Problem: Loading data from Plist to array

Evandro · May 2011

Hello Guys!

I trying to load data from a Plist... Into a array. But doesnt work!
When i print the array i receive: Array: (Null)

I looked in several places, but nothing tells me something important about it.

Someone can help me with that? Or tell me a correctly form to manage data info in app?

I'm using the last XCode version.

Controller Function:

- (void)viewDidLoad
{

dataDictItem = [NSDictionary dictionary];

dataPath = [[NSBundle mainBundle] pathForResource:@"Data" ofType:@"plist"];

dataArray = [[NSArray alloc] initWithContentsOfFile:dataPath];

for(dataDictItem in dataArray)
{
NSLog(@"Dictionary Item: %@",dataDictItem);
}

NSLog(@"Array: %@",dataArray);

[dataArray release];

[super viewDidLoad];
}

Plist: Data.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "<a href="http://www.apple.com/DTDs/PropertyList-1.0.dtd" target="_blank" rel="nofollow">http://www.apple.com/DTDs/PropertyList-1.0.dtd">

User - 1

name
Evandro
lasName
Eisinger
imagePath
image.png

User - 2

name
Evandro
lasName
Eisinger
imagePath
image.png

Thanks! I'm waiting for a feedback! :)

iisword · May 2011

just do

[[NSDictionary alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@\"Data\" ofType:@\"plist\"]]

Evandro · May 2011

iisword;334284 said:

just do

[[NSDictionary alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@\"Data\" ofType:@\"plist\"]]

Hello iisword!

Thanks for the answer! You help me a lot!
But i have one more question... How can i store each dictionary value into a array? I tried, but doesnt work...

My improved code, with your tips:


- (void)viewDidLoad
{
 
    dataDictItem = [NSDictionary dictionary];
    
    dataPath = [[NSBundle mainBundle] pathForResource:@\"Data\" ofType:@\"plist\"];
    
    dataDict = [[NSDictionary alloc] initWithContentsOfFile:dataPath];
    
    dataArray = [[NSArray alloc] init];
    
    for(dataDictItem in dataDict)
    {
        
        [dataArray addObject:dataDictItem];
            NSLog(@\"Dictionary Item: %@\",dataDictItem);
    }
    
    [dataArray release];
    
    NSLog(@\"Array: %@\", dataArray);
    
    [super viewDidLoad];
}

iisword · May 2011

I would suggest you read up on Loading… for future advice. Looking at a class' reference will help you save time and energy.

As for the method, I believe [dataDict allValues] is what you want.

Evandro · May 2011

iisword;334341 said:
I would suggest you read up on Loading… for future advice. Looking at a class' reference will help you save time and energy.

As for the method, I believe [dataDict allValues] is what you want.

Hello man!

Thanks again for help me with my problems! But i still have some conflicts...

You told me to use [dataDict allValues], but doesnt work... Always apear this msg: Thread 1: Program received signal: "SIGABRT"

What this mean?

My actual code:

- (void)viewDidLoad
{
 
    dataDictItem = [NSDictionary dictionary];
    
    dataPath = [[NSBundle mainBundle] pathForResource:@\"Data\" ofType:@\"plist\"];
    
    dataDict = [[NSDictionary alloc] initWithContentsOfFile:dataPath];
    
    dataArray = [[NSMutableArray alloc] init];
    
    for(dataDictItem in dataDict)
    {
        
        [dataArray addObject:[dataDictItem allValues]];
        NSLog(@\"Dictionary Item: %@\",dataDictItem);
    }
    
    [dataArray release];
    
    NSLog(@\"Array: %@\", dataArray);
    
    [super viewDidLoad];
}

Can you tell me whats going wrong?

Thx for help! I still trying to resolve the problem...

[]'s

Evandro · May 2011

Hello guys!

I created one data model when i tried to resolve my problem, but i couldnt create my DataModel object and send the value of each dictionary element to him. Apear this msg into this line: Unsed variable 'dataItem'

DataModel *dataItem = [[DataModel alloc] initWithDictionary:dataDictItem];

DataModel.h :


#import <Foundation/Foundation.h>


@interface DataModel : NSObject {

    NSString *name;
    NSString *lastName;
    NSString *imagePath;
    
}

- (id)initWithDictionary:(NSDictionary *)aDictionary;

@property (nonatomic, retain) IBOutlet NSString *name;
@property (nonatomic, retain) IBOutlet NSString *lastName;
@property (nonatomic, retain) IBOutlet NSString *imagePath;

@end

DataModel.m :


#import \"DataModel.h\"


@implementation DataModel

@synthesize name;
@synthesize lastName;
@synthesize imagePath;

- (id)initWithDictionary:(NSDictionary *)aDictionary {
	
		self.name = [aDictionary valueForKey:@\"name\"];
		self.lastName = [aDictionary valueForKey:@\"symbol\"];
		self.imagePath = [aDictionary valueForKey:@\"state\"];
		
    return self;
}

- (void)dealloc {
    [name release];
    [lastName release];
    [imagePath release];
    [super dealloc];
}

@end

Controller:


- (void)viewDidLoad
{
 
    dataDictItem = [NSDictionary dictionary];
    
    dataPath = [[NSBundle mainBundle] pathForResource:@\"Data\" ofType:@\"plist\"];
    
    dataDict = [[NSDictionary alloc] initWithContentsOfFile:dataPath];
    
    dataArray = [[NSMutableArray alloc] init];
    
    for(dataDictItem in dataDict)
    {
    
        DataModel *dataItem = [[DataModel alloc] initWithDictionary:dataDictItem];
        
    }
    
    [dataArray release];
    
    NSLog(@\"Array: %@\", dataArray);
    
    [super viewDidLoad];
}

Thx for help! I still trying to resolve the problem...

[]'s

Evandro · May 2011

Sorry about that, but: Anyone know how to fix this problem?

Thx! []'s

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