I'm new to mac app development.
I have set of data in the nstableview and i need to save this data in .cs format progarmmatically.
-(IBAction)exportInvoice:(id)sender
{
AppDelegate *appDelegate = [NSApp delegate];
NSString *tempStr = [NSString stringWithFormat:#"%#", [OrderModel getInitialOrderBITToDisplay:[appDelegate getDBPath]]];
NSArray* commaSeparatedObjects = [tempStr componentsSeparatedByString:#","];
//NSString *commaSeparatedObjects = [tempStr componentsJoinedByString:#","];
NSLog(#"%#",commaSeparatedObjects);
NSSavePanel *pdfSavingDialog = [NSSavePanel savePanel];
[pdfSavingDialog setRequiredFileType:#"csv"];
if ( [pdfSavingDialog runModalForDirectory:nil file:nil] == NSOKButton ) {
// NSData *dataForPDF = [self exportPdfData];
NSData *dataForPDF = [NSKeyedArchiver archivedDataWithRootObject:commaSeparatedObjects];
NSLog(#"%#",dataForPDF);
[dataForPDF writeToFile:[pdfSavingDialog filename] atomically:NO];
}
}
Can anyone help me to sort the problem?
You should check out CHCSVParser: https://github.com/davedelong/CHCSVParser
Hope that helps.
Related
- (void)readFolder:(NSString *)str :(NSMutableDictionary *)dict {
NSArray *appFolderContents = [[NSArray alloc] init];
appFolderContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:str error:nil];
for (NSString *app in appFolderContents) {
if ([app containsString:#".app"])
{
NSString *appName = [[app lastPathComponent] stringByDeletingPathExtension];
NSString *appPath = [NSString stringWithFormat:#"%#/%#", str, app];
NSString *appBundle = [[NSBundle bundleWithPath:appPath] bundleIdentifier];
// NSLog(#"%# -- %#", appPath, appBundle);
NSArray *jumboTron = [NSArray arrayWithObjects:appName, appPath, appBundle, nil];
[dict setObject:jumboTron forKey:appName];
}
}
}
//This searches for apps
- (void)getAPPList {
NSMutableDictionary *myDict = [[NSMutableDictionary alloc] init];
[self readFolder:#"/Applications" :myDict];
[self readFolder:#"/Applications/Utilities" :myDict];
[self readFolder:#"/System/Library/CoreServices" :myDict];
[self readFolder:#"/Volumes/Macintosh HD/Applications" :myDict ];
// Volumes not named 'Macintosh HD' doesn't work, I'm trying to make it work
[self readFolder:#"/Volumes/*/Applications" :myDict ];
//Some apps are stored in the user's Application folder instead of the main one
[self readFolder:[NSString stringWithFormat:#"%#/Applications", NSHomeDirectory()] :myDict];
//Sometimes people keep apps in Downloads
[self readFolder:[NSString stringWithFormat:#"%#/Downloads", NSHomeDirectory()] :myDict];
//Some apps are stored in the user's Library/Application Support sometimes
[self readFolder:[NSString stringWithFormat:#"%#/Library/Application Support", NSHomeDirectory()] :myDict];
I'm trying to make line 26 ([self readFolder:#"/Volumes/*/Applications" :myDict ]) search all volumes, instead of only searching a volume with a matching/specific name. How can I do this?
I'm using Xcode 9.2
something like this should do the trick (untested)
NSArray *keys = [NSArray arrayWithObjects:NSURLVolumeURLKey, NSURLIsVolumeKey, nil];
NSArray *volumeUrls = [[NSFileManager defaultManager] mountedVolumeURLsIncludingResourceValuesForKeys:keys options:NSVolumeEnumerationSkipHiddenVolumes];
for (NSURL *volumeUrl in volumeUrls)
{
BOOL mayBeBootVolume = NO;
NSString* pathToVolume = [volumeUrl path];
[self readFolder: [pathToVolume stringByAppendingString: #"/Applications"];
}
I am creating a application that screenshot the mac desktop...
But I am having 2 problems:
what is the "global" directory of desktop?
In my computer is /Users/miguelcosta/Desktop/ but i want a directory that works for all macs..
My second problem is:
When you screenshot he creates a image on your desktop with the name Result.jpg. However when you take another screenshot he replace the previous screenshot... So I was thinking how can I save this images always with a different name...
