I'm generating a PDF file and am attempting to preview it as shown below, but URL routinely returns NIL despite my formatting (which is what seems to resolve everyone else's issue with this common problem). I must be missing something more. Any ideas?
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docDirectory = [path objectAtIndex:0];
docDirectory = [docDirectory stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *URL = [[NSBundle mainBundle] URLForResource:docDirectory withExtension:#"pdf"];
if (URL) {
// Initialize Document Interaction Controller
self->documentInteractionController = [UIDocumentInteractionController interactionControllerWithURL:URL];
// Configure Document Interaction Controller
[self->documentInteractionController setDelegate:self];
// Preview PDF
[self->documentInteractionController presentPreviewAnimated:YES];
}
Your path creation seems all out of whack. Try something like this:
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docDirectory = [path objectAtIndex:0];
NSString *filename = #"myfile.pdf"; // replace with the actual filename you used
NSString *fullPath = [docDirectory stringByAppendingPathComponent:filename];
NSURL *fullURL = [NSURL fileURLWithPath:fullPath];
In the code you posted you don't provide a filename. You have the Documents directory and the pdf extension. And there is no need to "percent escape" the URL in this case.
You are probably confused of how to obtain the path to your file: NSSearchPathForDirectoriesInDomains is used to get an absolute path to (for example) your documents directory. NSBundle's URLForResource:withExtension: on the other hand searches the app wrapper for a file with the provided name.
Mixing the two would do no good. You should probably just look into the documents directory.
Related
In an app I am working on I want to have an NSMutableArray (called pathsArray) that I can read from a file in the app's directory, be able create an instance of that array that I can add objects to and/or remove objects from, and then I want to write it back to the file. I have a UILabel that shows the number of contents in this array. My problem: my code below works fine on Xcode's iOS Simulator but when I try to run the app on my actual iPhone the data isn't saved. I know there are a lot of questions on here related to this issue but i can't seem to see what I am doing wrong. Any help would be greatly appreciated.
- (void) loadArrayContents {
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
NSString* filePath = [documentsDirectory stringByAppendingString:#"theArray"];
//Objects contained in an array returned by 'initWithContentsOfFile' are immutable even if the array is mutable
NSArray* contentsArray = [[NSMutableArray alloc] initWithContentsOfFile:filePath];
pathsArray = [[NSMutableArray alloc] initWithArray:contentsArray];
}
and...
- (void) saveArrayContents {
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
NSString* filePath = [documentsDirectory stringByAppendingString:#"theArray"];
[pathsArray writeToFile:filePath atomically:YES]);
}
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:#"theArray"];
should solve the issue. The problem with
NSString *filePath = [documentsDirectory stringByAppendingString:#"theArray"];
is that it does not add / in the file path.
I am having random error while reading saved photos from document directory in iPhone. I save photos taken from my app to document directory and then read it from there next time when user come back. However, after XCode 6 & base SDK change to 8.1, this document directory path keeps changing. So sometime I found photos and sometime not.
I read few posts online thats says that not Apple differentiate App from Data and that's why this issue coming up. Anyone has any thoughts on this? Any solution?
This is how I save file to document Directory
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirectory = [path firstObject];
NSString *filePath = [documentDirectory stringByAppendingPathComponent:#"key"];
[image writeToFile:path atomically:YES];
And this is how I read it:
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirectory = [path firstObject];
NSString *filePath = [documentDirectory stringByAppendingPathComponent:#"key"];
UIImage *cellImage = [[UIImage alloc] initWithContentsOfFile:filePath];
Go to Product - Scheme - Edit Scheme - Options - Working Directory and specify working directory
Hi I'm using the following code to play an audio file
NSString *stringPath = [[NSBundle mainBundle]pathForResource:#"audioFileName" ofType:#"mp3" inDirectory:#"/Downloads"];
NSURL *url = [NSURL fileURLWithPath:stringPath];
NSError *error;
avPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:url error:&error];
avPlayer.delegate = self;
[avPlayer play];
But I get an error because my audio files I located in a folder called "Downloads"
Path: AppName/Library/ApplicationSupport/Downloads/audioFileName.mp3
The error I get is that the string stringPath is nil probably because that line of code is written wrong. I know for sure the file is there!
Heres an image using file browsing software
So my question how do i modify the above code to point to my downloads directory when playing a audio file. Thanks
Ive even tried putting the whole path like this.
NSString *stringPath = [[NSBundle mainBundle]pathForResource:#"audioFileName" ofType:#"mp3" inDirectory:#"Library/Application Support/Downloads"];
Status update!
I now do the following and the error is gone but not sure if its pointing to the correct folder still and if so is it possible I don't have permissions to use the files within it. This is a directory i created so is changing permissions to it after its created something I had too do?
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *libraryDirectory = [paths objectAtIndex:0];
NSString *stringPath = [[libraryDirectory stringByAppendingPathComponent:#"Downloads"] stringByAppendingPathComponent:#"audioFileName.mp3"];
I believe pathForResource is only for files you include with your app. You have made the audio file in the Library folder which is not in your .app folder... so you could try to use something like:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *libraryDirectory = [paths objectAtIndex:0];
NSString *stringPath = [[libraryDirectory stringByAppendingPathComponent:#"Downloads"] stringByAppendingPathComponent:#"audioFileName.mp3"];
Usually it's the other way around, you use the path to display the image. I was wondering if you can get the path if you already have the image.
if you already have the image i.e. have added the file to your resources, you can use this to get the file path;
NSString *string = [[NSBundle mainBundle] pathForResource:#"IMAGE_FILE_NAME" ofType:#"jpg"]; // or ofType:#"png", etc.
I don't believe it is possible to get it directly from UIImage.
Best way is to save the image in a directory, then you will have the file path.
//image is your UIImage;
if (image != nil)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString* path = [documentsDirectory stringByAppendingPathComponent:
#"test.png" ];
NSData* data = UIImagePNGRepresentation(image);
[data writeToFile:path atomically:YES];
}
path will be your filepath.
Once a UIImage is created, the image data is loaded into memory and no longer connected to the file on disk. As such, the file can be deleted or modified without consequence to the UIImage and there is no way of getting the source path from a UIImage.
I have my code all set up to actually record the files. What I need, though, is a way to see where they are all saved and list them in a UITableView. I'm not asking the the implementation for the table; I only need a way to see where they are all saved.
All your data is saved into your application's document folder. You can access it with:
NSString *documentsDirectory;
NSArray *paths = NSSearchPathForDirectoriesInDomains
(NSDocumentDirectory, NSUserDomainMask, YES);
if ([paths count] > 0) {
documentsDirectory = [paths objectAtIndex:0];
}
Assign an array to get a list of all your recorded files.
Your url where you are going to save the recorded file:
NSURL *urlOfRecordedFile = [NSURL fileURLWithPath:[NSString stringWithFormat:#"5#/recordFile.caf",[[NSBundle mainBundle] resourcePaht]]];
And here is the actual path of you file
NSLog(#"%#",url);