I create custom login page by using UIAlerView subclass. Now when i click on button it opens up UIAlertView I want to change the main view based on which button is pressed.
But as all implementation of UIAlerView is in another class though i change the view it doesn't retain that as that class variable doesn't get it's value.
Can anyone please help me with this? I can post the code if required.
Thank you, Ankita
You can use a custom init method like below for alertView and store the _sender in global or class variable. like
id sender;
- (id)initWithSender:(id)_sender
{
self = [super init];
if (self) {
sender=_sender;
}
return self;
}
from RootVC/bgview initialize alertView as follows and define a method named
-(void) alertIndexSelected:(NSInterger) index;in rootvc/your main view.{
//change the backgound view based on button selected }
alertViewobj =[[alertView alloc] initWithSender:self];
when the button is selected on alertview call the below method, this will notify your rootvc about which index of alert is pressed. use following alertview delegate.
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
[sender alertIndexSelected: buttonIndex];
}
If you are planning to use delegate methods then I think you need to referrer to some of these links.
How to use custom delegates in Objective-C
How do I create delegates in Objective-C?
http://iosdevelopertips.com/objective-c/the-basics-of-protocols-and-delegates.html
I hope this will help you a great deal in understanding delegates.
