AFSoundManager

iOS audio playing (both local and streaming) and recording made easy through a complete and block-driven Objective-C class. AFSoundManager uses AudioToolbox and AVFoundation frameworks to serve the audio. You can pick a local file or you can use a URL to stream the audio, the choice is up to you.

##Installation

AFSoundManager is available on CocoaPods so you can get it by adding this line to your Podfile:

pod 'AFSoundManager', '~> 1.1.1'

If you don't use CocoaPods, you will have to import these files into your project:

AFSoundManager.h
AFSoundManager.m
AFAudioRouter.h
AFAudioRouter.m

Also, you need to import the AudioToolbox framework and te AudioFoundation framework.

##Usage

First of all, make sure that you have imported the main class into the class where you are going to play audio.

#import "AFSoundManager.h"

Then, you only need to call one method to start playing your audio.

###Local playing If you need to play a local file, call -startPlayingLocalFileWithName:andBlock:

Example:

[[AFSoundManager sharedManager]startPlayingLocalFileWithName:@"filename.mp3" andBlock:^(int percentage, CGFloat elapsedTime, CGFloat timeRemaining, NSError *error) {

    if (!error)
    	//This block will be fired when the audio progress increases in 1%
    } else {
    	//Handle the error
    }
}];

###Audio streaming For remote audio, call -startStreamingRemoteAudioFromURL:andBlock:

Example:

[[AFSoundManager sharedManager]startStreamingRemoteAudioFromURL:@"http://www.example.com/audio/file.mp3" andBlock:^(int percentage, CGFloat elapsedTime, CGFloat timeRemaining, NSError *error) {

    if (!error)
    	//This block will be fired when the audio progress increases in 1%
    } else {
    	//Handle the error
    }
}];

###Control If you need to pause, resume or stop the current playing, guess what, there's a method for that!

[[AFSoundManager sharedManager]pause];
[[AFSoundManager sharedManager]resume];
[[AFSoundManager sharedManager]stop];
[[AFSoundManager sharedManager]restart];

For going back or forward, you have to specify the second where to continue playing the audio by calling -moveToSecond:

For example, if you need to move the audio to the second 288, call

[[AFSoundManager sharedManager]moveToSecond:288];

If you are using a UISlider, for example, and you need to work with values between 0.000000 and 1.000000, don't you worry, we got it:

[[AFSoundManager sharedManager]moveToSection:0.345680]; //That will move the audio to the 34.568% of its total progress

You can also change the speed rate of the playing.

[[AFSoundManager sharedManager]changeSpeedToRate:2.0];

The normal rate would be 1.0, while the half-speed playback would be 0.5 and the double speed playback 2.0

In order to change the volume, call -changeVolumeToValue: by passing a decimal number between 0.000000 (mute) and 1.000000 (maximum volume). Example:

[[AFSoundManager sharedManager]changeVolumeToValue:0.750000]; //This will put the volume at 75%

###Playing information When you start a new playing the blocks will retreive you some information about the playing every single percent. The info given will be the percentage played, the elapsed time and the time remaining. It will also retrieve a NSError so you can check if there's any error playing the audio.

If you want to get this information even if the playing is paused, -retrieveInfoForCurrentPlaying will give you a NSDictionary with all the information.

###Output manage AFSoundManager also lets you choose which device do you want to use to play the audio. I mean, even if you have your headphones plugged in, you can force the audio to play on the built-in speakers or play it through the headphones.

If the headphones (or any external speaker) are plugged in and you want to play it on the built-in speakers, call:

[[AFSoundManager sharedManager]forceOutputToBuiltInSpeakers];

If you want to play it through the default device (in this case the headphones or the external speaker) call

[[AFSoundManager sharedManager]forceOutputToDefaultDevice];

And if you want to check if the headphones, or a external speaker, are currently plugged in on the device, check it with -areHeadphonesConnected. Example:

if ([[AFSoundManager sharedManager]areHeadphonesConnected]) {
	//Headphones connected
} else {
	//Headphones NOT connected
}

##Recording audio

Start recording audio from the device's microphone is easy peasy!

[[AFSoundManager sharedManager]startRecordingAudioWithFileName:@"recording" andExtension:@"mp3" shouldStopAtSecond:25];

If you don't want recording to stop automatically, set shouldStopAtSecond as 0 or nil.

###Control the recording

AFSoundManager let's you perform several actions with your current recording:

[[AFSoundManager sharedManager]pauseRecording]; // Pauses the current recording
[[AFSoundManager sharedManager]resumeRecording]; // Resumes the current recording (if it's paused)
[[AFSoundManager sharedManager]stopAndSaveRecording]; // Stops the current recording and closes the file
[[AFSoundManager sharedManager]deleteRecording]; // Delete the current recording (perform this before stoping it)

Lastly, to get the current recording duration, call -timeRecorded which will return a NSTimeInterval object.

##License AFSoundManager is under MIT license so feel free to use it!

##Author Made by Alvaro Franco. If you have any question, feel free to drop me a line at alvarofrancoayala@gmail.com