xcode 編譯器禁用 ARC （Automatic Referencing Counting）

禁用可以設定 Build Setting => "Apple LLVM compiler 5.0- Ojjective C“ => “Objective-C Automatic Reference Counting" 置為NO。

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    // Override point for customization after application launch.

       self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

      self.window.backgroundColor = [UIColor whiteColor];

     DetailViewController * masterVC = [[DetailViewController alloc] init];

     self.navigationController = [[UINavigationController alloc] initWithRootViewController:masterVC];

      self.window.rootViewController = self.navigationController;

    [masterVC release];

    [self.window makeKeyAndVisible];

    return YES;

}