avaudioplayer

问题 As of iOS 5 we have access to MPNowPlayingInfoCenter to display info in the lockscreen and in the multimedia controls on the multitasking bar. I have an app that plays local audio files. I want to display info like the artist's name, the album and the artwork on the lockscreen with MPNowPlayingInfoCenter , but the only way to do this (As far as I know) is to use MPMusicPlayerController and get nowPlayingItem ... The problem is that MPMusicPlayerController is used to play iPod Music only, and

问题 As of iOS 5 we have access to MPNowPlayingInfoCenter to display info in the lockscreen and in the multimedia controls on the multitasking bar. I have an app that plays local audio files. I want to display info like the artist's name, the album and the artwork on the lockscreen with MPNowPlayingInfoCenter , but the only way to do this (As far as I know) is to use MPMusicPlayerController and get nowPlayingItem ... The problem is that MPMusicPlayerController is used to play iPod Music only, and

问题 I am looking for a way to resume audio played by another application after my application plays its own sound with AVAudioPlayer. Right now, if I am listening to music and launch my application, it pauses the music, plays my sound, but doesn't resume the background music. Here is what i'm doing to generate the sound playback: myChime = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"chime" ofType:@"mp3"]] error:nil]; myChime

问题 In order to load a sound file, I have the following code in my application : - (id) init:(NSString*)a_filename ext:(NSString*)a_ext { ... NSString *t_soundFilePath = [CFileLoader getPathForResource:filename WithExtension:ext]; NSURL *t_fileURL = [[[NSURL alloc] initFileURLWithPath: t_soundFilePath] autorelease]; player = [[AVAudioPlayer alloc] initWithContentsOfURL: t_fileURL error: nil]; [player prepareToPlay]; ... } All the sounds that I load are in my bundle, so I would like to know if the

问题 This question already has answers here : How to change device Volume on iOS - not music volume (8 answers) How to change an iOS device volume programmatically? (4 answers) Closed 3 years ago . I am trying to create an alarm app and I have noticed that apps like Sleep Cycle will set your volume to max right before the alarm goes off, even if you had the volume at very low. I have tried using AVAudioPlayer and all I have seen with MPVolumeView is that the user must do it. Is there any way I can

问题 I've searched and I believe my problem is quite unique. I'm aware of the Simulator 5.1 bug when using AVAudioPlayer which isn't my problem. I'm running on a iOS 5.1 device. Here's my header file: #import <UIKit/UIKit.h> #import <Foundation/Foundation.h> #import <AVFoundation/AVAudioPlayer.h> -(IBAction)pushBell; @end and my implementation file: #import "BellViewController.h" @interface BellViewController () @end @implementation BellViewController -(IBAction)pushBell { NSString *soundPath =[

问题 So I have an app that plays a bunch of songs while the user can flip through a comic book. I use AVAudioPlayer and I have it set up to play the songs in a set order. So when one song finishes, the next one will play. This works flawlessly when the app is open. The problem occurs when the app is in the background. I set up the app to play in the background, and that works fine. So when the user presses the home screen the music continues to play. The problem occurs when the song ends, it is

问题 I am creating an application in which I'm using nstimer and avaudioplayer to play sound,but both sound and timer stops when phone is in deep sleep mode.how to solve this issue? here is the code to play audio -(void)PlayTickTickSound:(NSString*)SoundFileName { //Get the filename of the sound file: NSString *path = [NSString stringWithFormat:@"%@%@",[[NSBundle mainBundle] resourcePath],[NSString stringWithFormat:@"/%@",SoundFileName]];// @"/Tick.mp3"]; //Get a URL for the sound file NSURL

问题 I try to concatenate .wav audio files in swift. Here is my code : func merge(audio1: NSURL, audio2: NSURL) { var error:NSError? var ok1 = false var ok2 = false var documentsDirectory:String = paths[0] as! String //Create AVMutableComposition Object.This object will hold our multiple AVMutableCompositionTrack. var composition = AVMutableComposition() var compositionAudioTrack1:AVMutableCompositionTrack = composition.addMutableTrackWithMediaType(AVMediaTypeAudio, preferredTrackID:

问题 I am trying to create buttons that play single sound files and one button that stops all of the sounds that are currently playing. If the user clicks multiple buttons or the same button in a short amount of time, the app should be playing all of the sounds simultaneously. I have accomplished this without much difficulty using the System Sound Services of iOS. However, the System Sound Services play the sounds through the volume that the iPhone's ringer is set to. I am now trying to use the