How to update custom image if table cell is selected outside controller - iphone

Question

I need to update image in Firstviewcontroller if cell is selected in tableviewcontroller.
My application Navigation base . Firstviewcontroller contains button event. tap on button i am firing tableview. In tableview i am selecting cell and updating checkmark in left side , It is working fine . My question is when cell is selected same time i need to update different custom image in viewcontroller for indicating cell is selected. With ref. i got image cell selecting in inside of tableview.
here it is Appdelegate
#interface FertilityAppAppDelegate : NSObject <UIApplicationDelegate>
{
Fertility *updateImage;
}
#property (nonatomic, retain) Fertility *updateImage;
#implementation
#synthesize updateImage;
#interface Fertility : UIViewController
{
UIImageView *imgView;
FertilityAppAppDelegate *Appdelegate;
}
#property(nonatomic,retain) FertilityAppAppDelegate *Appdelegate;
#property (nonatomic, retain) UIImageView *imgView;
Viewcontroller for image update
#implementation Fertility
#synthesize imgView,Appdelegate;
- (void)viewDidLoad
{
[super viewDidLoad];
Appdelegate = (FertilityAppAppDelegate*)[[UIApplication sharedApplication] delegate];
}
- (void)changeImg:(UIImage*)image
{
imgView.image = image;
}
- (void)assignObjToTableViewClass
{
Appdelegate.updateImage = self;
}
Tableview controller
#interface Menstruation : UITableViewController
{
FertilityAppAppDelegate *Appdelegate;
}
#property (nonatomic, retain) FertilityAppAppDelegate *Appdelegate;
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UIImage *image = [UIImage imageNamed:#"bar.png"];
[Appdelegate.updateImage changeImg:image];
selectedRow = indexPath.row;
[self.tableView reloadData];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
[[cell imageView] setImage:[UIImage imageNamed:#"Tick.png"]];
}
[[cell imageView] setHidden:YES];
if (indexPath.row == selectedRow)
{
[[cell imageView] setHidden:NO];
}
NSString *cellValue = [MenstruationArray objectAtIndex:indexPath.row];
cell.text = cellValue;
return cell;
}
How to display in Firstviewcontroller. the above image is Button with red color bar in bottom of button.
When i click this button in Firstviewcontroller firing for Menstruation table view, same time i need to update image bar to Firstviewcontroller.

Answer 1

if you want to change the image in the another view controller then you need to assign the image in the didSelectRowAtIndexPath method.
For that you need to access the specific view controller object(that is already using not the new one).
There are no tutorials, for these type of things.
I will send some code, please follow like that.
First of all you have to declare ImgViewController class object in the AppDelegateClass. Then only you can use.
Then use the following code. I have written this code for understanding.
#interface ImgViewController : UIViewController{
UIImageView *imgView;
AppDelegateClass *delegate;
}
#implementation ImgViewController
- (void)viewDidLoad{
delegate = (AppDelegateClass*)[[UIApplication sharedApplication]delegate];
delegate.imageViewControllerObj = self; // Or you can call the method
//[self assignObjToTableViewClass];
}
- (void)changeImg:(UIImage*)image{
imgView.image = image;
}
- (void)assignObjToTableViewClass{
delegate.imageViewControllerObj = self;
}
#end
#interface TableViewControllerClass : UIViewController{
AppDelegateClass *delegate;
}
#implementation TableViewControllerClass
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
UIImage *image = //Give what ever image you want to change
[delegate.imageViewControllerObj changeImg:image];
}
#end
Regards,
Satya