nsstring

(have searched, but not been able to find a simple solution to this one either here, or in Cocoa docs) Q. How can I trim all leading whitespace only from an NSString? (i.e. leaving any other whitespace intact.) Unfortunately, for my purposes, NSString's stringByTrimmingCharactersInSet method works on both leading and trailing. Mac OS X 10.4 compatibility needed, manual GC. John Franklin This creates an NSString category to do what you need. With this, you can call NSString *newString = [mystring stringByTrimmingLeadingWhitespace]; to get a copy minus leading whitespace. (Code is untested, may

Does anyone know how to use line breaks in NSString? I need to do something like this - [NSString stringWithFormat:@"%@,\n%@", mystring1,mystring2]; I just ran into the same issue when overloading -description for a subclass of NSObject. In this situation I was able to use carriage return (\r) instead of newline (\n) to create a line break. [NSString stringWithFormat:@"%@\r%@", mystring1,mystring2]; If your string is going in a UIView (e.g a UILabel), you also need to set the number of lines to 0 myView.numberOfLines=0; I found that when I was reading strings in from a .plist file, occurrences

I have an enum holding several values: enum {value1, value2, value3} myValue; In a certain point in my app, I wish to check which value of the enum is now active. I'm using NSLog but I'm not clear on how to display the current value of the enum (value1/valu2/valu3/etc...) as a NSString for the NSLog. Anyone? badMonkey This is answered here: a few suggestions on implementation The bottom line is Objective-C is using a regular, old C enum , which is just a glorified set of integers. Given an enum like this: typedef enum { a, b, c } FirstThreeAlpha; Your method would look like this: - (NSString*)

I've been trying to get rid of the white spaces in an NSString , but none of the methods I've tried worked. I have "this is a test" and I want to get "thisisatest" . I've used whitespaceCharacterSet , which is supposed to eliminate the white spaces. NSString *search = [searchbar.text stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceCharacterSet]]; but I kept getting the same string with spaces. Any ideas? AliSoftware stringByTrimmingCharactersInSet only removes characters from the beginning and the end of the string, not the ones in the middle. 1) If you need to remove only a given

This question already has an answer here: How can I create a UIColor from a hex string? 46 answers I am using this code for create UIColor from hex value. Its working perfectly. extension UIColor { convenience init(red: Int, green: Int, blue: Int) { assert(red >= 0 && red <= 255, "Invalid red component") assert(green >= 0 && green <= 255, "Invalid green component") assert(blue >= 0 && blue <= 255, "Invalid blue component") self.init(red: CGFloat(red) / 255.0, green: CGFloat(green) / 255.0, blue: CGFloat(blue) / 255.0, alpha: 1.0) } convenience init(netHex:Int) { self.init(red:(netHex >> 16) &

I have a string 0023525631 but what I want is the string 23525631 -- without the leading zeroes. How do I do this? You can convert string to integer and integer to string if you are number. Or Declarate pointer to this string and set this pointer to a start of your string, then iterate your string and add to this pointer number of zeros on the start of string. Then you have pointer to string who starting before zeros, you must use pointer to obitain string without zeros, if you use string you can get string with zeros. Or You can reverse string, and iterate it from reverse, if you get some