Expand And Collapse UITableview - iphone

Question

Am using below code for uitableview expand and collapse.Its works fine.But,when i select any section its expand but not collapse the previously expanded section.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([self tableView:tableView canCollapseSection:indexPath.section])
{
if (!indexPath.row)
{
// only first row toggles exapand/collapse
[tableView deselectRowAtIndexPath:indexPath animated:YES];
NSInteger section = indexPath.section;
BOOL currentlyExpanded = [expandedSections containsIndex:section];
NSInteger rows;
NSMutableArray *tmpArray = [NSMutableArray array];
if (currentlyExpanded)
{
rows = [self tableView:tableView numberOfRowsInSection:section];
NSLog(#"expanded");
[expandedSections removeIndex:section];
screenTypeReloadCheck = NO;
}
else
{
screenTypeReloadCheck =YES;
[expandedSections addIndex:section];
rows = [self tableView:tableView numberOfRowsInSection:section];
}
for (int i=1; i<rows; i++)
{
NSIndexPath *tmpIndexPath = [NSIndexPath indexPathForRow:i
inSection:section];
[tmpArray addObject:tmpIndexPath];
}
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
if (currentlyExpanded)
{
[tableView deleteRowsAtIndexPaths:tmpArray
withRowAnimation:UITableViewRowAnimationTop];
UIImageView *imView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"UITableExpand"]];
cell.accessoryView = imView;
}
else
{
[tableView insertRowsAtIndexPaths:tmpArray
withRowAnimation:UITableViewRowAnimationTop];
UIImageView *imView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"UITableContract"]];
cell.accessoryView = imView;
}
}
}
}
Thanks

Answer 1

I've done same thing in my app.. Here is solution ..
in your .h
#import "sampleCustomCell.h"
#interface second : UIViewController <UITableViewDelegate,UITableViewDataSource>
{
NSMutableDictionary *selectedIndexes;
sampleCustomCell *samplCustom;
UITableView *tblTempData;
NSMutableArray *yourAry;
}
#property(nonatomic,retain) sampleCustomCell *samplCustom;
#property (nonatomic,retain) NSMutableArray *yourAry;
#property (nonatomic,retain) IBOutlet UITableView *tblTempData;
#end
in your .m
#synthesize samplCustom;
#synthesize tblTempData;
BOOL isSelected;
int kCellHieght=0;
- (void)viewDidLoad
{
[super viewDidLoad];
yourAry = [[NSMutableArray alloc] initWithObjects:#"1_id",#"2_id",#"3_id",#"4_id",#"5_id",#"6_id",#"7_id",#"8_id",#"9_id",#"10_id", nil];
selectedIndexes = [[NSMutableDictionary alloc] init];
}
#pragma mark TableView with Expand and collapse
- (BOOL)cellIsSelected:(NSIndexPath *)indexPath {
// Return whether the cell at the specified index path is selected or not
NSLog(#"%#", selectedIndexes);
NSNumber *selectedIndex = [selectedIndexes objectForKey:indexPath];
NSLog(#"%#", selectedIndex);
return selectedIndex == nil ? FALSE : [selectedIndex boolValue];
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
if([self cellIsSelected:indexPath])
{
kCellHieght = 200; //Expanded height for your customCell xib.
}
else
{
kCellHieght = 130; // Height of your customCell xib
}
return kCellHieght;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [yourAry count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
sampleCustomCell *cell;
if (tableView.tag == 11)
{
cell = (sampleCustomCell *)[tableView dequeueReusableCellWithIdentifier:#"sampleCustomCell"];
NSArray *nib;
for (UIControl *subview in cell.contentView.subviews) {
[subview removeFromSuperview];
}
if(cell == nil)
{
nib = [[NSBundle mainBundle] loadNibNamed:#"sampleCustomCell" owner:self options:nil];
for(id oneobject in nib)
{
if([oneobject isKindOfClass:[sampleCustomCell class]])
{
cell = (sampleCustomCell *)oneobject;
//[cell setIndexpath:indexPath];
//[cell setDelegete:self];
cell.lblProduct.text = [yourAry objectAtIndex:[indexPath row]];
}
}
}
if([self cellIsSelected:indexPath])
{
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:3];
[UIView commitAnimations];
[self performSelector:#selector(showHidden:) withObject:cell afterDelay:0.4];
}
}
return cell;
}
- (void)tableView:(UITableView *)aTableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyleforRowAtIndexPath:(NSIndexPath *)indexPath
{
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
isSelected = ![self cellIsSelected:indexPath];
[tableView deselectRowAtIndexPath:indexPath animated:TRUE];
BOOL isSelected = ![self cellIsSelected:indexPath];
NSNumber *selectedIndex = [NSNumber numberWithBool:isSelected];
[selectedIndexes removeAllObjects];
[self hideTV:tableView];
[selectedIndexes setObject:selectedIndex forKey:indexPath];
NSLog(#" array %#", selectedIndexes);
[self.tblTempData beginUpdates];
sampleCustomCell *selectedCell = (sampleCustomCell *)[tblTempData cellForRowAtIndexPath:indexPath];
if([self cellIsSelected:indexPath])
{
samplCustom = selectedCell;
[UIView animateWithDuration:15 delay:0.2 options:UIViewAnimationCurveLinear animations:^{NSLog(#"animating");} completion:^(BOOL finished){
NSLog(#"Done 1!");
}];
[UIView commitAnimations];
}
else
{
[UIView animateWithDuration:5 delay:0.2 options:UIViewAnimationCurveLinear animations:^{NSLog(#"animating");} completion:^(BOOL finished){
NSLog(#"Done 1!");
}];
[UIView commitAnimations];
}
[self.tblTempData endUpdates];
[tblTempData reloadData];
}
-(void)hideTV:(UIView *) view{
[tblTempData reloadData];
for (id View in [view subviews]) {
if ([View isKindOfClass:[UITextView class]]) {
[View setHidden:YES];
}
if ([View isKindOfClass:[UITableViewCell class]]) {
UITableViewCell *cell = (UITableViewCell *) View;
[self hideTV:cell.contentView];
}
}
}
-(void) showHidden : (UITableViewCell *)cell{
for (id View in [cell subviews]) {
if ([View isKindOfClass:[UITextView class]]) {
if ([View tag] == 111) {
[View setHidden:NO];
}
}
}
}
Hopr this helps.. happy coding.. Thanks..

Answer 2

TableView section is not collapse but expand. Because, Your currentlyExpanded is always return NO. SO, you are always getting expand.
if (currentlyExpanded)
{
rows = [self tableView:tableView numberOfRowsInSection:section];
NSLog(#"expanded");
[expandedSections removeIndex:section];
screenTypeReloadCheck = NO;
}
else
{
screenTypeReloadCheck =YES;
[expandedSections addIndex:section];
rows = [self tableView:tableView numberOfRowsInSection:section];
}
I do not know how do you set currentlyExpanded value. If you need more help, please share few more lines of code.