JPSVolumeButtonHandler provides an easy block interface to hardware volume buttons on iOS devices. Perfect for camera apps! Used in JPSImagePickerController.

Features:

• Run blocks whenever a hardware volume button is pressed
• Volume button presses don't affect system audio
• Hide the HUD typically displayed on volume button presses
• Works even when the system audio level is at its maximum or minimum, even when muted

Add: https://github.com/jpsim/JPSVolumeButtonHandler.git (master branch) to your "Package Dependencies" in XCode.

Or add: .package(url: "https://github.com/jpsim/JPSVolumeButtonHandler.git", branch: "master") to your swift package file.

Add pod 'JPSVolumeButtonHandler' to your Podfile.

Drag the JPSVolumeButtonHandler folder into your project and link the MediaPlayer and AVFoundation frameworks to your project.

Set your blocks to be run when the volume buttons are pressed:

self.volumeButtonHandler = [JPSVolumeButtonHandler volumeButtonHandlerWithUpBlock:^{
	// Volume Up Button Pressed
} downBlock:^{
	// Volume Down Button Pressed
}];

To enable/disable the handler:

// Start
[self.volumeButtonHandler startHandler:YES]; 
// Stop
[self.volumeButtonHandler stopHandler];

To change audio session category (by default AVAudioSessionCategoryPlayAndRecord):

// Set category
self.volumeButtonHandler.sessionCategory = AVAudioSessionCategoryAmbient; 

To change the audio session category options (by default AVAudioSessionCategoryOptionMixWithOthers):

self.volumeButtonHandler.sessionOptions = AVAudioSessionCategoryOptionAllowBluetooth|AVAudioSessionCategoryOptionMixWithOthers;

Note that not all options are compatible with all category options. See AVAudioSession documentation for details.

This project is under the MIT license.