Question

I have a string that has a value that keeps on changing/updated and I want to kind of bind this to my cell.textLabel.text. How can I do this?

This is similar to the datepicker that we have on the iphone… the cell is updated everytime we change the picker view value

Here’s how I had it laid out:

@interface DatePickerViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> {
    UITableView * date;
    UIDatePicker * datePicker;
    NSString * dateString;
}

@property(nonatomic, retain) IBOutlet UITableView * date;
@property(nonatomic, retain) IBOutlet UIDatePicker * datePicker;


- (IBAction)dateChangedAction:(id)sender;

@end

Answer 1

Since you are using the Date Picker

// when creating datePicker object
[datePicker addTarget:self action:@selector(changeDateInCell:)
     forControlEvents:UIControlEventValueChanged];

Create method to respond to event

- (void)changeDateInCell:(id)sender{
     //Use NSDateFormatter to get string
     NSDateFormatter *df = [[NSDateFormatter alloc] init];
     df.dateStyle = NSDateFormatterMediumStyle;
     NSString * text = [NSString stringWithFormat:@"%@", 
                                        df stringFromDate:datePicker.date]];

     // do something to set the cell data with the text...

     // clean up
     [df release];

}