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Answer 1

+1 A:

See the NSFileManager class reference and especially the - (BOOL)createFileAtPath:(NSString *)path contents:(NSData *)contents attributes:(NSDictionary *)attributes.

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flohei 2010-08-17 08:37:52

@flohei, thank you for your reply. And I want to ask, where does the file store in the iPhone?

Questions 2010-08-17 09:11:06

It stores the file at the path you hand over as the first parameter. You can get your documents directory like this:`NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectoryPath = [paths objectAtIndex:0];`

flohei 2010-08-17 09:18:44

@flohei, thank you for your reply. I still have a problem, can you show the steps on how to open the file on the iPhone?

Questions 2010-08-18 00:58:24

There are multiple ways. See the `NSString` class reference, for example:http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html#//apple_ref/occ/clm/NSString/stringWithContentsOfFile:encoding:error:

flohei 2010-08-18 07:55:41

Answer 2

+2 A:

Read the NSString documentation ? It took me 10seconds :

- (BOOL)writeToFile:(NSString *)path atomically:(BOOL)useAuxiliaryFile encoding:(NSStringEncoding)enc error:(NSError **)error

Benj 2010-08-17 08:38:02

@Benj, thank you for your reply. I want to ask where does the file store in the iPhone?

Questions 2010-08-17 09:11:34

@MarkSiu wherever you tell it to (as long as you have permission to write there). That's the purpose of the `path` parameter.

Dave DeLong 2010-08-17 14:44:27

Answer 3

+1 A:

To learn more about file paths on the iPhone, read Files and File System in the iOS Application Programming Guide.

johnnieb 2010-08-17 14:17:47

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