My Application creates Png, Pdf, and Jpg files and stores in Documentary with different name formats. How can i retrieve all filetypes at a time. For example If i want to count how many number of pdf files in documentary, where all files exists and i have to count only pdf files. How can i achieve this for particular file types.
NSFileManager *filemanage = [NSFileManager defaultManager];
NSArray *docPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSArray *filelist= [filemanage contentsOfDirectoryAtPath:[docPaths objectAtIndex:0] error:nil];
NSInteger filescount = [filelist count];
NSString *filesnumber = [NSString stringWithFormat:#"%d", filescount];
NSLog(#"filesnumber:%#", filesnumber);
fileLabel.text = filesnumber;
NSFileManager *filemanage = [NSFileManager defaultManager];
NSArray *docPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSArray *filelist= [filemanage contentsOfDirectoryAtPath:[docPaths objectAtIndex:0] error:nil];
NSInteger filescount = 0;
for (NSString *fileName in filelist) {
if ([[fileName pathExtension] isEqualToString:#"pdf"]) {
filescount++;
}
}
NSString *filesnumber = [NSString stringWithFormat:#"%d", filescount];
NSLog(#"filesnumber:%#", filesnumber);
fileLabel.text = filesnumber;
You could || the if statement to add .jpg, .png and whatever else you may want.
NSFileManager *filemanage = [NSFileManager defaultManager];
NSArray *docPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSArray *filelist = [filemanage contentsOfDirectoryAtPath:[docPaths objectAtIndex:0] error:nil];
NSInteger fileCountPDF = 0;
for (NSString *fileName in filelist) {
NSString *extension = fileName.pathExtension;
if ([extension caseInsensitiveCompare:#"pdf"] == NSOrderedSame) {
NSLog(#"PDF file found");
fileCountPDF++;
}
}
NSLog(#"PDF files: %d",fileCountPDF);
//...
Related
How can I store an image and any string value in plist as dictionary.I
have created a plist file in the project,and
also how can i append the file with same dictionary of different image and name?
Use the following code to write image & title to-gather in plist-
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"PlistName.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path])
{
path = [documentsDirectory stringByAppendingPathComponent: [NSString stringWithFormat: #"PlistName.plist"] ];
}
fileManager = [NSFileManager defaultManager];
NSMutableDictionary *dataDictionary=[NSMutableDictionary alloc] init];
[dataDictionary setObject:ImageData forKey:image];
[dataDictionary setObject:ImageTitle forKey:title];
[dataDictionary writeToFile: path atomically:YES];
And read your image & title dictionary from plist like this-
- (NSDictionary * )readDataFromPlist()
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"PlistName.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSMutableDictionary *dataDictionary;
if ([fileManager fileExistsAtPath: path])
{
dataDictionary = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
return dataDictionary;
}else
return nil;
}
You can follow this link. It provides detail how to store image to plist
Storing image in plist
And for title to store you can add new key like below.
// Get a full path to a plist within the Documents folder for the app
NSString *titleStr = #"Title Of Image";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask,
YES);
NSString *path = [NSString stringWithFormat:#"%#/YOURPLIST.plist",
[paths objectAtIndex:0]];
// Place an image in a dictionary that will be stored as a plist
[dictionary setObject:image forKey:#"image"];
[dictionary setObject:titleStr forKey:#"title"];
// Write the dictionary to the filesystem as a plist
[NSKeyedArchiver archiveRootObject:dictionary toFile:path];
I want make a zip file containing multiple documents, documents are taken from my Document Directory.
BOOL isDir=NO;
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSArray *subpaths;
for(int i=0; i<[arrdocument count]; i++)
{
NSString *toCompress = [arrdocument objectAtIndex:i];
NSString *pathToCompress = [documentsDirectory stringByAppendingPathComponent:toCompress];
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:pathToCompress isDirectory:&isDir] && isDir){
subpaths = [fileManager subpathsAtPath:pathToCompress];
} else if ([fileManager fileExistsAtPath:pathToCompress]) {
subpaths = [NSArray arrayWithObject:pathToCompress];
}
NSString *zipFilePath = [documentsDirectory stringByAppendingPathComponent:#"myZipFileName2.zip"];
ZipArchive *za = [[ZipArchive alloc] init];
[za CreateZipFile2:zipFilePath];
if (isDir) {
for(NSString *path in subpaths){
NSString *fullPath = [pathToCompress stringByAppendingPathComponent:path];
if([fileManager fileExistsAtPath:fullPath isDirectory:&isDir] && !isDir){
[za addFileToZip:fullPath newname:path];
}
}
} else {
[za addFileToZip:pathToCompress newname:toCompress];
}
}
But when I look at the zip file it shows only one document inside the zip file?
It seems like you recreate the zip file in each loop iteration. You should instead move the creation of the zip file out of the loop or just specify appending when you create the zip file like this:
[za CreateZipFile2:zipFilePath append:YES];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *zipFile = [documentsDirectory stringByAppendingPathComponent:#"compressed.zip"];
ZipArchive *zip = [[ZipArchive alloc] init];
BOOL result = [zip CreateZipFile2:zipFile];
if(result){
NSError *error;
NSArray *allFiles = arrdocument;
for(int index = 0; index<allFiles.count; index++){
id singleFileName = [allFiles objectAtIndex:index];
NSString *singleFilePath = [documentsDirectory stringByAppendingPathComponent:singleFileName];
[zip addFileToZip:singleFilePath newname:singleFileName];
}
[zip CloseZipFile2];
}else{
[self showErrorMessage:#"Unable to to create zip file. Please try again later" withTitle:#"Error"];
}
Im trying to read contents of a specific folder in documents directory thats contains only png's /Documents/ApplianceImagesFolder/
Currently I can only get all my images from documents folder, how can I target contents of ApplianceImagesFolder only?
