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iOS

Posted by Haroon Akhtar
Haroon Akhtar
3,129 Points

add alert if no recipients are selected

Hi,

In ribbit for ios i want to add an UIAlertView if no recipients are selected.

I have been trying in the send button: if (!self.recipients) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Sorry" message:@"Select some friends" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];

    [alertView show];

}

it does not seem to work. any ideas why?

2 Answers

Stepan Ulyanin
Stepan Ulyanin
11,318 Points

Hi, if self.recipients is an array you might want to check if the number of elements is 0, something like 

if ([self.recipients count] == 0) {
//show alert
}

Because if somewhere before your alert you already allocated and initialized the self.recipients BUT it doesn't have any elements, it will not be nil anymore and that will cause the logic mistake.

Haroon Akhtar
Haroon Akhtar
3,129 Points
Haroon Akhtar
Haroon Akhtar
3,129 Points

thanks stephan