I have a list of strings in two arrays truth & dare that are loaded from a plist then randomised and displayed to the user in a label these could be truth or dares. I would like to display a image for both truth and dare when each one is displayed dependant on which array it is loaded from.
As i load the plist file into an array on load im not sure how to go about doing this? Im very new to xcode and am excited at the progress im making so far however.
This is the full code from my .m file
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#synthesize plistArray;
- (void)viewDidAppear:(BOOL)animated {
[self becomeFirstResponder];
NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
NSString *path = [[NSBundle mainBundle] pathForResource:
#"data" ofType:#"plist"];
if ([[defaults objectForKey:#"truthonoff"] isEqualToString:#"YES"] && [[defaults objectForKey:#"dareonoff"] isEqualToString:#"YES"] ) {
self.text.text =#"Are you ready for this?";
NSDictionary *plistDict1 = [[NSDictionary alloc] initWithContentsOfFile:path];
NSArray * plistArray1 = plistDict1[#"truth"];
NSDictionary *plistDict2 = [[NSDictionary alloc] initWithContentsOfFile:path];
NSArray *plistArray2 = plistDict2[#"dare"];
self.plistArray = [[plistArray1 arrayByAddingObjectsFromArray:plistArray2] mutableCopy];
}
else if ([[defaults objectForKey:#"truthonoff"] isEqualToString:#"YES"] ) {
self.text.text =#"I hope you are feeling brave!";
NSDictionary *plistDict3 = [[NSDictionary alloc] initWithContentsOfFile:path];
NSArray *plistArray3 = plistDict3[#"truth"] ;
self.plistArray = [plistArray3 mutableCopy];
NSLog(#"%#", plistArray);
}
else if ([[defaults objectForKey:#"dareonoff"] isEqualToString:#"YES"] ) {
self.text.text =#"This could be interesting!";
NSDictionary *plistDict4 = [[NSDictionary alloc] initWithContentsOfFile:path];
NSMutableArray *plistArray4 = plistDict4[#"dare"];
self.plistArray = [plistArray4 mutableCopy];
NSLog(#"%#", plistArray);
}
else {
self.text.text =#"Please turn on Truth or Dare";
}
}
- (void)viewDidDisappear:(BOOL)animated {
[self becomeFirstResponder];
}
- (BOOL)canBecomeFirstResponder {
return YES;
}
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event {
// Do your thing after shaking device
if ([plistArray count] == 0) {
self.text.text = #"Please Upgrade for more";
}
else {
////display random quote from array
int randV = arc4random() % self.plistArray.count;
self.text.text = self.plistArray[randV];
[self.plistArray removeObjectAtIndex:randV];
}
}
-(IBAction)modal:(id)sender{
}
- (IBAction)container:(id)sender {
}
- (IBAction)shownext:(id)sender {
if ([plistArray count] == 0) {
self.text.text = #"Please Upgrade for more";
}
else {
////display random quote from array
int randV = arc4random() % self.plistArray.count;
self.text.text = self.plistArray[randV];
[self.plistArray removeObjectAtIndex:randV];
}
}
#end
And here is my plist structure there will be alot more data added here when finished tho
It's a little tough to understand the code, so I'll state this in general terms. If you have two arrays of strings (maybe your truth array and dare array), and you have a string that the user selected (this is the part that's unclear in your code -- is it self.text.text?) Let's just call it selectedString, then you can test:
if ([self.truthArray containsObject:selectedString]) {
// selectedString is from the truth array
} else if ([self.dareArray containsObject:selectedString]) {
// selectedString is from the dare array
} else {
// it's in neither array. maybe this is an error
}
Related
Here is my code I have tried
(void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor=[UIColor whiteColor];
NSLog(#"----------------------------%ld",self.studyArray.count);//value is nil
[self createUI];
}
(NSMutableArray *)studyArray{
if (!_studyArray) {
_studyArray = [[NSMutableArray alloc]init];
}
return _studyArray;
}
(void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
[self loadStudyData];
}
(void)loadStudyData{
if ([aa isEqualToString:#"10000"]) {
NSDictionary *info =[responseObj objectForKey:#"info"];
NSLog(#"%#",info);
for (NSDictionary * dict in info) {
StudyModel * studyModel = [StudyModel new];
[studyModel setValuesForKeysWithDictionary:dict];
[self.studyArray addObject:studyModel];
}
NSLog(#"-----------------%ld",self.studyArray.count);// got an value
}
}
This question already has answers here:
NSDictionary with ordered keys
(9 answers)
Closed 6 years ago.
