Here is my code:
-(IBAction)btnSaveInfo:(UIButton *)sender {
NSMutableArray *data = [[NSMutableArray alloc] init];
NSDictionary *appInfo = [NSDictionary dictionaryWithObjectsAndKeys: fieldAPI.text, #"App API", fieldID.text, #"App ID", fieldName.text, #"App Name", nil];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *newPath = [documentsDirectory stringByAppendingPathComponent:#"AppData.plist"];
NSMutableArray *appdata = [NSMutableArray arrayWithContentsOfFile:newPath];
[appdata addObject:appInfo];
NSLog(#"%#",appdata);
[appdata writeToFile:newPath atomically:YES];
if ([data writeToFile:newPath atomically:YES]) {
NSLog(#"Success!");
NSMutableArray *finalData = [NSMutableArray arrayWithContentsOfFile:newPath];
NSLog(#"Final array:\n\n%#",finalData);
[self.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}
else {
NSLog(#"Error...");
}
[data release];
}
My NSLogs return
2012-12-23 01:20:37.628 Parse Push[38052:c07] (
{
"App API" = asdf;
"App ID" = adsf;
"App Name" = asdf;
}
)
2012-12-23 01:20:37.932 Parse Push[38052:c07] Success!
2012-12-23 01:20:37.933 Parse Push[38052:c07] Final array:
(
)
Is there an error with my code, or something that I'm missing? I am new to interacting with .plists, so I would appreciate any help, thanks!
The problem is here
if ([data writeToFile:newPath atomically:YES]) {
You are writing again an empty array here
Use this
[appdata addObject:appInfo];
NSLog(#"%#",appdata);
if ([appdata writeToFile:newPath atomically:YES]){
Related
I am trying to save multiple games and whenever I want to save one the first method is called. However, no matter what I do, [NSFileManager defaultManager] keeps telling me that there is no file at [SaveGameManager filePath] and [SaveGameManager savedGames] keeps giving me nil objects. Any advice/help?
#implementation SaveGameManager
+(void)saveGameWithDate:(NSDate*)date type:(NSInteger)type allMoves:(NSArray*)allMoves players:(NSArray*)players playerTimes:(NSArray*)playerTimes delayTime:(double)delayTime useTimer:(BOOL)useTimer delayOption:(NSInteger)delayOption drawOfferState:(NSInteger)drawOfferState resignationState:(NSInteger)resignationState current:(BOOL)current {
NSLog(#"saving game");
NSMutableArray* savedGames = [SaveGameManager savedGames];
if (!savedGames) {
savedGames = [NSMutableArray array];
}
NSMutableDictionary* dict = [#{#"date" : date, #"boardType" : #(type), #"allMoves" : allMoves, #"players" : players, #"delayTime" : #(delayTime), #"useTimer" : #(useTimer), #"delayOption" : #(delayOption), #"drawOfferState" : #(drawOfferState), #"resignationState" : #(resignationState), #"current" : #(current)} mutableCopy];
if (playerTimes) {
dict[#"playerTimes"] = playerTimes;
}
[savedGames addObject:dict];
[savedGames writeToFile:[SaveGameManager filePath] atomically:YES];
}
+(NSString*)filePath {
static NSString* path;
if (!path) {
path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0] stringByAppendingPathComponent:#"SavedGames.plist"];
}
return path;
}
+(NSMutableArray*)savedGames {
return [NSMutableArray arrayWithContentsOfFile:[SaveGameManager filePath]];
}
#end
Use this code to save a NSDictionary in Plist format in Application document.
+ (void)saveSessionToDisk:(NSDictionary *)session {
NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] initWithDictionary:session];
NSError *error;
NSData *archiveData = [NSKeyedArchiver archivedDataWithRootObject:dictionary];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *fullPath = [documentsDir stringByAppendingPathComponent:#"SavedSession.plist"];
[archiveData writeToFile:fullPath options:NSDataWritingAtomic error:&error];
}
Use this code to Load NSDictionary from Plist that you saved earlier.
+ (NSDictionary *)loadSessionFromDisk
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *fullPath = [documentsDir stringByAppendingPathComponent:#"SavedSession.plist"];
DLog(#"%#",fullPath);
NSFileManager *fileManager =[NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:fullPath]) {
NSMutableDictionary *dict = nil;
#try {
NSData *archiveData = [NSData dataWithContentsOfFile:fullPath];
dict = (NSMutableDictionary*)[NSKeyedUnarchiver unarchiveObjectWithData:archiveData];
if ([dict count] > 0) {
return dict;
} else {
return nil;
}
} #catch (NSException *e) {
}
} else {
return nil;
}
}
Always use this condition before you try to load NSDictionary :
if ([[UtilityFunctions loadSessionFromDisk] isKindOfClass:[NSDictionary class]]) {
NSDictionary *myDictionary = [UtilityFunctions loadSessionFromDisk];
}
I have created a simple plist file with some user preferences for a card game I'm writing.
