Currently I'm trying to access the files that are transferred using the new iOS feature introduced with 3.2.
- (NSString *)getPrivateDocsDir {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
documentsDirectory = [documentsDirectory stringByAppendingPathComponent:#"Private Documents"];
NSError *error;
[[NSFileManager defaultManager] createDirectoryAtPath:documentsDirectory withIntermediateDirectories:YES attributes:nil error:&error];
return documentsDirectory;
}
// and then in a method
NSString *documentsDirectory = [self getPrivateDocsDir];
NSArray *files = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:documentsDirectory error:&error];
The problem is, this works fine in simulator, but on my iphone, the files array is empty.
Any ideas how to access this directory directly?
The Library-Directory is not accessible through iTunes, and "Private Documents" is inside this library directory.
The private documents, are, as the name suggests, private. They are intentionally not accessible through iTunes.
If you want to access the documents directory (which is accessible through itunes) replace this
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
with this:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
EDIT:
Access the files like this.
- (NSString *)documentsDirectory {
return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
}
NSString *documentsDirectory = [self documentsDirectory];
NSArray *files = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:documentsDirectory error:&error];
Related
I am saving my files in Document directory named 1.png, 2.png, 3.png, 4.png, 5.png. If I delete the original file 3.png, how do I rename files 4.png and 5.png to be called 3.png and 4.png respectively?
This is the code I am using to write the files in the first place:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
[appDel.photo addObject:#"photo"];
NSString *imageName = [NSString stringWithFormat:#"%i.png", [appDel.photo count]];
appDel.numberPhoto = [appDel.photo count];
NSString* path = [documentsDirectory stringByAppendingPathComponent:
imageName];
NSData* data = UIImagePNGRepresentation(image);
[data writeToFile:path atomically:YES];
To get NSDocuments directory use :
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:#"MyFile.txt"];
How to rename file you can find here:
How to rename a file using NSFileManager
If you do not know the names of the files in documents directory you can use :
NSArray *directoryContent = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:nil];
This array contains all filenames you need. So you can rename them all.
How can I get url path for a particular directory inside Document Directory.
like Document/Art/
My code
- (NSURL *)localRoot {
if (_localRoot != nil) {
return _localRoot;
}
NSArray * paths = [[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask];
_localRoot = [paths objectAtIndex:0];
return _localRoot;
}
The above code is url path for Documents directory but I need Art document directory path.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *yourArtPath = [documentsDirectory stringByAppendingPathComponent:#"/Art"];
Use this
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *appFile_a = [documentsDirectory stringByAppendingPathComponent:#"/Art"];
Application.StartupPath;
is used to find your path where your application is being started, if that is what you mean.
Based on above answer here is an simple methode that returns, path for given directory:
+ (NSString *) pathFor : (NSString *) directoryName{
return [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:directoryName];
}
You need to implement it in ClassName.m and call as:
NSString *pathForDirectory = [ClassName pathFor:dirName]; //#"Art" in your case
I am new programmer in objective c. I want to create "Download" directory inside the i phone(path : setting (i phone setting directory))I want to know is it possible?. I am using i phone simulator to test the program.
Another question is, How can I access created directory in i phone simulator. Below contains code I tried to create folder in i phone. But I can not access that directory by using i phone simulator. what the wrong of this code?
