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I have an app where the user can choose an image either from the built-in app images or from the iphone photo library. I use an object Occasion that has an NSString property to save the imagePath . Now in the case of the built-in app images I do get the file name as an NSString an save in the [occasion imagePath] . But in the 2nd case where the user picks an image form the photo library I get an NSURL which I want to convert to an NSString to be able to save it in [occasion imagePath ]. Is it possible to convert the NSURL to an NSString ? Randall In Objective-C: NSString *myString = myURL

在开发过程中我们有时候在用户删除时候保存一些信息在用户下次安装应用时候使用，这个时候我们可以使用剪切版UIPasteboard的FindUIPasteboard和钥匙串keychain的使用 剪切版 剪切版主要分为以下两种 UIPasteboardNameGeneral和UIPasteboardNameFind 两种都是系统级的可以在应用删除后仍然保留数据 开发中我们常常使用UIPasteboard的Find UIPasteboard来保存一些用户删除应用后需要保留的数据如UUID，用户名，密码等 下面是一个保存uuid到UIPasteboard的代码 创建UDID + (NSString*) _uuidCreateNewUDID { NSString* _openUDID = nil; CFUUIDRef uuid = CFUUIDCreate(kCFAllocatorDefault); CFStringRef cfstring = CFUUIDCreateString(kCFAllocatorDefault, uuid); const char *cStr = CFStringGetCStringPtr(cfstring, CFStringGetFastestEncoding(cfstring)); unsigned char result[16]; CC_MD5(cStr,

I have been stuck with this for a while and don't seem to get around this. I am trying to read the contents of an URL as a string from an URL, But i get a weird Error -> Error Domain=NSCocoaErrorDomain Code=256 "The operation couldn’t be completed. (Cocoa error 256.)" My code : fetchedString = [[NSString alloc] initWithContentsOfURL:[NSURL URLWithString:@"www.example.com/iphone"] encoding:NSUTF8StringEncoding error:&error]; NSLog(@"%@",fetchedString); // if there is something wrong with the URL if (error) { NSLog(@"Error -> %@", error); return ; } What am I doing wrong? I tried using getting

I noticed that iOS 7 introduces new classes related to text layout such as NSLayoutManager, NSTextStorage, and NSTextContainer. How can I use these in order to get information about word wrapping on an NSString? For example, say I have a long NSString which I put in a UILabel. If I enable multiple lines on the UILabel, it would produce a string such as the following: The quick brown fox jumps over the lazy dog. That's great, but I can't access the line breaks in code (e.g. after the word jumps I would want it to return \n or something similar). I would want to know at which character indexes

I want to draw text just like the following style -- the image is always on the top right corner, and the text is around the image. Could anyone tell me how to implement this on iOS? Do I need to use Core Text? Thanks in advance! Yes, CoreText is the best way to do this. The code to do it is a little long to post here. Some code that may point you in the right direction is in the article "Clipping a CGRect to a CGPath." If the process for doing it is still confusing, ping me and I finally write the blog post I've been meaning to write on the subject. asetil Step 1 : Create an object inherited

Say I have my class @interface Person : NSObject { NSString *name; } I need to get the name of NSString's within my class Person *person = [[Person alloc] init]; NSLog(@"Name of variable %s\n", _NameofVariable_(person->name)); Thanks for the answers, here's the solution I came up from the replies //returns nil if property is not found -(NSString *)propertyName:(id)property { unsigned int numIvars = 0; NSString *key=nil; Ivar * ivars = class_copyIvarList([self class], &numIvars); for(int i = 0; i < numIvars; i++) { Ivar thisIvar = ivars[i]; if ((object_getIvar(self, thisIvar) == property)) {