如何为UITextField分配默认值？

Question

My iOS app crashes every time a user hits 'next' when one of the fields (they're strings) is empty. How do I make it to where this doesn't happen?

emailBody = [emailBody stringByAppendingString:nameField.text];

Here's one of the lines that is causing the crash; it's trying to pull the data from nameField.text, but in some cases it's empty and this crashes it.

Answer 1

You shouldn't assign a default value - instead you should secure your code so it does not crash.

In this case, you could do the following:

if (nameField.text) {
    emailBody = [emailBody stringByAppendingString:nameField.text];
}