Nstimeinterval is a double floating point type so you get the seconds. How to avoid whose view is not in the window hierarchy error when presenting a. This is a mapping to the objectivec nsstring class. Im working on an iphone app nothing fancy, just playing around with the sdk but i cant seem to find a way to do such a simple thing as to convert between ints and strings. I was looking to be able see the data in one of my sqlite3 database tables on the iphone in the console, but could not find a nice and easy way to do this. In this tutorial you will learn to use the three20 iphone development library that is used in the facebook iphone application to create a photo gallery to use in your next iphone application. Please take the time to read the documentation and understand the sdk in depth. How to convert an integer into a string text object. In the code of your comment, force casting with id and assigning to a different type is a. This method is meant to be called from within a variadic function, where the argument list will be available. This property uses formatting information stored in the nonlocalized value. Nsstring objects are used throughout foundation and other cocoa frameworks, serving as the basis for all textual and linguistic functionality on the platform. Nsnumber stringvalue will always return an nsstring. Apple encodes a substantial number of custom symbols and control.
Converting between strings and numbers objectivec phrasebook. All of the items in the column array need to be of type nsstring. Photo applications are very popular with iphone users. Initializes the receiver, a newly allocated nsstring object, by converting the data in a given cstring from the default cstring encoding into the unicode character encoding. Datatypes in objectivec are easy to change between. I am having trouble trying to run this test due to an error on the first line of this.
Returns an nsstring object initialized by using a given format string as a template into which the remaining argument values are substituted according to given locale information. Imagine you had an nsstring and wanted to save it as an integer value. To nsinteger string intvalue to nsnumber nsnumber numberwithint. The nsstring class and its mutable subclass, nsmutable string, provide an extensive set of apis for working with strings, including methods for comparing, searching, and modifying strings. How to convert an nsstring into an integer ios dev diary. This property is 0 if the string doesnt begin with a valid decimal text representation of a number. How to convert nsdate into unix timestamp iphone sdk. A unix timestamp is the number of seconds since 00. Returns an initialized nsstring object containing a given number of bytes from a. We speak with matt cutts about leading the united states digital services and the role software can play in government. How to load text file into nsstring using iphone sdk dbuggr.
I load the database when the app loads and uses the same database connection through the whole app. One of the core features of popular photo applications is the photo gallery. Nicely formatted data to debugger console for iphone sdk. The nsstring class has a bunch of conversions already built in.
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