I have a predominantly. Net background, and with Binding and Annotations it is possible to implement form validation cleanly in a low maintenance manner, on large forms, with few lines of code. Since embracing Swift, I have come across many examples detailing validation in various fashions, but everything I have encountered thus far seems very labour intensive and high maintenance, or the explanations focus on conducting the validation itself rather than connecting the validation process between Validating user input ios model and the view efficiently.
My current solution defines extensions which can be checked in a function, rule-by-rule, when validating field input, however I feel there must be a more scalable solution to this problem. What approaches can be taken, when validating forms with potentially many inputs, that promote maintainability? Of course, I am not looking for an implementation that literally satisfies the list above, but instead a method or approach that is scaleable across these types of scenarios.
Yes, building a scaleable form in iOS can be a difficult and monotonous job. Which is why I have a base class called a FormViewController that exposes a few common validation methods and a few methods that you can use to add customised validation. Now, the following code "Validating user input ios" be very long, and I am not going to explain each line.
Do revert in the form of comments, if you have any doubts.
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Validating TextField Validate TextField as Double using extensions Validating email addresses My current solution defines extensions which can be checked in
Validating user input ios function, rule-by-rule, when validating field input, however I feel there must be a more scalable solution to this problem.
For example sake, we could discuss a hypothetical form with: A textField requesting a number be entered Int. A textField requesting a decimal number be entered Double. A textField requesting a number be entered, matching specific rules Eg, is prime Double. A textField requesting a string be entered of some length kL. A textField requesting a string be entered conforming to some custom rule.
Gui 1 8 Your solution seems like the next logical step I would have taken.