passing data from a TableView to a DetailView doesn´t work

OldHank · 03-20-2011, 07:21 AM

Hey Guys,
i have a problem. i have a tableview which can be filled from a plist.

Code:

<dict>
	<key>besch</key>
	<string>level 1</string>
	<key>ItemChild</key>
	<array>
		<dict>
			<key>besch</key>
			<string>level 2</string>
			<key>ItemChild</key>
			<array>
				<dict>
					<key>besch</key>
					<string>level 3</string>
					<key>bildklein</key>
					<string>blume5_klein.jpg</string>
					<key>name</key>
					<string>Inside Inside Level 1</string>
				</dict>
			</array>
			<key>name</key>
			<string>INnside Level 1</string>
		</dict>
	</array>
	<key>name</key>
	<string>Level 1</string>
</dict>
</plist>

The data is loaded into an MutableArray.

Code:

interface View2Controller : UITableViewController {
	NSMutableArray* dataList1;   	
}

In die View2Controller in the cellForRowAtIndexPath i can use the data without a problem. Everything is going fine. The stings from the plist is shown where it should.

Code:

// Set up the cell...
	cell.textLabel.text = [[self.dataList1 objectAtIndex:indexPath.row] objectForKey: @"name"]; 	
    
    cell.detailTextLabel.text = [[self.dataList1 objectAtIndex:indexPath.row] 
                                 objectForKey:@"besch"];

now i have a detailview and want to fill some objects with the the same stuff and nothing happens...

i tried it like this:

Code:

_besch1Field.text = [dataList1 valueForKey:@"besch"];

_imageView.image = [UIImage imageNamed:[dataList1 valueForKey:@"bildklein"]];

i don´t know where the problem is. there is no crash, but nothing is shown in the detailsview;

HELP, i need somebody, HELP....

iSDK · 03-20-2011, 08:14 AM

How are you declaring datalist1?

Quote:

Originally Posted by OldHank

Hey Guys,
i have a problem. i have a tableview which can be filled from a plist.

Code:

<dict>
	<key>besch</key>
	<string>level 1</string>
	<key>ItemChild</key>
	<array>
		<dict>
			<key>besch</key>
			<string>level 2</string>
			<key>ItemChild</key>
			<array>
				<dict>
					<key>besch</key>
					<string>level 3</string>
					<key>bildklein</key>
					<string>blume5_klein.jpg</string>
					<key>name</key>
					<string>Inside Inside Level 1</string>
				</dict>
			</array>
			<key>name</key>
			<string>INnside Level 1</string>
		</dict>
	</array>
	<key>name</key>
	<string>Level 1</string>
</dict>
</plist>

The data is loaded into an MutableArray.

Code:

interface View2Controller : UITableViewController {
	NSMutableArray* dataList1;   	
}

In die View2Controller in the cellForRowAtIndexPath i can use the data without a problem. Everything is going fine. The stings from the plist is shown where it should.

Code:

// Set up the cell...
	cell.textLabel.text = [[self.dataList1 objectAtIndex:indexPath.row] objectForKey: @"name"]; 	
    
    cell.detailTextLabel.text = [[self.dataList1 objectAtIndex:indexPath.row] 
                                 objectForKey:@"besch"];

now i have a detailview and want to fill some objects with the the same stuff and nothing happens...

i tried it like this:

Code:

_besch1Field.text = [dataList1 valueForKey:@"besch"];

_imageView.image = [UIImage imageNamed:[dataList1 valueForKey:@"bildklein"]];

i don´t know where the problem is. there is no crash, but nothing is shown in the detailsview;

HELP, i need somebody, HELP....

OldHank · 03-20-2011, 08:21 AM

Quote:

Originally Posted by iSDK

How are you declaring datalist1?

i do it in the rootviewcontroller.m

Code:

- (void)viewDidLoad {
    [super viewDidLoad];
	NSString *path = [[NSBundle mainBundle] pathForResource:@"DataDetail1" ofType:@"plist"]; 
	NSMutableArray* tmpArray = [[NSMutableArray alloc] 
								initWithContentsOfFile:path]; 

	self.dataList1 = tmpArray; 
	[tmpArray release];
}

Code:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
		
		
		View1Controller *view1Controller = [[View1Controller alloc] 
															initWithNibName:@"View2Controller" bundle:nil];
        
		view1Controller.dataList1 = [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"ItemChild"]; 

