Saving NSUserDefault data and showing it in table view - ios

Question

I am trying to save my data by NSUserDefaults and view it in table view. I have already set four texts data to an array (dataArray) so I can view it in the table view. but I couldn't load the data to the table view. So am I missing something?
Thanks in advance.
-(IBAction)save{
NSUserDefaults *add1 = [NSUserDefaults standardUserDefaults];
[add1 setObject:txt1 forKey:#"txt1"];
[add1 setObject:txt2 forKey:#"txt2"];
[add1 setObject:txt3 forKey:#"txt3"];
[add1 setObject:txt4 forKey:#"txt4"];
[add1 synchronize];
}
- (void)viewDidLoad
{
[super viewDidLoad];
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
self.dataArray = [NSArray arrayWithObjects:[prefs objectForKey:#"txt1"], [prefs objectForKey:#"txt2"], [prefs objectForKey:#"txt3"],[prefs objectForKey:#"txt4"] nil];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
// Set up the number of rows
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [dataArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *string = [dataArray objectAtIndex:indexPath.row];
static NSString *CellIdentifier = #"Cell";
UITableView *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
}

Answer 1

You have to call [yourUserDefaultObject synchronize]; to save the state of the NSUserDefaults, but you don't really need to create 4 objects of NSUserDefaults, you can just create it one time and then call setObject:forKey: on the same instance and then synchronize.
Then just set cell.textLabel.text=string; to set the label of the cell in the cellForRowAtIndexPath callback.

Answer 2

First syncronize nsuserdefaults and
You need to alloc the tableviewcell and assign the text to the text label
Add following code in your cellForRowAtindexpath method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *string = [dataArray objectAtIndex:indexPath.row];
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell==nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
cell.textLabel.text=string;
return cell;
}

Answer 3

Dude add following line because you need to add test somewhere in cell. So that can display on tablviewcell. If possible than please first make array than save whole array in NSUserDefaults by that way you save your time and that's better way to do coding.
cell.textLabel.text=string;
Edited>>>
UILabel *label;
label = [[UILabel alloc]initWithFrame:CGRectMake(10, 10, 50, 40)];
label.text = string;
// or
label.text = #"Hi I am here..";
label.backgroundColor = [UIColor greenColor];
label.textColor = [UIColor whiteColor];
[cell addSubview:label];