如何从视图控制器在所有视图控制器中添加视图

Question

player View Controller Snap I am developing a Audio Player Application in swift 3 . I have a Player view controller which have some audio Control buttons and this view controller connected with others 'play list' view controller . From my home and other view controller I make this player view controller appears as 'present modally' . Now when I back/ go to another view without making player stop I need to add a common view that has 'Stop Button' and other audio controller and appears in all the view controllers. (It has Background Audio Compatibility) I'm a new comer in swift.Trying to figure out all the steps to do that. Any help is appreciated. Thanks!

Answer 1

This is more about UI design than it is about Swift. One possibility would be to create a container view controller that owns your audio controls and has a container view for the various other view controllers that you have to display.

(See: https://developer.apple.com/library/content/featuredarticles/ViewControllerPGforiPhoneOS/ImplementingaContainerViewController.html )

The container controller would manage the visibility of the controls and the amount of space allocated to them and to the content views.

Answer 2

One solution maybe to make the player view controller just a view instead of a view controller. You'd do that by making it a xib. From all your view controllers you could add this player xib as a subView to the view controller. This depends on how many view controllers you have. You'd also need a service that in the background updates the player view. This could be done with notifications, where notifications could be sent out from the player controller logic and the view controllers would receive the player updates notifications and in turn update the player view. A bit hard to explain in a paragraph.