何时调用[super viewDidLoad]和[super viewDIdUnload]？(When to call [super viewDidLoad] and [super viewDIdUnload]?)

 在我的大部分代码中，我有以下设置viewDidLoad和viewDidUnload： 
 
- (void)viewDidLoad
{
    [super viewDidLoad];

    //do stuff...
}

- (void)viewDidUnload
{
    [super viewDidUnload];

    //do stuff...
}
 
 然而，我想知道...当你调用viewDidLoad和viewDidUnload时，它有什么关系吗？ 每个人应该在我“做什么”之前或之后？ 
 
 换句话说，每个人应该在方法的开始还是结束？ 
 
 编辑：为了进一步复杂化，这是苹果的默认viewDidUnload方法，“似乎”建议首先调用[super viewDidUnload] ... 
 
- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

In most of my code, I have the following setup for viewDidLoad and viewDidUnload:
 
- (void)viewDidLoad
{
    [super viewDidLoad];

    //do stuff...
}

- (void)viewDidUnload
{
    [super viewDidUnload];

    //do stuff...
}
 
However, I got to wondering... does it matter when you call viewDidLoad and viewDidUnload? Should each one be before or after I "do stuff"? 
 
In other words, should each one be at the start or end of the method? 
 
Edit: To further complicate things, this is Apple's default viewDidUnload method, which "seems" to suggest [super viewDidUnload] be called first...
 
- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

原文：https://stackoverflow.com/questions/12847273