Passing an object to selector action - objective-c

Question

Ok simple question but can't find an answer.
I'v got a button to save information in my app.
I have
NSMutableArray *textFields = [[NSMutableArray alloc] initWithCapacity:5];
UITextField *textField = nil;
This is the information i want to save, i'v got 5 textfields in textFields mutablearray.
[save addTarget:self action:#selector(saveInfo)
forControlEvents:UIControlEventTouchUpInside];
and
-(void)saveInfo {
[[[NSUserDefaults standardUserDefaults] setValue: ????? forKey:#"Phone"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
The question is how to access and get information from like textFields[1].text in my saveInfo void ?
Ok To get things a little bit clearer i'v added the whole class. its not very big, and maybe someone could see thats the problem with my implementation .
#implementation Settings
- (id)init: (TableViewController*) TableControll {
NSMutableArray *textFields = [[NSMutableArray alloc] initWithCapacity:5];
UITextField *textField = nil;
for (int i = 0; i < 3; i++) {
textField = [[UITextField alloc] initWithFrame:CGRectMake(0.0f, 0.0f+(i*35), 120.0f, 30.0f)];
textField.backgroundColor = [UIColor whiteColor];
[textField setBorderStyle:(UITextBorderStyleRoundedRect)];
[TableControll.view addSubview:textField];
[textFields addObject:textField];
[textField release]; textField = nil;
}
UITextField *textName = textFields[0];
textName.placeholder = #"Vardas";
UITextField *textNo = textFields[1];
textNo.placeholder = #"Telefonas";
textNo.keyboardType = UIKeyboardTypeNumberPad;
UITextField *textPin = textFields[2];
textPin.keyboardType = UIKeyboardTypeNumberPad;
textPin.placeholder = #"Pin";
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(150, 20, 160, 30);
[button setTitle:#"Advanced settings" forState:UIControlStateNormal];
[TableControll.view addSubview:button];
UIButton *save = [UIButton buttonWithType:UIButtonTypeRoundedRect];
save.frame = CGRectMake(150, 60, 160, 30);
[save setTitle:#"Save settings" forState:UIControlStateNormal];
[TableControll.view addSubview:save];
[button addTarget:self action:#selector(goAdvanced)
forControlEvents:UIControlEventTouchUpInside];
[save addTarget:self action:#selector(saveInfo)
forControlEvents:UIControlEventTouchUpInside];
return self;
}
-(void)goAdvanced {
AppDelegate *newControll = (AppDelegate*)[UIApplication sharedApplication].delegate;
[newControll ChangeController];
}
-(void)saveInfo {
for(int i=0;i<5;i++) {
UITextField *tempTxtField=[_textFields objectAtIndex:i];
NSLog(#"do it %#",tempTxtField.text);
}
}
#end

Answer 1

What you'd want to do if you are using interface builder is create a bunch of IBOutlet for your textfields instead of keeping them in an array. Check out this: tutorial
Now it looks like you're creating things by hand, so in this case, you probably just want to declare your array as #property so it can be accessed by your save method.

Answer 2

To access the text property of a UITextField from your array you would write:
((UITextField *)[textFields objectAtIndex:1]).text

Answer 3

If you want to access the all textfield,
for(int i=0;i<[textFields count];i++) {
UITextField *tempTxtField=[textFields objectAtIndex:i];
NSlog(#"%#",tempTxtField);
}

Answer 4

-(void)saveInfo {
NSMutableArray *tempArr = [NSMutableArray array];
for(int i = 0; i < [textFieldsArray count]; i++){
[tempArr addObject:[(UITextField*)[textFieldsArray objectAtIndex:i]text]];
}
[[[NSUserDefaults standardUserDefaults] setValue:tempArr forKey:#"Phone"];
[[NSUserDefaults standardUserDefaults] synchronize];
}

Answer 5

I'm not entirely sure I understand your question, but this is what I would do in your place. Instead of creating an array to hold each of the textfields, I'd just assign them a custom tag. Any number will work (although avoid zero since that's the default tag on all views). So your init method would look like this:
for (int i = 0; i < 3; i++) {
textField = [[UITextField alloc] initWithFrame:CGRectMake(0.0f, 0.0f+(i*35), 120.0f, 30.0f)];
textField.backgroundColor = [UIColor whiteColor];
textField.tag = (i+1);
[textField setBorderStyle:(UITextBorderStyleRoundedRect)];
[TableControll.view addSubview:textField];
[textField release]; textField = nil;
}
Then in the code that you want to reference the text field, you'd retrieve the view by its tag, making sure to cast it as UITextField.
-(void)saveInfo {
for(int i=0;i<5;i++) {
UITextField *textField = nil;
UIView *view = [self.view viewsWithTag:i];
if ([view isKindOfClass:[UITextField class]]) {
textField = (UITextField *) view;
NSLog(#"do it %#",textField.text)
}
}
}
NOTE: I'm referencing self.view but you'll need to reference TableControll.view. You'll need to retain a reference to it somewhere in your code. Also, I'd recommend your start using ARC.
Hope that helps! Good luck!