Saving selected table rows

[WeaselPig]

Hi Guys

I'm building an app which will allow people to select one or more rows from a table view which shows the day of the week by using a check mark.

I would then like a separate view to show a label which lists which days have been selected from the table view.

I have set up my table view and the other view with no issues but I am having real problems saving which selections the user has chosen.

Any help would be greatly appreciated.

Thanks

[mavrik5150]

Well this is just me thinking out loud but one thing you could do is in the didSelectrow method of the table view you have have an Array that add's the text of each cell to the array when it's selected and then pass that array over to the new view to populate the label. Without any code example of what your working with I don't know if this would fully work or not.

[WeaselPig]

Originally Posted by mavrik5150

Well this is just me thinking out loud but one thing you could do is in the didSelectrow method of the table view you have have an Array that add's the text of each cell to the array when it's selected and then pass that array over to the new view to populate the label. Without any code example of what your working with I don't know if this would fully work or not.

This is my code so far, the good news is that by using NSUserdefaults my selected days are saved and I am able to set up the label on the other view.
The bad news is that when I go back on to the select a day table view the user default loads but is then wiped clear.

I know that this has something to do with the cellForRowAtIndexPath method but I am unable to figure out how to make the chekmarks persist based on the saved data in NSUserdefaults.

Can anyone help please?

#import "DayView.h"

@implementation DayView

@synthesize sourceArray;
@synthesize selectedArray;



- (id)init
{
    self = [super initWithStyle:UITableViewStyleGrouped];
    if (self) {
        // Custom initialization
        [[self navigationItem] setTitle:@"Days"];
        
        [[self tableView] setBackgroundColor:[UIColor clearColor]]; 
        
    }
    return self;
}

- (void)viewWillDisappear:(BOOL)animated
{
    // create a standardUserDefaults variable
    NSUserDefaults * standardUserDefaults = [NSUserDefaults standardUserDefaults];
    
    // Convert array to string
    NSString *time = [[selectedArray valueForKey:@"description"] componentsJoinedByString:@","];
    
    // saving an NSString
    [standardUserDefaults setObject:time forKey:@"string"];
    
    NSLog(@"Disapear: %@", time);
}



- (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 {
    [super viewDidLoad];
    
    // create a standardUserDefaults variable
    NSUserDefaults * standardUserDefaults = [NSUserDefaults standardUserDefaults];
    
    // getting an NSString object
    NSString *myString = [standardUserDefaults stringForKey:@"string"];
    
    NSLog(@"Appear: %@", myString);
    

    NSMutableArray * tempArray = [[NSMutableArray alloc] init];
	[self setSelectedArray:tempArray];
	[tempArray release];
	
	NSArray * tempSource = [[NSArray alloc] initWithObjects:@"Monday", @"Tuesday", @"Wednesday", @"Thursday", @"Friday", @"Saturday",nil];
	[self setSourceArray:tempSource];
	[tempSource release];
    
	[self.tableView reloadData];
}

#pragma mark -
#pragma mark Table view data source

// Customize the number of sections in the table view.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}


// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
 
    return [self.sourceArray count];;
}


// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"Cell";
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }
    

    NSString *time = [sourceArray objectAtIndex:indexPath.row];
    cell.textLabel.text = time;
    
    
	if ([self.selectedArray containsObject:[self.sourceArray objectAtIndex:indexPath.row]])

    {
		[cell setAccessoryType:UITableViewCellAccessoryCheckmark];
	}
	else
	{
		[cell setAccessoryType:UITableViewCellAccessoryNone];
	}
    
   
    NSLog(@"Selected Days: %@", selectedArray);

    
    return cell; 
}


- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
    return @"Which times you are available?"; 
}

#pragma mark -
#pragma mark Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    
	if ([self.selectedArray containsObject:[self.sourceArray objectAtIndex:indexPath.row]]){
		[self.selectedArray removeObjectAtIndex:[self.selectedArray indexOfObject:[self.sourceArray objectAtIndex:indexPath.row]]];
	}
	else
	{
		[self.selectedArray addObject:[self.sourceArray objectAtIndex:indexPath.row]];
	}
	
	[tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];
	[tableView deselectRowAtIndexPath:indexPath animated:YES];
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

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

@end