How to set iPhone UIView z index

Question

I want to move one view on top of another  how can I know the z index of the view  and how to move on to top

User · Answer

parentView bringSubviewToFront view

User · Answer

Within the view you want to bring to the top     in swift   superview  bringSubviewToFront self

User · Answer

If you are using cocos2d  you may see an issue with  parentView bringSubviewToFront view   at least it was not working for me  Instead of bringing the view I wanted to the front  I send the other views back and that did the trick      CCDirector sharedDirector  view  sendSubviewToBack   UIButton    button

User · Answer

UIView siblings are stacked in the order in which they are added to their superview  The UIView hierarchy methods and properties are there to manage view order  In UIView h    property nonatomic readonly  UIView  superview   property nonatomic readonly copy  NSArray  subviews   -  void removeFromSuperview  -  void insertSubview  UIView   view atIndex  NSInteger index  -  void exchangeSubviewAtIndex  NSInteger index1 withSubviewAtIndex  NSInteger index2   -  void addSubview  UIView   view  -  void insertSubview  UIView   view belowSubview  UIView   siblingSubview  -  void insertSubview  UIView   view aboveSubview  UIView   siblingSubview   -  void bringSubviewToFront  UIView   view  -  void sendSubviewToBack  UIView   view    The sibling views are ordered back to front in the subviews array  So the topmost view will be    parentView subviews lastObject     and bottom view will be    parentView subviews objectAtIndex 0     Like Kolin Krewinkel said   parentView bringSubviewToFront view  will bring the view to the top  but this is only the case if the views are all siblings in the hierarchy

User · Answer

IB and Swift Given the flowing layout where yellow is the superview and red  green  and blue are sibling subviews of yellow   the goal is to move a subview  let s say green  to the top   In Interface Builder In the Interface Builder all you need to do is drag the view you want showing on the top to the bottom of the list in the Documents Outline   Alternatively  you can select the view and then in the menu go to Editor  gt  Arrange  gt  Send to Front  In Swift There are a couple of different ways to do this programmatically  Method 1 yellowView bringSubviewToFront greenView    This method is the programmatic equivalent of the IB answer above   It only works if the subviews are siblings of each other   An array of the subviews is contained in yellowView subviews  Here  bringSubviewToFront moves the greenView from index 0 to 2  This can be observed with   print yellowView subviews indexOf greenView      Method 2 greenView layer zPosition   1   This method just moves the 3D position of the layer higher  closer to the user  on the z-axis  Since the default is 0 for all the other views  the result is that the greenView looks like it is on top  However  it still remains at index 0 of the yellowView subviews array  This can cause some unexpected results  though  because things like tap events will still go first to the view with the highest index number  For that reason  it might be better to go with Method 1 above  The zPosition could be set to CGFloat greatestFiniteMagnitude  CGFloat FLT MAX  in older versions of Swift  to ensure that it is on top

User · Answer

You can use the zPosition property of the view s layer  it s a CALayer object  to change the z-index of the view   theView layer zPosition   1    As Viktor Nordling added   big values are on top  You can use any values you want  including negative values   The default value is 0   You need to import the QuartzCore framework to access the layer  Just add this line of code at the top of your implementation file    import  QuartzCore QuartzCore h

User · Answer

Or use this  -  void insertSubview  UIView   view belowSubview  UIView  siblingSubview    as per here

User · Answer

We can use zPosition in ios  if we have a view named salonDetailView  eg    IBOutlet weak var salonDetailView  UIView   In my case see the image  and have UIView for GMSMapView eg    IBOutlet weak var mapViewUI  GMSMapView   To show the View salonDetailView upper of the mapViewUI  use zPosition as below  salonDetailView layer zPosition   1

User · Answer

If you want to do this through XCode s Interface Builder  you can use the menu options under Editor- Arrangement  There you ll find  Send to Front    Send to Back   etc

[ios] How to set iPhone UIView z index?

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