		[self.navigationController pushViewController:view1Controller animated:YES];
		[view1Controller release];
	}

everything work fine, until i want to read the content in the detailview

iSDK · 03-20-2011, 08:41 AM

Ok, so if the problem is passing data then there must be a problem in this line:

Code:

view1Controller.dataList1 = [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"ItemChild"];

So try NSLog'ing

Code:

[[self.dataList1 objectAtIndex:indexPath.row] objectForKey:@"ItemChild"];

Quote:

Originally Posted by OldHank

i do it in the rootviewcontroller.m

Code:

- (void)viewDidLoad {
    [super viewDidLoad];
	NSString *path = [[NSBundle mainBundle] pathForResource:@"DataDetail1" ofType:@"plist"]; 
	NSMutableArray* tmpArray = [[NSMutableArray alloc] 
								initWithContentsOfFile:path]; 

	self.dataList1 = tmpArray; 
	[tmpArray release];
}

Code:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
		
		
		View1Controller *view1Controller = [[View1Controller alloc] 
															initWithNibName:@"View2Controller" bundle:nil];
        
		view1Controller.dataList1 = [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"ItemChild"]; 

		[self.navigationController pushViewController:view1Controller animated:YES];
		[view1Controller release];
	}

everything work fine, until i want to read the content in the detailview

OldHank · 03-20-2011, 08:56 AM

Quote:

Originally Posted by iSDK

Ok, so if the problem is passing data then there must be a problem in this line:

Code:

view1Controller.dataList1 = [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"ItemChild"];

So try NSLog'ing

Code:

[[self.dataList1 objectAtIndex:indexPath.row] objectForKey:@"ItemChild"];

the data is passed perfectly... the problem is the show the data

Code:

_besch1Field.text = [dataList1 valueForKey:@"besch"];

_imageView.image = [UIImage imageNamed:[dataList1 valueForKey:@"bildklein"]];

is this the right way ?

OldHank · 03-20-2011, 09:25 AM

Yes, you were right...!!!!!

in the last viewcontroller, there is everything in the dataList1.

Code:

// Override to support row selection in the table view.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    
    // Navigation logic may go here -- for example, create and push another view controller.
    DetailViewController *detailViewController = [[DetailViewController alloc] 
                                                  initWithNibName:@"DetailViewController" bundle:nil];
   detailViewController.dataList1 = [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"ItemChild"]; ///Grabs relevant dictionary from array///

    
    
  //  detailViewController.drink = [self.dataList1 objectAtIndex:indexPath.row];

    
    [self.navigationController pushViewController:detailViewController animated:YES];
    
   

    
    [detailViewController release];

 //   detailViewController.title = [NSString stringWithFormat:@"X@", [dataList1 objectAtIndex:row];
                              
 detailViewController.title =  [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"besch"];

     NSLog(@"%@", dataList1);
        
}

Attaching to process 1977.
Pending breakpoint 1 - ""DetailViewController.m":40" resolved
Pending breakpoint 2 - ""View2Controller.m":77" resolved
2011-03-20 15:22:26.038 tableviews[1977:207] (
{
besch = "level 3";
bildklein = "blume5_klein.jpg";
name = "Inside Inside Level 1";
}
)

but there´s nothing inside in the detailview controller... i didn´t change anything and push the data the same way from the viewcontroller to the detailviewcontroller as a did to push the data from one viewcontroller to another...

OldHank · 03-20-2011, 09:40 AM

yes, there is something wrong with the plist structure...

Code:

 detailViewController.dataList1 = [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"ItemChild"]; ///Grabs relevant dictionary from array///

something is wrong when i want to push the content of the itemchild to the detailview..

i don´t get it whats wrong....

iSDK · 03-20-2011, 09:40 AM

Are you allocating the dataList1 in your detailViewController?

Quote:

Originally Posted by OldHank

Yes, you were right...!!!!!

in the last viewcontroller, there is everything in the dataList1.

