Re: Why the file does not open
Re: Why the file does not open
- Subject: Re: Why the file does not open
- From: Jens Alfke <email@hidden>
- Date: Tue, 10 Feb 2009 08:55:12 -0800
On Feb 10, 2009, at 8:43 AM, Gabriele Palmas wrote: I have a file in my project called track.aif. When I run my app the file cannot be found because the this set of following instructions don't work as suppose to.
- (BOOL)getFilename:(char*)buffer maxLenth:(int)maxBufferLength
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
You're looking in the wrong directory. Data files in an app live in the Contents/Resources/ subdirectory by default. (See the Apple docs on the structure of a bundle, if you want the gory details.) There are API calls to find resources. You should be locating this file via:
[[NSBundle mainBundle] pathForResource: @"track" ofType: @"aif"] return [file getCString:buffer maxLength:maxBufferLength encoding:NSUTF8StringEncoding];
This will basically work, but it's wiser not to rely on the fact that the filesystem uses UTF-8 encoding (since there are a few edge cases involving Unicode minutae that make my head spin.) Instead, use
return [file fileSystemRepresentation];
This returns a const char* suitable for use with file system calls that take C strings. (You don't have to free that pointer; it's autoreleased for you.)
—Jens |
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