If i go to the point then my problem is, i want to make a web view where it will load a video and when stream starts then i want to download/store that video data in the resource folder of the application.How can i do that?
Please somebody help me by any kinds of help.
BR
Emon
In the run time you can't save a video to resource folder but you can save files in to
NSDocuments and retrive them using NSFileManagers.Go through this link
http://www.techotopia.com/index.php/Working_with_Files_on_the_iPhone
Try with this Code to save a file
NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [NSString stringWithFormat:#"%#/filename.MP4",documentsDirectory];
NSData* videoData = [NSData dataWithContentsOfURL:[NSURL URLWithString:#"your Url"]];
[[NSFileManager defaultManager] createDirectoryAtPath:filePath withIntermediateDirectories:YES attributes:nil error:nil];
[filemanager createFileAtPath:filePath contents:videoData attributes:nil];
To retrive:
NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [NSString stringWithFormat:#"%#/filename.MP4",documentsDirectory];
BOOL exists = [fm fileExistsAtPath:newDirectory isDirectory:&isDir];
if (exists) {
//Play Video with contents of file path.
}
Related
In my Application i save Recording file in Document Directory.then later gets all these file from document directory and showing all these files in My mainClass where i have UITableview for it.
When i Click on any row of this mainClass Tableview it goes to next Class where i play this file,delete this file and Send this file to my Favourite Recording Class where i have Tableview for it.Now my play button action method and delete Button action method works fine but i Don't know how to send this file to my Favurite Class Tableview.now i show here my delete button Code through which we can get the basic idea.
-(IBAction)deleteFile
{
NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsDir = [dirPaths objectAtIndex:0];
NSString *documentPath = [docsDir stringByAppendingPathComponent:#"MyRecordings"];
NSString *soundFilePath = [documentPath stringByAppendingPathComponent:fileToPlay];
recordedTmpFile = [NSURL fileURLWithPath:soundFilePath];
[[NSFileManager defaultManager] removeItemAtURL:recordedTmpFile error:nil];
}
As my Delete button Code show how we delete the Current Recording file which i selected from MainTableview .Now if the user Want to send the current Recording file to my Favourite Class Tableview instead of Deleting it then Whether i use the another Document folder here if answer is yes? then how we can save the Current file(recordedTmpFile) in this new Document folder.
-(IBAction)AddToFavourite
{
NSArray *dirPaths1 = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsDir1 = [dirPaths1 objectAtIndex:0];
NSString *documentPath1 = [docsDir1 stringByAppendingPathComponent:#"MyFovouriteRecordings"];
// How to pass here the Current Recording File (recordedTmpFile) to this new document Folder.
}
When i NSlog recordedTmpFile it show result :file://localhost/Users/Umar/Library/Application%20Support/iPhone%20Simulator/4.2/Applications/9219677A-B0E3-4B78-B2E5-FEA49D689618/Documents/MyRecordings/06:Dec:12_05:54:07%20PM+Active%20song
Any Help will be appriated.Thanks
-(IBAction)AddToFavourite {
NSArray *dirPaths1 = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsDir1 = [dirPaths1 objectAtIndex:0];
NSString *documentPath1 = [docsDir1 stringByAppendingPathComponent:#"MyFovouriteRecordings"];
NSString *soundFilePath1 = [documentPath1 stringByAppendingPathComponent:fileToPlay];
// How to pass here the Current Recording File (recordedTmpFile) to this new document Folder.
// First check if the directory existst
if([[NSFileManager defaultManager] fileExistsAtPath:documentPath1]==NO) {
NSLog(#"Creating content directory: %#",documentPath1);
NSError *error=nil;
if([[NSFileManager defaultManager] createDirectoryAtPath:documentPath1 withIntermediateDirectories:NO attributes:nil error:&error]==NO) {
NSLog(#"There was an error in creating the directory: %#",error);
}
}
//then get the origin file path
NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsDir = [dirPaths objectAtIndex:0];
NSString *documentPath = [docsDir stringByAppendingPathComponent:#"MyRecordings"];
NSString *soundFilePath = [documentPath stringByAppendingPathComponent:fileToPlay];
//Then convert paths to URL
NSURL* originURL = [NSURL fileURLWithPath:soundFilePath];
NSURL* destinationURL = [NSURL fileURLWithPath:soundFilePath1];
//Then, you have to copy the file
[[NSFileManager defaultManager] copyItemAtURL:destinationURL toURL:originURL error:NULL];
}
That should do it, tell me if there is any error.
