On “back to menu” button press there is a sound that should be played, but the sound is not playing because of the navigation to the main view controller. I tried doing this so it waits for the sound before going back, but it doesn’t work, what should I do?
if(appDelegate.disabledSoundEffects==0)
[self performSelectorOnMainThread:#selector(playButtonSound)
withObject:NULL waitUntilDone:true];
playButtonSound is the method that plays the sound obviously that’s the code for it in case I’m doing something wrong there
dispatch_queue_t dispatchQueue= dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_sync(dispatchQueue, ^(void){
NSBundle * mainBundle = [NSBundle mainBundle];
NSString * filePath = [mainBundle pathForResource:#"clickSound"
ofType:#"mp3"];
NSData * fileData=[NSData dataWithContentsOfFile:filePath];
NSError * error= nil;
self.audioPlayer=[[AVAudioPlayer alloc] initWithData:fileData error:&error];
if(self.audioPlayer!=nil)
self.audioPlayer.delegate=self;
[self.audioPlayer prepareToPlay];
[self.audioPlayer play];
});
As #Surjeet said "Instead of allocating AVAudioPlayer within the class. Allocate this in AppDelegate class, then create a method in appdelegate, and call that method from any class button click. This way your sound always plays”.
Related
Hi I'm playing the audio file in one view controller when i going the another view controller its still playing the audio how to pause the audio when we going back to another view controller.
NSString *audioPath = [[NSBundle mainBundle] pathForResource:#"audio" ofType:#"mp3" ];
NSURL *audioURL = [NSURL fileURLWithPath:audioPath];
NSError *error;
self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:audioURL error:&error];
[self.audioPlayer play];
Please tell where i have to put the pause code for the audio when I'm going for another view controller.
Thanks.
in your viewController dealloc method add code to stop your audioPlayer
- (void)dealloc {
if ([self.audioPlayer isPlaying])
[self.audioPlayer stop];
[super dealloc]; // call if you are not using ARC
}
You can also put the stop audio code in ViewWillDisappear method if you are going deeper into heirarchy
I'm writing an alarm clock app and I need to have the user select the chime to wake up to. I have a UITableView with a list of my sounds and when the user taps a sound I want it to play.
However, my sounds do not play unless I step over the call to AudioServicesPlaySystemSound (or if I put a breakpoint on the call to AudioServicesDisposeSystemSoundID which triggers after I hear the sound).
I had a theory that this was a main thread issue so I used performSelectorOnMainThread:
[self performSelectorOnMainThread:#selector(playWakeUpSound)
withObject:nil
waitUntilDone:true];
but that didn't help. (The value of waitUntilDone doesn't seem to matter.)
This question was promising but I checked and I'm only calling my method once.
This is only a guess, since I don't know what is in playWakeUpSound. If you are using AVAudioPlayer within that call and ARC, it might be because it is getting released. Store the instance of AVAudioPlayer as a member of the class and it should play.
#interface MyClass
{
AVAudioPlayer *player;
}
#end
Then in the implementation:
#implementation MyClass
- (void)playWakeUpSound {
// Assuming name and extension is set somewhere.
NSURL* musicFile = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:name ofType:extension]];
NSError* error = nil;
player = [[AVAudioPlayer alloc] initWithContentsOfURL:musicFile error:&error];
if (error) {
NSLog(#"%#", error.localizedDescription);
} else {
[player play];
}
}
#end
I have a ViewController : GLKViewController
with this code:
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *path = [[NSBundle mainBundle] pathForResource:#"background-music-aac" ofType:#"caf"];
NSURL *url = [NSURL URLWithString:path];
NSData *data = [NSData dataWithContentsOfURL:url];
AVAudioPlayer *audio = [[AVAudioPlayer alloc] initWithData:data error:nil];
audio.delegate = self;
audio.volume = 1.0;
audio.numberOfLoops = -1;
[audio prepareToPlay];
[audio play];
[self setupContext];
[self setupDisplay];
}
However... my graphical things working fine but the iOS simulator plays no music.
did I something wrong?
