UIView内存版本

Question

When do I have to release UIView in the below code?

UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(20, 10,
120.0, 100)]; 

return headerView;

Thanks for any help

Answer 1

return it as auto-release. The one who uses this functions will take care of its ownership. See this post .

Answer 2

It depends on how you're going to use the view. If you assign the view returned from the method to some object (for example to a UIViewController) and that object retains it then you should autorelese the view in the above function. This way you'll make sure that it gets released automatically after the method loop ends and also it'll be alive long enough for an object to retain it. So the code will be like this:

UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(20, 10,
120.0, 100)]; 
[headerView autorelese];
return headerView;

For ex:

myViewController.view=theMethodThatReturnsView;//which is the above method