2014/10/15 下午 10:15:27

iphone Programming Glossary: unichar

http://stackoverflow.com/questions/1092695/objective-c-unichar-vs-char

C unichar vs. char I'm a little confused between a unichar and a char. Can I treat unichar's similar to char's For example can I.. C unichar vs. char I'm a little confused between a unichar and a char. Can I treat unichar's similar to char's For example can I do this BOOL isNewLine unichar c if c ' n' return.. C unichar vs. char I'm a little confused between a unichar and a char. Can I treat unichar's similar to char's For example can I do this BOOL isNewLine unichar c if c ' n' return YES else return NO iphone c objective..

How to remove the last unicode symbol from NSString

http://stackoverflow.com/questions/11759855/how-to-remove-the-last-unicode-symbol-from-nsstring

this question Here's the problem. NSStrings are encoded using UTF 16. Many common Unicode glyphs take up only one unichar a 16 bit unsigned value . However some glyphs take up two unichars. Even worse some glyphs can be composed or decomposed.. UTF 16. Many common Unicode glyphs take up only one unichar a 16 bit unsigned value . However some glyphs take up two unichars. Even worse some glyphs can be composed or decomposed e.g.矇 might be one Unicode code point or it might be two an acute.. This makes it quite difficult to do what you want viz delete one character because it is really hard to tell how many unichars it takes up. Fortunately NSString has a method that helps with this rangeOfComposedCharacterSequenceAtIndex . What you..

unichar and NSString - how interchangeable are these?

http://stackoverflow.com/questions/1354388/unichar-and-nsstring-how-interchangeable-are-these

and NSString how interchangeable are these There is an NSString method characterAtIndex which returns an unichar. unichar.. and NSString how interchangeable are these There is an NSString method characterAtIndex which returns an unichar. unichar characterAtIndex NSUInteger index I wonder if this unichar which obviously is not an NSString can be converted.. and NSString how interchangeable are these There is an NSString method characterAtIndex which returns an unichar. unichar characterAtIndex NSUInteger index I wonder if this unichar which obviously is not an NSString can be converted into an NSString..

Unicode Character Not Showing

http://stackoverflow.com/questions/275437/unicode-character-not-showing

need to display Unicode characters. This code basically will display the infinity symbol void drawRect CGRect rect unichar inf 0x221E infinity symbol NSString sName NSString alloc initWithCharacters inf length 1 UIFont font UIFont fontWithName..

How to convert an NSString to hex values

http://stackoverflow.com/questions/3056757/how-to-convert-an-nsstring-to-hex-values

stringData encoding NSASCIIStringEncoding autorelease NSString stringToHex NSString str NSUInteger len str length unichar chars malloc len sizeof unichar str getCharacters chars NSMutableString hexString NSMutableString alloc init for NSUInteger.. autorelease NSString stringToHex NSString str NSUInteger len str length unichar chars malloc len sizeof unichar str getCharacters chars NSMutableString hexString NSMutableString alloc init for NSUInteger i 0 i len i hexString appendString..

How to find a pixel-positon of a cursor in UITextView?

http://stackoverflow.com/questions/3920944/how-to-find-a-pixel-positon-of-a-cursor-in-uitextview

CGPoint origin textView.frame.origin Checks whether a character right to the current cursor is a non space character unichar c ' ' if textView.selectedRange.location textView.text length c textView.text characterAtIndex textView.selectedRange.location..

Why can't Emoji display correctly in a UITextField?

http://stackoverflow.com/questions/9940278/why-cant-emoji-display-correctly-in-a-uitextfield

are in the Basic Multilingual Plane of the Unicode spec which means that they're all too big to fit in a single iOS unichar. So when they're stored in an NSString each emoji will cover multiple unichars something to be aware of if you try to iterate.. all too big to fit in a single iOS unichar. So when they're stored in an NSString each emoji will cover multiple unichars something to be aware of if you try to iterate over the characters in a string. If you have code like NSString emoji @..