Find one string in another with case insensitive in Objective-C
As similar to the answer provided in the link, but use options.
See - (NSRange)rangeOfString:(NSString *)aString options:(NSStringCompareOptions)mask in Apple doc
NSString *string = @"hello bla bla";if ([string rangeOfString:@"BLA" options:NSCaseInsensitiveSearch].location == NSNotFound){ NSLog(@"string does not contain bla");} else { NSLog(@"string contains bla!");}
From iOS 8 you can add the containsString: or localizedCaseInsensitiveContainsString method to NSString.
if ([string localizedCaseInsensitiveContainsString:@"BlA"]) { NSLog(@"string contains Case Insensitive bla!");} else { NSLog(@"string does not contain bla");}
NSString *string = @"hello BLA";if ([string rangeOfString:@"bla" options:NSCaseInsensitiveSearch].location == NSNotFound) { NSLog(@"string does not contain bla");} else { NSLog(@"string contains bla!");}