How to set iPhone UIView z index?

ios uiview position z-index
Tattat picture Tattat · Jan 8, 2011 · Viewed 214.8k times · Source

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?

Answer

Daniel says Reinstate Monica picture Daniel says Reinstate Monica · Jan 8, 2011

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"

Related questions

How to add constraints programmatically using Swift

I'm trying to figure this out since last week without going any step further. Ok, so I need to apply some constraints programmatically in Swift to a UIView using this code: var new_view:UIView! = UIView(frame: CGRectMake(0, 0, 100, 100)); new_view.…

Read More
How to add a touch event to a UIView?

How do I add a touch event to a UIView? I try: UIView *headerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, nextY)] autorelease]; [headerView addTarget:self action:@selector(myEvent:) forControlEvents:UIControlEventTouchDown]; // ERROR MESSAGE: UIView may not respond to '-addTarget:…

Read More
Giving UIView rounded corners

My login view has a subview which has a UIActivityView and a UILabel saying "Signing In…". This subview has corners which aren't rounded. How can I make them round? Is there any way to do it inside my xib?

Read More