I have also created a controller that reads and writes to this plist file which is a singelton.
everything works fine, but then after a couple of tries it stops working.
Logging the values to the console it shows the list returning a value of 0 which causes my app to crash
I have deleted the plist and created a new one and then the same story, works fine for 2 or three time and then boom zero.
here is a copy of the controller singelton code:
#implementation userOptionsController
static userOptionsController* _sharedOptionsController = nil;
#synthesize backgroundSound=_backgroundSound;
#synthesize soundEffects = _soundEffects;
#synthesize coach = _coach;
#synthesize numberOfDecks = _numberOfDecks ;
+(userOptionsController*)sharedOptionsController{
#synchronized([userOptionsController class])
{
if(!_sharedOptionsController)
[[self alloc]init];
return _sharedOptionsController;
}
return nil;
}
+(id)alloc
{
#synchronized ([userOptionsController class])
{
NSAssert(_sharedOptionsController == nil, #"Attempted to allocate a second instance of userOptionsController singleton");
_sharedOptionsController = [super alloc];
return _sharedOptionsController;
}
return nil;
}
- (id) init {
self = [super init];
if (self) {
}
return self;
}
-(void)readPlistFile
{
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"playerPrefOptions.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path])
{
NSString *bundle = [[NSBundle mainBundle] pathForResource:#"playerPrefOptions" ofType:#"plist"];
[fileManager copyItemAtPath:bundle toPath: path error:&error];
}
NSMutableDictionary *temp = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
self.backgroundSound = [[temp objectForKey:#"backgroundSounds"]boolValue];
self.soundEffects = [[temp objectForKey:#"soundEffects"]boolValue];
self.coach =[[temp objectForKey:#"coach"]boolValue];
self.numberOfDecks = [[temp objectForKey:#"numberOfDecks"]intValue];
}
-(void)writeOptionsToFile
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"playerPrefOptions.plist"];
NSMutableDictionary *infoDict = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
NSNumber *moshe = [NSNumber numberWithInt:self.numberOfDecks];
[infoDict setObject: moshe forKey:#"numberOfDecks"];
[infoDict setObject:[NSNumber numberWithBool:self.coach] forKey:#"coach"];
[infoDict setObject:[NSNumber numberWithBool:self.backgroundSound] forKey:#"backgroundSounds"];
[infoDict setObject:[NSNumber numberWithBool:self.soundEffects] forKey:#"soundEffects"];
[infoDict writeToFile:path atomically:YES];
}
#end
so the property :
int numberOfDecks =[userOptionsController sharedOptionsController].numberOfDecks;
will return zero.
any ideas?
thanks.
Rather than use a plist for this content, it looks like NSUserDefaults is a more appropriate location.
Instead of shipping the app with a default plist file, instead just registerDefaults: with NSUserDefaults (often done in your app delegate application:didFinishLaunchingWithOptions:).
Then, whenever any changes are made just update NSUserDefaults and call synchronize to save the changes.
Try this and see what it does (what logs are output):
#implementation userOptionsController
+ (userOptionsController*)sharedOptionsController
{
static dispatch_once_t pred = 0;
__strong static id _sharedObject = nil;
dispatch_once(&pred, ^{
_sharedObject = [[self alloc] init];
});
return _sharedObject;
}
- (id) init {
self = [super init];
if (self) {
}
return self;
}
-(void)readPlistFile
{
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"playerPrefOptions.plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path])
{
NSString *bundle = [[NSBundle mainBundle] pathForResource:#"playerPrefOptions" ofType:#"plist"];
if (![fileManager copyItemAtPath:bundle toPath: path error:&error]) {
NSLog(#"ERROR - file couldn't be copied: %#", error);
}
}
NSMutableDictionary *temp = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
if (temp == nil) {
NSLog(#"ERROR - file couldn't be read");
}
self.backgroundSound = [[temp objectForKey:#"backgroundSounds"]boolValue];
self.soundEffects = [[temp objectForKey:#"soundEffects"]boolValue];
self.coach =[[temp objectForKey:#"coach"]boolValue];
self.numberOfDecks = [[temp objectForKey:#"numberOfDecks"]intValue];
}
-(void)writeOptionsToFile
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"playerPrefOptions.plist"];
NSMutableDictionary *infoDict = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
NSNumber *moshe = [NSNumber numberWithInt:self.numberOfDecks];
[infoDict setObject: moshe forKey:#"numberOfDecks"];
[infoDict setObject:[NSNumber numberWithBool:self.coach] forKey:#"coach"];
[infoDict setObject:[NSNumber numberWithBool:self.backgroundSound] forKey:#"backgroundSounds"];
[infoDict setObject:[NSNumber numberWithBool:self.soundEffects] forKey:#"soundEffects"];
if (![infoDict writeToFile:path atomically:YES]) {
NSLog(#"ERROR - failed to write the new file (%#)", path);
} else {
NSLog(#"Completed write of:\n%#", infoDict);
}
}
#end
Plist is copyed to documents directory if it doesn't exist.
