i am downloading a pdf file from server,and i can see the file in my simulator.But i can't find in my device. I am saving the file into the document file. Below is my code,am sure my code is perfect,
-(void)downloadPdfBtnPressed:(id)sender
{
NSString *dowloadURL = [DownloadUrlArray objectAtIndex:[sender tag ]];
NSString *filename =[dowloadURL lastPathComponent];
NSString *stringPath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0]stringByAppendingPathComponent:#"/PDFDownload"];
if (![[NSFileManager defaultManager] fileExistsAtPath:stringPath])
[[NSFileManager defaultManager] createDirectoryAtPath:stringPath withIntermediateDirectories:NO attributes:nil error:nil];
NSData *pdfData = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:dowloadURL]];
if(pdfData)
{
stringPath = [stringPath stringByAppendingPathComponent:filename];
[pdfData writeToFile:stringPath atomically:YES];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"PDF"
message:#"PDF file is downloaded"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
}
}
Related
I create a Bar button item (trash can) using storyboard.App crashes when i try to delete a file from document directory on button action. Here is code so far:
#property (retain, nonatomic) IBOutlet UIBarButtonItem *deleteCsv;
-(void)deleteCsv:(id)sender{
NSFileManager *fileManager = [NSFileManager defaultManager];
NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *filePath = [documentsPath stringByAppendingPathComponent:fileDataString4];
NSError *error;
BOOL success = [fileManager removeItemAtPath:filePath error:&error];
if (success) {
UIAlertView *removedSuccessFullyAlert = [[UIAlertView alloc] initWithTitle:#"Congratulations:" message:#"Successfully removed" delegate:self cancelButtonTitle:#"Close" otherButtonTitles:nil];
[removedSuccessFullyAlert show];
}
else
{
NSLog(#"Could not delete file -:%# ",[error localizedDescription]);
}
I think you should check first whether file exist at path or not with following code,
if ([[NSFileManager defaultManager] fileExistsAtPath:[documentsDirectory stringByAppendingPathComponent:<your file path>]])
{
//Delete your file
}
By following this you will be able to handle the crash if it is occuring because of file nonexistence
I am trying to copy a file from my bundle to the documents directory in iOS with the following code.
code:
- (NSString*)getModuleHome{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[[paths objectAtIndex:0] stringByAppendingPathComponent:#"webapp" ]stringByAppendingPathComponent:#"modules"];
return path;
}
- (void)FirstLoad{
NSError *error;
if (![[NSFileManager defaultManager] fileExistsAtPath:[self getModuleHome]]) {
//建立目录
[[NSFileManager defaultManager] createDirectoryAtPath:[self getModuleHome] withIntermediateDirectories:YES attributes:nil error:nil];
}
NSUserDefaults *userDef = [NSUserDefaults standardUserDefaults];
BLYLogInfo(#"FirstLoad");
NSString *zipPath = [[NSBundle mainBundle] pathForResource:#"" ofType:#"zip"];
NSString *path = NSTemporaryDirectory();
NSString *dataPath = [path stringByAppendingPathComponent:#"modules.zip"];
if ([[NSFileManager defaultManager] fileExistsAtPath:dataPath]) {
BLYLogInfo(#"fileExistsAtPath dataPath");
[[NSFileManager defaultManager] removeItemAtPath:dataPath error:&error];
}
if(![[NSFileManager defaultManager] copyItemAtPath:zipPath toPath:dataPath error:&error])
{
BLYLogError(#"Error copying files: %#", [error localizedDescription]);
[Bugly reportError:error];
}
BLYLogInfo(#"FirstLoad Unzip");
NSString *unZipPath = [path stringByAppendingPathComponent: #"modules"];
if ([[NSFileManager defaultManager] fileExistsAtPath:unZipPath]) {
[[NSFileManager defaultManager] removeItemAtPath:unZipPath error:&error];
}
[SSZipArchive unzipFileAtPath:dataPath toDestination:unZipPath];