Code:

// Override to support row selection in the table view.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    
    // Navigation logic may go here -- for example, create and push another view controller.
    DetailViewController *detailViewController = [[DetailViewController alloc] 
                                                  initWithNibName:@"DetailViewController" bundle:nil];
   detailViewController.dataList1 = [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"ItemChild"]; ///Grabs relevant dictionary from array///

    
    
  //  detailViewController.drink = [self.dataList1 objectAtIndex:indexPath.row];

    
    [self.navigationController pushViewController:detailViewController animated:YES];
    
   

    
    [detailViewController release];

 //   detailViewController.title = [NSString stringWithFormat:@"X@", [dataList1 objectAtIndex:row];
                              
 detailViewController.title =  [[self.dataList1 objectAtIndex:indexPath.row]objectForKey:@"besch"];

     NSLog(@"%@", dataList1);
        
}

Attaching to process 1977.
Pending breakpoint 1 - ""DetailViewController.m":40" resolved
Pending breakpoint 2 - ""View2Controller.m":77" resolved
2011-03-20 15:22:26.038 tableviews[1977:207] (
{
besch = "level 3";
bildklein = "blume5_klein.jpg";
name = "Inside Inside Level 1";
}
)

but there´s nothing inside in the detailview controller... i didn´t change anything and push the data the same way from the viewcontroller to the detailviewcontroller as a did to push the data from one viewcontroller to another...

OldHank · 03-20-2011, 10:07 AM

Quote:

Originally Posted by iSDK

Are you allocating the dataList1 in your detailViewController?

Yes, i think so,

Code:

#import <UIKit/UIKit.h>


@interface DetailViewController : UIViewController <UITextFieldDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate> {
  
    NSMutableArray* dataList1;   //allows data to be displayed in the Tableview in the form of an ARRAY// 

    IBOutlet UITextView *besch1Field;
    IBOutlet UITextView *besch2Field;
    IBOutlet UILabel *txtlabel;
    IBOutlet UIImageView *_imageView;
    
    
   


    
}

@property (nonatomic, retain) NSMutableArray* dataList1;
@property (nonatomic, retain) IBOutlet UITextView *besch1Field;
@property (nonatomic, retain) IBOutlet UITextView *besch2Field;
@property( nonatomic, retain) IBOutlet UILabel *txtlabel;
@property (nonatomic, retain) IBOutlet UIImageView *imageView;



@end

Code:

#import "DetailViewController.h"
#import <UIKit/UIKit.h>
#import "RootViewController.h"
#import "View2Controller.h"
#import "Constants.h"
#import "tableviewsAppDelegate.h"


@implementation DetailViewController
@synthesize dataList1;
@synthesize besch1Field = _besch1Field;
@synthesize besch2Field = _besch2Field;
@synthesize txtlabel = _txtlabel;
@synthesize imageView = _imageView;



- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization

    }
    return self;
}







- (void)didReceiveMemoryWarning
{
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
    
    // Release any cached data, images, etc that aren't in use.
}

#pragma mark - View lifecycle

- (void)viewDidLoad
{
    
    NSLog(@"%@", dataList1);
    
 
    
    _besch2Field.text = @"ins 2te feld";
 
      _besch1Field.text = [self.dataList1 valueForKey:@"besch"];

    
   
   _imageView.image = [UIImage imageNamed:[dataList1 valueForKey:@"bildklein"]];
    
    
    _txtlabel.text = @"statisch in ein label";
    
    _txtlabel.textColor = [UIColor blueColor];  

    
    
        
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
}

- (void)viewDidUnload
{
    self.besch1Field = nil;
    self.besch2Field = nil;
    self.txtlabel = nil;
    self.imageView = nil;
    
    [super viewDidUnload];
 
}





- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}


- (void)dealloc
{
    [_besch1Field release];
	_besch1Field = nil;
    
    [_besch2Field release];
	_besch2Field = nil;
    // [_txtlabel = release];
    _txtlabel = nil;
    [_imageView release];
	_imageView = nil;
    
    
    [dataList1 release];
    [super dealloc];
}



@end

iisword · 03-20-2011, 11:56 AM

Change datalist1 to a NSDictionary. You have lines like

Code:

[self.dataList1 valueForKey:@"besch"]

which are NSDictionary methods

OldHank · 03-20-2011, 12:54 PM

Quote:

Originally Posted by iisword

Change datalist1 to a NSDictionary. You have lines like

Code:

[self.dataList1 valueForKey:@"besch"]

which are NSDictionary methods

yes, i was trying this,
but i doesn´t work, because in the dataList1 is a undefined number of keys.

how can i convert the whole array to an nsdic without giving exact information about the content of the array...?