Here is my code:
NSString *targetPath =#"/Users/miguelcosta/Desktop/Result.jpg";
NSData *imageData = [newImage TIFFRepresentation];
NSBitmapImageRep *imageRep = [NSBitmapImageRep imageRepWithData:imageData];
NSDictionary *imageProps = [NSDictionary dictionaryWithObject:[NSNumber numberWithFloat:0.9] forKey:NSImageCompressionFactor];
imageData = [imageRep representationUsingType:NSJPEGFileType properties:imageProps];
[imageData writeToFile:targetPath atomically:NO];
Thanks for your help!
Here is a code snippet... Refer also to this topic: Getting desktop path for current user on OS X
#import "ViewController.h"
#interface ViewController()
{
NSInteger _count;
}
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
_count = 1;
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDesktopDirectory, NSUserDomainMask, YES );
NSString* desktopPath = [paths objectAtIndex:0];
NSString *fileName = #"Result.jpg";
NSString *filePath = [NSString stringWithFormat:#"%#/%#", desktopPath, fileName];
filePath = [self filePathWithPath:filePath];
// write to file now using filePath ...
}
// generate new name ...
- (NSString*)filePathWithPath:(NSString*)filePath
{
if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) {
NSArray *parts = [[filePath lastPathComponent] componentsSeparatedByString:#"."];
NSString *name = parts[0];
NSString *ext = parts[1];
filePath = [self filePathWithPath:[NSString stringWithFormat:#"%#/%#%ld.%#", filePath, name, _count++, ext]];
}
return filePath;
}
#end
I am trying to get images on contacts,here i used UICollectionViewCell but in the collection view i didn't get image for the contact,i get only name and number.Here my code is
- (IBAction)ContactDisplay:(id)sender {
_addressBookController = [[ABPeoplePickerNavigationController alloc] init];
[_addressBookController setPeoplePickerDelegate:self];
[self presentViewController:_addressBookController animated:YES completion:nil];
}
- (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController*)peoplePicker didSelectPerson:(ABRecordRef)person
{
[self displayPerson:person];
}
- (void)displayPerson:(ABRecordRef)person
{
NSString* name = (__bridge_transfer NSString*)ABRecordCopyValue(person,
kABPersonFirstNameProperty);
NSLog(#"%#",name);
NSString* phone = nil;
ABMultiValueRef phoneNumbers = ABRecordCopyValue(person,
kABPersonPhoneProperty);
if (ABMultiValueGetCount(phoneNumbers) > 0) {
phone = (__bridge_transfer NSString*)
ABMultiValueCopyValueAtIndex(phoneNumbers, 0);
} else {
phone = #"[None]";
}
NSLog(#"%#",phone);
UIImage *img ;
if (person != nil && ABPersonHasImageData(person)) {
if ((&ABPersonCopyImageDataWithFormat) != nil ) {
img= [UIImage imageWithData:(__bridge NSData *)ABPersonCopyImageDataWithFormat(person, kABPersonImageFormatThumbnail)];
}
} else {
NSString *imageUrlString = #"http://www.google.co.in/intl/en_com/images/srpr/logo1w.png";
NSURL *url = [NSURL URLWithString:imageUrlString];
NSData *data = [[NSData alloc] initWithContentsOfURL:url];
img= [UIImage imageWithData:data];
}
NSString *string ;//
string =[NSString stringWithFormat:#"%#",img];
NSLog(#"%#",img);
self.name.text=name;
self.number.text=phone;
[self.nameArray addObject:name];
[self.imageArray addObject:string];
NSLog(#"%#",self.nameArray);
NSLog(#"%#",self.imageArray);
[self.collectionView reloadData];
[self.collectionView performBatchUpdates:^{
[self.collectionView reloadSections:[NSIndexSet indexSetWithIndex:0]];
} completion:nil];
}
finally an image array i got like this
(
"add-button.png",
"<UIImage: 0x17e56c80>, {148, 148}"
)
On image array every image like display .PNG format it will display fine ,then how can modify it.
Can you please suggest me how can you solve this,thank you.
