Accesing a UIView's member variable from another UIView

Question

I have Three different views on iphone. I switch between different views successfully, but I want to access the 1st view's variable in second view's ViewDidLoad method but I can't get it so plz help me on that.

Answer 1

You need a reference to the first view on the second one. So, when you instantiate the second one, implement a message that would receive the first view and store a reference to it.

Let me point that it's better to use ViewController pattern to orchestrate data and behavior flowing from one view to another.

Answer 2

Having two subclasses of UIView declared like so:

@interface ViewOne : UIView {
    NSString *someVar;
}

@property (nonatomic, copy) NSString *someVar;

@end

@interface ViewTwo : UIView {
    NSString *referenceToSomeVar;
}

@property (nonatomic, retain) NSString *referenceToSomeVar;

@end

You could do the following the reference the "someVar" variable from the first view

ViewOne *view1 = [[ViewOne alloc] init];
view1.someVar = @"This is the original variable";

ViewOne *view2 = [[ViewOne alloc] init];
view2.referenceToSomeVar = view1.someVar;