Plist file path error? - iphone

I am trying to save an NSMutableArray containing text to a plist file using this code:
- (IBAction)saveDoc:(id)sender
{
NSString *typedText = typingArea.text;
NSMutableArray *totalFiles = [[NSMutableArray alloc] initWithObjects:typedText, nil];
NSLog(#"Created: %#", totalFiles);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"savedFiles.plist"];
NSLog(#"Found Path: %#", path);
//[totalFiles addObject:typedText];
[totalFiles writeToFile:path atomically:YES];
NSLog(#"File Written: %# to: %#", totalFiles, path);
[totalFiles release];
NSLog(#"Released: %#", totalFiles);
}
All of the NSLogs return appropriate values as expected. I use this code to crate a new NSMutableArray with the contents of the plist:
- (void)viewDidLoad {
file = [[NSBundle mainBundle] pathForResource:#"savedFiles" ofType:#"plist"];
NSLog(#"Got Path: %#", file);
array = [NSMutableArray arrayWithContentsOfFile:file];
NSLog(#"Loaded Array into new array: %#", array);
//UIAlertView *alert = [[[UIAlertView alloc] initWithTitle:#"fdsfasdf" message:[dic objectForKey:#"item1"] delegate:self cancelButtonTitle:#"ldfghjfd" otherButtonTitles:nil] autorelease];
//[alert show];
[super viewDidLoad];
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
//self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
The NSLogs in this code come back with a slightly different path than the first one returned with. It also said the array is (null)
How should I load the contents from a plist file?
Thanks in advance,
Tate

Try initialising your array first:
array = [[NSMutableArray alloc] initWithContentsOfFile:file];

Related

loading data from plist to another class

In my app, plist files are being saved to the documents directory, each file name is the current date+time.
I'm loading the list of files from the documents directory to a table: filesTableVC.m.
Each time I want to load the chosen file to a new class: oldFormVC.m
but this class is opened empty.
I'm not sure where the problem is.
filesTableVC.m:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
oldFormVC *oldForm = [[oldFormVC alloc] initWithNibName:nil bundle:nil];
//load previous data:
// get paths from root direcory
NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
// get documents path
NSString *documentsPath = [paths objectAtIndex:0];
// get the path to our Data/plist file
NSString *plistPath = [documentsPath stringByAppendingPathComponent:[fileList objectAtIndex:indexPath.row]];
// check to see if Data.plist exists in documents
if (![[NSFileManager defaultManager] fileExistsAtPath:plistPath])
{
// if not in documents, get property list from main bundle
plistPath = [[NSBundle mainBundle] pathForResource:#"Data" ofType:#"plist"];
}
// read property list into memory as an NSData object
NSData *plistXML = [[NSFileManager defaultManager] contentsAtPath:plistPath];
NSString *errorDesc = nil;
NSPropertyListFormat format;
// convert static property liost into dictionary object
NSDictionary *temp = (NSDictionary *)[NSPropertyListSerialization propertyListFromData:plistXML mutabilityOption:NSPropertyListMutableContainersAndLeaves format:&format errorDescription:&errorDesc];
if (!temp)
{
NSLog(#"Error reading plist: %#, format: %d", errorDesc, format);
}
// assign values
self.theDate = [temp objectForKey:#"theDate"];
self.theTime = [temp objectForKey:#"theTime"];
self.carNumber = [temp objectForKey:#"carNumber"];
self.driverName = [temp objectForKey:#"driverName"];
[self presentViewController:oldForm animated:YES completion:nil];
}
oldFormVC.m:
- (void)viewDidLoad
{
[super viewDidLoad];
dateField.text = theDate;
timeField.text = theTime;
carNumberField.text = carNumber;
driverNameField.text = driverName;
}
Write your code in viewDidAppear
- (void)viewDidAppear:(BOOL)animated
{
dateField.text = theDate;
timeField.text = theTime;
carNumberField.text = carNumber;
driverNameField.text = driverName;
}
Also, change this code in filesTableVC.m:
oldForm.dateField = [temp objectForKey:#"theDate"];
oldForm.theTime = [temp objectForKey:#"theTime"];
oldForm.carNumber = [temp objectForKey:#"carNumber"];
oldForm.driverName = [temp objectForKey:#"driverName"];
Hope it helps you

Why is my NSMutableDictionary null?

