I'm willing to change a specific header view of my UITableView when I click a row.
I've read all posts about it yet. I tried "reloadData", "setNeedDisplay", "reloadSections:withRowAnimation:", and several others ideas… there is nothing to do. My header view either doesn't update or it does weird things like updating only when I move the table view (which is not what I'm willing to achieve).
My code looks like this for now (regarding the UITableView delegates methods):
-(NSInteger)numberOfSectionsInTableView:(UITableView*)tableView {
if(tableView==_storeTableView){
return [_storeDataArray count];
} else {
return 1;
}
}
-(UIView*)tableView:(UITableView*)tableView viewForHeaderInSection:(NSInteger)section {
if(tableView==_storeTableView){
HouraStoreHeaderModel *headerModel = [self.headerInfoArray objectAtIndex:section];
if (!headerModel.headerView) {
NSString *shelfName = headerModel.shelf;
headerModel.headerView = [[[HouraStoreHeaderView alloc] initWithFrame:CGRectMake(0.0, 0.0, _storeTableView.bounds.size.width, 80) title:shelfName section:section subheaderNumber:([headerModel.openedSubHeaders count]-1) delegate:self] autorelease];
}
return headerModel.headerView;
} else {
return nil;
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if(tableView==_storeTableView){
HouraStoreHeaderModel *headerModel = [self.headerInfoArray objectAtIndex:section];
NSDictionary *myDict = _storeDataDict;
for (NSInteger i = 0; i < [headerModel.openedSubHeaders count]; i++) {
myDict = [myDict objectForKey:[headerModel.openedSubHeaders objectAtIndex:i]];
}
NSInteger numberOfRowsInSection = [[myDict allKeys] count];
return headerModel.open ? numberOfRowsInSection : 0;
} else if(tableView==_searchTableView){
return [_resultArray count];
} else {
return 0;
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}
if(tableView==_storeTableView){
HouraStoreHeaderModel *headerModel = [self.headerInfoArray objectAtIndex:indexPath.section];
NSDictionary *myDict = _storeDataDict;
for (NSInteger i = 0; i < [headerModel.openedSubHeaders count]; i++) {
myDict = [myDict objectForKey:[headerModel.openedSubHeaders objectAtIndex:i]];
}
cell.accessoryView=[[[HouraStoreCellView alloc] initWithFrame:CGRectMake(0.0, 0.0, _storeTableView.bounds.size.width, 50) title:[[myDict allKeys] objectAtIndex:indexPath.row]] autorelease];
return cell;
} else if (tableView==_searchTableView) {
cell.textLabel.text = [_resultArray objectAtIndex:indexPath.row];
return cell;
} else {
return cell;
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
HouraStoreHeaderModel *headerModel = [self.headerInfoArray objectAtIndex:section];
NSInteger height = 59.0 + ([headerModel.openedSubHeaders count]-1)*41.0;
return height;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if(tableView==_storeTableView){
HouraStoreHeaderModel *headerModel = [self.headerInfoArray objectAtIndex:indexPath.section];
NSDictionary *myDict = _storeDataDict;
for (NSInteger i = 0; i < [headerModel.openedSubHeaders count]; i++) {
myDict = [myDict objectForKey:[headerModel.openedSubHeaders objectAtIndex:i]];
}
if ([[myDict objectForKey:[[myDict allKeys] objectAtIndex:indexPath.row]] isKindOfClass:[NSDictionary class]]) {
[self cellOpened:indexPath];
} else {
[_activityIndicatorView startAnimating];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(_listProductsFoundedFinished:)
name:HouraSearchProductsDone
object:nil];
NSString *searchString = [[myDict allKeys] objectAtIndex:indexPath.row];
searchString = [searchString stringByReplacingOccurrencesOfString:@"\"" withString:@"\\u0022"];
[_singleton.util beginSearchProducts:searchString context:@"2"];
}
} else if(tableView==_searchTableView){
_searchBar.text = [_resultArray objectAtIndex:indexPath.row];
[_searchBar resignFirstResponder];
[_activityIndicatorView startAnimating];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(_listProductsFoundedFinished:)
name:HouraSearchProductsDone
object:nil];
[_singleton.util beginSearchProducts:_searchBar.text context:@"2"];
}
}
-(void)headerView:(HouraStoreHeaderView*)headerView headerOpened:(NSInteger)headerOpened {
if (self.openSectionIndex!=NSNotFound) {
[self closeAllHeaders];
}
//[self closeAllHeaders];
HouraStoreHeaderModel *headerModel =nil;
headerModel = [self.headerInfoArray objectAtIndex:headerOpened];
headerModel.open = YES;
