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2014/10/15 ¤U¤È 10:05:47

iphone Programming Glossary: cs

Filter out characters in one UITextField

http://stackoverflow.com/questions/13482360/filter-out-characters-in-one-uitextfield

NSRange range replacementString NSString string if textField isEqual txtCountry NSCharacterSet cs NSCharacterSet characterSetWithCharactersInString LEAGELNUM invertedSet NSString filtered string componentsSeparatedByCharactersInSet.. characterSetWithCharactersInString LEAGELNUM invertedSet NSString filtered string componentsSeparatedByCharactersInSet cs componentsJoinedByString @ BOOL basicTest string isEqualToString filtered return basicTest iphone objective c ios share..

EXC_BAD_ACCESS (SIGSEGV) crash

http://stackoverflow.com/questions/1733317/exc-bad-access-sigsegv-crash

183 5 CoreFoundation 0x302452c1 CFRunLoopRunSpecific 3217 6 CoreFoundation 0x30244628 CFRunLoopRunInMode 88 7 GraphicsServices 0x32044c31 GSEventRunModal 217 8 GraphicsServices 0x32044cf6 GSEventRun 115 9 UIKit 0x309021ee UIApplicationMain.. 3217 6 CoreFoundation 0x30244628 CFRunLoopRunInMode 88 7 GraphicsServices 0x32044c31 GSEventRunModal 217 8 GraphicsServices 0x32044cf6 GSEventRun 115 9 UIKit 0x309021ee UIApplicationMain 1157 10 iAddressGrabber 0x00001efc main 102 main.m.. edx 0xc0000003 edi 0x00f7b3b0 esi 0xbfffeaa4 ebp 0xbfffea28 esp 0xbfffe8a8 ss 0x0000001f efl 0x00010206 eip 0x910e0688 cs 0x00000017 ds 0x0000001f es 0x0000001f fs 0x00000000 gs 0x00000037 cr2 0xc0000023 iphone share improve this question..

CGImageCreateWithMask works great but the masked out area is black in my resulting image, how can I set it to be white?

http://stackoverflow.com/questions/3848430/cgimagecreatewithmask-works-great-but-the-masked-out-area-is-black-in-my-resulti

has BLACK where it was masked out how can I set it to have WHITE where its masked out iphone objective c quartz graphics share improve this question If you are masking JPEG image which does not have alpha channel this will happen black background.. like this before masking CGImageRef imageNoAlpha UIImage imageNamed @ noAlphaImage.jpg .CGImage CGColorSpaceRef cs CGColorSpaceCreateDeviceRGB CGFloat width CGImageGetWidth imageNoAlpha CGFloat height CGImageGetWidth imageNoAlpha CGContextRef.. CGFloat height CGImageGetWidth imageNoAlpha CGContextRef ctxWithAlpha CGBitmapContextCreate nil width height 8 4 width cs kCGImageAlphaPremultipliedFirst CGContextDrawImage ctxWithAlpha CGRectMake 0 0 width height imageNoAlpha CGImageRef imageWithAlpha..

UITextField should have only positive number

http://stackoverflow.com/questions/6954382/uitextfield-should-have-only-positive-number

UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString string NSCharacterSet cs NSCharacterSet characterSetWithCharactersInString LEAGELNUM invertedSet NSString filtered string componentsSeparatedByCharactersInSet.. characterSetWithCharactersInString LEAGELNUM invertedSet NSString filtered string componentsSeparatedByCharactersInSet cs componentsJoinedByString @ BOOL basicTest string isEqualToString filtered return basicTest LEAGELNUM means you can only..