nsdata

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Unzipping file on the device crashes due to timeout

I am trying to unzip a file which is being downloaded through URL. The file downloaded is in zip format. I have used library : iPhone Unzip code which has SSZipArchive Library. It is used in current c[详细]

2023-03-19 18:24 分类：问答
Convert BLOB image from NSData to NSString so it can be displayed in HTML UIWebView

So I successfully retrieved my BLOB image from the database and set it to NSData *content.. content = [[NSData alloc][详细]

2023-03-19 02:54 分类：问答
What kind of data does apple use on GLPaint example?

Few months ago i made an app based on apple GLPaint. It worksgreat. I have recorded sets of points that draw simple drawings on the screen. and saved them as array of points (converted to NSValue).[详细]

2023-03-19 00:33 分类：问答
Objective-C NSData initWithContentsOfFile, check if file exists?

Should I check if a file exists at a given path when trying to read the data into an NSData object? Right now I\'m not doing at the moment but my code works since my array that is supposed to get popu[详细]

2023-03-17 22:43 分类：问答
asyncSocket writeData crashes with different NSData

If I use thisto set up NSData then the writeData method crashes. NSString *test = @\"The quick brown fox jumped over the lazy dog\\r\\n\";[详细]

2023-03-17 05:45 分类：问答
clear cache and memory after using NSdata to download a PDF

How would I go about cleaning the cache data and other memory while using this code? CFData (store) on simulator keeps on growing....[详细]

2023-03-17 04:00 分类：问答
AES256 use XML file

hi friend i want saveobjNSData in my xml file and later i want read my data from file xml and decryptand i want use this code,haw i can convert NSMutableData to string and later convert NSString to NS[详细]

2023-03-16 22:24 分类：问答
Quickest way to be sure region of memory is blank (all NULL)?

If I have an unsigned char *data pointer and I want to check whether size_t length of the data at that pointer is NULL, what would be the fastest way to do that? In other words, what\'s the fastest wa[详细]

2023-03-16 20:28 分类：问答
Copy SQLite Database from URL to Local Path

What can I use to copy a remote database to a local path? success = [FileManager copyItemAtURL:dbPath toPath:databasePath error: &error];[详细]

2023-03-16 18:47 分类：问答
NSString initWithData returns nil

I work with server. I send request to the server and it answers me in UTF-8 encoding, but when I try to decode byte array to the string, sometimes I get nil value. How can I decode this bytes array wi[详细]

2023-03-16 07:33 分类：问答