CODEWITHSUNDEEP
objective-cxcode4.5
user4951
user4951

Reputation: 33140

How do I ensure that viewDidLoad is called without warning?

BGLogin * login = [[BGLogin alloc]init];

[nav pushViewController:login animated:YES];
login.view; //access it once to trigger didload
NSAssert(login.navigationItem==login.navigationItemAtDidload,@"They should be the same");//View didload isn't called yet here.
NSAssert(login.navigationController == nav,@"The navigation controller should be the same");
NSAssert(nav.navigationBar.topItem==login.navigationItem,@"We just push our self so our stuff should be on top");

It's simple code. However if I do not do login.view then viewDidLoad will not be called first. If I do login.view than I got a warning that value of login.view is not used.

So what should I do?

Upvotes: 0

Views: 93

Answers (2)

一二三
一二三

Reputation: 21289

If you don't care about the return value, then don't use the property accessor syntax (login.view). Call the getter like a regular method: [login view].

Upvotes: 2

Guo Luchuan
Guo Luchuan

Reputation: 4731

If you just want use login.view; to make the viewDidLoad be called , I think you had better to add some code in your BGLogin classs init method.

such as :

- (id)init
{
    // your code

    self.view.tag = 0;
    return self;
}

or you can change your login.view; to login.view.tag = 0;

it will call the viewDidLoad , but I do not think it is better , but it will work for you , maybe somebody has a better way to handle it

Upvotes: 1

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