I am passing NSDictionary to my function as a parameter. I want it's key and values to be in order as I inserted.
for eg. expected output is:
mutable dict:{
zKey1 = Value1;
fKey2 = Value2;
aKey3 = Value3;
}
I have tried following ways to create and set value for keys.
NSMutableDictionary *mutableDict = [[NSMutableDictionary alloc]init];
[mutableDict setObject:#"Value1" forKey:#"zKey1"];
[mutableDict setObject:#"Value2" forKey:#"fKey2"];
[mutableDict setObject:#"Value3" forKey:#"aKey3"];
NSMutableDictionary *dic2=[[NSMutableDictionary alloc]initWithObjectsAndKeys:#"1004",#"userId",#"cucumber",#"domain",#"168d5c02f ",#"token",#"1004",#"userId1",#"cucumber",#"domain1",#"168d5c02f ",#"token1", nil];
NSDictionary * dict = [NSDictionary
dictionaryWithObjects:#[#"Ravi",#"33",#"India",#"India"]
forKeys:#[#"name",#"age",#"location",#"country"]];
NSArray *sortedKeys = [[dict allKeys] sortedArrayUsingSelector: #selector(compare:)];
NSMutableArray *sortedValues = [NSMutableArray array];
for (NSString *key in sortedKeys) {
[sortedValues addObject: [dict objectForKey: key]];
}
NSString *obj1=#"1004";
NSString *obj2=#"cucumber";
NSString *obj3=#"168d5c02f";
NSString *key1=#" userId";
NSString *key2=#"domain";
NSString *key3=#"token";
NSLog(#"dict %#",dict);
NSDictionary *dict8 =[NSDictionary
dictionaryWithObjects:#[obj1,obj2,obj3]
forKeys:#[key1,key2,key3]];
But nothing has worked I am always getting output as
mutable dict:{
aKey3 = Value3;
fKey2 = Value2;
zKey1 = Value1;
}
dict8 {
domain = cucumber;
token = 168d5c02f;
userId = 1004;
}
dict {
age = 33;
country = India;
location = India;
name = Ravi;
}
dic= {
domain = cucumber;
domain1 = cucumber;
token = "168d5c02f ";
token1 = "168d5c02f ";
userId = 1004;
userId1 = 1004;
}
It is always sorting values according to alphabetical order of keys. Many people say that NSDictionary is an unsorted container. But it does gets sorted. Need help desperately. Thank you in advance.
NSDictionary is not ordered by default. It will always be without any order. To create an ordered dictionary, you will need to override the existing form of the Data structure. You can read This tutorial to achieve your end.
To summarize the tutorial (Because everyone hates link-only answers and links can die any time):
NSDictionary stores its keys in a hash table, which is unordered by design. Since this lack of order is fundamental to the hash table storeage, you have to perform subclassing of NSMutableDictionary (and hence reimplementation of the storage).
In your .h file
//
// OrderedDictionary.h
// OrderedDictionary
//
// Created by Matt Gallagher on 19/12/08.
// Copyright 2008 Matt Gallagher. All rights reserved.
//
// Permission is given to use this source code file without charge in any
// project, commercial or otherwise, entirely at your risk, with the condition
// that any redistribution (in part or whole) of source code must retain
// this copyright and permission notice. Attribution in compiled projects is
// appreciated but not required.
//
#import <Cocoa/Cocoa.h>
#interface OrderedDictionary : NSMutableDictionary
{
NSMutableDictionary *dictionary;
NSMutableArray *array;
}
- (void)insertObject:(id)anObject forKey:(id)aKey atIndex:(NSUInteger)anIndex;
- (id)keyAtIndex:(NSUInteger)anIndex;
- (NSEnumerator *)reverseKeyEnumerator;
#end
In your .m file:
//
// OrderedDictionary.m
// OrderedDictionary
//
// Created by Matt Gallagher on 19/12/08.
// Copyright 2008 Matt Gallagher. All rights reserved.
//
// Permission is given to use this source code file without charge in any
// project, commercial or otherwise, entirely at your risk, with the condition
// that any redistribution (in part or whole) of source code must retain
// this copyright and permission notice. Attribution in compiled projects is
// appreciated but not required.
