I've been trying to write data back to a pre-defined plist file (data.plist) in my bundle. Using the code below I call the routine 'dictionaryFromPlist' to open the file and then call 'writeDictionaryToPlist' to write to the plist file. However, no data gets added to the plist file.
NSDictionary *dict = [self dictionaryFromPlist];
NSString *key = #"Reports";
NSString *value = #"TestingTesting";
[dict setValue:value forKey:key];
[self writeDictionaryToPlist:dict];
- (NSMutableDictionary*)dictionaryFromPlist {
NSString *filePath = [[NSBundle mainBundle] pathForResource:#"data" ofType:#"plist"];
NSMutableDictionary* propertyListValues = [[NSMutableDictionary alloc]
initWithContentsOfFile:filePath];
return [propertyListValues autorelease];
}
- (BOOL)writeDictionaryToPlist:(NSDictionary*)plistDict{
NSString *filePath = #"data.plist";
BOOL result = [plistDict writeToFile:filePath atomically:YES];
return result;
}
The code runs through successfully and no error is thrown but no data is added to my plist file.
You can not write to your bundle, it is read only. If your case though, you are writing to a relative path, not to the bundle.
I'm not sure what the default working directory is for iOS apps. It is best to use absolute paths. You should be writing to the documents/cache directory. Something like this will get the path for you:
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
Then just grab the lastObject and prepend that to your file name.
As mentioned by #logancautrell you can not write in mainbundle, you can save your plist in the app documents folder, you could do so:
NSString *path = #"example.plist";
NSArray *paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
NSString *basePath = ([paths count]> 0)? [paths objectAtIndex: 0]: nil;
NSString *documentPath = [basePath stringByAppendingPathComponent:path] // Documents
NSFileManager *fileManager = [NSFileManager defaultManager];
BOOL checkfile = [fileManager fileExistsAtPath: documentPath];
NSLog(#"%#", (checkFile ? #"Exist": #"Not exist"));//check if exist
if(!checkfile) {//if not exist
BOOL copyFileToDoc = [yourDictionary writeToFile:documentPath atomically: YES];
NSLog(#"%#",(copyFileToDoc ? #"Copied": #"Not copied"));
}
Related
I have a folder called 'thepdfpowerpoints'. I simply want to at launch, create a PLIST file that will create an entry for each PDF in the folder showing the path to that particular file. I have the following set up, and it puts the right number of entries, but each entry is the same path listed 399 times.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"mastersonglist.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path]) {
path = [documentsDirectory stringByAppendingPathComponent: [NSString stringWithFormat:#"mastersonglist.plist"] ];
}
NSMutableDictionary *data;
if ([fileManager fileExistsAtPath: path]) {
data = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
}
else {
// If the file doesn’t exist, create an empty dictionary
data = [[NSMutableDictionary alloc] init];
}
NSBundle *bundle = [NSBundle mainBundle];
self.files = [bundle pathsForResourcesOfType:#"pdf" inDirectory:#"thepdfpowerpoints"];
NSMutableArray *names = [NSMutableArray arrayWithCapacity:[self.files count]];
for (NSString *pathoffile in self.files) {
pathoffile = [self.files objectAtIndex:thepath.row];
[names addObject:pathoffile];
}
for (NSString *test in names) {
test = [self.files objectAtIndex:thepath.row];
[data setObject:names forKey:#"thename"];
[data writeToFile:path atomically:YES];
}
I have a graphical application with some predefined tool configurations. At the first lunch of the application I would like to copy these default configuration files into ~/Library/Containers//Data/Library/... from the inside of the bundle. How to do that?
Try this it'll help you.
-(void)copy
{
NSFileManager *filemanager = [NSFileManager defaultManager];
NSError *error;
NSString *path = [self getPath];
BOOL sucess = [filemanager fileExistsAtPath:path];
if(!sucess){
NSString *defaultPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"/*put your assets name with extension here */"];
sucess = [filemanager copyItemAtPath:defaultPath toPath:path error:&error];
if (!sucess) {
NSAssert1(0, #"Failed '%#'.", [error localizedDescription]);
}
}
}
-(NSString *) getPath{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
return [documentsDir stringByAppendingPathComponent:#"/*put your assets name with extension here */"];
}
I know how to create plist file but I need to delete plist file.
