How can I make Xcode autocomplete delegate methods? - iphone

Question

This code uses a delegate
[[[UIAlertView alloc] initWithTitle: # "Error" message: # "You can leave the text blank" delegate: self cancelButtonTitle: # "Quit" otherButtonTitles: # "OK", nil] show];
The delegate in question is:
(void) alertView: (UIAlertView *) alertView clickedButtonAtIndex: (NSInteger) buttonIndex {
My question is this:
How do you autocomplete for Xcode delegate methods?.
In Eclipse you can do from the Source menu option Generate Delegate methods.
Regards and thanks!

Answer 1

Your class should support UIAlertViewDelegate protocol
#interface YourClass : NSObject
<
UIAlertViewDelegate
>
start typing "dash" - you'll see all supported method included UIAlertViewDelegate methods. To reduce the autocomplete methods list: type -alert
Simply use "Go to definition" to see all "UIAlertViewDelegate" methods. Start typing one of the following methods in your XCode
If method under #required section you have to implement it in your delegate object otherwise you'll get warning.
If under #optional methods you don't have to implement any of these methods (you won't get warnings), but in most cases you should do this to let it work as you expect.

Answer 2

try press esc in keyboard, Xcode : Version 11.3.1 (11C504)

Answer 3

If the method is not required, you won't get any warning about unimplemented methods.
XCode and Eclipse are different.
In second thought, u can use this trick

Answer 4

Another choice, you can use appcode instead of xcode, "Generate" feature can be found.

Answer 5

In Xcode you can create your own class with the custom component as per your need and create a delegate methods in side that for responding like people uses for parsing and AsyncImageView and etc..
you can visit here for Async class demo with the respoct of this you can write your own class for UIAlertView

Answer 6

Thank you very much to all.
In this case all "#protocol UIAlertViewDelegate" methods are under #optional.I understand that in this case it is not necessary my class should support UIAlertViewDelegate protocol because all methods are under #optional.
The solutions is:
right-click on UIAlertViewDelegate or UIAlertView, click on "Jump to definition", then you can see the #protocol. Inside you can see methods with #optional and #requiered. If method under #required section you have to implement it in your delegate object otherwise you'll get warning. If under #optional methods you don't have to implement any of these methods (you won't get warnings)
Thank you again

Answer 7

This is what I do for delegates that I use frequently.
Find the required methods and optional ones that you will always implement by accessing the UIAlertViewDelegate definition.
Add empty implementations for these methods.
Add a snippet with the shortcut being the delegate name and the content being my empty implementations (select then drag and drop to snippet library)
Next time I use that delegate all I need to do is to start typing my shortcut (Ex: AlertViewDelegate to auto-insert my empty implementations
Bonus:
I also sometimes add in some default code in the implementations that is always going to be there, example:
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
NSString* title = [alertView.title lowercaseString];
if (buttonIndex != alertView.cancelButtonIndex) {
if ([title isEqualToString:<#action title#>]) {
<#statements#>
}
}else{
<#cancel code#>
}
}