Okay so here's the issue...
I have a UITableView that has 3 sections and each section has a different amount of cells.
How would I insert an array(s) of labels that would go in the appropriate section and table..?
I can't figure this one out.
Solved:
- (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];
}
NSString *labelText;
switch (indexPath.section) {
case 0:
labelText = [_section1 objectAtIndex:[indexPath row]];
break;
case 1:
labelText = [_section2 objectAtIndex:[indexPath row]];
break;
case 2:
labelText = [_section3 objectAtIndex:[indexPath row]];
break;
}
cell.textLabel.text = labelText;
return cell;
}
Related
I have an array of names that I'm showing via tableview. You can select up to a total of 3 names, and you cannot re-select the same names. To do this I implemented the following code in cellForRowAtIndexPath:. When I run the code the names come up fine, but there are multiple red cells with names that I did not select.
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"TableCell";
UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Configure the cell...
NSString *sectionTitle = [nameSectionTitles objectAtIndex:indexPath.section];
NSArray *sectionNames = [names objectForKey:sectionTitle];
NSString *name = [sectionNames objectAtIndex:indexPath.row];
cell.textLabel.text = name;
if ([name isEqualToString: self.name1] || [name isEqualToString: self.name2] || [name isEqualToString: self.name3]) {
[cell setUserInteractionEnabled:NO];
cell.backgroundColor = [UIColor redColor];
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
Reading a similar problem here, they were saying that it's because the cells are being reused - but if this were true, how is the tableview still displaying the correct names in the correct position?
I tried to simplify the code into this, and still to no avail, there were multiple red cells.
myIP = [NSIndexPath indexPathForRow:0 inSection:0];
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"TableCell";
UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Configure the cell...
NSString *sectionTitle = [nameSectionTitles objectAtIndex:indexPath.section];
NSArray *sectionNames = [names objectForKey:sectionTitle];
NSString *name = [sectionNames objectAtIndex:indexPath.row];
cell.textLabel.text = name;
if (indexPath == myIP) {
cell.backgroundColor = [UIColor redColor];
}
return cell;
}
I can post a screenshot if needed. Note: The intended names were correctly labeled with red.
The issue is happening due to cell re-using. When a cell with red background is re-used it'll still be in red background, you are not re-setting it anywhere in your code. You need to put a else case to your if condition used in cellForRowAtIndexPath: method.
if ([name isEqualToString: self.name1] || [name isEqualToString: self.name2] || [name isEqualToString: self.name3])
{
[cell setUserInteractionEnabled:NO];
cell.backgroundColor = [UIColor redColor];
cell.accessoryType = UITableViewCellAccessoryNone;
}
else
{
[cell setUserInteractionEnabled:YES];
cell.backgroundColor = [UIColor clearColor];
// Other stuffs
}
We are using an uitableview and allow users to delete uitableviewcells, but a strange bug occurs, where two delete buttons appear.
Has anyone seen this before or have any ideas how to resolve this issue?
Thank you for your help and time.
Regards
Jing Jing Tao
UPDATE 1
Code for my cell at index for row
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
//cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping;
cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping;
//cell.detailTextLabel.lineBreakMode = NSLineBreakByWordWrapping;
cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping;
cell.textLabel.numberOfLines = 0;
cell.detailTextLabel.numberOfLines = 0;
}
// Configure the cell...
[self configureCell:cell atIndexPath:indexPath];
return cell;
}
UPDATE 2
- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath
{
//Sections logic
Model *info;
switch ([indexPath section])
{
case 0:
info = [self.bapiArray objectAtIndex:[indexPath row]];
break;
case 1:
info = [self.tablesArray objectAtIndex:[indexPath row]];
break;
case 2:
info = [self.tcodesArray objectAtIndex:[indexPath row]];
break;
default:
break;
}
cell.textLabel.text = info.subsection;
cell.detailTextLabel.text = info.text;
if(!(info.program == (id)[NSNull null] || info.program.length == 0))
{
cell.detailTextLabel.text = [NSString stringWithFormat:#"%# Program:%#", info.text,info.program];
}
}
how to display a number from 1 to array count in a table row .
am using following code.
