Have you tried :
[CATransaction begin];
[CATransaction setValue:(id)kCFBooleanTrue
forKey:kCATransactionDisableActions];
// Your code here
[CATransaction commit];
See also:
http://developer.apple.com/documentation/Cocoa/Conceptual/CoreAnimation_guide/Articles/Transactions.html
http://www.cocoabuilder.com/archive/message/cocoa/2008/6/25/211097
-Matt
On Nov 22, 2008, at 12:41 PM, Wolf Hauser wrote:
Hello,
Background: the application I am trying to build consists mainly of
a WebView. And I need to perform some custom drawing in front of
that WebView. First, I simply placed (in IB) a custom view in front
of the WebView. Unfortunately, my drawing always took place behind
the WebView. A little search in the documentation and on Google
revealed that this is normal behavior. The only way to draw in front
of such a complex thing as a WebView seems to be using Core
Animation layer-backed views. OK. I set the wantsLayer property to
YES for the NSView that contains both the WebView and my custom
view. Then I set the zPosition of my custom view to 0.1 (arbitrary,
greater than zero). It works great, I finally see my drawing.
However, now I have another problem:
Both, my custom view and the WebView are configured to resize with
their superview. Before activating wantsLayer, this resizing was a
smooth process. Now, however, some animations take place, fading my
WebView in and out constantly during the resize. I suspect that
these are some implicit transactions or whatever which come with
Core Animation (I am totally new to Core Animation).
Question: is there a (simple) way to switch all these implicit
behaviors off (while keeping the possibility to stack the two views
in layers)?
Any suggestions would be very appreciated...
Wolf
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