Question

I’m new to Objective-C and XCode and I’ve encountered such a problem.

How do you properly save the value to NSUserDefaults.

I have value in

[_textFields objectAtIndex:2]).text

And trying to do this

[[[NSUserDefaults standardUserDefaults] setValue:((UITextField *)[_textFields objectAtIndex:2]).text))  forKey:@"Phone"];
[[NSUserDefaults standardUserDefaults] synchronize];

How do you do it properly?

Answer 1

Use setObject:forKey: instead of setValue:forKey:

[[[NSUserDefaults standardUserDefaults] setObject:((UITextField *)[_textFields objectAtIndex:2]).text)) forKey:@"Phone"];

Update:
You code will work if you really have that text field in the array. Here is the step by step broken down code to make it more clear:

UITextField* textField = [_textFields objectAtIndex:2]; // get your text field
NSString* text = textField.text; // get the actual value we are going to store
[[[NSUserDefaults standardUserDefaults] setObject:text forKey:@"Phone"]; // store it