2014/10/15 下午 10:06:45

iphone Programming Glossary: digits

http://stackoverflow.com/questions/1246439/uitextfield-for-phone-number

to delete a number in the phone number. Works a little easier here because we already stripped out all the other non digits. NSString formatPhoneNumber NSString simpleNumber deleteLastChar BOOL deleteLastChar if simpleNumber.length 0 return @ use.. NSString simpleNumber deleteLastChar BOOL deleteLastChar if simpleNumber.length 0 return @ use regex to remove non digits including spaces so we are left with just the numbers NSError error NULL NSRegularExpression regex NSRegularExpression regularExpressionWithPattern.. simpleNumber simpleNumber substringToIndex simpleNumber length 1 123 456 7890 format the number.. if it's less then 7 digits.. then use this regex. if simpleNumber.length 7 simpleNumber simpleNumber stringByReplacingOccurrencesOfString @ d 3 d ..

Convert to Float and Calculate

http://stackoverflow.com/questions/14155360/convert-to-float-and-calculate

to Float and Calculate I have a string with multiple digits and operators @ 5 4 9 10 . How to get the result from it I want to use it within the calculator i am using. I will have..

How to disable phone number linking in Mobile Safari?

http://stackoverflow.com/questions/226131/how-to-disable-phone-number-linking-in-mobile-safari

to disable phone number linking in Mobile Safari Safari on iPhone automatically creates links for strings of digits that appear to the telephone numbers. I am writing a web page containing an IP address and Safari is turning that into a..

How to let the sortedArrayUsingSelector using integer to sort instead of String?

http://stackoverflow.com/questions/2752992/how-to-let-the-sortedarrayusingselector-using-integer-to-sort-instead-of-string

NSString otherString @end @implementation NSString Support psuedo numeric comparison if both strings begin with digits numeric comparison on the digits if numbers equal or non numeric caseInsensitiveCompare on the remainder NSComparisonResult.. @implementation NSString Support psuedo numeric comparison if both strings begin with digits numeric comparison on the digits if numbers equal or non numeric caseInsensitiveCompare on the remainder NSComparisonResult psuedoNumericCompare NSString..

What is the best way to enter numeric values with decimal points?

http://stackoverflow.com/questions/276382/what-is-the-best-way-to-enter-numeric-values-with-decimal-points

numbers 1 0 0. In order for your code to handle currencies of a different locale you need to get the maximum fraction digits of the currency. This can be done with the following code snippet NSNumberFormatter currencyFormatter NSNumberFormatter..

iOS Keychain Security

http://stackoverflow.com/questions/3558252/ios-keychain-security

attribute used Devices with no passcodes at all will still be vulnerable Devices with weak passcodes less than six digits will still be somewhat vulnerable 0ms per password try 0 tries per second .7 years for a 50 change of guessing the correct.. of guessing the correct passcode for a 6 digit alphanumeric code with base 36. The standard simple code of 4 numeric digits would be brute forced in less than 9 minutes. Based on the assumption that the counter for wrong tries in the iOS can be..

Convert NSString of a date to an NSDate

http://stackoverflow.com/questions/4332319/convert-nsstring-of-a-date-to-an-nsdate

as @ 9 22 2010 3 45 PM to an NSDate. I know to use NSDateFormatter but the problems are The month could be one or two digits Likewise the date could be one or two digits Hours could be one or two digits What do I do about AM PM iphone objective.. to use NSDateFormatter but the problems are The month could be one or two digits Likewise the date could be one or two digits Hours could be one or two digits What do I do about AM PM iphone objective c nsdate nsdateformatter share improve this.. are The month could be one or two digits Likewise the date could be one or two digits Hours could be one or two digits What do I do about AM PM iphone objective c nsdate nsdateformatter share improve this question NSDateFormatter dateFormat..

Objective-C: Find numbers in string

http://stackoverflow.com/questions/4663438/objective-c-find-numbers-in-string

intoString numberString Result. int number numberString integerValue Some of the many assumptions made here Number digits are 0 9 no sign no decimal point no thousand separators etc. You could add sign characters to the NSCharacterSet if needed... decimal point no thousand separators etc. You could add sign characters to the NSCharacterSet if needed. There are no digits elsewhere in the string or if there are they are after the number you want to extract. The number won't overflow int . Alternatively..

Proper way to instantiate an NSDecimalNumber from float or double

http://stackoverflow.com/questions/5304855/proper-way-to-instantiate-an-nsdecimalnumber-from-float-or-double

description @ dn1 doubleValue dn1 But as you can see from the output below it lops off some of the less significant digits n doubleValue 36.76662445068359375000 description 36.76662445068359 dn1 doubleValue 36.76662445068357953915 description..

How to create PBKDF2 key on iOS device

http://stackoverflow.com/questions/5526853/how-to-create-pbkdf2-key-on-ios-device

.h files searching for a means to make this call but have so far been unsuccessful. The key I will be using is 5 digits Salt is 12 characters Iterations is 1000 and I need a 128 bit generated key. iphone cocoa touch encryption share improve..

TextField Validation With Regular Expression

http://stackoverflow.com/questions/5765654/textfield-validation-with-regular-expression

green and let it say OK else For example turn a label red and let it say Allowed or minus followed by exactly three digits Finally If you need to access the capture groups or and the number of the regular expression the following code will help..

OpenGL Texture Coordinates in Pixel Space

http://stackoverflow.com/questions/5879403/opengl-texture-coordinates-in-pixel-space

say the texture is 8 pixels wide 0 1 2 3 4 5 6 7 ^ ^ ^ ^ ^ ^ ^ ^ ^ 0.0 1.0 0 8 1 8 2 8 3 8 4 8 5 8 6 8 7 8 8 8 The digits denote the texture's pixels the bars the edges of the texture and in case of nearest filtering the border between pixels...

NSNumberFormatter to format US Telephone Numbers

http://stackoverflow.com/questions/665111/nsnumberformatter-to-format-us-telephone-numbers

on the iPhone. Here is the code I'm using which doesn't work no special format comes out and after a certain number of digits it just starts adding 0 to the end of the string. NSNumberFormatter formatter NSNumberFormatter alloc init formatter setNumberStyle..

Moving a Stick figure, anchorpoints, animation, or something else…?

http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else

node changes which is often the case for labels for example the score starts with 1 digit but increases to 2 3 and 4 digits over time. In such cases right aligning a node by modifying the anchorPoint is justified because it avoids having to recalculate..