Here's my delegate method for UIAlertView. I have no idea why myWordsDictionary is null when running the app. (Note: _dailyWords is an NSDictionary object and bookmarked is an NSString object.)
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex != [alertView cancelButtonIndex]) {
NSLog(#"Clicked button index !=0");
// Add the action here
NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *myWordsPath = [documentPath stringByAppendingPathComponent:#"MyWords.plist"];
NSMutableDictionary *myWordsDictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:myWordsPath];
[myWordsDictionary setValue:[_dailyWords objectForKey:bookmarked] forKey:bookmarked];
[myWordsDictionary writeToFile:myWordsPath atomically:YES];
NSLog(#"%#", [myWordsDictionary description]);
[myWordsDictionary release];
} else {
NSLog(#"Clicked button index = 0");
// Add another action here
}
}
Thanks in advance.
myWordsPath may not contain any valid file, and you are initializing your NSMutableDictionary from content of the the file present at that path. That's why you are getting a null dictionary.
First, try check myWordsPath, if it returns null, you should look and find correct path.
Second, how you generate your plist? MyWords.plist must contain valid format. If you unsure, you should create from within XCode, there is plist object.
NSBundle *bundle = [NSBundle mainBundle];
NSString *plistPath = [bundle pathForResource:
#"MyWords" ofType:#"plist"];
NSDictionary *dictionary = [[NSDictionary alloc]
initWithContentsOfFile:plistPath];
please try this code..
NSString *documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
documentPath = [documentPath stringByAppendingPathComponent:#"MyWords.plist"];
NSMutableDictionary *myWordsDictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:documentPath];

how to write plist array of dictionary objects..dynamically and populating the tableview

m working with plist and i am new to it..
I want to save two type of values,these two are labels,i.e
label1
label2
so for that i tried to write the code but was able to save only for one
label i.e label1..in a plist and then populate it into the table so i got one value on
cell.textlabel.text = label1.text
but i need this also..
cell.detailedlabel.text = label2.text
so below is my code.. to save label1.text
-(IBAction) myBrand:(id) sender
{
NSLog(#"mylist Clicked");
NSMutableArray *array = [[NSMutableArray alloc] init];
NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES) objectAtIndex:0];
NSString *plistPath = [docsDir stringByAppendingPathComponent:#"Data.plist"];
[array addObjectsFromArray:[NSArray arrayWithContentsOfFile:plistPath]];
[array addObject:searchLabel.text];
[array writeToFile:plistPath atomically: TRUE];
}
now if i want o save one more label..in the array and populate it on cells detailedlabel..how shall i proceed..please help me out..
Hi friends..I want o have something like this....
NSMutableArray *array = [[NSMutableArray alloc] init];
// get paths from root direcory
NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
// get documents path
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES) objectAtIndex:0]; // get the path to our Data/plist file
NSString *plistPath = [docsDir stringByAppendingPathComponent:#"Data.plist"];
//This copies objects of plist to array if there is one
[array addObjectsFromArray:[NSArray arrayWithContentsOfFile:plistPath]];
//[array addObject:entity];
[array insertObject:entity atIndex:0];
[array insertObject:category atIndex:0];
NSDictionary *plistDict = [NSDictionary dictionaryWithObjects: [NSArray arrayWithObjects: entity, category, nil] forKeys:[NSArray arrayWithObjects: #"Entity", #"Category", nil]];
Regards
Ranjit
go through the portion of the code below which will solve your problem of storing both label values in plist...
NSMutableArray *data = [[NSMutableArray alloc] init];
NSMutableDictionary* newDict = [[NSMutableDictionary alloc] init];
[newDict setValue:label1.text forKey:labell]; //forKey identify the name of the array element in dictionary for plist
[newDict setValue:label2.text forKey:label2];
[data addObject:newDrink];
[newDict release];

Find Photo in Directory! (Programmatically)