//
#import "OrderedDictionary.h"
NSString *DescriptionForObject(NSObject *object, id locale, NSUInteger indent)
{
NSString *objectString;
if ([object isKindOfClass:[NSString class]])
{
objectString = (NSString *)[[object retain] autorelease];
}
else if ([object respondsToSelector:#selector(descriptionWithLocale:indent:)])
{
objectString = [(NSDictionary *)object descriptionWithLocale:locale indent:indent];
}
else if ([object respondsToSelector:#selector(descriptionWithLocale:)])
{
objectString = [(NSSet *)object descriptionWithLocale:locale];
}
else
{
objectString = [object description];
}
return objectString;
}
#implementation OrderedDictionary
- (id)init
{
return [self initWithCapacity:0];
}
- (id)initWithCapacity:(NSUInteger)capacity
{
self = [super init];
if (self != nil)
{
dictionary = [[NSMutableDictionary alloc] initWithCapacity:capacity];
array = [[NSMutableArray alloc] initWithCapacity:capacity];
}
return self;
}
- (void)dealloc
{
//This method is pre-ARC. Manual Release commands don't work now.
//[dictionary release];
//[array release];
//[super dealloc];
}
- (id)copy
{
return [self mutableCopy];
}
- (void)setObject:(id)anObject forKey:(id)aKey
{
if (![dictionary objectForKey:aKey])
{
[array addObject:aKey];
}
[dictionary setObject:anObject forKey:aKey];
}
- (void)removeObjectForKey:(id)aKey
{
[dictionary removeObjectForKey:aKey];
[array removeObject:aKey];
}
- (NSUInteger)count
{
return [dictionary count];
}
- (id)objectForKey:(id)aKey
{
return [dictionary objectForKey:aKey];
}
- (NSEnumerator *)keyEnumerator
{
return [array objectEnumerator];
}
- (NSEnumerator *)reverseKeyEnumerator
{
return [array reverseObjectEnumerator];
}
- (void)insertObject:(id)anObject forKey:(id)aKey atIndex:(NSUInteger)anIndex
{
if (![dictionary objectForKey:aKey])
{
[self removeObjectForKey:aKey];
}
[array insertObject:aKey atIndex:anIndex];
[dictionary setObject:anObject forKey:aKey];
}
- (id)keyAtIndex:(NSUInteger)anIndex
{
return [array objectAtIndex:anIndex];
}
- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level
{
NSMutableString *indentString = [NSMutableString string];
NSUInteger i, count = level;
for (i = 0; i < count; i++)
{
[indentString appendFormat:#" "];
}
NSMutableString *description = [NSMutableString string];
[description appendFormat:#"%#{\n", indentString];
for (NSObject *key in self)
{
[description appendFormat:#"%# %# = %#;\n",
indentString,
DescriptionForObject(key, locale, level),
DescriptionForObject([self objectForKey:key], locale, level)];
}
[description appendFormat:#"%#}\n", indentString];
return description;
}
#end
You can Download Matt Gallagher's orderedDictionary here.
The following code is in my implementation file:
NSMutableArray *courseArray;
- (IBAction)btnClick:(id)sender
{
NSDictionary *courseNames;
if(![_txtBox.text isEqual:#""]) //if not empty
{
courseNames = [self retrieveCourseNamesForSemester:_txtBox.text];
for (NSString *key in courseNames)
{
NSString *val = [NSString stringWithFormat:#"%#-%#",key,[courseNames objectForKey:key]];
_txtView.text = val;
#try
{
[courseArray addObject:val];
}
#catch(NSException *e)
{
NSLog(#"Exception: %# for value = %#", e, val);
}
}
}
[_coursePicker reloadAllComponents];
_coursePicker.hidden=false;
[_txtBox resignFirstResponder];
}
Where you see the call to NSLog(), I get the following error message:
2014-03-29 00:02:25.830 WebServiceTest[44646:60b] Exception: -[__NSArrayI addObject:]: unrecognized selector sent to instance 0x8d82c30 for value = 73-522-Course Name
EDIT: Also, courseArray is populated with sample data in viewDidLoad:
- (void)viewDidLoad
{
[super viewDidLoad];
courseArray = #[#"Australia (AUD)", #"China (CNY)",
#"France (EUR)", #"Great Britain (GBP)", #"Japan (JPY)"];
}
Is there somewhere I should be defining that courseArray will take NSString objects?