If it already exists, I want to use the "Name" key from NSDictionary in bundleArray to find the matching NSDictionary in documentsArray.
When the match is found, I want to check for changes in the strings and replace them if there is a change.
If a match is not found it means this dictionary must be added to documents plist.
This is my code:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[self managePlist];
return YES;
}
- (void)managePlist {
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"Objects.plist"];
NSString *bundle = [[NSBundle mainBundle] pathForResource:#"Objects" ofType:#"plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath: path]) {
[fileManager copyItemAtPath:bundle toPath:path error:&error];
} else {
NSArray *bundleArray = [[NSArray alloc] initWithContentsOfFile:bundle];
NSMutableArray *documentArray = [[NSMutableArray alloc] initWithContentsOfFile:path];
BOOL updateDictionary = NO;
for(int i=0;i<bundleArray.count;i++) {
NSDictionary *bundleDict=[bundleArray objectAtIndex:i];
BOOL matchInDocuments = NO;
for(int ii=0;ii<documentArray.count;ii++)
{
NSMutableDictionary *documentDict = [documentArray objectAtIndex:ii];
NSString *bundleObjectName = [bundleDict valueForKey:#"Name"];
NSString *documentsObjectName = [documentDict valueForKey:#"Name"];
NSRange range = [documentsObjectName rangeOfString:bundleObjectName options:NSCaseInsensitiveSearch];
if (range.location != NSNotFound) {
matchInDocuments = YES;
}
if (matchInDocuments) {
if ([bundleDict objectForKey:#"District"] != [documentDict objectForKey:#"District"]) {
[documentDict setObject:[bundleDict objectForKey:#"District"] forKey:#"District"];
updateDictionary=YES;
}
}
else {
[documentArray addObject:bundleDict];
updateDictionary=YES;
}
}
}
if(updateDictionary){
[documentArray writeToFile:path atomically:YES];
}
}
}
If I run my app now I get this message: '-[__NSCFDictionary setObject:forKey:]: mutating method sent to immutable object'
How can I fix this?
When this is fixed, do you think my code will work?
If not, I would be happy for some suggestions on how to do this. I have struggled for a while and really need to publish the update with the corrections! Thanks a lot for your help.
Presumably the documentDict is actually immutable. Even though you assign it to an NSMutableDictionary, this doesn't accurately describe the underlying data.
NSMutableDictionary *documentDict = [documentArray objectAtIndex:ii];
should be:
NSMutableDictionary *documentDict = [NSMutableDictionary dictionaryWithDictionary:[documentArray objectAtIndex:ii]];
and wherever you edit the documentDict, add:
[documentArray replaceObjectAtIndex:ii withObject:documentDict];
When you read a plist from file, an immutable dictionary/array with immutable children is created, so your
NSMutableDictionary *documentDict = [documentArray objectAtIndex:ii];
line is erfectively a lie - you don't have a mutable dictionary. To create a mutable object from a plist, have a look at CFPropertyListCreateWithData and specify kCFPropertyListMutableContainersAndLeaves as the mutability option.
This is my final and working code using the answer from James Webster. Thanks to H2CO3 as well for contribution.
