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iOS

Posted by Tom Coomer
Tom Coomer
1,331 Points

Detect if label contains double space

How would I replace double spaces in a label with a single space?

1 Answer

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

try something like. 

if (label.text == "  ") {

   label.text = " ";

}

the label references may be incorrect, it could be something like self.label.text = whatever but I havent really done much iOS development lately so I cant remember exactly

Tom Coomer
Tom Coomer
1,331 Points

Does this check if the label contains it or is equal to that? The label may have other words in it.

e.g. @"Treehouse is great!"

Stone Preston
Stone Preston
42,016 Points

ah this is checking if the label only contains the double space. to check if the label has a double space

using the code posted here

NSString *myString = label.text;
NSRange rangeValue = [myString rangeOfString:@" " options:NSCaseInsensitiveSearch];

if (rangeValue.length > 0){

NSLog(@"string contains two spaces");

} 

else {

NSLog(@"string does not contain two spaces");

}

As far as replacing it with a space might be a bit more difficult.

Stone Preston
Stone Preston
42,016 Points

you could use the location property of the range

rangeValue.location

to give you the index of the array where the double space starts.

you could then create a substring for the first part of the string up to the double space

NSString *firstHalf = [self.text substringWithRange:NSMakeRange(0, rangeValue.location)];

and then use the same method again to give the last half just after the double space and concatenate the 2 strings together