I have a strange problem, this code check if a file exist inside document folder:
- (BOOL) checkIfFileExist:(NSString *)path {
NSArray *documentsPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [documentsPaths objectAtIndex:0];
NSString *fileDaControllere = [documentsDirectory stringByAppendingString:path];
if ([[NSFileManager defaultManager] fileExistsAtPath:fileDaControllere]) {
NSLog(@"exist");
return YES;
}
else {
NSLog(@"not exist");
return NO;
}
}
the problem is that I get alway file not exist while the file exist (in this case the path is Style.css)! where is the mistake? The path seems to be correct:
Path: /Users/kikko/Library/Application Support/iPhone Simulator/6.0/Applications/38161AFA-2740-4BE2-9EC4-C5C6B317D270/Documents/Style.css
Here you can see the path on xcode and real path
The problem may be in the fact that you just append the file without with check if there is a path delimitor:
NSString *fileDaControllere = [documentsDirectory stringByAppendingString:path];
Thus you would become something like ../DocumentsStyle.css
but it should be ../Documents/Style.css
.
NSString
has a special method for appending path components stringByAppendingPathComponent:
NSString *fileDaControllere = [documentsDirectory stringByAppendingPathComponent:path];
At the end I solved this issue, the strange think is that I don't know how I solved it, the first problem is that I pass to checkIfFifFileExist the absolute path while I need to pass it relative path, and the the function trasform it to absolute path (my big big error), after this I think the problem is the use of "/", I delete all and rewrite all the code and I doing some test.
I copy folder from bundle:
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [documentPaths objectAtIndex:0];
NSString *folderPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"/icone"];
NSString *iconePath = [documentsDir stringByAppendingPathComponent:@"/icone"];
[[NSFileManager defaultManager] copyItemAtPath:folderPath toPath:iconePath error:nil];
Then I make the path of my image in this way:
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [documentPaths objectAtIndex:0];
NSString *imagePath = [documentsDir stringByAppendingPathComponent:self.objMateria.iconaMateria];
and now the file exist, a strange thing is that if:
self.objMateria.iconaMateria = /icona/Home/fisica.png
or
self.objMateria.iconaMateria = icona/Home/fisica.png
nothing change, I see the image, while I think that one of this has a wrong path...
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