headerModel.headerView.disclosureButton.selected = YES;
NSDictionary *myDict = _storeDataDict;
for (NSInteger i = 0; i < [headerModel.openedSubHeaders count]; i++) {
myDict = [myDict objectForKey:[headerModel.openedSubHeaders objectAtIndex:i]];
}
NSInteger countOfRowsToInsert = [[myDict allKeys] count];
NSMutableArray *indexPathsToInsert = [[NSMutableArray alloc] init];
for (NSInteger i = 0; i < countOfRowsToInsert; i++) {
[indexPathsToInsert addObject:[NSIndexPath indexPathForRow:i inSection:headerOpened]];
}
NSMutableArray *indexPathsToDelete = [[NSMutableArray alloc] init];
NSInteger previousOpenSectionIndex = self.openSectionIndex;
if (previousOpenSectionIndex != NSNotFound) {
HouraStoreHeaderModel *previousHeaderModel = [self.headerInfoArray objectAtIndex:previousOpenSectionIndex];
previousHeaderModel.open = NO;
previousHeaderModel.headerView.disclosureButton.selected = NO;
[previousHeaderModel.headerView toggleOpenWithUserAction:NO];
NSInteger countOfRowsToDelete = [[[_storeDataDict objectForKey:previousHeaderModel.shelf ] allKeys] count];
for (NSInteger i = 0; i < countOfRowsToDelete; i++) {
[indexPathsToDelete addObject:[NSIndexPath indexPathForRow:i inSection:previousOpenSectionIndex]];
}
}
UITableViewRowAnimation insertAnimation;
UITableViewRowAnimation deleteAnimation;
if (previousOpenSectionIndex == NSNotFound || headerOpened < previousOpenSectionIndex) {
insertAnimation = UITableViewRowAnimationTop;
deleteAnimation = UITableViewRowAnimationBottom;
} else {
insertAnimation = UITableViewRowAnimationBottom;
deleteAnimation = UITableViewRowAnimationTop;
}
[_storeTableView beginUpdates];
[_storeTableView deleteRowsAtIndexPaths:indexPathsToDelete withRowAnimation:deleteAnimation];
[_storeTableView insertRowsAtIndexPaths:indexPathsToInsert withRowAnimation:insertAnimation];
[_storeTableView endUpdates];
self.openSectionIndex = headerOpened;
}
-(void)headerView:(HouraStoreHeaderView*)headerView headerClosed:(NSInteger)headerClosed {
HouraStoreHeaderModel *headerModel = [self.headerInfoArray objectAtIndex:headerClosed];
headerModel.open = NO;
headerModel.headerView.disclosureButton.selected = NO;
[headerModel cleanOpenedSubHeaders];
[self.headerInfoArray replaceObjectAtIndex:headerClosed withObject:headerModel];
NSInteger countOfRowsToDelete = [_storeTableView numberOfRowsInSection:headerClosed];
if (countOfRowsToDelete > 0) {
NSMutableArray *indexPathsToDelete = [[NSMutableArray alloc] init];
for (NSInteger i = 0; i < countOfRowsToDelete; i++) {
[indexPathsToDelete addObject:[NSIndexPath indexPathForRow:i inSection:headerClosed]];
}
[_storeTableView deleteRowsAtIndexPaths:indexPathsToDelete withRowAnimation:UITableViewRowAnimationTop];
}
self.openSectionIndex = NSNotFound;
}
-(void)cellOpened:(NSIndexPath*)indexPath {
HouraStoreHeaderModel *headerModel = [self.headerInfoArray objectAtIndex:indexPath.section];
[self headerView:headerModel.headerView headerClosed:indexPath.section];
[headerModel addOpenedSubHeaders:[[[_storeDataDict objectForKey:headerModel.shelf] allKeys] objectAtIndex:indexPath.row]];
[self.headerInfoArray replaceObjectAtIndex:indexPath.section withObject:headerModel];
headerModel = [self.headerInfoArray objectAtIndex:indexPath.section];
[self headerView:headerModel.headerView headerOpened:indexPath.section];
}
-(void)closeAllHeaders {
for (NSInteger i = 0; i < [self.headerInfoArray count]; i++) {
HouraStoreHeaderModel *headerModel = [self.headerInfoArray objectAtIndex:i];
[self headerView:headerModel.headerView headerClosed:i];
}
}
What I'd like to do is, when I click a row, the section header update so it contains a new button with the row text. Then I dismiss the row and reload new datas in the section rows. I managed to handle the rows perfectly. But I can't find a way to get this header view updated.
Thx for any idea.
Best Answer
You just change it directly. I created an instance variable in the header file for a label that I will put in the header's view I'll create:
And in my tableView when they select a row I call a function that simply changes the text on the label:
That results in the following:
If you have any questions let me know! This is just a quick example to demonstrate it, but you may want to customize the view in a different way altogether. This should at least solve your problem and give you a starting point to work from.