- (void)managePlist {
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:#"Object.plist"];
NSString *bundle = [[NSBundle mainBundle] pathForResource:#"Object" ofType:#"plist"];
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath:path]) {
[fileManager copyItemAtPath:bundle toPath:path error:&error];
}
else
{
NSArray *bundleArray = [[NSArray alloc] initWithContentsOfFile:bundle];
NSMutableArray *documentArray = [[NSMutableArray alloc] initWithContentsOfFile:path];
BOOL updateDictionary = NO;
for(int i=0;i<bundleArray.count;i++) {
NSDictionary *bundleDict=[bundleArray objectAtIndex:i];
for(int ii=0;ii<documentArray.count;ii++)
{
NSMutableDictionary *documentDict = [NSMutableDictionary dictionaryWithDictionary:[documentArray objectAtIndex:ii]];
NSString *bundleObjectName = [bundleDict valueForKey:#"Name"];
NSString *documentsObjectName = [documentDict valueForKey:#"Name"];
NSRange range = [documentsObjectName rangeOfString:bundleObjectName options:NSCaseInsensitiveSearch];
if (range.location != NSNotFound) {
NSString *districtString = [bundleDict objectForKey:#"District"];
if ([documentDict objectForKey:#"District"] != districtString) {
[documentDict setObject:districtString forKey:#"District"];
[documentArray replaceObjectAtIndex:ii withObject:documentDict];
updateDictionary=YES;
}
}
}
}
if(updateDictionary){
[documentArray writeToFile:path atomically:YES];
}
}
}
I have a UITableView populated by a feed from searchtwitter.com. I also have a details table with an image and UILabel. I have all this working, but I want to add a UIButton on the detail page that will save the UIImage and the label into a property list. I'm very new to this; here is what I have so far (not working).
- (IBAction)SaveFriend:(id)sender
{
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentDirectory = [path objectAtIndex:0];
NSString *plistPath = [documentDirectory stringByAppendingPathComponent:#"TwitterFriends.plist"];
NSDictionary * tweet = [[NSDictionary alloc]init];
NSString *text = [tweet objectForKey:#"from_user"];
NSString *user = [tweet objectForKey:#"from_user_name"];
personName.text = text;
personInfo.text = user;
// create dictionary with values in UITextFields
NSDictionary *plistDict = [NSDictionary dictionaryWithObjects: [NSArray arrayWithObjects: personName, personInfo, nil] forKeys:[NSArray arrayWithObjects: #"Name", #"info", nil]];
NSString *error = nil;
// create NSData from dictionary
NSData *plistData = [NSPropertyListSerialization dataFromPropertyList:plistDict format:NSPropertyListXMLFormat_v1_0 errorDescription:&error];
// check is plistData exists
if(plistData)
{
// write plistData to our Data.plist file
[tweet writeToFile:plistPath atomically:YES];
}
else
{
NSLog(#"Error in saveData: %#", error);
[error release];
}
}
Instead of using a .plist, try using an NSArray or NSMutableArray and then the writeToFile method. For example:
NSMutableArray *temp = [NSMutableArray new];
[temp addObject:image];
[temp addObject:label];
[temp writeToFile:[self saveFilePath:#"filename"] atomically:YES];
//Returns the saved information path
- (NSString*) saveFilePath: (NSString *) add
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *path = [paths objectAtIndex:0];
NSString *filename = [path stringByAppendingPathComponent:add];
return filename;
}
I have this code:
-(IBAction)action2:(id)sender{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Confirm" message:#"If you press of a new group with the name you have set will be created" delegate:self cancelButtonTitle:#"Cancel" otherButtonTitles: #"Ok", nil];
[alert show];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSString *title = [alertView buttonTitleAtIndex:buttonIndex];
if([title isEqualToString:#"Ok"])
{
NSString *destDir = [NSString stringWithFormat:#"/sandbox/%#/", namegroup.text];
NSString *filename5 = namegroup.text;
NSString *filename6 = #"group";
NSString *filename7 = #"groupdata";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *getImagePath5 = [documentsDirectory stringByAppendingPathComponent: [NSString stringWithFormat:#"%#", filename7]];
NSMutableArray *titles = [NSMutableArray array];
[titles addObject:filename5];
NSMutableArray *keys = [NSMutableArray array];
[keys addObject:filename6];
NSDictionary *dict = [NSDictionary dictionaryWithObjects:titles forKeys:keys];
NSString *jsonString = [dict JSONRepresentation];
NSData *jsonData = [jsonString dataUsingEncoding: NSUTF8StringEncoding];
[jsonData writeToFile: getImagePath5 atomically: YES];
[[self restClient] uploadFile:filename7 toPath:destDir
withParentRev:nil fromPath:getImagePath5];
}
}
If I press Ok button, the code is repeated over and over. how can I repeat it only 1 time??
I found out that there was another alert with the same cancel title, and when this was pressed it re-launched the same code. Thanks however for the help.