I don't fully agree with everything you're doing there but I think you're getting your data wrong. Try using this instead when you're fetching the ABPerson image data.
if (person != nil) {
CFDataRef imageData = ABPersonCopyImageData(person);
NSData *data = CFBridgingRelease(imageData);
if (data != nil && data.length > 10){ //arbitrary length to make sure our data object isnt' really empty
img = [UIImage imageWithData:data];
} else {
NSString *imageUrlString = #"http://www.google.co.in/intl/en_com/images/srpr/logo1w.png";
NSURL *url = [NSURL URLWithString:imageUrlString];
NSData *data = [[NSData alloc] initWithContentsOfURL:url];
img= [UIImage imageWithData:data];
}
Then don't store your images as Strings in your array. Store them either as NSData or UIImage, but NOT STRINGS.
so
[myArray addObject:img]; //not the string.
And when you fetch it later, make sure you treat is as an image and not as a string
on your storyboard, select the image and look at the properties panel.
there are "Installed" options at the bottom. check the topmost "Installed" box.
I think there might be issue with conversion of image to string
NSString *string ;//
string =[NSString stringWithFormat:#"%#",img];
Add image to image array without converting to string
[self.imageArray addObject:img];
I do it like this in my app. Assuming 'person' is an ABRecordRef.
NSMutableDictionary *contactInfoDict = [[NSMutableDictionary alloc]
initWithObjects:#[#"", #"", #"", #""]
forKeys:#[#"firstName", #"lastName", #"birthday", #"picture"]];
CFTypeRef generalCFObject;
// Firtname
generalCFObject = ABRecordCopyValue(person, kABPersonFirstNameProperty);
if (generalCFObject) {
[contactInfoDict setObject:(__bridge NSString *)generalCFObject forKey:#"firstName"];
CFRelease(generalCFObject);
}
// Lastname
generalCFObject = ABRecordCopyValue(person, kABPersonLastNameProperty);
if (generalCFObject) {
[contactInfoDict setObject:(__bridge NSString *)generalCFObject forKey:#"lastName"];
CFRelease(generalCFObject);
}
// Birthday
generalCFObject = ABRecordCopyValue(person, kABPersonBirthdayProperty);
if (generalCFObject) {
[contactInfoDict setObject:(__bridge NSString *)generalCFObject forKey:#"birthday"];
NSLog(#"Date : %#", [contactInfoDict objectForKey:#"birthday"]);
CFRelease(generalCFObject);
}
// User image
CFDataRef photo = ABPersonCopyImageData(person);
if (photo) {
CFRelease(photo);
UIImage *image = [UIImage imageWithData:(__bridge NSData*)photo];
[contactInfoDict setObject:image forKey:#"picture"];
}
I have looked for an answer of a long time and still not found one so I thought I'd ask the question myself.
In my iPad app, I need to have the capability of parsing a .csv file in order to populate a table. I am using http://michael.stapelberg.de/cCSVParse to parse the csv files. However, I have only been successful in parsing local files. I have been trying to access a file from a server but am getting nowhere.
Here is my code to parse a local .csv file:
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex == 1)
{
//UITextField *reply = [alertView textFieldAtIndex:buttonIndex];
NSString *fileName = input.text;
NSLog(#"fileName %#", fileName);
CSVParser *parser = [CSVParser new];
if ([fileName length] != 0)
{
NSString *pathAsString = [[NSBundle mainBundle]pathForResource:fileName ofType:#"csv"];
NSLog(#"%#", pathAsString);
if (pathAsString != nil)
{
[parser openFile:pathAsString];
NSMutableArray *csvContent = [parser parseFile];
NSLog(#"%#", csvContent);
[parser closeFile];
NSMutableArray *heading = [csvContent objectAtIndex:0];
[csvContent removeObjectAtIndex:0];
NSLog(#"%#", heading);
AppDelegate *ap = [AppDelegate sharedAppDelegate];
NSManagedObjectContext *context = [ap managedObjectContext];
NSString *currentHeader = [heading objectAtIndex:0];
NSString *currentValueInfo = [heading objectAtIndex:1];
NSManagedObject *newObject = [NSEntityDescription insertNewObjectForEntityForName:#"Field" inManagedObjectContext:context];
[newObject setValue:#"MIS" forKey:#"header"];
[newObject setValue:currentHeader forKey:#"fieldName"];
for (NSArray *current in csvContent)
{
NSManagedObject *newField = [NSEntityDescription insertNewObjectForEntityForName:#"Field" inManagedObjectContext:context];
[newField setValue:currentHeader forKey:#"header"];
[newField setValue:currentValueInfo forKey:#"valueInfo"];
NSLog(#"%#", [current objectAtIndex:0]);
[newField setValue:[current objectAtIndex:0] forKey:#"fieldName"];
[newField setValue:[NSNumber numberWithDouble:[[current objectAtIndex:1] doubleValue]] forKey:#"value"];
}
NSError *error;
if (![context save:&error])
{
NSLog(#"Couldn't save: %#", [error localizedDescription]);
}
[self storeArray];
[self.tableView reloadData];
}
}
}
input.text = nil;
}
Forgive the weird beginning and ending brace indentation. :/
Anyway, so that is my code to take input from a user and access a file locally which I'm sure you guys have realized already. Now I want to know how to get the path of a file in my server.
