Iphone SDK Utility Application template has leak

Question

i\'m only create an project with a Utility Application template. This template has a native memory leak when i push \"info button\" to flip the view.

Anyone know how

Answer 1

This must be a bug. It appears in Apple's own example, PageControl, found here: http://developer.apple.com/iphone/library/samplecode/PageControl/index.html#//apple_ref/doc/uid/DTS40007795

Answer 2

Got the leak doing this:

XCode 3.2--

File, New Project, Navigation-based Application
Give it a name
Build It
Run With Performance Tools -> Leaks

When Instruments comes up, click on Leaks (you might have to click the little icon at the bottom that looks like four boxes within a box)

About 7 seconds after running you should see the leak: -- Malloc 128 Bytes, some Address, 128 Bytes, CoreGraphics, open_handle_to_dylib_path

I traced it to this code in the AppDelegate:

//APPLE CODE
- (void)applicationDidFinishLaunching:(UIApplication *)application {    

    // Override point for customization after app launch    

    [window addSubview:[navigationController view]];
    [window makeKeyAndVisible];
}

I broke out the navigationController (did a separate alloc and release) and COMMENTED OUT the addSubview: action - there was no leak - and, obviously, the screen was blank.

It wasn't until I attempted addSubview that the leak occurred. Since there are numerous ways to add a subview, I tried those. Each resulted in the leak or a blank screen.