NSAutoreleasePool跨方法执行?

示例代码:

- (void)primaryMethod {
    [self performSelectorInBackground:@selector(threadedMethod) withObject:nil];
}

- (void)threadedMethod {
    NSAutoreleasePool *aPool = [[NSAutoreleasePool alloc] init];

    // Some code here

    [self anotherMethod];

    // Maybe more code here

    [aPool drain];
}

- (void)anotherMethod {
    // More code here
}

threadedMethod anotherMethod .