UitableView change sectionView after tap - ios

Question

if i tap section, tableview expand onlu current this section, and in sectionView change indicator color
if i collapses section - indicator color have another color
problem - sometimes color's mot change
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 80)];
headerView.backgroundColor = [UIColor lightGrayColor];
UIButton *buttonHeader = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 320, 80)];
[buttonHeader addTarget:self action:#selector(expandGroup:) forControlEvents:UIControlEventTouchUpInside];
buttonHeader.tag = section;
UIImageView *expandIndicator = [[UIImageView alloc] init];
expandIndicator.frame = CGRectMake(270, 25, 30, 30);
expandIndicator.backgroundColor = [UIColor darkGrayColor];
if ([[_exerciseForGroup objectAtIndex:section] count] > 0) {
expandIndicator.backgroundColor = [UIColor greenColor];
}
UILabel *labeHeader = [[UILabel alloc] initWithFrame:CGRectMake(20, 10, 100, 60)];
labeHeader.text = [[_groups objectAtIndex:section] objectForKey:#"nameExerciseGroup"];
[labeHeader setFont:[UIFont systemFontOfSize:25]];
[buttonHeader addSubview:labeHeader];
[buttonHeader addSubview:expandIndicator];
[headerView addSubview:buttonHeader];
return headerView;
}
- (IBAction)expandGroup:(id)sender {
UIButton *button = (UIButton *) sender;
int section = [button tag];
if ([[_exerciseForGroup objectAtIndex:section] count] == 0) {
[self addAllExerciseFromGroupInSection:section];
} else {
[self deleteExerciseFromGroupInSection:section];
}
}
- (void)addAllExerciseFromGroupInSection:(int)section {
[_tableviewExercise reloadData];
NSMutableArray *indexPaths = [[NSMutableArray alloc] init];
for (int i = 0; i < [[_originalExercise objectAtIndex:section] count]; i++) {
[[_exerciseForGroup objectAtIndex:section] addObject:[[_originalExercise objectAtIndex:section] objectAtIndex:i]];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:section];
[indexPaths addObject:indexPath];
}
[_tableviewExercise beginUpdates];
[_tableviewExercise insertRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationFade];
[_tableviewExercise endUpdates];
[_tableviewExercise scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:section] atScrollPosition:UITableViewScrollPositionMiddle animated:YES];
NSMutableArray *indexPathsForDeleteBefore = [[NSMutableArray alloc] init];
for (int i = 0; i < section; i++) {
int count = [[_exerciseForGroup objectAtIndex:i] count];
for (int j = 0; j < count; j++) {
[[_exerciseForGroup objectAtIndex:i] removeObjectAtIndex:0];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:j inSection:i];
[indexPathsForDeleteBefore addObject:indexPath];
}
}
[_tableviewExercise beginUpdates];
[_tableviewExercise deleteRowsAtIndexPaths:indexPathsForDeleteBefore withRowAnimation:UITableViewRowAnimationFade];
[_tableviewExercise endUpdates];
NSMutableArray *indexPathsForDeleteAfter = [[NSMutableArray alloc] init];
for (int i = section + 1; i < [_groups count]; i++) {
int count = [[_exerciseForGroup objectAtIndex:i] count];
for (int j = 0; j < count; j++) {
[[_exerciseForGroup objectAtIndex:i] removeObjectAtIndex:0];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:j inSection:i];
[indexPathsForDeleteAfter addObject:indexPath];
}
}
[_tableviewExercise beginUpdates];
[_tableviewExercise deleteRowsAtIndexPaths:indexPathsForDeleteAfter withRowAnimation:UITableViewRowAnimationFade];
[_tableviewExercise endUpdates];
}
- (void)deleteExerciseFromGroupInSection:(int)section {
[_tableviewExercise reloadData];
NSMutableArray *indexPaths = [[NSMutableArray alloc] init];
int count = [[_exerciseForGroup objectAtIndex:section] count];
for (int i = 0; i < count; i++) {
[[_exerciseForGroup objectAtIndex:section] removeObjectAtIndex:0];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:section];
[indexPaths addObject:indexPath];
}
[_tableviewExercise beginUpdates];
[_tableviewExercise deleteRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationFade];
[_tableviewExercise endUpdates];
}

Answer 1

YourViewController.h
#interface AboutVC : UIViewController
{
int section_expand;
}
YourViewController.m
- (void)viewDidLoad
{
section_expand = -1;
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 10;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if (section_expand == section)
{
return [arr count];
}
else
{
return 0;
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section;
{
return 80;
}
-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 80)];
headerView.backgroundColor = [UIColor lightGrayColor];
//UIButton *buttonHeader = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 320, 80)];
//[buttonHeader addTarget:self action:#selector(expandGroup:) forControlEvents:UIControlEventTouchUpInside];
//buttonHeader.tag = section;
UIButton *buttonHeader=[UIButton buttonWithType:UIButtonTypeCustom];
[buttonHeader setFrame:CGRectMake(0, 0, 320, 80)];
buttonHeader.tag=section;
[buttonHeader addTarget:self action:#selector(expandGroup:) forControlEvents:UIControlEventTouchUpInside];
[headerView addSubview:buttonHeader];
UIImageView *expandIndicator = [[UIImageView alloc] init];
expandIndicator.frame = CGRectMake(270, 25, 30, 30);
if (section_expand == section)
{
expandIndicator.backgroundColor = [UIColor greenColor];
}
else
{
expandIndicator.backgroundColor = [UIColor darkGrayColor];
}
UILabel *labeHeader = [[UILabel alloc] initWithFrame:CGRectMake(20, 10, 100, 60)];
labeHeader.text = [[_groups objectAtIndex:section] objectForKey:#"nameExerciseGroup"];
[labeHeader setFont:[UIFont systemFontOfSize:25]];
[buttonHeader addSubview:labeHeader];
[buttonHeader addSubview:expandIndicator];
[headerView addSubview:buttonHeader];
return headerView;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 60;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *CellIdentifier = [NSString stringWithFormat:#"cell %d",indexPath.section];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
cell = nil;
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
cell.backgroundColor = [UIColor clearColor];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath;
{
}
-(IBAction)expandGroup:(id)sender
{
UIButton *btn = (UIButton *)sender;
section_expand = btn.tag;
[_TBL reloadData];
}