Ill also throw in an optimal nsdata to hexstring method for good measure, hopefully to help counteract the awful practice some developers have adopted of using the nsdata description for that serialization. You then write the data object to a file using nsdatas. Jul 15, 2016 1 from nsdata to data in swift 3 swift 3 encompasses many different small and big changes to the language. We can usensstring datausingencoding function to convert nsstring to nsdata. This function returns nil if the encoding is not correct syntax of initwithdata idinitwithdata. How to convert nsdata to nsstring or vice versa in. The returned object may be different from the original receiver. In this post ill do the opposite, putting the conversion into the context how to print an nsdata object to the debugging console by default, when you print an nsdata object to the console using nslog, the output will be in hex, it will look something like the following. How can i create a nsdate object out of it and then get different components like day, month, date, year from it.
Ill also throw in an optimal nsdatatohexstring method for good measure, hopefully to help counteract the awful practice some developers have adopted of using the nsdata description for that serialization. Nsstring nsarary nsarray array str componentsseparatedbystring. Nov 20, 2014 nsdata funtestnsmutabledata thedata nsmutabledata data. I believe the issue everyone else is talking about is when we use rnencryptor to encrypt some nsstring instance to an nsdata instance and then subsequently send that data object to the server, whats sent to the server is not the encrypted string but rather the description method output.
You can create an nsnumber object from a signed or unsigned char, short int, int, long int, long long int, float, double or bool. Matts answer should take care of it, but if it absolutely doesnt and youre somehow absolutely sure that your nsdata object has valid string data in it then you can access the data directly via the data bytes method, build a traditional c stri. This function returns nil if the encoding is not correct. It defines a set of methods specifically for setting and accessing the value as a signed or unsigned char, short int, int, long int, long long int, float, or double or as a bool. Therefore the code you have quoted is obviously not going to work because your uri. Hi, i noticed a case when utf8 string is broken by 2 bytes utf8 character being 1 byte long, for example only b1100 character appears and then a valid ascii character appears after it, using your code with small modifications i was able to solve this issue, and parse the json successfully. Example implementation in progress output implementation in progress base64encodedstringwithoptions. If monomac allows you to use a record type of generic password, the password will be stored in the generic property rather than. Creating nsstring from nsdata by fixing invalid utf8 characters. Nsnumber, nsstring, nsdate, nscalendardate, nsdata to be continued classification. In the previous post i wrote a few lines of code to convert an nsstring object to an nsdata object. A protip by ironleash about objective c, nsstring, nsdate, and compare. Create a base64 encoded nsstring from the receivers contents using the given options.
You can create an nsnumber object from a signed or unsigned char, short int. Since this issue is still open, id like to add my voice to it as well although im using nodejs not php. The foundation kit, or just foundation for short, is an objectivec framework in the openstep. Loadfromdatadata always returns null and that was working on ios 8. Nsnumber is an objectivec class, a subclass of nsvalue to be specific. How to test the size of an nsdictionary in bytes ios dev diary. Additionally, nsdata provides a handful of methods for copy bytes from the data object into a buffer. Nsnumber is a subclass of nsvalue that offers a value as any c scalar numeric type. If you arent sure whether a class supports nscoding, check its class documentation. Mar 12, 20 convert nsdata to nsstring in the previous post i wrote a few lines of code to convert an nsstring object to an nsdata object. When swift originally launched, nsstring older ios strings and native swift strings were completely interchangeable, as were nsarray and swift arrays, plus nsdictionary and swift dictionaries. Below example explains how to convert nsdata to nsstring with objectivec using nsstring initwithdata function we can convert nsdata to nsstring. This tutorial help you how to using nslog print nsstring format.
How to convert nsdata to nsstring or vice versa in objective. Nsdata and its mutable subclass nsmutabledata provide data objects, objectoriented wrappers for byte buffers. So lets utilize our awesome method swizzling to be able to configure the description of nsdata. I need to transmit an integer through gamekit using senddatatoallpeers. Nsdata is just a bucket for bytes and has no knowledge of the data contained therein. Depending on whether you are passing in an array of nsnumber or an array of nsstring, youll basically need to loop over the contents of the.
