get the referance of uitableviewcell on click of a button in uialertview - ios

Question

I have a very tricky situation. And all things I have did programmatically.
1) I have UITableView.
2) In every cell of this tableview I have one uibutton.
3) On click of UIButton I want to show a UIAlertView, Which have yes and not buttons.
4) On click of yes button I want to delete that cell whose UIButton had shown up this alertview.
Below is my code snippet:
- (void) removeFriends:(id)sender
{
/*
I want to show alertview at here...
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(#"CONFIRM",nil) message:NSLocalizedString(#"REMOVE_FRIEND",nil) delegate:self cancelButtonTitle:#"No" otherButtonTitles:#"Yes", nil];
alert.tag = 21;
alert.accessibilityIdentifier = #"Remove";
[alert show];
*/
UIButton *btn = (UIButton*)sender;
int indx = btn.tag;
NSString *friend_id = [friendsId valueForKey:[NSString stringWithFormat:#"%d",indx]];
// URL creation
NSString *path = [[NSBundle mainBundle] objectForInfoDictionaryKey:#"path"];
NSString *address = [NSString stringWithFormat:#"%#%#%#", path,#"users/",usrId];
NSURL *URL = [NSURL URLWithString:address];
// request creation
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL cachePolicy:NSURLCacheStorageAllowedInMemoryOnly
timeoutInterval:60.0];
[request setHTTPMethod:#"DELETE"];
responseData = [[NSMutableData alloc] init];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection start];
UITableViewCell *buttonCell = (UITableViewCell *)[btn superview];
NSIndexPath* pathOfTheCell = [self.table indexPathForCell:buttonCell];
[self.table deleteRowsAtIndexPaths:[NSArray arrayWithObjects:pathOfTheCell, nil] withRowAnimation:UITableViewRowAnimationFade];
[self viewDidLoad];
[self.table reloadData];
}
-(void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if([alertView.accessibilityIdentifier isEqualToString:#"Remove"])
{
if (buttonIndex == 1)
{
// here want to make call to server
}
}
}

Answer 1

Just put this:
NSString *friend_id = [friendsId valueForKey:[NSString stringWithFormat:#"%d",indx]];
// URL creation
NSString *path = [[NSBundle mainBundle] objectForInfoDictionaryKey:#"path"];
NSString *address = [NSString stringWithFormat:#"%#%#%#", path,#"users/",usrId];
NSURL *URL = [NSURL URLWithString:address];
NSLog(#"%#",address);
// request creation
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL cachePolicy:NSURLCacheStorageAllowedInMemoryOnly
timeoutInterval:60.0];
[request setHTTPMethod:#"DELETE"];
responseData = [[NSMutableData alloc] init];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection start];
UITableViewCell *buttonCell = (UITableViewCell *)[btn superview];
NSIndexPath* pathOfTheCell = [self.table indexPathForCell:buttonCell];
[self.table deleteRowsAtIndexPaths:[NSArray arrayWithObjects:pathOfTheCell, nil] withRowAnimation:UITableViewRowAnimationFade];
[self viewDidLoad];
[self.table reloadData];
into this:
if([alertView.accessibilityIdentifier isEqualToString:#"Remove"]){
if (buttonIndex == 1) {
// here want to make call to server
}
}
and create a property in your .h file which will be holding the id of the button which had been pressed. Like this:
//in your .h file
#property (nonatomic, strong) NSString *yourId;
and in your button-action just set it like this:
self.yourId = [friendsId valueForKey:[NSString stringWithFormat:#"%d",indx]];
In the first code snippet I guess you will have to replace usrId with self.yourId, so it will be
NSString *address = [NSString stringWithFormat:#"%#%#%#", path,#"users/",self.yourId];
EDIT:
Remove this:
UITableViewCell *buttonCell = (UITableViewCell *)[btn superview];
and change this:
NSIndexPath* pathOfTheCell = [self.table indexPathForCell:buttonCell];
to this:
NSIndexPath* pathOfTheCell = [NSIndexPath indexPathForRow:self.yourId]
self.yourID is the indexPath.row value which was saved in your button.tag property.

Answer 2

In this situation, you can assign index of cell inalertview tag and use this tag to perform your operation.
Thanks
Update:
-(void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if([alertView.accessibilityIdentifier isEqualToString:#"Remove"])
{
if (buttonIndex == 1)
{
// here want to make call to server
// User alertView.tag as index to delete
}
}
}

Answer 3

view.h
#interface MyReservationViewController : UIViewController
{
int Delete_row;
}
view.m
- (IBAction)delete_btn:(id)sender
{
UIButton *buttontag = (UIButton *)sender;
//NSLog(#"%d",buttontag.tag);
Delete_row = buttontag.tag;
UIAlertView *Alert = [[UIAlertView alloc]initWithTitle:#"Delete Reservation" message:#"Are you sure to want Delete Reservation ??" delegate:self cancelButtonTitle:#"Delete" otherButtonTitles:#"Cancel",nil];
Alert.tag=1;
[Alert show];
[Alert release];
}
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if(alertView.tag==1)
{
if(buttonIndex == 0)
{
NSLog(#"%d",Delete_row);
//delete cell
[Arr removeObject:Delete_row];
[tbl reloadData];
}
}
}

Answer 4

-(void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if([alertView.accessibilityIdentifier isEqualToString:#"Remove"])
{
if (buttonIndex == 1)
{
// add server call to delete the relevant data
// and then refresh your array that you are using in cellForRowAtIndex
//and reload table. thats it.
}
}