//gets all png form documents folder
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSArray *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:documentsPath error:nil];
fileList=[[NSMutableArray alloc]init];
for (NSString *dir in dirContents) {
if ([dir hasSuffix:#".png"]) {
NSRange range = [dir rangeOfString:#"."];
NSString *name = [dir substringToIndex:range.location];
if (![name isEqualToString:#""]) {
[fileList addObject:name];
}
}
}
NSLog(#"document folder content list %# ",fileList);
Build the desired path:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *folderPath = [documentsPath stringByAppendingPathComponent:#"ApplianceImagesFolder"];
NSArray *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:folderPath error:nil];
And there's a better way to find the png files:
fileList=[[NSMutableArray alloc]init];
for (NSString *filename in dirContents) {
NSString *fileExt = [filename pathExtension];
if ([fileExt isEqualToString:#"png"]) {
[fileList addObject:filename];
}
}
NSLog(#"document folder content list %# ",fileList);
In my app I download a pdf file with an ASiHttpRequest and I have these instructions:
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
[currentDownload setDownloadDestinationPath:[documentsDirectory stringByAppendingPathComponent:#"file.pdf"]];
it work fine at first time, and I can open this file.pdf, but when I download a second time this pdf, it seems that it not replace the file but do a merge.
before I do this, but it doesn't work where is the problem, or what's the best way to delete this file.pdf from its path?
- (void) removeFile{
NSString *extension = #"pdf";
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPDF = [paths objectAtIndex:0];
NSArray *contents = [fileManager contentsOfDirectoryAtPath:documentsDirectoryPDF error:NULL];
NSEnumerator *e = [contents objectEnumerator];
NSString *filename;
while ((filename = [e nextObject])) {
if ([[filename pathExtension] isEqualToString:extension]) {
[fileManager removeItemAtPath:[documentsDirectoryPDF stringByAppendingPathComponent:filename] error:NULL];
}
}
}
EDIT
now I use this method
- (void) removeFile{
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[paths objectAtIndex:0]stringByAppendingString:#"/file.pdf"];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSLog(#"Documents directory before: %#", [fileManager contentsOfDirectoryAtPath:[paths objectAtIndex:0] error:&error]);
if([fileManager fileExistsAtPath:path] == YES)
{
NSLog(#"file exist and I delete it");
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager removeItemAtPath:path error:&error];
NSLog(#"error:%#", error);
}
NSLog(#"Documents directory after: %#", [fileManager contentsOfDirectoryAtPath:[paths objectAtIndex:0] error:&error]);
}
this method recognize that in directory there is "file.pdf" in NSLog
NSLog(#"Documents directory before: %#", [fileManager contentsOfDirectoryAtPath:[paths objectAtIndex:0] error:&error]);
but it crash after
"NSLog(#"file exist and I delete it");"
and I have only a "lldb" in consolle.
I use this method to delete pdf files from a local cache, with a few modifications you can adapt it to your necessities
- (void)removePDFFiles
{
NSFileManager *fileMngr = [NSFileManager defaultManager];
NSArray *cacheFiles = [fileMngr contentsOfDirectoryAtPath:[self cacheDirectory]
error:nil];
for (NSString *filename in cacheFiles) {
if ([[[filename pathExtension] lowercaseString] isEqualToString:#"pdf"]) {
[fileMngr removeItemAtPath:[NSString stringWithFormat:#"%#/%#", [self cacheDirectory], filename] error:nil];
}
}
}
Most probably you don't remove the file before downloading a new one and ASIHttpRequest sees that there's already a file with the same name and appends data to it instead of replacing the file. I'm not sure about the PDF format, but that shouldn't normally result in a merged readable file. In any case, first you need to use the error mechanism that the filemanager class offers you. Is bad to pass NULL. Very bad. So, create a NSError object and pass it to the contentsOfDirectoryAtPath and removeItemAtPath methods, then check the error, be sure the operations are done successfully. After that, you may want to check the extension upper case as well, as Unix based systems are case sensitive (although the simulator is not, the device is) and a example.PDF file will not get deleted based on your code.
Try the following:
-(BOOL) removePDF
{
BOOL removeStatus = NO;
NSArray *dirPaths;
NSString *docsDir;
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
docsDir = [dirPaths objectAtIndex:0];
NSString* fileName = #"file.pdf"; //your file here..
NSString* filePath = [NSString stringWithFormat:#"%#/%#", docsDir, fileName];
if([[NSFileManager defaultManager] fileExistsAtPath:filePath] == YES)
{
removeStatus = [[NSFileManager defaultManager] removeItemAtPath:filePath];
}
return removeStatus;
}
How do I retrieve image data from plist and display to that data to an image view?
- (void)getImages {
// Look in Documents for an existing plist file
NSArray *paths = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
myPlistPath = [documentsDirectory stringByAppendingPathComponent:
[NSString stringWithFormat: #"%#.plist", plistName] ];
[myPlistPath retain];
// If it's not there, copy it from the bundle
NSFileManager *fileManger = [NSFileManager defaultManager];
if ( ![fileManger fileExistsAtPath:myPlistPath] ) {
NSString *pathToSettingsInBundle = [[NSBundle mainBundle]
pathForResource:plistName ofType:#"plist"];
}
NSArray *paths = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPath = [paths objectAtIndex:0];
NSString *path = [documentsDirectoryPath
stringByAppendingPathComponent:#"myApp.plist"];
NSMutableDictionary *plist = [NSDictionary dictionaryWithContentsOfFile: path];
NSArray *imageArray = [plist objectForKey:#"imageArray"];
for (NSString *imageString in imageArray) {
DLog(#"Image Name: %#", imageString);
}
}
Get plist code from www.iphoneexamples.com