The code in viewDidLoad creates an immutable array. You need to make a mutable copy, like this
(void)viewDidLoad
{
[super viewDidLoad];
courseArray = [#[#"(AUD)", #"(CNY)", #"(EUR)"] mutableCopy];
}
Try this code,
for (NSString *key in courseNames)
{
NSString *val = [NSString stringWithFormat:#"%#-%#",key,[courseNames objectForKey:key]];
_txtView.text = val;
if ([CourseArray count]==0)
{
CourseArray= [NSMutableArray arrayWithObject:val];
}
else
{
[CourseArray addObject:val];
}
}
I am trying to load a csv file in core data when the application is ran for the first time. On another post on stackoverflow found here (What is the fastest way to load a large CSV file into core data), I found out how to do that.
I am using the same code form the provided function: populateDB, in my controller and calling the function if the data has never been loaded before (first run). However, xcode is giving me an error:
No visible #interface for ...Controller declares the selector persistentStoreCoordinator.
The function is:
-(void)populateDB{
NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator];
NSManagedObjectContext *context;
if (coordinator != nil) {
context = [[NSManagedObjectContext alloc] init];
[context setPersistentStoreCoordinator:coordinator];
}
NSString *filePath = [[NSBundle mainBundle] pathForResource:#"input" ofType:#"txt"];
if (filePath) {
NSString * myText = [[NSString alloc]
initWithContentsOfFile:filePath
encoding:NSUTF8StringEncoding
error:nil];
if (myText) {
__block int count = 0;
[myText enumerateLinesUsingBlock:^(NSString * line, BOOL * stop) {
line=[line stringByReplacingOccurrencesOfString:#"\t" withString:#" "];
NSArray *lineComponents=[line componentsSeparatedByString:#" "];
if(lineComponents){
if([lineComponents count]==3){
float f=[[lineComponents objectAtIndex:0] floatValue];
NSNumber *number=[NSNumber numberWithFloat:f];
NSString *string1=[lineComponents objectAtIndex:1];
NSString *string2=[lineComponents objectAtIndex:2];
NSManagedObject *object=[NSEntityDescription insertNewObjectForEntityForName:#"Bigram" inManagedObjectContext:context];
[object setValue:number forKey:#"number"];
[object setValue:string1 forKey:#"string1"];
[object setValue:string2 forKey:#"string2"];
NSError *error;
count++;
if(count>=1000){
if (![context save:&error]) {
NSLog(#"Whoops, couldn't save: %#", [error localizedDescription]);
}
count=0;
}
}
}
}];
NSLog(#"done importing");
NSError *error;
if (![context save:&error]) {
NSLog(#"Whoops, couldn't save: %#", [error localizedDescription]);
}
}
}
}
I am picking up iOS again after 3 years of absence and I have never dived into this part of the SDK before. I would greatly appreciate any help with this issue...
The code below shows you an example to load csv file in Core Data using the class CSVParser.hof Matt Gallagher and supposing an entity MyEntity
// CSV File input.csv and not input.txt separate by space #" "
CSVParser *csvParser = [[CSVParser alloc] initWithContentOfFile:[NSBundle mainBundle] pathForResource:#"input" ofType:#"csv" separator:#" "];
// Array with all your data from CSV
NSArray *data = [csvParser parseFile];
// Your entity from Core Data
MyEntity *myEntity = nil;
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
for (NSDictionary *dic in data)
{
fetchRequest.entity = [NSEntityDescription entityForName:#"MyEntity" inManagedObjectContext:context];
if (!entity)
entity = [NSEntityDescription insertNewObjectForEntityForName:#"MyEntity"
inManagedObjectContext:context];
[entity setValue:number forKey:#"number"];
[entity setValue:string1 forKey:#"string1"];
[entity setValue:string2 forKey:#"string2"];
}
// Save the context
[managedObjectContext save:nil];
CVSParser.h using ARC :
//
// CSVParser.h
// CSVImporter
//
// Created by Matt Gallagher on 2009/11/30.
// Copyright 2009 Matt Gallagher. All rights reserved.
