Replace the volume popup with a more subtle way to display the volume when the user changes it with the volume rocker.
Why and how
The iOS default popover showing the volume status that appears when the user clicks the volume rocker is a big obtrusive glossy view that covers the content shown. This library offers a way to show a more subtle indicator.
To make sure that the popover is not shown there are two conditions that need to be satisfied:
AVAudioSessionneeds to be active
MPVolumeViewneeds to be in the current view's hierarchy, and its alpha needs to be greater than 0
SubtleVolume is added to your view, an audio session is automatically started, and the view's alpha is set to
0.0001 in the hidden state.
Create an instance of
SubtleVolume with one of its convenience initializers, and set its position (you can either set the frame or let autolayout handle it):
let volume = SubtleVolume(style: .plain) volume.frame = CGRect(x: 0, y: 10, width: UIScreen.main.bounds.width, height: 4) // or wherever you like
Set the barTintColor property:
volume.barTintColor = .red
Set the animation type if needed (no animation will result in the indicator being always visible):
volume.animation = .slideDown
Add the view to your hierarchy:
To change the volume programmatically:
Or use the convenience methods:
try? volume.decreaseVolume(by: 0.2, animated: true) try? volume.increaseVolume(by: 0.2, animated: true)
Handle the background state
Once your app goes in background, you'll need to resume the session when it becomes active:
NotificationCenter.default.addObserver(volume, selector: #selector(SubtleVolume.resume), name: NSNotification.Name.UIApplicationDidBecomeActive, object: nil)
SubtleVolume automatically removes the observer on deinit.
- implement styles
- add test coverage
Copyright (c) 2017-2018 Andrea Mazzini. All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.