Bringing a subview to be in front of all other views

Question

I am working on integrating an ad provider into my app currently  I wish to place a fading message in front of the ad when the ad displays but have been completely unsuccessful   I made a function which adds a subview to my current view and tries to bring it to the front using   self view bringSubviewToFront mySubview    The function fires on notification that the ad loaded  the notification is from the adprovider s SDK   However  my subview does not end up in front of the ad  I imagine this is made purposely difficult by the ad provider  but I wish to do it regardless  I am currently discussing with the provider whether or not this can be allowed  But for the time being  I just want to see if it s even possible   Is there anyway I can force a subview of mine to be the top-most view such that it will not be obstructed by anything

User · Accepted Answer

What if the ad provider s view is not added to self view but to something like  UIApplication sharedApplication  keyWindow   Try something like     UIApplication sharedApplication  keyWindow addSubview yourSubview    or    UIApplication sharedApplication  keyWindow bringSubviewToFront yourSubview

User · Answer

In c   View BringSubviewToFront childView          YourView Layer ZPosition   1  both should work

User · Answer

Let me make a conclusion  In Swift 5  You can choose to addSubview to keyWindow  if you add the view in the last  Otherwise  you can bringSubViewToFront   let view   UIView   UIApplication shared keyWindow  addSubview view  UIApplication shared keyWindow  bringSubviewToFront view    You can also set the zPosition  But the drawback is that you can not change the gesture responding order    view layer zPosition   1

User · Answer

As far as i experienced zposition is a best way       self view layer zPosition   1

User · Answer

In Swift 4 2  UIApplication shared keyWindow  bringSubviewToFront yourView    Source  https   developer apple com documentation uikit uiview 1622541-bringsubviewtofront declarations

User · Answer

try this   self view layer zPosition   1

User · Answer

Swift 2 version of Jere s answer   UIApplication sharedApplication   keyWindow  bringSubviewToFront YourViewHere    Swift 3   UIApplication shared keyWindow  bringSubview toFront  YourViewHere    Swift 4   UIApplication shared keyWindow  bringSubviewToFront YourViewHere    Hope it saves someone 10 seconds

User · Answer

I had a need for this once  I created a custom UIView class - AlwaysOnTopView    interface AlwaysOnTopView   UIView  end   implementation AlwaysOnTopView  -  void observeValueForKeyPath  NSString   keyPath ofObject  id object change  NSDictionary   change context  void   context       if  object    self superview  amp  amp   keyPath isEqual   subviews  count               self superview bringSubviewToFront self               super observeValueForKeyPath keyPath ofObject object change change context context      -  void willMoveToSuperview  UIView   newSuperview       if  self superview             self superview removeObserver self forKeyPath   subviews  count                super willMoveToSuperview newSuperview      -  void didMoveToSuperview        super didMoveToSuperview        if  self superview             self superview addObserver self forKeyPath   subviews  count  options 0 context nil             end   Have your view extend this class  Of course this only ensures a subview is above all of its sibling views

[ios] Bringing a subview to be in front of all other views

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