Assuming you are using ARC, the player is getting deallocated as soon your method returns to its caller. To quote from this answer:
ARC inserts a release call to the audio player, so it's deallocated right after leaving the method where it is created.
Try implementing the AVAudioPlayer as a property.
If your data is nil, the file was not properly added to the project. To add your file to the project, just drag and drop it and add it to your targets.
Also, AVAudioPlayer has a method, initWithContentsOfURL:, which you might want to use.
hi does anyone know how to add audio to buttons i have added the framework creatd an action that place the sounds but when i press the button no sound plays?
heres what i have done so far
-(void)buttonSound{
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:#"%#/ButtonSound.mp3", [[NSBundle mainBundle] resourcePath]]];
NSError *error;
audioPlayer2 = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
audioPlayer2.numberOfLoops = -1;
[audioPlayer2 play];
}
- (IBAction)backToMenu:(id)sender {
[self buttonSound];
[self.navigationController popViewControllerAnimated:YES];
}
For short system sounds, you should use something like:
SystemSoundID sound;
CFURLRef alertURL = CFBundleCopyResourceURL(CFBundleGetMainBundle(), (CFStringRef)#"ButtonSound", CFSTR("mp3"), NULL);
OSStatus status = AudioServicesCreateSystemSoundID(alertURL, &sound);
AudioServicesPlayAlertSound(sound);
your audioplayer is getting released by immediately popping up navigation controller.
if you remove this line:
[self.navigationController popViewControllerAnimated:YES];
you should be able to hear the audio file (if the path is correct).
I have an app which plays and controls music across different ViewControllers. To do this, I created two instances of AVAudioPLayer in the app delegate's DidFinishLaunchingMethod:
NSString *path = [[NSBundle mainBundle] pathForResource:#"minnie1" ofType:#"mp3"];
NSURL *path1 = [[NSURL alloc] initFileURLWithPath:path];
menuLoop =[[AVAudioPlayer alloc] initWithContentsOfURL:path1 error:NULL];
[menuLoop setDelegate:self];
menuLoop.numberOfLoops = -1;
[menuLoop play];
NSString *path2 = [[NSBundle mainBundle] pathForResource:#"minnie2" ofType:#"mp3"];
NSURL *path3 = [[NSURL alloc] initFileURLWithPath:path2];
gameLoop=[[AVAudioPlayer alloc] initWithContentsOfURL:path3 error:NULL];
gameLoop.numberOfLoops = -1;
[gameLoop setDelegate:self];
[gameLoop prepareToPlay];
After this I call it in various viewControllers, to stop or restart using code like:
- (IBAction)playGameLoop{
NSLog(#"Begin playGameLoop");
FPAppDelegate *app = (FPAppDelegate *)[[UIApplication sharedApplication] delegate];
if ([FPAVManager audioEnabled] == NO){
//DO NOTHING
}
else {
if (app.gameLoop.playing ==YES ) {
//DO NOTHING
}
else { [app.gameLoop play];
NSLog(#"End playGameLoop");
}
}
The audio files play fine the first time and they stop when asked to stop. Though, on iOS4 devices, they won't start replaying when called again.
Thanks!
From the docs:
Calling this method [stop] or allowing a sound to finish playing,
undoes the setup performed upon calling the play or prepareToPlay
methods.
The stop method does not reset the value of the currentTime property
to 0. In other words, if you call stop during playback and then call
play, playback resumes at the point where it left off.
Where you are looping the sounds, I would expect to be able to call stop and then call play. But I have fuzzy recollection of running into this myself. I found that calling pause, rather than stop, was a better solution. Especially since I could then call play again to resume play. Calling stop always seemed to require calling prepareToPlay again before calling play, at least in my experience.
It's possible that there were some changes in the API implemetation between iOS4.x and iOS5, too. You should check the API diffs on the Developer web site to be sure.