I have saved many files in a folder in the documents directory. This is the path to one of them:
/var/mobile/Applications/120FD973-C902-405E-A645-B1651904CE9B/Documents/1127029/BusinessCard2258009241.card
I want to list the files in the folder (1127029), and I tried this:
NSFileManager *fManager = [NSFileManager defaultManager];
NSString *item;
NSArray *contents = [fManager contentsOfDirectoryAtPath:[NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:#"Documents/%d", FolderNumber]] error:nil];
// >>> this section here adds all files with the chosen extension to an array
for (item in contents){
if ([[item pathExtension] isEqualToString:#"card"]) {
...
But it doesn't work
Don't try to get to the documents directory that way. It won't work. Use this code fragment instead:
NSString *docsPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
Then use stringByAppendingPathComponent: to add the subdirectory name.
Related
I want to retrieve all the pdf documents from my iPhone, including all the pdf files that are stored in other apps like Adobe Acrobat.
What I have now is:
NSString *path = [NSSearchPathForDirectoriesInDomains(NSAllLibrariesDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSArray *directoryContent = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:nil];
for (NSString *fileName in directoryContent) {
if ([fileName hasSuffix:#"pdf"]) {
//add files to an array
}
}
Which only points to one directory.
Firstly you are only getting the first path to the first directory, so you're only searching that one. Secondly, apple suggests to use the NSFileManager to search. Thirdly, be aware that developers of other apps can save their documents in different places, that you can't access or are not returned by these functions (Just so you are aware of this).
If you want to get array of all pdf files in Document directory, then use below code:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSArray *arrPdfs = [[NSBundle bundleWithPath:[paths objectAtIndex:0]] pathsForResourcesOfType:#"pdf" inDirectory:nil];
arrPdfs will contain all pdfs in Document directory.
I need to get the already existing pdf files in the device and to upload the selected pdf to the server. I've added one pdf file to iBooks and then tried searching that file in directory using this code:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSFileManager *fileManager = [NSFileManager defaultManager];
//NSError *error = nil;
NSArray *filesAtPath = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:nil];
NSLog(#"filesAtpath:%#",filesAtPath);
for (NSString *path in filesAtPath)
{
NSLog(#"add..");
if ([path rangeOfString:#".pdf"].length > 0)
{
//Do whatever you want with the pdf file
NSLog(#"pdf: %#",path);
}
}
but the log shows empty array, could you please tell me, is there any other method to get the pdf list in the device and select one to upload in the server.
No, Apple does not provide access to iBooks library in the same way that it provides some access to the Music library.
In my application I download PDF files which gets stored in "Document" directory under different sub folders.
Now I have file name for which I want to get its path in "Document" directory but problem is I don't know the exact sub folder under which that file is stored.
So is there any method which will give me file path by file's name like there is one method which works for main bundle:
(NSString *)pathForResource:(NSString *)name ofType:(NSString *)extension
I don't want to iterate through each folder which is a tedious way.
Thanks.
You can search the documents directory like this:
NSString *searchFilename = #"hello.pdf"; // name of the PDF you are searching for
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSDirectoryEnumerator *direnum = [[NSFileManager defaultManager] enumeratorAtPath:documentsDirectory];
NSString *documentsSubpath;
while (documentsSubpath = [direnum nextObject])
{
if (![documentsSubpath.lastPathComponent isEqual:searchFilename]) {
continue;
}
NSLog(#"found %#", documentsSubpath);
}
EDIT:
You can also use NSPredicate. If there are many thousands of files in the documents directory, this might crash with an out of memory error.
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"self.lastPathComponent == %#", searchFilename];
NSArray *matchingPaths = [[[NSFileManager defaultManager] subpathsAtPath:documentsDirectory] filteredArrayUsingPredicate:predicate];
NSLog(#"%#", matchingPaths);
Swift 2.2 pretty simple:
let paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first! as NSString
let plistPath = paths.stringByAppendingPathComponent("someFile.plist")
You'll have to walk the tree to find the file; there's no equivalent to -pathForResource:ofType that works in the ~/Documents directory.
I have a plist file I just created of strings; it looks like this:
This is the code I'm using to create the path to the file:
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); // Create a list of paths
NSString *documentsDirectory = [paths objectAtIndex:0]; // Get a path to your documents directory from the list
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"NailServices.plist"]; // Create a full file path
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path]) { // Check if file exists
// Get a path to the plist created before in bundle directory (by Xcode)
NSString *bundle = [[NSBundle mainBundle] pathForResource: #"NailServices" ofType: #"plist"];
[fileManager copyItemAtPath:bundle toPath: path error:&error]; // Copy this plist to your documents directory
}
This is the code I'm using to examine the data (to make sure this is working)... I'm getting a (null) back from the NSLog statement)
//Load Dictionary with wood name cross refference values for image name
NSString *plistDataPath = [[NSBundle mainBundle] pathForResource:#"NailServices" ofType:#"plist"];
NSDictionary *NailServicesDictionary = [[NSDictionary alloc] initWithContentsOfFile:plistDataPath];
NSLog(#"\nnailServicesDict: %#", NailServicesDictionary);
This is my first attempt at creating/using a "strings" plist file; I have read everything I could find on Google and SO without finding an example of a plain ol' strings file. What else do I have to do to be able to get to this plist data?
Your problem is that you are creating an NSDictionary while your plist is an NSArray. Thus, it will return nil when you try to create it as a dictionary because no dictionary exists.
You need to change:
NSDictionary *NailServicesDictionary = [[NSDictionary alloc] initWithContentsOfFile:plistDataPath];
to
NSArray *NailServicesArray = [[NSArray alloc] initWithContentsOfFile:plistDataPath];
As a commenter posted, plist files can either have an NSArray or an NSDictionary as their root. Your example plist has an NSArray as its root, so you'll want to alloc and init an NSArray, not an NSDictionary. If your plist is stored in the app bundle when you build the app in Xcode and you don't need to modify it at runtime, then it's unnecessary to copy it to the NSDocumentsDirectory. Also, I'd recommend using [paths lastObject]; rather than [paths objectAtIndex:0];, which can throw an exception if the paths array is empty.
I have created some PDF files programatically, which i am storing into the devices memory using the following code >>>>
NSString *fileName = [NSString stringWithFormat:#"SampleTextFile.pdf",strFinalString];
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *saveDirectory = [path objectAtIndex:0];
NSString *saveFileName = fileName;
NSString *documentPath = [saveDirectory stringByAppendingPathComponent:saveFileName];
I can see the file in the Devices Document folder.
I want to hide these files so that the user can not see or delete it.
Can anyone help me out to do this.
A good place to store private data is in ~/Library/Application Support/, which is the folder used on the Mac for this purpose.
You can generate a path to this folder using:
NSString *appSupportDir = [NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES) firstObject];
You'll have to create the folder yourself the first time you use it, which you can do with:
if (![[NSFileManager defaultManager] fileExistsAtPath:appSupportDir])
{
[[NSFileManager defaultManager] createDirectoryAtPath:appSupportDir withIntermediateDirectories:YES attributes:nil error:NULL];
}
I wrote a simple library that makes this and all other useful iOS folders available as methods on NSFileManager: https://github.com/nicklockwood/StandardPaths
Just prefix the filename with a dot, as in .SampleTextFile.pdf.
But the real solution is to not store the document in the NSDocumentDirectory in the first place. You should create subdirectory in the NSLibraryDirectory and store this stuff there. It also gets backed up and will not get purged like Caches and tmp, but the user cannot access it with iTunes.