);
player = [[AVAudioPlayer alloc] initWithData:[NSData dataWithContentsOfFile:path] error:nil];
[player prepareToPlay];
[player play];
Could this interfere with the native music player on iPod?
And another thing. In my app, I have integrated AdWhirl and it appears to use AudioToolbox.
Thanks a lot,
George
You must set up your AVAudioSession to use the Ambient category. This tells the system that your sound should blend with any already playing sound. The best way to do this in iOS 4 is in the app delegate, like this:
- (void)applicationDidFinishLaunching:(UIApplication *)application {
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryAmbient error:nil];
// ...
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
// reactivate audio session
[[AVAudioSession sharedInstance] setActive: YES error: nil];
}
Read up on Audio Sessions. If your app produces sound, you always want be conscious of and in control of your audio session.