BLYLogInfo(#"FirstLoad Copy");
NSString *destinationPath = [self getModuleHome];
BLYLogInfo(#"FirstLoad destinationPath:%#",destinationPath);
if ([[NSFileManager defaultManager] fileExistsAtPath:destinationPath]) {
BLYLogWarn(#"FirstLoad removeItemAtPath");
[[NSFileManager defaultManager] removeItemAtPath:destinationPath error:&error];
}
if (![[NSFileManager defaultManager] copyItemAtPath:unZipPath toPath:destinationPath error:&error]) {
BLYLogError(#"FirstLoad Error copying files: %#", [error localizedDescription]);
[Bugly reportError:error];
NSLog(#"FirstLoad Clean");
[[NSFileManager defaultManager] removeItemAtPath:dataPath error:nil];
[[NSFileManager defaultManager] removeItemAtPath:unZipPath error:nil];
//加载出错
dispatch_async(dispatch_get_main_queue(), ^{
UIAlertView* view = [[UIAlertView alloc] initWithTitle:#"提示"
message:#"抱歉，资源加载失败，请关闭重试"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:nil];
[view show];
});
}
else{
BLYLogInfo(#"FirstLoad Clean");
[[NSFileManager defaultManager] removeItemAtPath:dataPath error:nil];
[[NSFileManager defaultManager] removeItemAtPath:unZipPath error:nil];
[userDef setObject:#"NO" forKey:#"UpdateFlag"];
[userDef synchronize];
[self FirstReload];
}
}
Attach Log:
User Data: NSErrorUserInfo: { NSDestinationFilePath =
"/var/mobile/Containers/Data/Application/3575F3DD-4DC7-4472-A3D0-D4FF86C40BEF/Documents/webapp/modules/ihub/img/cat.png";
NSFilePath =
"/private/var/mobile/Containers/Data/Application/3575F3DD-4DC7-4472-A3D0-D4FF86C40BEF/tmp/modules/ihub/img/cat.png";
NSSourceFilePathErrorKey =
"/private/var/mobile/Containers/Data/Application/3575F3DD-4DC7-4472-A3D0-D4FF86C40BEF/tmp/modules/ihub/img/cat.png";
NSUnderlyingError = "Error Domain=NSPOSIXErrorDomain Code=2 \"No such
file or directory\""; NSUserStringVariant = ( Copy ); }
The app has been released.
Most phones are normal.
Only some phones have this problem.
Each log file reported errors is not the same file not exist.
SAMPLE:
NSError(NSCocoaErrorDomain:4)The
file“contractpayment-detail.html”doesn’t exist。
NSError(NSCocoaErrorDomain:4)The file “vacating.png” doesn’t exist.
NSError(NSCocoaErrorDomain:4)The file “Mode.ts” doesn’t exist.
NSError(NSCocoaErrorDomain:4)The file “SystemCtrl.js” doesn’t exist.
"Why? How to fix it？"
plz try this code
//array of main bundle images
NSMutableArray *array = [[NSMutableArray alloc]initWithObjects:#"admin_1454993109_restaurants_uploaded",
#"admin_1454993149_other_uploaded",
#"admin_1454993170_car_uploaded",
#"admin_1454993206_home_uploaded",
#"admin_1454993235_fashion_uploaded",
#"admin_1454993290_shirt_uploaded",
#"admin_1454993347_electronic_uploaded",
#"admin_1454993380_notes_uploaded", nil];
for (int i = 0; i < array.count; i++) {
// file URL in our bundle
NSURL *fileFromBundle = [[NSBundle mainBundle]URLForResource:[NSString stringWithFormat:#"%#",[array objectAtIndex:i]] withExtension:#"jpg"];
// Destination URL
NSString *path = [self MyImagesDocumentsDirectoryPath];
NSString *filePath = [NSString stringWithFormat:#"%#/%#.jpg",path,[array objectAtIndex:i]];
NSURL *destinationURL = [NSURL fileURLWithPath:filePath];
NSError *error;
if (![[NSFileManager defaultManager] fileExistsAtPath:filePath])
{
// copy it over
[[NSFileManager defaultManager]copyItemAtURL:fileFromBundle toURL:destinationURL error:&error];
NSLog(#"%#",error);
}
}
- (NSString *)MyImagesDocumentsDirectoryPath
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:#"/MyFolder"];
return dataPath;
}
here i am copying the images into MyFolder from Main bundle. you can give your zip files name and use this code.
I have a zip file of images on my backend server. I want to download the zip and unarchive the content (images) to NSArray. Is there a way to do it?
Thank you)
You could to use SSZipArchive in order to work with zip files.