- (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];
// NSInteger WeekList=[WeekArry count];
}
NSInteger row = indexPath.row;
cell.textLabel.text=[NSString stringWithFormat:#"Week %ld",(long)row];
NSLog(#"row%ld",(long)indexPath.row);
// Configure the cell...
return cell;
}
if (row == array.count) {
cell.textLabel.text=[NSString stringWithFormat:#"Week %ld",(long)row];
}else{
cell.textLabel.text=[NSString stringWithFormat:#"Week %ld",(long)row + 1];
}
I assign some custom view to UITableViewCell.accessoryView， but if I scroll the tableView crazy, some accessoryView will disappear in iOS 7, and if I touch the cell, it's accessoryView can appear, I don't know why, because it's correct in iOS 6. This is my code, someone can help me?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.textLabel.text = [NSString stringWithFormat:#"CELL %d", (int)indexPath.row+1];
NSDictionary * dict = [_dataSource objectAtIndex:indexPath.row];
if ([dict objectForKey:#"switch"])
{
cell.accessoryView = [dict objectForKey:#"switch"];
}
else
{
cell.accessoryView = nil;
}
return cell;
}
When we use ReusableCellWithIdentifier in table view it reuse cells in table, you set cell.accessoryView = nil; it's remove accessory view for all cells in table view with same CellIdentifier try this code, it's solve your problem :
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
NSDictionary * dict = [_dataSource objectAtIndex:indexPath.row];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
cell.accessoryView = [dict objectForKey:#"switch"];
}
cell.textLabel.text = [NSString stringWithFormat:#"CELL %d", (int)indexPath.row+1];
if ([dict objectForKey:#"switch"])
{
cell.accessoryView.hidden=NO;
}
else
{
cell.accessoryView.hidden=YES;
}
return cell;
}
I am new to UITableViews, and I dont know very much about this topic.
I have two buttons in the same View, but not in the Table, for control the switch between the UITableViewCells, when one button is pressed then set a boolean for load the specific Cell.
If you click the button 1 then it shows the table with the CellType1.
If you click the button 2 then it shows the table with the CellType2.
My goal is use the same Table for this. But I dont know where to start.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"SimpleTableItem";
if (clickButton1 == true)
{
clickButton1 *cell = (clickButton1*)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
//cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:#"CellType1" owner:self options:nil];
cell = [nib objectAtIndex:0];
}
cell.name.text = #"Trial";
return cell;
}
else if (clickButton2 == true)
{
clickButton2 *cell = (clickButton2*)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
//cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:#"CellType2" owner:self options:nil];
cell = [nib objectAtIndex:0];
}
//cell.name.text = #"Trial";
return cell;
} else
I think that this code is not the best. But I am lost at this point.
Thanks in advance!
using a tutorial example like this...
//3</pre>
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [self.tweetsArray count];
}
//4
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
//5
static NSString *cellIdentifier = #"SettingsCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
//6
NSString *tweet = [self.tweetsArray objectAtIndex:indexPath.row];
//7
[cell.textLabel setText:tweet];
[cell.detailTextLabel setText:#"via Codigator"];
return cell;
}
if you have two arrays for items such as self.tweetArray1 and self.tweetArray2 you could change this code to
//3</pre>
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
int i = buttonNumberClicked;
return [self.tweetsArray[i] count];
}
//4
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath {
//5
int i = buttonNumberClicked;
static NSString *cellIdentifier = #"SettingsCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
//6
NSString *tweet = [self.tweetsArray[i] objectAtIndex:indexPath.row];
//7
[cell.textLabel setText:tweet];
[cell.detailTextLabel setText:#"via Codigator"];
return cell;
}
and set up ibactions for your buttons to change the variable/int buttonNumberClicked to 1 or 2 depending on which was pressed and [tableView reloadData]; inside ibaction as well, hope this helps.