Just create an instance of NSData with your original file. Than write it to the other location.
//write file to the other location
NSData *myData = [[NSData alloc] initWithContentsOfFile:originalPath];
[myData writeToFile:newDataPath options:NSDataWritingAtomic error:&error];
//delete file from original location
NSFileManager *fileManager = [[NSFileManager alloc] init];
[fileManager removeItemAtPath:originalPath error:&removeError];
I'm new with iPhone development. I want to download a pdf using url and want to store it in a local folder.
Here is my code:
NSData *d = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:#"http://demo.com/ebookapplication/book_pdf/20111108094614hii.pdf"]];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"myfile.pdf"];
[d writeToFile:path atomically:YES];
if (![[NSFileManager defaultManager] fileExistsAtPath:path])
{
NSString *myPathInfo = [[NSBundle mainBundle] pathForResource:#"myfile" ofType:#"pdf"];
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager copyItemAtPath:myPathInfo toPath:path error:NULL];
}
NSURL *pdfurl = [NSURL fileURLWithPath:path];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:pdfurl];
[detail.bookweb loadRequest:requestObj];//to display data in web view
This code is working for display pdf in web view using url, but it doesn't work for storing pdf in our local system. Actually I want to store these downloaded pdf in one folder and and display it in library format. Please help.
-writeToFile:Atomically has already placed your file in the folder you've specified in the -copyItemAtPath:toPath: method, and is thus redundant. The document was already in the documents directory folder, you then copied it over to the same directory! I think that's your problem.
EDIT:
This Line HERE:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"myfile.pdf"];
specifies your path.
You can NSLog it with this line: NSLog(#"Document Path = %#", path);
As for your library comment, it shouldn't be that hard. My app, which basically does this already, wires
AQGridView: https://github.com/AlanQuatermain/AQGridView
And Apple's Docwatcher class from DITableView: http://developer.apple.com/library/ios/samplecode/DocInteraction/Listings/Classes_DITableViewController_h.html
Together to create an app that trolls the documents directory and adds files to an NSArray which are then displayed by the grid. A simpler approach would just be to use the DITableViewController though, considering it solves your problems, it's just the grid was for a little more pizzaz.
i have 3NSString objects that i want to save to a new file when the app is running.
this will help me for remote debug!
if any one can help me creating the file and save the data to it will be very use full
thanx
You can save the files to the Documents directory, here is how to get the path to that directory:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:fileName];
And a sample write statement:
NSError *error;
BOOL status = [string writeToFile:filePath atomically:YES encoding:NSUTF8StringEncoding error:&error];
In the NSString documentation there is method called writeToFile:atomically:encoding:error:.
NSError *error;
[#"Write me to file" writeToFile:#"<filepath>" atomically:YES encoding: NSUTF8StringEncoding error:&error];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents directory
NSError *error; BOOL succeed = [myString writeToFile:[documentsDirectory stringByAppendingPathComponent:#"myfile.txt"]
atomically:YES encoding:NSUTF8StringEncoding error:&error];
if (!succeed){
// Handle error here }
source.
Here is how to save NSString into Documents folder. Saving other types of data can be also realized that way.