//
// Permission is given to use this source code file, free of charge, in any
// project, commercial or otherwise, entirely at your risk, with the condition
// that any redistribution (in part or whole) of source code must retain
// this copyright and permission notice. Attribution in compiled projects is
// appreciated but not required.
//
// Source : http://cocoawithlove.com/2009/11/writing-parser-using-nsscanner-csv.html
#interface CSVParser : NSObject
{
NSString *csvString;
NSString *separator;
NSScanner *scanner;
BOOL hasHeader;
NSMutableArray *fieldNames;
id receiver;
SEL receiverSelector;
NSCharacterSet *endTextCharacterSet;
BOOL separatorIsSingleChar;
}
- (id)initWithString:(NSString *)aCSVString
separator:(NSString *)aSeparatorString;
- (id)initWithContentOfFile:(NSString *)aPath
separator:(NSString *)aSeparatorString;
- (id)initWithString:(NSString *)aCSVString
separator:(NSString *)aSeparatorString
hasHeader:(BOOL)header
fieldNames:(NSArray *)names;
- (id)initWithContentOfFile:(NSString *)aPath
separator:(NSString *)aSeparatorString
hasHeader:(BOOL)header
fieldNames:(NSArray *)names;
- (NSArray *)arrayOfParsedRows;
- (void)parseRowsForReceiver:(id)aReceiver selector:(SEL)aSelector;
- (NSArray *)parseFile;
- (NSMutableArray *)parseHeader;
- (NSDictionary *)parseRecord;
- (NSString *)parseName;
- (NSString *)parseField;
- (NSString *)parseEscaped;
- (NSString *)parseNonEscaped;
- (NSString *)parseDoubleQuote;
- (NSString *)parseSeparator;
- (NSString *)parseLineSeparator;
- (NSString *)parseTwoDoubleQuotes;
- (NSString *)parseTextData;
#end
CVSParser.m using ARC :
//
// CSVParser.m
// CSVImporter
//
// Created by Matt Gallagher on 2009/11/30.
// Copyright 2009 Matt Gallagher. All rights reserved.
//
// Permission is given to use this source code file, free of charge, in any
// project, commercial or otherwise, entirely at your risk, with the condition
// that any redistribution (in part or whole) of source code must retain
// this copyright and permission notice. Attribution in compiled projects is
// appreciated but not required.
//
#import "CSVParser.h"
#implementation CSVParser
//
// initWithString:separator:hasHeader:fieldNames:
//
// Parameters:
// aCSVString - the string that will be parsed
// aSeparatorString - the separator (normally "," or "\t")
// header - if YES, treats the first row as a list of field names
// names - a list of field names (will have no effect if header is YES)
//
// returns the initialized object (nil on failure)
//
- (id)initWithString:(NSString *)aCSVString
separator:(NSString *)aSeparatorString
hasHeader:(BOOL)header
fieldNames:(NSArray *)names
{
self = [super init];
if (self)
{
csvString = [aCSVString retain];
separator = [aSeparatorString retain];
NSAssert([separator length] > 0 &&
[separator rangeOfString:#"\""].location == NSNotFound &&
[separator rangeOfCharacterFromSet:[NSCharacterSet newlineCharacterSet]].location == NSNotFound,
#"CSV separator string must not be empty and must not contain the double quote character or newline characters.");
NSMutableCharacterSet *endTextMutableCharacterSet =
[[NSCharacterSet newlineCharacterSet] mutableCopy];
[endTextMutableCharacterSet addCharactersInString:#"\""];
[endTextMutableCharacterSet addCharactersInString:[separator substringToIndex:1]];
endTextCharacterSet = endTextMutableCharacterSet;
if ([separator length] == 1)
{
separatorIsSingleChar = YES;
}
hasHeader = header;
fieldNames = [names mutableCopy];
}
return self;
}
- (id)initWithString:(NSString *)aCSVString
separator:(NSString *)aSeparatorString
{
return [self initWithString:aCSVString
separator:aSeparatorString
hasHeader:YES
fieldNames:nil];
}
- (id)initWithContentOfFile:(NSString *)aPath
separator:(NSString *)aSeparatorString
{
return [self initWithString:[NSString stringWithContentsOfFile:aPath
encoding:NSUTF8StringEncoding
error:nil]
separator:aSeparatorString];
}
- (id)initWithContentOfFile:(NSString *)aPath
separator:(NSString *)aSeparatorString
hasHeader:(BOOL)header
fieldNames:(NSArray *)names
{
return [self initWithString:[NSString stringWithContentsOfFile:aPath
encoding:NSUTF8StringEncoding
error:nil]
separator:aSeparatorString
hasHeader:header
fieldNames:names];
}
//
// dealloc
//
// Releases instance memory.