Also if you guys see anything else wrong such as writing style and other bad habits please tell me as I'm new to iOS.
Thank you so much in advance! If you didn't understand my question please clarify as I'm bad at explaining myself at times! :)
As I am guessing you are trying to get data from a server's .csv file and want to show that data in table view list.
so I suggest you try to get that .csv file data in NSData and then work on that.
NSData *responseData = [NSData dataWithContentsOfURL:[NSURL URLWithString:#"serverUrl"]];
NSString *csvResponseString = [[[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding] autorelease];
NSLog(#"responseString--->%#",csvResponseString);
Now try to use nsstring's method (componentsSeparatedByString) with coma (')
arrSepratedData = [[responseString componentsSeparatedByString:#","];
Now use this arr for UITableView data populate.
I'm very new to programming, and I jumped right into a project (I know thats not the smartest thing to do, but I'm learning as I go). The app that I'm writing has 10 UIImageViews that display a picture from the users camera roll. The code I'm using needs each of the UIImageViews to have tags. I'm currently using NSData to save the array images, and it works great, but I can't use this method anymore because NSData doesn't support the use of tags. I also can't use NSUserDefaults, because I can't save images to a plist. Here is how I'm attempting to do this (using the NSData method, which works but I have to edit this so that my tags work.)
This is my current code:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)img editingInfo:(NSDictionary *)editInfo {
if (imageView.image == nil) {
imageView.image = img;
[self.array addObject:imageView.image];
[picker dismissModalViewControllerAnimated:YES];
[self.popover dismissPopoverAnimated:YES];
return;
}
if (imageView2.image == nil) {
imageView2.image = img;
NSLog(#"The image is a %#", imageView);
[self.array addObject:imageView2.image];
[picker dismissModalViewControllerAnimated:YES];
[self.popover dismissPopoverAnimated:YES];
return;
}
...
- (void)applicationDidEnterBackground:(UIApplication*)application {
NSLog(#"Image on didenterbackground: %#", imageView);
[self.array addObject:imageView.image];
[self.array addObject:imageView2.image];
[self.user setObject:self.array forKey:#"images"];
[user synchronize];
}
- (void)viewDidLoad
{
self.user = [NSUserDefaults standardUserDefaults];
NSLog(#"It is %#", self.user);
self.array = [[self.user objectForKey:#"images"]mutableCopy];
imageView.image = [[self.array objectAtIndex:0] copy];
imageView2.image = [[self.array objectAtIndex:1] copy];
UIApplication *app = [UIApplication sharedApplication];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(applicationDidEnterBackground:)
name:UIApplicationDidEnterBackgroundNotification
object:app];
[super viewDidLoad];
}
Any help or suggestions on how to edit this code so that I can save the images, while using tags is much appreciated, thanks!
EDIT: Here is my updated code:
-(IBAction)saveButtonPressed:(id)sender {
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES) objectAtIndex:0];
for (UIImageView *imageView in self.array) {
NSInteger tag = self.imageView.tag;
UIImage *image = self.imageView.image;
NSString *imageName = [NSString stringWithFormat:#"Image%i.png",tag];
NSString *imagePath = [docsDir stringByAppendingPathComponent:imageName];
[UIImagePNGRepresentation(image) writeToFile:imagePath atomically:YES];
}
NSLog(#"Saved Button Pressed");
}
- (void)applicationDidEnterBackground:(UIApplication*)application {
}
-(void)viewDidLoad {
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES) objectAtIndex:0];
NSArray *docFiles = [[NSFileManager defaultManager]contentsOfDirectoryAtPath:docsDir error:NULL];
for (NSString *fileName in docFiles) {
if ([fileName hasSuffix:#".png"]) {
NSString *fullPath = [docsDir stringByAppendingPathComponent:fileName];
UIImage *loadedImage = [UIImage imageWithContentsOfFile:fullPath];
if (!imageView.image) {
imageView.image = loadedImage;
} else {
imageView2.image = loadedImage;
}
}
}
}
You need to use "Fast Enumeration" to parse the array's objects, and write each object to disk sequentially. First, you're going to need to add the UIImageView objects to the array instead of the UIImage property of the UIImageView, so you can recover the tag. So instead of writing
[self.array addObject:imageView.image];
It will be
[self.array addObject:imageView];
Try to follow along with my code. I inserted comments on each line to help.