- (void)saveString:(NSString *)stringToSave toDocumentsWithFilename:(NSString *)fileName {
NSString *documentsFolder = [NSHomeDirectory() stringByAppendingPathComponent:#"Documents"];
NSString *path = [documentsFolder stringByAppendingPathComponent:fileName];
[[NSFileManager defaultManager] createFileAtPath:path contents:[stringToSave dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];
}
Usage:
NSString *stringWeWantToSave = #"This is an elephant";
NSString *fileName = [NSString stringWithString:#"savedString.txt"];
[self saveString:stringWeWantToSave toDocumentsWithFilename:fileName];
I'm developing an iPhone application and i need to download and Save mp3 media on the iPhone and play it,
I fished the downloading work and i put the data in NSMutableData variable But How can i save these data as mp3 file
any advice :)
If you want to save it to your applications Documents directory with a .mp3 file extension you can use the following:
NSString *mp3FileName = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask,
YES) lastObject]
stringByAppendingPathComponent:#"MyFileName.mp3"];
[[NSFileManager defaultManager] createFileAtPath:mp3FileName
contents:mp3Data
attributes:nil];
Where mp3Data is your NSMutableData. I use code similar to the above for saving PDF documents, custom file formats, jpgs and all sorts. I've not had cause to try mp3 yet but there's no reason why it shouldn't.
To read the file back into NSData to send to AVAudioPlayer:
NSString *mp3FileName = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask,
YES) lastObject]
stringByAppendingPathComponent:#"MyFileName.mp3"];
NSData *mp3Data = [NSData dataWithContentsOfFile:mp3FileName];
avAudioPlayer.data = mp3Data;
Above para of code untested, never had cause to use sounds in my apps.
here is the correct soulution appending up on #Diziet comment
'//prepare data to save in file
NSData *fileData=[[NSData alloc]initWithData:(NSData *)receivedData];
NSString *mp3FileName = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES) lastObject]stringByAppendingPathComponent:#"MyFileName.mp3"];
//create the file
[[NSFileManager defaultManager] createFileAtPath:mp3FileName contents:receivedData attributes:nil];
//load the file for playing
NSString *FileNamePath = [[NSString alloc] initWithString:#"MyFileName.mp3"];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *appSettingsPath = [documentsDirectory stringByAppendingPathComponent:FileNamePath];
NSURL *url=[[NSURL alloc]initWithString:appSettingsPath ];
player=[[AVAudioPlayer alloc]initWithContentsOfURL:url error:NULL];
player.delegate=self;
[player play];'
i must write (at start of app) and delete is content (at the end of app) a csv in my sandbox file with a stream of data.
For your experience, what's the best way to do this?
edit:
i'm trying with this:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filename =#"test.csv";
NSString *fullPathToFile = [documentsDirectory stringByAppendingPathComponent:filename];
if(![[NSFileManager defaultManager] fileExistsAtPath: fullPathToFile]) {
[[NSFileManager defaultManager] createFileAtPath: fullPathToFile contents:nil attributes:nil];
}
NSFileHandle *handle = [NSFileHandle fileHandleForWritingAtPath: fullPathToFile];
NSString *data = [NSString stringWithFormat:#"%#,%#\n", latitudine.text, longitudine.text];
[handle writeData:[data dataUsingEncoding:NSUTF8StringEncoding]];
it work but.... every time writedata is call i got only one row, no append. i want to collect all values of my two textlabel.
Where my mistake?
edit2:
yessss, find the solution with this code:
first i've create this one:
- (NSString *)dataFilePath {
NSArray *paths = NSSearchPathForDirectoriesInDomains(
NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
return [documentsDirectory stringByAppendingPathComponent:#"myfile.csv"];
}
and in my viewDidLoad i check and if does not exist, create my file
if (![[NSFileManager defaultManager] fileExistsAtPath:[self dataFilePath]]) {
[[NSFileManager defaultManager] createFileAtPath: [self dataFilePath] contents:nil attributes:nil];
NSLog(#"Route creato");
}
and in one of my method i add the code for retrieve data and append to my file:
NSString *data = [NSString stringWithFormat:#"%#,%# ", latitudine.text, longitudine.text];
//create my data to append
NSFileHandle *handle;
handle = [NSFileHandle fileHandleForWritingAtPath: [self dataFilePath] ];
//say to handle where's the file fo write
[handle truncateFileAtOffset:[handle seekToEndOfFile]];
//position handle cursor to the end of file
[handle writeData:[data dataUsingEncoding:NSUTF8StringEncoding]];
//write data to with the right encoding
Hope this helps!
If you put it in NSTemporaryDirectory(), I think it's supposed to be cleaned up on app exit — it's probably worth checking if this is the case.