Dropbox restClient saves only files. So i want to save the image in local folder first and then to upload it, as a result it saves file, but it is corrupted.
NSString *localPath = [[NSBundle mainBundle] pathForResource:#"Info" ofType:#"plist"];
NSString *jpegFilePath = [NSString stringWithFormat:#"%#/test.jpeg",localPath];
NSData *data2 = [NSData dataWithData:UIImageJPEGRepresentation(image, 1.0f)];
[data2 writeToFile:jpegFilePath atomically:YES];
NSString *filename = #"test.jpeg";
NSString *destDir = #"/";
[[self restClient] uploadFile:filename toPath:destDir
withParentRev:nil fromPath:localPath];
I am an idiot, solved
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[paths objectAtIndex:0] stringByAppendingString:#"test.jpg"];
NSData * data = [NSData dataWithData:UIImageJPEGRepresentation(image, 1.0f)];
[data writeToFile:path atomically:YES];
[self.restClient uploadFile:#"test.jpg" toPath:#"/" withParentRev:nil fromPath:path];
you will have to call DBRestClient methods from the main thread or a thread that has a run loop. Otherwise the delegate methods will not be called.
what you will have to do is first alloc init yoir DBRestClient object then make it's delegate self and then you can easily upload your file.below is an example
NSString *destDir = #"/";
restClient = [[DBRestClient alloc] initWithSession:[DBSession sharedSession]];
restClient.delegate = self;
[restClient uploadFile:yourfilename toPath:destDir withParentRev:nil fromPath:sourcepath];
Happy Coding!!!!!!
You can't save into the bundle. You should use documents or cache folder:
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
Related
It would seem that my apps no longer are able to save files to their documents folder when doing this:
NSString *path = [documentsDirectory stringByAppendingPathComponent:fileName];
NSData *dta = [[NSData alloc] init];
dta = [NSData dataWithContentsOfFile:path];
NSLog(#"writing file: %#", path);
if ([dta writeToFile:path options:NSAtomicWrite error:nil] == NO) {
NSLog(#"writeToFile error");
}else {
NSLog(#"Written: %#", path);
[self addSkipBackupAttributeToItemAtURL:[NSURL fileURLWithPath:path]];
}
I do get "Written" in the log with the full path:
Written: /var/mobile/Containers/Data/Application/ECBCD65D-A990-4758-A07F-ECE48E269278/Documents/9d440408-4758-4219-9c9c-12fe69cf82f2_pdf.pdf
And as long as I don't quit the app I can load the PDF in a UIWebView like this (pdfPath is a string that I pass to the function that loads the PDF file):
[www loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:pdfPath]]];
Any help at all is as always greatly appreciated.
Okay, after mucking about I found that since the documents directory changes path every time I run the app, I had to:
Write the file to the documents folder with the complete path to
the file:
NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory, NSUserDomainMask ,YES );
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent: fileName];
NSData *dta = [[NSData alloc] init];
dta = [NSData dataWithContentsOfFile:path];
if ([dta writeToFile:path options:NSAtomicWrite error:nil] == NO) {
NSLog(#"writeToFile error");
}else {
NSLog(#"Written: %#", path);
[self addSkipBackupAttributeToItemAtURL:[NSURL fileURLWithPath:path]];
}
Save only the file name to my database
Load the file by using the full newly generated Documents directory path and append the file name from my database:
NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent: pdfPath];
I tried this with no luck:
NSData *imageData = UIImageJPEGRepresentation([sight.photo valueForKey:#"image"], 0.8);
NSString *docsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *filePath = [docsPath stringByAppendingPathComponent:#"sound.m4a"];
NSURL *fileUrl = [NSURL fileURLWithPath:filePath];
NSData *aacData = [sight.sound valueForKey:#"soundrecord"];
[aacData writeToURL:fileUrl atomically:YES];
// NSString *text = self.textField.text;
NSArray *items = #[imageData, aacData];
Yes, but you need to pass the audio file URL to the activity sheet rather than the NSData.
NSString *docPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0];
NSString *filePath = [docPath stringByAppendingPathComponent:#"sound.aac"];
NSURL *fileUrl = [NSURL fileURLWithPath:filePath isDirectory:NO];
NSArray *activityItems = #[fileUrl];
UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
[self presentViewController:activityVC animated:YES completion:nil];
If you find that the attachment doesn't appear when launching the email composer from the activity sheet, make sure your file path and URL are correct and that the file exists (including the extension on the device/simulator drive).
To open a file on the simulator, go to folder (~/Library/Application Support/iPhone Simulator/...
To check the file name on device, go to XCode Organizer Window and select the Applications tab within the debugging device connected. You should see the file structure on the main panel.
Is there a way to write a string , which is read from text field, to a .txt file?
NSString *input = [textfield text];
NSString *path = #"myText.txt";
[input writeToFile:path atomically:YES encoding:NSUTF8StringEncoding error:NULL];
Yes, ultimately that is the way; but there's a number of other steps you do in order to get from start to finish (you need to have textfield connected to an IBOutlet or in some other way accessible; the path where myText.txt is writing to needs to be writable and therefore you'd probably need to have a longer, more precise path than just the filename; you'd probably need to also send in an actual error parameter that could be set so you could look at the errors being returned when the writeToFile call fails the first few times you run this code).
You will need to define a path, basically where to save the file.
This code will find the Documents folder
NSArray *path = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirPath = [path objectAtIndex:0];
Here is the code I use to read and write files.
