Set the maximum character length of a UITextField

Question

How can I set the maximum amount of characters in a UITextField on the iPhone SDK when I load up a UIView?

Answer 1

I created this UITextFieldLimit subclass:

• Multiple textfields supported
• Set the text length limit
• Paste prevention
• Displays a label of left characters inside the textfield, get hidden when you stop editing.
• Shake animation when no characters left.

Grab the UITextFieldLimit.h and UITextFieldLimit.m from this GitHub repository:

https://github.com/JonathanGurebo/UITextFieldLimit

and begin to test!

Mark your storyboard-created UITextField and link it to my subclass using the Identity Inspector:

Then you can link it to an IBOutlet and set the limit(default is 10).

---

Your ViewController.h file should contain: (if you wan't to modify the setting, like the limit)

#import "UITextFieldLimit.h"

/.../

@property (weak, nonatomic) IBOutlet UITextFieldLimit *textFieldLimit; // <--Your IBOutlet

---

Your ViewController.m file should @synthesize textFieldLimit.

---

Set the text length limit in your ViewController.m file:

- (void)viewDidLoad
{
    [super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

    [textFieldLimit setLimit:25];// <-- and you won't be able to put more than 25 characters in the TextField.
}

Hope the class helps you. Good luck!