Am 19.11.2008 um 10:05 schrieb mmalcolm crawford:
On Nov 18, 2008, at 10:33 AM, Marc Stibane wrote:
Lets forget for a moment that the dealloc never get's called at all
on the iPhone
This is simply untrue.
Nope.
Try to set a breakpoint inside the dealloc in the same file as
applicationDidFinishLaunching, run your app and press the home button.
Never called, and purposely so - the application finishes anyway, so
why spend cycles deallocating small blocks one-by-one when you can
just throw away all memory the app used in one block...
So why the local var?
3 lines of code instead of 1...
Isn't a main goal of Cocoa to write *less* code?
Because:
Cocoa strongly advocates you use accessor methods to set instance
variables(*);
You are discouraged from setting instance variables directly
anywhere other than in initializers and dealloc(*);
For me, applicationDidFinishLaunching IS an initializer...
On iPhone in particular, you should avoid the use of autorelease.
The latter point in particular means that this alternative:
self.viewController = [[[UIViewController alloc]
initWithNibName:@"MoveMeView" bundle:[NSBundle
mainBundle]] autorelease];
does not follow best practice.
Thus -- almost by a process of elimination -- you're left with the
pattern shown in iPhone samples.
I stick with my applicationDidFinishLaunching implementation - 1 line
instead of 3.
Of cause you're right were it some other method which could be called
more than once and not applicationDidFinishLaunching, which is only
called once and - as stated above - never paired with dealloc
(however, applicationWillTerminate is called).
--
In a world without walls and fences,
who needs windows and gates?
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