Below line would unzip and assign images to a NSArray
// Unzipping
NSString *zipPath = #"path_to_your_zip_file";
NSString *destinationPath = #"path_to_the_folder_where_you_want_it_unzipped";
[SSZipArchive unzipFileAtPath:zipPath toDestination:destinationPath];
// Zipping
NSString *zippedPath = #"path_where_you_want_the_file_created";
NSArray *inputPaths = [NSArray arrayWithObjects:
[[NSBundle mainBundle] pathForResource:#"photo1" ofType:#"jpg"],
[[NSBundle mainBundle] pathForResource:#"photo2" ofType:#"jpg"]
nil];
[SSZipArchive createZipFileAtPath:zippedPath withFilesAtPaths:inputPaths];
To delete a file:
- (void)deleteFile:(NSString *)fileName
{
NSFileManager *fileManager = [NSFileManager defaultManager];
NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *filePath = [documentsPath stringByAppendingPathComponent:fileName];
NSError *error;
BOOL success = [fileManager removeItemAtPath:filePath error:&error];
if (success) {
UIAlertView *removeSuccessFulAlert=[[UIAlertView alloc]initWithTitle:#"Congratulation:" message:#"Successfully removed" delegate:self cancelButtonTitle:#"Close" otherButtonTitles:nil];
[removeSuccessFulAlert show];
}
else
{
NSLog(#"Could not delete file -:%# ",[error localizedDescription]);
}
}
when open sqlite file from mail it come to folder named inbox in my documents directory
and i use this code to copy this file to document directory
- (void) copyAdd
{
NSString *docsDir;
NSArray *dirPaths;
NSString *databasePath;
NSFileManager *filemgr = [NSFileManager defaultManager];
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docsDir = [dirPaths objectAtIndex:0];
NSString* inboxPath = [docsDir stringByAppendingPathComponent:#"Inbox"];
// Build the path to the database file
databasePath = [[NSString alloc] initWithString: [docsDir stringByAppendingPathComponent: #"CAT.sqlite"]];
if(![filemgr fileExistsAtPath:databasePath]){
[filemgr copyItemAtPath:inboxPath toPath:databasePath error:nil];
NSLog( #"copy create database");
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:#"sucess" message:#"COPY CAT DB" delegate:self cancelButtonTitle:#"dismis" otherButtonTitles:nil, nil];
[alert show];
}else{
NSLog( #"Failed to open/create database");
}
it create folder with name CAT.sqlite and inside this folder i found the dataBase CAT.sqlite
how can i copy the file named CAT.sqlite from Inbox folder to document directory without create folder with the same name .
this is my code that solve the problem the only missing thing is to specify the file name that i need to copy from the inbox folder not the all folder but CAT.sqlite folder
- (void) copyAdd
{
NSString *docsDir;
NSArray *dirPaths;
NSString *databasePath;
NSFileManager *filemgr = [NSFileManager defaultManager];
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docsDir = [dirPaths objectAtIndex:0];
NSString* inboxPath = [docsDir stringByAppendingPathComponent:#"Inbox"];
NSString *filePath = [inboxPath stringByAppendingPathComponent:#"CAT.sqlite"];
// Build the path to the database file
databasePath = [[NSString alloc] initWithString: [docsDir stringByAppendingPathComponent: #"CAT.sqlite"]];
if(![filemgr fileExistsAtPath:databasePath]){
// NSLog(#"dbPAth : %#",dbPAth);
[filemgr copyItemAtPath:filePath toPath:databasePath error:nil];
NSLog( #"copy create database");
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:#"sucess" message:#"COPY CAT DB" delegate:self cancelButtonTitle:#"dismis" otherButtonTitles:nil, nil];
[alert show];
}else{
NSLog( #"Failed to open/create database");
}
}
I am trying to delete a video from the document directory, but the video isn't deleting.
Here is how I am trying to delete the video:
//Delete Video
NSError *error = nil;
//NSData *videoData = [NSData dataWithContentsOfURL:self.finalURL];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *tempPath = [documentsDirectory stringByAppendingFormat:#"/vid1.mp4"];
[[NSFileManager defaultManager] removeItemAtPath: tempPath error: &error];
UIAlertView *removeSuccessFulAlert=[[UIAlertView alloc]initWithTitle:#"Congratulation:" message:#"Successfully removed" delegate:self cancelButtonTitle:#"Close" otherButtonTitles:nil];
[removeSuccessFulAlert show];
You might get a good hint at your problem if you put in a line after your "removeItemAtPath" that says something like:
BOOL success = [[NSFileManager defaultManager] removeItemAtPath: tempPath error: &error];
if(!success)
{
NSLog(#"error from removing item at path %# is %#",
tempPath, [error localizedDescription]);
} else {
UIAlertView *removeSuccessFulAlert=[[UIAlertView alloc]initWithTitle:#"Congratulation:" message:#"Successfully removed" delegate:self cancelButtonTitle:#"Close" otherButtonTitles:nil];
[removeSuccessFulAlert show];
}
Try this instead:
NSString *tempPath = [documentsDirectory stringByAppendingPathComponent:#"vid1.mp4"];