How to get file from destination path - objective-c

Question

I dont know about how to open NSFileManager.
How to open NSFileManager in iPhone and upload document from NSFileManager please suggest any easy way.
How can open it and upload the document and also get the path for saved file.
Where I can find file physically.(Any location).
::EDIT::
I started coding in that year. so, i don't know about basic of NSFileManager.

Answer 1

Show contents:
NSLog(#"Documents directory: %#", [fileMgr contentsOfDirectoryAtPath:documentsDirectory error:&error]);
Get all files
//get an instance of the File Manager
NSFileManager *fileManager = [NSFileManager defaultManager];
//we'll list file in the temporary directory
NSString * strPath = NSTemporaryDirectory();
//we'll need NSURL for the File Manager
NSURL *tempDirURL = [NSURL fileURLWithPath:strPath];
//An array of NSURL object representing the path to the file
//using the flag NSDirectoryEnumerationSkipsHiddenFiles to skip hidden files
NSArray *directoryList = [fileManager contentsOfDirectoryAtURL:tempDirURL
includingPropertiesForKeys:nil
options:NSDirectoryEnumerationSkipsHiddenFiles error:nil];
Reference:http://www.ios-developer.net/iphone-ipad-programmer/development/file-saving-and-loading/using-the-document-directory-to-store-files
http://nshipster.com/nsfilemanager/

Answer 2

An iPhone's documents directory is used for saving data. We can save some personal data like as file, image, video etc. The document's directory's data will remain in the iPhone's memory until the application is forcibly terminated.
Let's see an example of how to store some images & retrieve those images later in an iPhone.
// For saving the images in the Document's Directory
-(void)saveImagesInIPhone:(NSData*)imageData withName:(NSString*)imageName
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//Get the docs directory
NSString *documentsDirectoryPath = [paths objectAtIndex:0];
NSString *folderPath = [documentsDirectoryPath stringByAppendingPathComponent:#"IconImages"]; // subDirectory
if (![[NSFileManager defaultManager] fileExistsAtPath:folderPath])
[[NSFileManager defaultManager] createDirectoryAtPath:folderPath withIntermediateDirectories:NOattributes:nil error:nil];
//Add the FileName to FilePath
NSString *filePath = [folderPath stringByAppendingPathComponent:[iconName stringByAppendingFormat:#"%#",#".png"]];
//Write the file to documents directory
[imageData writeToFile:filePath atomically:YES];
}
Result:- /var/mobile/Applications/20F869FD-5C61-4900-8CFE-830907731EC9/Documents/Designer0.png
///To retrieve the images from the document Directory
-(UIImage*)retrieveImageFromPhone:(NSString*)fileNamewhichtoretrieve
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//Get the docs directory
NSString *documentsPath = [paths objectAtIndex:0];
NSString *folderPath = [documentsPath stringByAppendingPathComponent:#"IconImages"]; // subDirectory
NSString *filePath = [folderPath stringByAppendingPathComponent:
[fileNamewhichtoretrieve stringByAppendingFormat:
#"%#",#".png"]];
if([[NSFileManager defaultManager] fileExistsAtPath:filePath])
return [[UIImage alloc] initWithContentsOfFile:filePath];
else
return nil;
}
result :- /var/mobile/Applications/20F869FD-5C61-4900-8CFE-830907731EC9/Documents/Designer0.png

Answer 3

You can get Directory Path like this..
-(NSString *)getDBPath
{
//Searching a standard documents using NSSearchPathForDirectoriesInDomains
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDir = [paths objectAtIndex:0];
NSLog(#"I am in --> getDBPath==%#",paths);
return [documentDir stringByAppendingPathComponent:#"abcd_DB.sqlite"];
}
**If you are using iOS Devices-
You can get Your DB directly by using https://macroplant.com/iexplorer Application.
**If you are using Simulator.
Get the Path directory
In terminal : open directory Path(Past your Directory Path).
Copy your DB and brows it with Firefox or sqlite browser.