NSString *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:#"/Test"];
if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath])
[[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error];
you can create Directory in to Document Directory as sub Folder like this way:-
-(IBAction)CreatDirInDocDir
{
NSFileManager *filemgr = [NSFileManager defaultManager];
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *dir = [NSString stringWithFormat:#"%#",DirName];
NSString *path = [documentsDirectory stringByAppendingPathComponent:dir];
NSError *error;
if ([filemgr fileExistsAtPath:path ] == YES){
}
else
{
NSLog (#"File not found");
[[NSFileManager defaultManager] createDirectoryAtPath:path withIntermediateDirectories:NO attributes:nil error:&error];
}
}
when ever you create directory in to Document directory folder then you can get all list of Created Custom directory like this way:-
//Get all Directory
NSFileManager *fileMan = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSArray *filePathsArray = [[NSFileManager defaultManager] subpathsOfDirectoryAtPath:documentsDirectory error:nil];
NSLog(#"files array %#", filePathsArray);
NSMutableArray *directoryList=[[NSMutableArray alloc]init];
for ( NSString *direPath in filePathsArray )
{
NSString *path = [documentsDirectory stringByAppendingPathComponent:direPath];
BOOL isDir = NO;
[fileMan fileExistsAtPath:path isDirectory:(&isDir)];
if(isDir) {
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:path];
NSLog(#"log path ==%#",fullPath);
[directoryList addObject:fullPath];
}
}
NSLog(#"list path ==%#",directoryList);
Now you have array of all directory you can get any directory with index :)
Hope its helps you
All The method posted here are correct and there are tons of answers about them, but I'd like to warn you about a concept. Since The introduction of iCloud, Apple started to reject applications that saves a lot of data in document directory, when they are used by means of caches or they could be downloaded again later. The problem here is that you can backup your ios devices on the cloud and document directory is one of the backupped. Can you image yourself backupping one GB on application on the cloud? That's the explanation about apple rejects. To avoid that temp/redownloadable/cached data should be saved in cache directory. This useful dir is freed when the device is running out of space on "disk", like when you try to install a new app and you don't have enough space. So this is ok if your data can be downloaded again and are not indispensable. the other way around is to keep data in the document directory but telling the system to do not backup them, this is possible adding a special flag to the doc subdirectory where you saved the file, here is how link , pay attention that this methods is only available from 5.0.1 so you need to check its existence if you target lower ioses. In this case the system will not free your data and not backup them this is safe for apple guidelines. hope this helps
For creating directory you can use:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:#"Test"];
NSError *error;
if (![[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error])
{
NSLog(#"Couldn't create directory error: %#", error);
}
For getting the files inside that directory you can use:
NSArray *datArray = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:dataPath error:&error];
if(error)
{
NSLog(#"Could not get list from directory, error = %#",error);
}
Here all file names will be in the datArray.
No need append '/' . Just Use
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:#"Test"];
Try This
NSArray *dirPath;
NSString *docsDir;
NSFileManager *filemgr = [NSFileManager defaultManager];
dirPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docsDir = [dirPath objectAtIndex:0];
if ([filemgr changeCurrentDirectoryPath: docsDir] == NO)
{
NSLog(#"Error");
}else {
NSString *currentPath = [filemgr currentDirectoryPath];
NSLog(#"%#",currentPath);
}
NSString *dataDirectory = [docsDir stringByAppendingPathComponent:#"Test"];
if ([filemgr fileExistsAtPath:dataDirectory]){
NSLog(#"dir Exist");
}else{
NSLog(#"Creating Dir");
[filemgr createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error];
}
Anyone want to show your created directory in i phone simulator follow bellow steps :
Go to finder
Click Command +Shift + g
Type ~/Library then click Go
Open Application Support --> i phone simulator
Then you can find your created applications and directories..
I can load list of pdf files(all pdf files) from Resources folder, using this code.
NSArray *pdfs = [[NSBundle mainBundle] pathsForResourcesOfType:#"pdf" inDirectory:nil];
But I couldn't find a method to load list of pdf files from Documents Directory. The following line of code can only load one pdf at a time.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *file = [documentsDirectory stringByAppendingPathComponent:#"test.pdf"];
NSURL *urlPdf = [NSURL fileURLWithPath: file];
How could I load all pdf files from Documents Directory
Can you please give me a code example.
I was able to solve my issue using this line of code :)
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSArray *pdfs = [[NSBundle bundleWithPath:[paths objectAtIndex:0]] pathsForResourcesOfType:#"pdf" inDirectory:nil];
Go with NSFileManager's contentsOfDirectoryAtPath and filter the result by hand for pdf files.
This answer maybe helpful.
You could do this
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error = nil;
NSArray *filesAtPath = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:error];
for (NSString *path in filesAtPath)
{
if ([path rangeOfString:#".pdf"].length > 0)
{
//Do whatever you want with the pdf file
}
}
I hope it helps, cheers
I have the following code:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
However I am clueless as to how to get all the files names and assign them to an array?
Any help would be appreciated.
NSFileManager has a method called contentsOfDirectoryAtPath:error: that returns an array of all the files in that directory.
You can use it like this:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
if([paths count] > 0)
{
NSString *documentsDirectory = [paths objectAtIndex:0];
NSError *error = nil;
NSArray *documentArray = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:documentsDirectory error:&error];
if(error)
{
NSLog(#"Could not get list of documents in directory, error = %#",error);
}
}
The documentsArray object will contain a list of all the files in that directory.
Use NSFileManager's contentsOfDirectoryAtPath:error: method.
NSError *error;
NSFileManager* fileMgr = [NSFileManager defaultManager];
NSString *documentsDirectory = [NSHomeDirectory() stringByAppendingPathComponent:#"Documents"];
NSArray* documentsArray = [fileMgr contentsOfDirectoryAtPath:documentsDirectory error:&error];
[documentsArray count];
Is another way of doing this for those with a different set up.