I have an iPhone app where I have to modify the plist at runtime. I am successfully able to do it on simulator but when I run it on device it retrieves the data from the old plist and modification is not done. This is the code I am using for getting the path of the plist -
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"Customer.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path])
{
path = [[NSBundle mainBundle] pathForResource:#"Customer" ofType:#"plist"];
}
NSMutableDictionary *mainDictionary;
mainDictionary = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
To write a dictionary on plist file this line may work
[dicionaryToWrite writeToFile:path atomically: TRUE];
Related
How can I store an image and any string value in plist as dictionary.I
have created a plist file in the project,and
also how can i append the file with same dictionary of different image and name?
Use the following code to write image & title to-gather in plist-
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"PlistName.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path])
{
path = [documentsDirectory stringByAppendingPathComponent: [NSString stringWithFormat: #"PlistName.plist"] ];
}
fileManager = [NSFileManager defaultManager];
NSMutableDictionary *dataDictionary=[NSMutableDictionary alloc] init];
[dataDictionary setObject:ImageData forKey:image];
[dataDictionary setObject:ImageTitle forKey:title];
[dataDictionary writeToFile: path atomically:YES];
And read your image & title dictionary from plist like this-
- (NSDictionary * )readDataFromPlist()
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"PlistName.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSMutableDictionary *dataDictionary;
if ([fileManager fileExistsAtPath: path])
{
dataDictionary = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
return dataDictionary;
}else
return nil;
}
You can follow this link. It provides detail how to store image to plist
Storing image in plist
And for title to store you can add new key like below.
// Get a full path to a plist within the Documents folder for the app
NSString *titleStr = #"Title Of Image";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask,
YES);
NSString *path = [NSString stringWithFormat:#"%#/YOURPLIST.plist",
[paths objectAtIndex:0]];
// Place an image in a dictionary that will be stored as a plist
[dictionary setObject:image forKey:#"image"];
[dictionary setObject:titleStr forKey:#"title"];
// Write the dictionary to the filesystem as a plist
[NSKeyedArchiver archiveRootObject:dictionary toFile:path];
I am trying to save data in a NSMutableDictionary to a plist. Plist is already in the Resources folder. When I am trying to save the data to the plist using following code it returns YES which means data was successfully saved. But when I check the file data is not saved to it.
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); //1
NSString *documentsDirectory = [paths objectAtIndex:0]; //2
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"userInfo.plist"]; //3
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path]){ //4 {
NSString *bundle = [[NSBundle mainBundle] pathForResource:#"userInfo" ofType:#"plist"]; //5
[fileManager copyItemAtPath:bundle toPath: path error:&error]; //6
}
BOOL b = [self.userInfoArray writeToFile:path atomically: YES];
NSLog(#"status %i ", b);
Anyone have solution of this ?
I think I was looking at the wrong file. Plist file in the Xcode does not change after saving the data. Instead, plist in the simulator is changing.
In my app, I load data from a CSV file stored in the bundle resources. However, I'd like to be able to update this file programmatically when the user taps the Update button. Is there a way to change a resource in the app bundle programatically? Here is the code I use to access the file:
NSString *path = [[NSBundle mainBundle] pathForResource:#"query_result" ofType:#"csv"];
NSArray *rows = [NSArray arrayWithContentsOfCSVFile:path];
First of all load file from bundle and after that just store in Document directory then you can make change on this file again save on document directory to access changed file.
Use this code copy from mainbundle to Document.
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSString *dataPath = [[self applicationDocumentsDirectory] stringByAppendingPathComponent:#"tessdata"];
NSLog(#"Datapath is %#", dataPath);
// If the expected store doesn't exist, copy the default store.
if ([fileManager fileExistsAtPath:dataPath] == NO)
{
NSString *tessdataPath = [[NSBundle mainBundle] pathForResource:#"eng" ofType:#"traineddata"];
[fileManager copyItemAtPath:tessdataPath toPath:dataPath error:&error];
}
-(NSString*) applicationDocumentsDirectory{
// Get the documents directory
NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsDir = [dirPaths objectAtIndex:0];
return docsDir;
}
And then get the Saved file to change...
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask,
YES);
NSString *fullPath = [[paths lastObject] stringByAppendingPathComponent:#"recentDownload.txt"];
I am implementing setting bundle first time and I have done it by creating Root.plist and Child.plist in Settings.bundle and have some fields in these plist.
I need to update the fields (add or remove) of Child.plist according to web services and I have written code for that in appdelegate. Its working fine in simulator (all fields are updated accordingly) but its not working in device.
Can any one suggest me what could be the reason of it.
code to copy plist to document directory and update that (as per the asnwer)
NSString *bundle = [[NSBundle mainBundle]pathForResource:#"Settings" ofType:#"bundle"];
NSString *path = [bundle stringByAppendingPathComponent:#"Category.plist"];
NSMutableDictionary *dictOfPlist = [NSDictionary dictionaryWithContentsOfFile:path];
NSMutableArray *dictArray = [dictOfPlist valueForKey:#"PreferenceSpecifiers"];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path1 = [documentsDirectory stringByAppendingPathComponent:#"Child.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path1])
{
[fileManager copyItemAtPath:path toPath: path1 error:&error];
}
for (some condition)
{
// creating dictionary
// add dictionary to array dictArray
}
[dictOfPlist setObject:dictArray forKey:#"PreferenceSpecifiers"];
[dictOfPlist writeToFile:path1 atomically:YES];
I think you have a problem to write your PLIST. You need to copy your PLIST from your resources bundle into the documents directory and modify the PLIST inside this folder.
For that you can use this piece of code :
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"data.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path])
{
NSString *bundle = [[NSBundle mainBundle] pathForResource:#”data” ofType:#”plist”];
[fileManager copyItemAtPath:bundle toPath: path error:&error];
}
Have a look here.
I m able to save the plist file in Simulator but I m not able to save the Plist file in the device. Any suggestion.
I m using
NSString* dictPath = [[NSBundle mainBundle] pathForResource:#"Dictionary" ofType:#"plist"];
NSDictionary * dict = [[NSDictionary alloc] initWithContentsOfFile:dictPath];
to read the files
and
[dict writeToFile:dictPath atomically: YES];
to write to file.
You can not write in to main bundle. You only can read from main bundle. If you want to write an file you need to place it in to the documents directory of your app.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.plist",plistName]];
If you need the plist from the main bundle you can copy it first in to the documents directory then modify it. It is advised to have a check to ensure it is copied only once.
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.plist",plistName]];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path]){
NSLog(#"File don't exists at path %#", path);
NSString *plistPathBundle = [[NSBundle mainBundle] pathForResource:plistName ofType:#"plist"];
[fileManager copyItemAtPath:plistPathBundle toPath: path error:&error];
}else{
NSLog(#"File exists at path:%#", path);
}
Generally you would store these in ~/Documents or in ~/Library depending on the file. The question What is the documents directory (NSDocumentDirectory)? includes the documentation links and sample code you need to understand this.
You need to save the plist in Documents directory
to write
NSString *mainBundlePath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *dictPath = [mainBundlePath stringByAppendingPathComponent:#"Dictionary"];
NSDictionary * dict = ...; //Construct your dictionary
[dict writeToFile:dictPath atomically: YES];
to read
NSDictionary * dict = [[NSDictionary alloc] initWithContentsOfFile:dictPath];