-(void)applicationDidEnterBackground:(UIApplication *)application {
//Obtain the documents directory
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainmask,YES) objectAtIndex:0];
//begin fast enumeration
//this is special to ObjC: it will iterate over any array one object at a time
//it's easier than using for (i=0;i<array.count;i++)
for (UIImageView *imageView in self.array) {
//get the imageView's tag to append to the filename
NSInteger tag = imageView.tag;
//get the image from the imageView;
UIImage *image = imageView.image;
//create a filename, in this case "ImageTAGNUM.png"
NSString *imageName = [NSString stringWithFormat:#"Image%i.png",tag];
//concatenate the docsDirectory and the filename
NSString *imagePath = [docsDir stringByAppendingPathComponent:imageName];
[UIImagePNGRepresentation(image) writeToFile:imagePath atomically:YES];
}
}
To load the images from disk, you'll have to look at your viewDidLoad method
-(void)viewDidLoad {
//get the contents of the docs directory
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainmask,YES) objectAtIndex:0];
//Get the list of files from the file manager
NSArray *docFiles = [[NSFileManager defaultManager]contentsOfDirectoryAtPath:docsDir error:NULL]);
//use fast enumeration to iterate the list of files searching for .png extensions and load those
for (NSString *fileName in docFiles) {
//check to see if the file is a .png file
if ([fileName hasSuffix:#".png"]) {
NSString *fullPath = [docsDir stringByAppendingPathComponent:fileName];
UIImage *loadedImage = [UIImage imageWithContentsOfFile:fullPath];
//you'll have to sort out how to put these images in their proper place
if (!imageView1.image) {
imageView1.image = loadedImage;
} else {
imageView2.image = loadedImage;
}
}
}
}
Hope this helps
One thing you need to be aware of is that when an app enters the background it has about 5 seconds to clean up its act before it's suspended. The UIPNGRepresentation() function takes a significant amount of time and is not instantaneous. You should be aware of this. It would probably be better to write some of this code in other places and do it earlier than at app backgrounding. FWIW
You can use the [NSbundle Mainbundel] to store that images.
To get path
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
First, there's still a problem in your for loop.
for (UIImageView *imageView in self.array) {
NSInteger tag = self.imageView.tag;
UIImage *image = self.imageView.image;
// ...
}
Before you make any other changes, you must understand why. imageView is your for loop control variable, which changes on each iteration through the loop. self.imageView is a different thing. It is the first of the 10 imageViews attached to your viewController. Every time this loop cycles, it looks at the first imageView, and only the first.
As for why saving doesn't work, it's probably because the arrays elsewhere aren't working. Add some logging to make sure there's something in the array, and that it has as many elements as you expect.
-(IBAction)saveButtonPressed:(id)sender {
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES) objectAtIndex:0];
// Log to make sure the views expected have previously been stored.
// If the array is empty, or shorter than expected, the problem is elsewhere.
NSLog(#"Image view array before saving = %#", self.array);
for (UIImageView *imageViewToSave in self.array) {
NSInteger tag = imageViewToSave.tag;
UIImage *image = imageViewToSave.image;
NSString *imageName = [NSString stringWithFormat:#"Image%i.png",tag];
NSString *imagePath = [docsDir stringByAppendingPathComponent:imageName];
// Log the image and path being saved. If either of these are nil, nothing will be written.
NSLog(#"Saving %# to %#", image, imagePath);
[UIImagePNGRepresentation(image) writeToFile:imagePath atomically:NO];
}
NSLog(#"Save Button Pressed");
}