US 01.06.01 Habit input validation - 2 pts

[cbebe]

As a doer, I want a habit title to be up to 20 characters, a habit reason to be up to 30 characters.

Rationale - Keeps the details short and sweet. Makes sure that they're always fully visible when viewing.

Story Points - 2

Risk Level - Low

Details - Input validation before confirming the creation. Should add error messages if the user enters an invalid value.

• Add input validation in the function that saves a Habit.

if (input >= REQUIRED_LENGTH) {
	// invalid length
}

• Call these methods on the EditText called view when its input is invalid:

view.setError(errorMessage);
view.requestFocus();

To be released at halfway checkpoint.