-(void)writeFileToDisk:(id)data
{
NSArray *path = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirPath = [path objectAtIndex:0];
NSString *fileName = #"MyFileName.txt";
NSString *fileAndPath = [documentDirPath stringByAppendingPathComponent:fileName];
[data writeToFile:fileAndPath atomically:YES];
}
-(void)readFileFromDisk
{
NSArray *path = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirPath = [path objectAtIndex:0];
NSString *fileName = #"MyFileName.txt";
NSString *fileAndPath = [documentDirPath stringByAppendingPathComponent:fileName];
NSArray *array = [[NSArray alloc] initWithContentsOfFile:fileAndPath];
NSLog(#"%#",array);
[array release];
}
Currently i'm using these codes to save my images into NSDocumentDirectory. I use this counter as the naming convention for them.
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)selectedImage editingInfo:(NSDictionary *)editingInfo
{
[self.popoverController dismissPopoverAnimated:YES];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDir stringByAppendingPathComponent:[NSString stringWithFormat:#"%d.png", counter]];
UIImage *image = imageView.image;
NSData *imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:NO];
}
I use this method because it's easier for me to retrieve all of them by using a loop. I want to retrieve all the images from the NSDocumentDirectory so that i can display them in another view. The following codes show how i retrieve them.
-(NSMutableArray *)GetImage:(NSMutableArray *)arrayImgNames
{
NSMutableArray *tempArray;
for(int i=0;i<[arrayImgNames count]; i++)
{
NSArray *paths1 = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths1 objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent: [arrayImgNames objectAtIndex:i]];
[tempArray addObject:[[UIImage alloc] initWithContentsOfFile:filePath]];
return tempArray;
}
}
However, i do not wish to use the counter as a naming convention for my images. I want to use proper names for them but if i do so, i will have to change my method of retrieving all the images.
Is there any other way that i can retrieve all images other than this method i mentioned?
You can retrieve files using next approach:
NSURL *url = [[AppDelegate sharedAppDelegate] applicationDocumentsDirectory];
NSError *error = nil;
NSArray *properties = [NSArray arrayWithObjects: NSURLLocalizedNameKey, NSURLLocalizedTypeDescriptionKey, nil];
NSArray *files = [[NSFileManager defaultManager] contentsOfDirectoryAtURL:url
includingPropertiesForKeys:properties options:(NSDirectoryEnumerationSkipsPackageDescendants)
error:&error];
In files paths to all files of documents directory will be stored. Next code will help you to get there names:
NSURL *url = [files objectAtIndex:index];
NSString *localizedName = [url lastPathComponent];
i have a local html file that i can display on UIWebview now is there a way like i can pass my string value to that html page and display the content???
this is how i am loading html
NSString *urlAddress = [[NSBundle mainBundle] pathForResource:#"index4" ofType:#"html"];
NSURL *instructionsURLd = [[NSURL alloc] initFileURLWithPath:urlAddress];
[webView loadRequest:[NSURLRequest requestWithURL:instructionsURLd]];
now index4.html content is
<html>
<body>
testing hhhhhhhhhhhhhhhhhhhhhhhhhhhhh
index1
<TD><INPUT TYPE=BUTTON OnClick="Circle_calc(this.form);" VALUE="calculate"></TD>
</body>
</html>
//
now lets say i have NSString s=#"hello"
now can i add this value to the < body > tag of html and show in UIwebview??
You cannot store mutable (changing) objects in your application bundle. However, you can put them there before building you app, open them when the app is executing, and write them to disk, and modify them whenever you want, after that.
Your code
NSString *s;
s = #"hello";
NSString *urlAddress = [[NSBundle mainBundle] pathForResource:#"index4" ofType:#"html"];
NSURL *instructionsURLd = [[NSURL alloc] initFileURLWithPath:urlAddress];
NSError *error;
When your starts for the first time only Grab the resource and store it into a string
NSString *myHTML = [NSString stringWithContentsOfURL:instructionsURLd encoding:NSASCIIEncoding error:&error];
Immediately write the data to disk
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSData *myData = [NSData dataWithBytes:[myHTML UTF8String] length:[myHTML lengthOfBytesUsingEncoding:NSUTF8StringEncoding]];
NSString *appFile = [documentsDirectory stringByAppendingPathComponent:#"index4.html"];
[myData writeToFile:appFile atomically:YES];
Then, load it when you need it
NSArray *paths2 = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory2 = [paths2 objectAtIndex:0];
NSString *appFile2 = [documentsDirectory2 stringByAppendingPathComponent:#"index4.html"];
NSData *mySavedData = [[[NSData alloc] initWithContentsOfFile:appFile2] autorelease];
NSString *myNewHTML = [[NSString alloc] initWithData:mySavedData encoding:NSUTF8StringEncoding];
Insert s into the HTML document
myNewHTML = [myHTML stringByReplacingOccurrencesOfString:#"<body>" withString:[NSString stringWithFormat:#"<body> %#",s]];
Write everything back to the file
NSArray *paths3 = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory3 = [paths objectAtIndex:0];
NSMutableData *myData3 = [NSData dataWithBytes:[myNewHTML UTF8String] length:[myNewHTML lengthOfBytesUsingEncoding:NSUTF8StringEncoding]];
NSString *appFile3 = [documentsDirectory3 stringByAppendingPathComponent:#"index4.html"];
NSData *myNewData = [NSData dataWithBytes:[myNewHTML UTF8String] length:[myNewHTML lengthOfBytesUsingEncoding:NSUTF8StringEncoding]];
[myNewData writeToFile:appFile3 atomically:YES];
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You can simply do this by creating javascript method in HTML and then call it via IOS if you want to pass that string to html from IOS