//
- (void)dealloc
{
[csvString release];
[separator release];
[fieldNames release];
[endTextCharacterSet release];
[super dealloc];
}
//
// arrayOfParsedRows
//
// Performs a parsing of the csvString, returning the entire result.
//
// returns the array of all parsed row records
//
- (NSArray *)arrayOfParsedRows
{
scanner = [[NSScanner alloc] initWithString:csvString];
[scanner setCharactersToBeSkipped:[[[NSCharacterSet alloc] init] autorelease]];
NSArray *result = [self parseFile];
[scanner release];
scanner = nil;
return result;
}
//
// parseRowsForReceiver:selector:
//
// Performs a parsing of the csvString, sending the entries, 1 row at a time,
// to the receiver.
//
// Parameters:
// aReceiver - the target that will receive each row as it is parsed
// aSelector - the selector that will receive each row as it is parsed
// (should be a method that takes a single NSDictionary argument)
//
- (void)parseRowsForReceiver:(id)aReceiver selector:(SEL)aSelector
{
scanner = [[NSScanner alloc] initWithString:csvString];
[scanner setCharactersToBeSkipped:[[[NSCharacterSet alloc] init] autorelease]];
receiver = [aReceiver retain];
receiverSelector = aSelector;
[self parseFile];
[scanner release];
scanner = nil;
[receiver release];
receiver = nil;
}
//
// parseFile
//
// Attempts to parse a file from the current scan location.
//
// returns the parsed results if successful and receiver is nil, otherwise
// returns nil when done or on failure.
//
- (NSArray *)parseFile
{
scanner = [[NSScanner alloc] initWithString:csvString];
[scanner setCharactersToBeSkipped:[[[NSCharacterSet alloc] init] autorelease]];
if (hasHeader)
{
if (fieldNames)
{
[fieldNames release];
}
fieldNames = [[self parseHeader] retain];
if (!fieldNames || ![self parseLineSeparator])
{
return nil;
}
}
NSMutableArray *records = nil;
if (!receiver)
{
records = [NSMutableArray array];
}
NSDictionary *record = [[self parseRecord] retain];
if (!record)
{
return nil;
}
while (record)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
if (receiver)
{
[receiver performSelector:receiverSelector withObject:record];
}
else
{
[records addObject:record];
}
[record release];
if (![self parseLineSeparator])
{
break;
}
record = [[self parseRecord] retain];
[pool drain];
}
[scanner release];
scanner = nil;
return records;
}
//
// parseHeader
//
// Attempts to parse a header row from the current scan location.
//
// returns the array of parsed field names or nil on parse failure.
//
- (NSMutableArray *)parseHeader
{
NSString *name = [self parseName];
if (!name)
{
return nil;
}
NSMutableArray *names = [NSMutableArray array];
while (name)
{
[names addObject:name];
if (![self parseSeparator])
{
break;
}
name = [self parseName];
}
return names;
}
//
// parseRecord
//
// Attempts to parse a record from the current scan location. The record
// dictionary will use the fieldNames as keys, or FIELD_X for each column
// X-1 if no fieldName exists for a given column.
//
// returns the parsed record as a dictionary, or nil on failure.
//
- (NSDictionary *)parseRecord
{
//
// Special case: return nil if the line is blank. Without this special case,
// it would parse as a single blank field.
//
if ([self parseLineSeparator] || [scanner isAtEnd])
{
return nil;
}
NSString *field = [self parseField];
if (!field)
{
return nil;
}
NSInteger fieldNamesCount = [fieldNames count];
NSInteger fieldCount = 0;
NSMutableDictionary *record =
[NSMutableDictionary dictionaryWithCapacity:[fieldNames count]];
while (field)
{
NSString *fieldName;
if (fieldNamesCount > fieldCount)
{
fieldName = [fieldNames objectAtIndex:fieldCount];
}
else
{
fieldName = [NSString stringWithFormat:#"FIELD_%d", fieldCount + 1];
[fieldNames addObject:fieldName];
fieldNamesCount++;
}
[record setObject:field forKey:fieldName];
fieldCount++;
if (![self parseSeparator])
{
break;
}
field = [self parseField];
}
return record;
}
//
// parseName
//
// Attempts to parse a name from the current scan location.