But I don't know how to do this.
- (NSString *) save
{
NSArray *path =
NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
return [[path objectAtIndex:0] stringByAppendingPathComponent:#"save.plist"];
}
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager removeItemAtPath:myPath error:NULL];
you should use file io method and then delete the file! search file io in programming language your working
I'm making an app where I need to copy certain file from the app bundle to the user's Application Support folder. This is the code I'm using actually:
NSBundle *thisBundle = [NSBundle mainBundle];
NSString *executableName = [[[NSBundle mainBundle] infoDictionary] objectForKey:#"CFBundleExecutable"];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);
NSString *userpath = [paths objectAtIndex:0];
userpath = [userpath stringByAppendingPathComponent:executableName]; // The file will go in this directory
NSString *saveFilePath = [userpath stringByAppendingPathComponent:#"db.sqlite"];
NSFileManager *fileManager = [[NSFileManager alloc] init];
[fileManager copyItemAtPath:[thisBundle pathForResource:#"db" ofType:#"sqlite"] toPath:saveFilePath error:NULL];
But this doesn't copies anything, BTW this is a Mac app.
Finally got it working with adding
if ([fileManager fileExistsAtPath:userpath] == NO)
[fileManager createDirectoryAtPath:userpath withIntermediateDirectories:YES attributes:nil error:nil];
And the resulting code is:
NSBundle *thisBundle = [NSBundle mainBundle];
NSString *executableName = [[[NSBundle mainBundle] infoDictionary] objectForKey:#"CFBundleExecutable"];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);
NSString *userpath = [paths objectAtIndex:0];
userpath = [userpath stringByAppendingPathComponent:executableName]; // The file will go in this directory
NSString *saveFilePath = [userpath stringByAppendingPathComponent:#"db.sqlite"];
NSFileManager *fileManager = [[NSFileManager alloc] init];
if ([fileManager fileExistsAtPath:userpath] == NO)
[fileManager createDirectoryAtPath:userpath withIntermediateDirectories:YES attributes:nil error:nil];
[fileManager copyItemAtPath:[thisBundle pathForResource:#"db" ofType:#"sqlite"] toPath:saveFilePath error:NULL];
You might want to double-check your file paths:
NSLog(#"src: %#", [thisBundle pathForResource:#"db" ofType:#"sqlite"]);
NSLog(#"dst: %#", saveFilePath);
I'm trying to write Boolean to a plist file. My code is:
NSString *filePath = [self dataFilePath];
if (filePath)
{
if (check)
{
NSLog(#"Clear");
[item setObject:[NSNumber numberWithBool:NO] forKey:#"check"];
[item writeToFile:filePath atomically: YES];
}else{
NSLog(#"Green");
[item setObject:[NSNumber numberWithBool:YES] forKey:#"check"];
[item writeToFile:filePath atomically: YES];
}
NSLog([[NSString alloc] initWithContentsOfFile:filePath]);
}else{
NSLog(#"write file was not found");
}
My filePath is:
- (NSString *)dataFilePath
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
return [documentsDirectory stringByAppendingPathComponent:#"CheckMark.plist"];
}
I load my array with:
- (void)viewDidLoad
{
NSString *filePath = [self dataFilePath];
NSLog(#"%#", filePath);
if (![[NSFileManager defaultManager] fileExistsAtPath:filePath])
{
NSString *myPathInfo = [[NSBundle mainBundle] pathForResource:#"CheckMark" ofType:#"plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager copyItemAtPath:myPathInfo toPath:filePath error:NULL];
}
// load our data from a plist file inside our app bundle
self.dataArray = [NSMutableArray arrayWithContentsOfFile:filePath];
NSLog([[NSString alloc] initWithContentsOfFile:filePath]);
NSLog(#"%#", filePath);
NSLog(#"read dataArray");
Every thing works fine, except when I look at the plist file, nothing changes.
I'm writing the plist file to my Documents directory.
Thanks for any help you can give me.
Remember that you need to be using an NSMutableDictionary to be able to set values.