In files where you want to use base64 encodingdecoding, simply include the header file and use one of the provided nsdata or nsstring additions. Creating nsstring from nsdata by fixing invalid utf8. The first way to create a pdf uses nsviews datawithpdfinsiderect method and is the manner in which pdf generation is commonly shown. When you are not sure of what objects you will be getting back e. Nsdatafuntestnsmutabledata thedata nsmutabledata data. Converting an int into an nsnumber, then saving to an. Heres an example of saving a dictionary object to a file. To access the buffer directly, use the bytes method, which returns a pointer to the buffer. Data set is the result of commissioned questions in the atlantic quarterly omnibus public opinion survey conducted in november and december 2017. Were writing an ios mobile app in objectivec that makes posts to our asp. In essence, nsdata is an objectivec wrapper around a c data buffer.
Examples of nsnumber conversion to and from bool, double, int, float, double, integer, char, signed, long, string, comparison of nsnumber. Jun 29, 2011 if i understand your question correctly, then the following will work. Optional numbers can be stored using an nsnumber property which is tagged. Nsvalue is a wrapper class for c data types, and nsnumber is a wrapper class for c number data types such as int. How to convert nsarray of nsnumbers into nsdata stack overflow. Nsstring is immutable, and thus can only be initialized but not modified.
To nsinteger string intvalue to nsnumber nsnumber numberwithint. How to convert a hexadecimal nsstring to nsdata quora. This class is used to store immutable data as a string of bytes. An nsstring object initialized by converting the bytes in data into utf16 code units using encoding. What is the correct way to print an nsstring in objective in nslog. A property list is itself an array or dictionary that contains only nsdata, nsstring, nsarray, nsdictionary, nsdate, and nsnumber objects. Nsstring, nsdata, nsnumber, nsdate, nsarray, nsdictionary these are the only objectivec data types that property list supports. One of them is the introduction of value type wrappers for common foundation reference types such as nsdata data or nsdate date. To create a pdf with it, you simply create a nsdata object by passing datawithpdfinsiderect the bounds of the view that you want to save. How to convert nsdata to nsstring or vice versa in objective c and swift.
Extends string class import foundation extension string func base64encoded string let plaindata datausingencodingnsutf8stringencoding let base64string plaindatabase64encodedstringwithoptionsomraw0. Contains primary, secondary, tertiary and subtertiary watersheds. Nsstringnsarary nsarray array str componentsseparatedbystring. Nslog print nsstring example we provides the code and examples of print nsstring nslog. How to convert nsdata bytes into nsnumber or nsinteger. These commissioned questions relate to public opinion regarding perceptions of immigration. Objectivec strings the string in objectivec programming language is represented using nsstring and its subclass nsmutablestring provides several ways for creating string objects. Create a base64, utf8 encoded nsdata from the receivers contents using the given options. Fromstring, but those functions do entirely different things. Dec 29, 2008 nsnumber is an objectivec class, a subclass of nsvalue to be specific.
Thanks converting a nsstring into nsdate converting a nsstring into nsdate hello. The number of bytes contained in the buffer is found by invoking the length method. The most basic way in which nsstring object is represented is shown below. Common nsnumber methods nsnumber numberwithintintvalue nsnumber from cs 193p at stanford university. Propertylistserialization foundation apple developer. Nsstring provides builtin support for unicode, which means that we can include utf8 characters directly in string literals. Converting nsobject to objects xamarin community forums. Nserrorfailingurlstringkeyvarmobileapplications6ef91ece9e7a40199f076dfe028effeadocuments.
Returns nil if the initialization fails for some reason for example if data does not represent valid data for encoding. In this post ill do the opposite, putting the conversion into the context how to print an nsdata object to the debugging console. For custom classes, you must add the encodewithcoder. Toobject would adding the following to the nsnumber switch. If i understand your question correctly, then the following will work.