CODEWITHSUNDEEP
iosobjective-cvalidationdesign-patternsdesign-principles
Irfan
Irfan

Reputation: 5130

IOS : Best practices for Fields Validation on User Interface

In my app I want to validate user inputs in the fields. For Example

If textfields is empty. Or email is in correct format

I don't want to add validation logic in ViewController, Neither I want to pass UIView to a Validator Class

I have multiple screens like this.

Any suggestion for best ways validating Screens.

Upvotes: 0

Views: 1924

Answers (2)

KDeogharkar
KDeogharkar

Reputation: 10959

what you can do is create category class of UIView and write instance method like

Validation+UIView 

+(BOOL)isEmpty:(NSString *)string{
    // snippet to check empty validation and return value.
    }


+(BOOL)emailValidation:(NSString *)string{
// snippet to check email validation and return value.

}

Now use this instance method on your view.

if(![yourview isEmpty]){
// all good ...
}

Upvotes: 2

iAnurag
iAnurag

Reputation: 9346

If you are targeting it for multiple scenes then it is good to have a validator class for all your UITextFields. I have written a UITextField validator class which is very simple to use. You can modify it as you want. Take a look. Best luck

Upvotes: 1

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