Uialertview text to NSMutableArray, ios 4.3 - ios

Question

i have been trying to copy text input from alertview textfield to a NSMutableArray that i will use later, alertview pops up and i enter the input to text field but when i press OK alert view disappears but doesnt copy text to my mutable array
here is my code
-(IBAction)add:(UIButton *)sender
{
addCustomStand = [[NSMutableArray alloc] init];
UIAlertView* dialog = [[UIAlertView alloc] initWithTitle:#"Enter a Stand Location"
message:#" "
delegate:self
cancelButtonTitle:#"Cancel"
otherButtonTitles:#"OK", nil];
UITextField *nameField = [[UITextField alloc]
initWithFrame:CGRectMake(20.0, 45.0, 245.0, 25.0)];
[nameField setBackgroundColor:[UIColor whiteColor]];
nameField.text = #"";
[dialog addSubview:nameField];
if ([nameField text]){
NSLog(#"Name Field %# ",nameField.text);
[addCustomStand addObject:nameField.text];
}
[nameField release];
[dialog show];
[dialog release];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSString *title = [alertView buttonTitleAtIndex:buttonIndex];
if([title isEqualToString:#"OK"])
{
NSLog(#"Button 1 was selected.");
NSLog(#"StandLocations %# ",addCustomStand);
}
}
here is my output on log screen
2012-02-07 20:26:57.315 Avicii[1399:b603] Name Field
2012-02-07 20:26:59.720 Avicii[1399:b603] Button 1 was selected.
2012-02-07 20:26:59.721 Avicii[1399:b603] StandLocations (
""
)
anyone can help whats wrong with that code?

Answer 1

That's because [nameField text] doesn't have user entered value yet when you added it in your [addCustomStand addObject:nameField.text];
so change your adding into array in UIAlertView delegate method.
-(IBAction)add:(UIButton *)sender
{
addCustomStand = [[NSMutableArray alloc] init];
UIAlertView* dialog = [[UIAlertView alloc] initWithTitle:#"Enter a Stand Location"
message:#" "
delegate:self
cancelButtonTitle:#"Cancel"
otherButtonTitles:#"OK", nil];
UITextField *nameField = [[UITextField alloc]
initWithFrame:CGRectMake(20.0, 45.0, 245.0, 25.0)];
[nameField setBackgroundColor:[UIColor whiteColor]];
nameField.text = #"";
// Note at this line
nameField.tag = 100;
//
[dialog addSubview:nameField];
[nameField release];
[dialog show];
[dialog release];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSString *title = [alertView buttonTitleAtIndex:buttonIndex];
if([title isEqualToString:#"OK"])
{
// Note at this line
UITextField* nameField = (UITextField *)[alertView viewWithTag:100];
[addCustomStand addObject:nameField.text];
//
NSLog(#"Button 1 was selected.");
NSLog(#"StandLocations %# ",addCustomStand);
}
}

Answer 2

You are adding nameField.text to your addCustomStand array before you even show the alert dialog. At the time you add it to the array the value is an empty string.
Instead you need to copy the value into your array during your clickedButtonAtIndex: method, by doing something like this:
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSString *title = [alertView buttonTitleAtIndex:buttonIndex];
if([title isEqualToString:#"OK"])
{
NSString *location;
UIView *view;
for (view in [alertView subviews]) {
if ([view isKindOfClass:[UITextField class]]) {
location = [(UITextField*)view text];
}
}
if (location) {
[addCustomStand addObject:location];
}
}
}