Holy Dudes from stackoverflow,
MY PROBLEM: I need to send an email with 3 attachments. The first that is the .txt, is going well, no problems with him, but the problem is with the pictures. I capture a printscreen with this:
-(IBAction)screenShot{
maintimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:#selector(update) userInfo:nil repeats:YES];
}
-(void)update{
time = time + 1;
if(time == 2){
[self hideThem]; //hides the buttons
UIGraphicsBeginImageContext(self.bounds.size);
[self.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *screenImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIImageWriteToSavedPhotosAlbum(screenImage, nil, nil, nil);
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"GRAPH SAVED" message:#"YOUR GRAPH HAS BEEN SAVEN IN THE PHOTO ALBUM" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
[alert release];
[maintimer invalidate];
time = 0;
}
[self bringThem]; //brings the buttons back
}
But now i need to get this image i created! I tried using the same code i use for the text:
-(IBAction)sendMail
{
(..)
//HERE IS WHERE THE NAME IS GIVEN
NSString *filename = [NSString stringWithFormat:#"%f.txt", [[NSDate date] timeIntervalSince1970]];
//THIS IS GOING TO STORE MY MESSAGE STUFF
NSString *content = [[NSMutableString alloc]init];
(...) //LOTS OF UNNECESSARY CODE
//HERE IS WHERE IT BILDS THE FILE
[self writeToTextFile:filename content:content];
//HERE IS THE CODE WHERE IT ATTACHES THE FILE
[self sendMailWithFile:filename];
//[content release];
}
-(void)sendMailWithFile : (NSString *)file
{
//THIS IS THE CODE THAT GETS THE TEXT
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fileName = [NSString stringWithFormat:#"%#/%#", documentsDirectory, file];
NSData *data = [[NSData alloc] initWithContentsOfFile:fileName];
//THIS WAS MY TRY TO GET THE PHOTO ON THE SAME STYLE OF THE TEXT
NSArray *photoPath = NSSearchPathForDirectoriesInDomains(NSPicturesDirectory, NSUserDomainMask, YES);
NSString *photoDirectoryForFirstPhoto = [photoPath objectAtIndex:0];
NSString *photoName_First = [NSString stringWithFormat:#"%#/%#", photoDirectoryForFirstPhoto, /*I DO NOT HAVE THE PHOTO NAME*/#"FirstPhoto"];
NSData *photoData_First = [[NSData alloc] initWithContentsOfFile:photoName_First];
MFMailComposeViewController *mailComposer = [[MFMailComposeViewController alloc] init];
if ([MFMailComposeViewController canSendMail])
{
mailComposer = [[MFMailComposeViewController alloc] init];
mailComposer.mailComposeDelegate = self;
[mailComposer setSubject:#"RK4 data"];
[mailComposer addAttachmentData:data mimeType:#"text/plain" fileName:#"[RK4][EQUATION][TEXT]"];
[mailComposer addAttachmentData:photoData_First mimeType:#"image/png" fileName:#"[RK4][EQUATION][IMAGE]"];
[mailComposer setMessageBody:#"iCalculus Runge-Kutta data." isHTML:NO];
[self presentModalViewController:mailComposer animated:YES];
}
else (...)
[mailComposer release];
[data release];
}
So that's my problem. I need to find a way to get the printscreen i took and attach it.
Because i need to come up with all the attaches in the email as soon as he clicks the "SEND MAIL" button.
Thanks.
Rather than saving to your photo library, you should save to documents directory, or tmp directory, to get documents directory you can use the following.
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* dd = [paths objectAtIndex:0];
NSString *path = [dd stringByAppendingPathComponent:#"file.png"];
[UIImagePNGRepresentation(screenImage) writeToFile:path atomically:NO];
Take a look here for how to embed the image directly inside the email using base-64, that should be much cleaner than dumping temporary images to the users saved photos album.
Edit:
Category for handling base 64 with NSData, use the download towards the bottom.

How to write a plist on a device? Objective C iphone

I have this code:
#define ALERT(X) {UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Info" message:X delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];[alert show];[alert release];}
- (id)readPlist:(NSString *)fileName {
NSData *plistData;
NSString *error;
NSPropertyListFormat format;
id plist;
NSString *localizedPath = [[NSBundle mainBundle] pathForResource:fileName ofType:#"plist"];
plistData = [NSData dataWithContentsOfFile:localizedPath];
plist = [NSPropertyListSerialization propertyListFromData:plistData mutabilityOption:NSPropertyListImmutable format:&format errorDescription:&error];
if (!plist) {
NSLog(#"Error reading plist from file '%s', error = '%s'", [localizedPath UTF8String], [error UTF8String]);
[error release];
}
return plist;
}
- (void)writeToPlist: (NSString*)a
{
NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *finalPath = [path stringByAppendingPathComponent:#"data.plist"];
NSMutableArray* pArray = [[NSMutableArray alloc] initWithContentsOfFile:finalPath];
[pArray addObject:a];
[pArray writeToFile:finalPath atomically: YES];
ALERT(#"finished");
/* This would change the firmware version in the plist to 1.1.1 by initing the NSDictionary with the plist, then changing the value of the string in the key "ProductVersion" to what you specified */
}
- (void)viewDidLoad {
[super viewDidLoad];
[self writeToPlist:#"this is a test"];
NSArray* the = (NSArray*)[self readPlist:#"data"];
NSString* s = [NSString stringWithFormat:#"%#",the];
ALERT(s);
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
On the simulator the second alert shows the content of the file correctly but on the device it shows nothing?? What's i'm doing wrong? Please show a code/snippet....
The problem is that you could not write a file into mainBundle folder, only Documents folder is accessable on your Device.
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];