Question

I am creating an application in iOS SDK and the user must enter a password to access their content. I am using an If-Else statement to verify their password. Problem is, the If-else statement is working backwards, not like it should. For example: If The user enters the correct password then the label text says: Wrong Password. If the user enters the wrong password then the label text says: Password is Correct. That is the exact opposite of what I want it to do. Here is my code:

- (IBAction)isKeywordSecure:(id)sender {
    NSString *Key = [Keyword text];
    if ([Key compare:@"Password"]) {
        SecurityLevel.text=@"Keyword is Correct";
    } else {
        SecurityLevel.text=@"Keyword is WRONG";
    }
}

What did I do wrong? Any help would be appreciated! Thanks!

Answer 1

The NSString compare: method, like nearly all string comparison routines, returns zero if the strings compare equal (to be precise, it returns NSOrderedSame, which is zero).

You can replace your if condition with

if ([Key compare:@"Password"] == NSOrderedSame) {
    SecurityLevel.text=@"Keyword is Correct";

or use the isEqualToString: method instead.

All of this is in the documentation, with which you should familiarize yourself.