//
// returns the name or nil.
//
- (NSString *)parseName
{
return [self parseField];
}
//
// parseField
//
// Attempts to parse a field from the current scan location.
//
// returns the field or nil
//
- (NSString *)parseField
{
NSString *escapedString = [self parseEscaped];
if (escapedString)
{
return escapedString;
}
NSString *nonEscapedString = [self parseNonEscaped];
if (nonEscapedString)
{
return nonEscapedString;
}
//
// Special case: if the current location is immediately
// followed by a separator, then the field is a valid, empty string.
//
NSInteger currentLocation = [scanner scanLocation];
if ([self parseSeparator] || [self parseLineSeparator] || [scanner isAtEnd])
{
[scanner setScanLocation:currentLocation];
return #"";
}
return nil;
}
//
// parseEscaped
//
// Attempts to parse an escaped field value from the current scan location.
//
// returns the field value or nil.
//
- (NSString *)parseEscaped
{
if (![self parseDoubleQuote])
{
return nil;
}
NSString *accumulatedData = [NSString string];
while (YES)
{
NSString *fragment = [self parseTextData];
if (!fragment)
{
fragment = [self parseSeparator];
if (!fragment)
{
fragment = [self parseLineSeparator];
if (!fragment)
{
if ([self parseTwoDoubleQuotes])
{
fragment = #"\"";
}
else
{
break;
}
}
}
}
accumulatedData = [accumulatedData stringByAppendingString:fragment];
}
if (![self parseDoubleQuote])
{
return nil;
}
return accumulatedData;
}
//
// parseNonEscaped
//
// Attempts to parse a non-escaped field value from the current scan location.
//
// returns the field value or nil.
//
- (NSString *)parseNonEscaped
{
return [self parseTextData];
}
//
// parseTwoDoubleQuotes
//
// Attempts to parse two double quotes from the current scan location.
//
// returns a string containing two double quotes or nil.
//
- (NSString *)parseTwoDoubleQuotes
{
if ([scanner scanString:#"\"\"" intoString:NULL])
{
return #"\"\"";
}
return nil;
}
//
// parseDoubleQuote
//
// Attempts to parse a double quote from the current scan location.
//
// returns #"\"" or nil.
//
- (NSString *)parseDoubleQuote
{
if ([scanner scanString:#"\"" intoString:NULL])
{
return #"\"";
}
return nil;
}
//
// parseSeparator
//
// Attempts to parse the separator string from the current scan location.
//
// returns the separator string or nil.
//
- (NSString *)parseSeparator
{
if ([scanner scanString:separator intoString:NULL])
{
return separator;
}
return nil;
}
//
// parseLineSeparator
//
// Attempts to parse newline characters from the current scan location.
//
// returns a string containing one or more newline characters or nil.
//
- (NSString *)parseLineSeparator
{
NSString *matchedNewlines = nil;
[scanner
scanCharactersFromSet:[NSCharacterSet newlineCharacterSet]
intoString:&matchedNewlines];
return matchedNewlines;
}
//
// parseTextData
//
// Attempts to parse text data from the current scan location.
//
// returns a non-zero length string or nil.
//
- (NSString *)parseTextData
{
NSString *accumulatedData = [NSString string];
while (YES)
{
NSString *fragment;
if ([scanner scanUpToCharactersFromSet:endTextCharacterSet intoString:&fragment])
{
accumulatedData = [accumulatedData stringByAppendingString:fragment];
}
//
// If the separator is just a single character (common case) then
// we know we've reached the end of parseable text
//
if (separatorIsSingleChar)
{
break;
}
//
// Otherwise, we need to consider the case where the first character
// of the separator is matched but we don't have the full separator.
