im using core data i have an entity called questions whenever i add my question to my table i want them to display the number of the question (kind of like auto increment thing)
can anyone pls help me out
thanks
here is my code if its relevant
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.questionArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell"];
// Configure the cell...
questionObject = [self.questionArray objectAtIndex:indexPath.row];
cell.textLabel.text = questionObject.questionDescription;
return cell;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell"];
if (nil == cell) {
cell = ...; //create a cell instance if it wasn't found in reusable cache
}
// Configure the cell...
questionObject = [self.questionArray objectAtIndex:indexPath.row];
NSString *cellText = [NSString stringWithFormat:#"%d. %#", indexPath.row+1, questionObject.questionDescription];
cell.textLabel.text = cellText;
return cell;
}
Related
I'm currently creating a tableview with data from server. I have made it before, i copied over the code from the other files, but for some reason it's very strange. When i run the app, the tableview is empty and I found out that The cell.price.text is not updating, even though I hardcode it as #"123", cell.price.text is still showing null in NSLog.
I'm sure all these three method are called, because I put nslog in each of them
//TableView Setting
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
NSLog(#"Countdata %i",countdata);
return countdata;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"ShopTableViewCell";
ShopTableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[ShopTableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:CellIdentifier];
NSLog(#"hi");
}
// Configure the cell...
cell.price.text = [self.gprice objectAtIndex:[indexPath row]];
NSLog(#"Good,%#",[self.gprice objectAtIndex:[indexPath row]]);
NSLog(#"text,%#",cell.price.text);
return cell;
}
I have managed to make the TableView expandable. The problem is that when I start the app, it's always opened. I want it to be closed, and to be opened just when I hit the row.
What am I missing here? How can I set it to be open at start?
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 3;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 5;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
if (!indexPath.row)
{
// first row
cell.textLabel.text = #"Expandable"; // only top row showing
}
else
{
cell.textLabel.text = #"Some Detail";
cell.accessoryView = nil;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
return cell;
}
- (BOOL)tableView:(UITableView *)tableView canCollapseSection:(NSInteger)section
{
return YES;
}
You first create a regular table with some array of booleans that holds the state of each row (open/close).
Then, when you hit a first row in a section, I reload the table with new rows:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
//subject hitted
if (indexPath.row == 0)
{
// set relevant boolean here ,also , reload the table again with the new rows
collapsedRows[indexPath.section]= ! collapsedRows[indexPath.section];
[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:indexPath.section]withRowAnimation:UITableViewRowAnimationFade];
}
//sub subject hitted
else
{
}
}
I have made customCell for my UITableView. I am downloading data from server and showing on CustomCells.
The method of manipulating data is
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"CustomCellReuseID";
LeaderBoardCell *cell = [leaderBoardTable dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[LeaderBoardCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
GetScoreBoard *ob = [leaderBoardArray objectAtIndex:indexPath.row];
[[cell title] setText:ob.fullname];
[[cell discription] setText:ob.points];
return cell;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [leaderBoardArray count];
}
The CustomCell "LeaderBoardCell" is loading later, but before this I see simple cells which are default in UITableView.
Is is possible to load only CustomCell in TableVeiw?
I want to design a dynamic table which has 2 sections, first section has 4 cells and second one has 41 cells. I want to program these 2 sections separately but I can only modify one section. how can I modify each section separately. The codes that I wrote so far is like this:
{
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 2;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (section == 0)
return 4;
else
return 41;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Questions";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil) cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"Questions"];
cell.textLabel.text = [NSString stringWithFormat:#"Question %lu", (unsigned long)indexPath.row +1];
return cell;
}
}
The NSIndexPath has both a row property and a section property. From these two properties, you can tell which cell you are currently working on in
<(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
For example:
(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Questions";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil)
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"Questions"];
if (indexPath.section == 0)
{
cell.textLabel.text = [NSString stringWithFormat:#"1st Group - Question %d", indexPath.row + 1];
}
else
{
cell.textLabel.text = [NSString stringWithFormat:#"2nd Group - Question %d", indexPath.row + 1];
}
return cell;
}
If I call reloadRowsAtIndexPaths for the first cell of a section, with previous section empty and the one above not-empty, I get a strange animation glitch (even if I specify "UITableViewRowAnimationNone") where the reloaded cell slides down from the above section..
I tried to simplify the example as much as possible:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 3;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (section == 0)
return 1;
else if (section == 1)
return 0;
else if (section == 2)
return 3;
return 0;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell...
cell.textLabel.text = #"Text";
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSArray *editedCell = [[NSArray alloc] initWithObjects:indexPath, nil];
//[self.tableView beginUpdates];
[self.tableView reloadRowsAtIndexPaths:editedCell withRowAnimation:UITableViewRowAnimationNone];
//[self.tableView endUpdates];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
return #"Section";
}
Actually you can comment out the last method, but it gives a better understanding of the problem.
You can set values you want to the cell directly, not letting table to reload itself (and thus avoiding any unwanted animations). Also to make code clearer and avoid code duplication lets move cell setup to a separate method (so we'll be able to call it from different locations):
- (void) setupCell:(UITableViewCell*)cell forIndexPath:(NSIndexPath*)indexPath {
cell.textLabel.text = #"Text"; // Or any value depending on index path
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
[self setupCell:cell forIndexPath:indexPath];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
// create cell
// Configure the cell...
[self setupCell:cell forIndexPath:indexPath];
return cell;
}