Send UITableViewCell across View Controllers - ios

Question

I want to select a UITableViewCell from my table view in one view controller and pass the data of the cell into another view controller.
Code:
-(void)pushView
{
myView.mainCell = [self.tableView cellForRowAtIndexPath:[NSIndexPath indexPathWithIndex:currentCell]];
[self.navigationController pushViewController:myView animated:YES];
}
myView is the view I want to push from my first view.
mainCell is a UITableViewCell property of myView. I want it be exactly what the selected cell is.
currentCell is just an integer that returns the row number of the cell selected.
How can I pass one cell across view controllers?

Answer 1

Actually you don't need to pass the cells as it will mess up the references as commented by many people. Take a look at this. Its discussing the same problem u r facing.
- (IBAction)nextScreenButtonTapped:(id)sender
{
DestinationViewController *destController = [[DestinationViewController alloc] init];
//pass the data here
destController.data = [SourceControllerDataSource ObjectAtIndex:currentCell];
[self.navigationController pushViewController:destController animated:YES];
}

Answer 2

Ah, I see what you want now.
What you want is to have some data displayed in a table view cell. Then to move somewhere else in the app and display the same data in a different table view but laid out in exactly the same way.
What you do then is this...
First create a new class which is a subclass of UITableViewCell call it something like MyTableViewCell.
The next part depends on whether you are using Interface Builder but I'll do everything in code for now.
In the new class create your interface properties in the .h file.
#interface MyTableViewCell : UITableViewCell
#property (nonatomic, strong) UILabel *nameLabel;
#property (nonatomic, strong) UIImageView *someImageView;
etc...
#end
Now in the .m file you can set it up like so...
#implementation MyTableViewCell
- (void)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
//set up your labels and add to the contentView.
self.nameLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
[self.contentView addSubView:self.nameLabel];
self.someImageView = ...
[self.contentView addSubView:self.someImageView];
// and so on for all your interface stuff.
}
return self;
}
#end
Now in the UITableViewController that you want to use this cell you can do...
- (void)viewDidLoad
{
// other stuff
[self.tableView registerClass:[MyTableViewCell class] forCellReuseIdentifier:#"MyCustomCellReuseIdentifier"];
// other stuff
}
Then in cell for row...
- (UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
MyTableViewCell *customCell = [tableView dequeueReusableCellWithIdentifier:#"MyCustomCellReuseIdentifier"];
customCell.nameLabel.text = //some string that you got from the data
customCell.someImageView.image = //some image that you got from the data
return customCell;
}
Doing this you can use the same cell layout in multiple places and all you have to do is populate the data.
When you pass the data to a new table view you can use the same cell class to re-populate it with the data that was passed around.
Never pass around a UIView or UIView subclass. They should not contain data that way. The are only used to display it.