//
NSUInteger location = [scanner scanLocation];
NSString *firstCharOfSeparator;
if ([scanner scanString:[separator substringToIndex:1] intoString:&firstCharOfSeparator])
{
if ([scanner scanString:[separator substringFromIndex:1] intoString:NULL])
{
[scanner setScanLocation:location];
break;
}
//
// We have the first char of the separator but not the whole
// separator, so just append the char and continue
//
accumulatedData = [accumulatedData stringByAppendingString:firstCharOfSeparator];
continue;
}
else
{
break;
}
}
if ([accumulatedData length] > 0)
{
return accumulatedData;
}
return nil;
}
#end
Thanks for everyone's assistance. I found the answer on stackoverflow, a 2-3 years old forum (Adding Core Data to existing iPhone project)...
So the issue it seems is that when I first created the project I didn't request using core data and only did that later on. Following the post I posted above:
Add the following to supporting files/projectName-Prefix.pch
#import <CoreData/CoreData.h>
Once I did, the persistenceCoordinator error disappeared...
WOW, big lesson learned there...
-(void)populateDB {
NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator];
NSManagedObjectContext *context;
[....]
}
The Problem might be [self persistentStoreCoordinator]... Do you have a function called "persistentStoreCoordinator" ? If not, you have to write the function.
[EDIT]
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator
{
#synchronized (self)
{
if (__persistentStoreCoordinator != nil)
return __persistentStoreCoordinator;
NSString *defaultStorePath = [[NSBundle mainBundle] pathForResource:#"myProject" ofType:#"sqlite"];
NSString *storePath = [[[self applicationDocumentsDirectory] path] stringByAppendingPathComponent: #"myProject.sqlite"];
NSError *error;
if (![[NSFileManager defaultManager] fileExistsAtPath:storePath])
{
if ([[NSFileManager defaultManager] copyItemAtPath:defaultStorePath toPath:storePath error:&error])
NSLog(#"Copied starting data to %#", storePath);
else
NSLog(#"Error copying default DB to %# (%#)", storePath, error);
}
NSURL *storeURL = [NSURL fileURLWithPath:storePath];
__persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption,
[NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil];
if (![__persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:options error:&error])
{
NSLog(#"Unresolved error %#, %#", error, [error userInfo]);
abort();
}
return __persistentStoreCoordinator;
}
}
Is this Code in another File ? Maybe you forgot to import the .h-file, where persistentStoreCoordinator is declared in.
I am using SudzC to get webservices, that webservice give me data, I tried to save the data in a property, but when I use to fill a tableview the property don't have any data. I use the debugger to view the property.
This es my handler
- (void) ConsultarUnidadesOrganizacionalesPorEmpresaHandler: (id) value {
// Handle errors
if([value isKindOfClass:[NSError class]]) {
NSLog(#"%#", value);
return;
}
// Handle faults
if([value isKindOfClass:[SoapFault class]]) {
NSLog(#"%#", value);
return;
}
// Do something with the NSMutableArray* result
NSMutableArray *result = (NSMutableArray*)value;
NSMutableArray *unidadOrganizacional = [[NSMutableArray alloc] init];
self.myData = [NSMutableArray array];
for (int i = 0; i < [result count]; i++)
{
EWSUnidadNegocio *empresa = [[EWSUnidadNegocio alloc] init];
empresa = [result objectAtIndex:i];
[unidadOrganizacional addObject:[empresa Descripcion]];
}
self.myData = unidadOrganizacional;
}
And this is the part where I use the web service
- (void)viewDidLoad
{
// Do any additional setup after loading the view from its nib.
EWSEmpresaWebServiceSvc *service = [[EWSEmpresaWebServiceSvc alloc]init];
[service ConsultarUnidadesOrganizacionalesPorEmpresa:self action:#selector(ConsultarUnidadesOrganizacionalesPorEmpresaHandler:) EmpresaId:self.empresaID];
[super viewDidLoad];
}
And the tableview is empty. Why does this happen? How can I use the data and fill my tableview?
Try to change your code this way :
self.myData = [[NSMutableArray alloc] init]autorelease];
// your loop
[sel setMyData:unidadOrganizacional];
try loading it in a dictionary:
dict = [resp objectForKey:#"YourKey"];
if( ( dict == nil ) || ![dict isKindOfClass:[NSDictionary class]] ) {
NSLog( #"WARNING: %#", [dict description]);
return;
}
empID = [[dict objectForKey:#"empresaID"]copy];
NSLog(#"Your Value: %#", empID);
I found the answer, I just have to put
[_myTableView reloadData]
at the end of the method.