How to save data of tableview cell - iphone

Question

i am using custom checkbox buttons in my table view and want to save the selected cell's data to a mutable array.... can anyone help me... Thanks

Answer 1

create a mutable array to store your selected data, lets call it 'yourSeparatedData' , set the tag of your checkbox in cellForRowAtIndexPath and set onCheck: method as target. the code will look like this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *CellIdentifier = #"setMe";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyle………
}
checkBox = [UIButton buttonWithType:UIButtonTypeRoundedRect];
checkBox.frame = CGRectMake(customizeMe);
if(yourSeparatedData && [yourSeparatedData indexOfObject:[yourTableViewDataSource objectAtIndex:indexPath.row]] != NSNotFound)
{
[checkBox setBackgroundImage:[UIImage imageNamed:#"check.png"] forState:UIControlStateNormal];
}
else {
[checkBox setBackgroundImage:[UIImage imageNamed:#"unCheck.png"] forState:UIControlStateNormal];
}
[checkBox addTarget:self action:#selector(onCheck:) forControlEvents:UIControlEventTouchUpInside];
[checkBox setTag:indexPath.row];
[cell addSubview:checkBox];
return cell;
}
-(void)onCheck:(id)sender {
if(yourSeparatedData && [yourSeparatedData indexOfObject:[yourTableViewDataSource objectAtIndex:[sender tag]]] != NSNotFound)
{
[sender setBackgroundImage:[UIImage imageNamed:#"unCheck.png"] forState:UIControlStateNormal];
[yourSeparatedData removeObject:[yourTableViewDataSource objectAtIndex:[sender tag]]];
}
else {
[sender setBackgroundImage:[UIImage imageNamed:#"check.png"] forState:UIControlStateNormal];
[yourSeparatedData addObject:[yourTableViewDataSource objectAtIndex:[sender tag]]];
}
[yourTableView reloadData];
}
this code is not tested, you are using checkbox so I assumed that you want to separate not just one data, at the end of the selection, you will have 'yourSeparatedData' with the objects picked from your tableView.

Answer 2

you can try custom action in UITableView cell for button prees,you can also use put a check box image and on click you can change the image as checked here is the code
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath{
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:#"identifire"];
cell=[[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:#"identifire"] autorelease];
cell.detailTextLabel.text=[id_Array objectAtIndex:indexPath.row];
cell.detailTextLabel.hidden=YES;
button = [UIButton buttonWithType:UIButtonTypeCustom];
NSString *path1 = [[NSBundle mainBundle] pathForResource:#"n_cross" ofType:#"png"];
UIImage *buttonImage1 = [[UIImage alloc] initWithContentsOfFile:path1];
[button setImage:buttonImage1 forState:UIControlStateNormal];
[button addTarget:self
action:#selector(customActionPressed:)
forControlEvents:UIControlEventTouchDown];
[button setTitle:#"Custom Action" forState:UIControlStateNormal];
button.frame = CGRectMake(245.0f, 20.0f, 40.0f, 40.0f);
[cell addSubview:button];
[buttonImage1 release];
CGRect imageFrame=CGRectMake(10,8,50,50);
self.cellimage=[[[UIImageView alloc] initWithFrame:imageFrame] autorelease];
self.cellimage.image=[imageIdArray objectAtIndex:indexPath.row];
[cell.contentView addSubview:self.cellimage];
return cell;
}
-(void)customActionPressed :(id)sender
{
//Get the superview from this button which will be our cell
UITableViewCell *owningCell = (UITableViewCell*)[sender superview];
NSIndexPath *cell = [_tableView indexPathForCell:owningCell];
NSString *uid=[id_Array objectAtIndex:cell.row];
[id_Array removeObjectAtIndex:cell.row];
[_tableView reloadData];
[self performSelectorInBackground:#selector(ignoreRequest:) withObject:uid];
}
here i have an id_Array and on selection of a cell i just remove the object at that index

Answer 3

You have to do this manually, there is no facility in a UITableView or UITableViewController t o do this automatically.

Answer 4

When user selects any cell then in didSelectRowAtIndexPath you can add selected object dynamically.
[someMutableArr addObject:[tableArr objectAtIndex:indexPath.row]];

Answer 5

Try this
- (void)onButtonClick {
int numberOfSections = [tableView numberOfSections];
for (int section = 0; section < numberOfSections; section++) {
int numberOfRows = [tableView numberOfRowsInSection:section];
for (int row = 0; row < numberOfRows; row++) {
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:row inSection:section];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
if (cell.accessoryType == UITableViewCellAccessoryCheckmark) {
// Cell is selected
//here you can add that values into an array
} else {
// Cell is not selected
}
}
}
}