here is the scene, i want to use switch method in this code if someone knows, will be appreciated
there is not a big logic but someone may also describe how it will work in switch statement
- (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.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
if (indexPath.section == 0)
{
Preface *preface_access = [preface objectAtIndex:indexPath.row];
cell.textLabel.text = preface_access.preface_title;
}
else if (indexPath.section == 1)
{
Chapters * chapter_access = [chapters objectAtIndex:indexPath.row];
cell.textLabel.text = chapter_access.chapter_title;
}
else
{
Index * index_access = [index objectAtIndex:indexPath.row];
cell.textLabel.text = index_access.index_title;
}
return cell;
}
thanks in advance
i tried this one instead the above
- (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.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
switch (indexPath.section) {
case 0:
{
Preface *preface_access = [preface objectAtIndex:indexPath.row];
cell.textLabel.text = preface_access.preface_title;
break;
}
case 1:
{
Chapters * chapter_access = [chapters objectAtIndex:indexPath.row];
cell.textLabel.text = chapter_access.chapter_title;
}
case 2:
{
Index * index_access = [index objectAtIndex:indexPath.row];
cell.textLabel.text = index_access.index_title;
}
return cell;
}
the error comes here in this method Expected ';' after the expression
in **tableview ;**
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
Please try this snippet (Untested though):
- (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.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
switch (indexPath.section)
{
case 0:{
Preface *preface_access = [preface objectAtIndex:indexPath.row];
cell.textLabel.text = preface_access.preface_title;
return cell;
}
case 1:{
Chapters * chapter_access = [chapters objectAtIndex:indexPath.row];
cell.textLabel.text = chapter_access.chapter_title;
return cell;
}
case 2:{
Index * index_access = [index objectAtIndex:indexPath.row];
cell.textLabel.text = index_access.index_title;
return cell;
}
default:
return cell;
}
}
sel=indexPath.section;
switch(sel)
{
case 0:
Preface *preface_access = [preface objectAtIndex:indexPath.row];
cell.textLabel.text = preface_access.preface_title;
break;
case 1:
Chapters * chapter_access = [chapters objectAtIndex:indexPath.row];
cell.textLabel.text = chapter_access.chapter_title;
break;
default:
Index * index_access = [index objectAtIndex:indexPath.row];
cell.textLabel.text = index_access.index_title;
break;
}
Do you mean this?
Related
I am trying to create tableview with tableviewcell and whenever user select the tableviewcell It should apply checkmark. My tableview and tableview cell everything I have created by iOS storyboard. Please help step by step how to solve my issue.
My Source:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *cellIdentifier = #"cellID";
myTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[myTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
NSString *stringForCell;
if (indexPath.section == 0) {
stringForCell= [myData objectAtIndex:indexPath.row];
}
else if (indexPath.section == 1){
stringForCell= [myData objectAtIndex:indexPath.row+ [myData count]];
}
[cell.sec_Label setText:stringForCell];
return cell;
}
You can do this way,first thing declare the variable's in header files
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *cellIdentifier = #"cellID";
myTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[myTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.accessoryType = UITableViewCellAccessoryCheckmark;
cell.tintColor = [UIColor blackColor];
NSString *stringForCell; // Mention in header file
if (indexPath.section == 0) {
stringForCell= [myData objectAtIndex:indexPath.row];
}
else if (indexPath.section == 1){
stringForCell= [myData objectAtIndex:indexPath.row+ [myData count]];
}
[cell.sec_Label setText:stringForCell];
return cell;
}
write this in your tableview delegate function
- (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath
{
UITableViewCell* cell ....//some creation
cell.accessoryType=UITableViewCellAccessoryCheckmark;
//cell.accessView don't set this, if set, use custom view. ignore accessoryType
return cell;
}
In my cellForRow code I have the following and am getting an error saying nothing is being returned. What have I done wrong? Thanks.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell* cell = [tableView cellForRowAtIndexPath:indexPath];
if([self.checkedIndexPath isEqual:indexPath])
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
This is an endless loop: UITableViewCell* cell = [tableView cellForRowAtIndexPath:indexPath];
This should be:
static NSString *reuseIdentifier = #"some_identifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseIdentifier];
if(cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentifier] autorelease]
}
Your cellForRowAtIndexPath will look something like this (for the most Basic Table View)
- (UITableViewCell *) tableView :(UITableView *) tableView cellForRowAtIndexPath :(NSIndexPath *) indexPath
{
static NSString *SimpleTableIdentifier = #"SimpleTableIdentifier ";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:SimpleTableIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:SimpleTableIdentifier] autorelease];
}
NSUInteger row = [indexPath row];
cell.textLabel.text = [listData objectAtIndex :row];
cell.textLabel.font = [UIFont boldSystemFontOfSize:50];
return cell;
}
I m parsing json data and assigning it in my table view cell.where in the first row of tableview cell .i m assigning a static data(green text).if i scroll my tableview the data assigned in first table view cell is getting overlaped in my 6th and 7th tableview cell.below is the screen shotand the code.could u guys help me out
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];
}
if(indexPath.row == 0)
{
cell.textLabel.text=#"Pollenprognosen";
cell.textLabel.textColor=[UIColor greenColor];
cell.detailTextLabel.text=#"se dagens pollenprognos";
cell.detailTextLabel.font=[UIFont systemFontOfSize:([UIFont systemFontSize]-2)];
return cell;
}
else
{
cell.accessoryType=UITableViewCellAccessoryDisclosureIndicator;
cell.textLabel.text=[story objectAtIndex:indexPath.row];
return cell;
}
}
I think it's because the cell is reused. Try this code instead:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];
}
if(indexPath.row == 0)
{
cell.textLabel.text=#"Pollenprognosen";
cell.textLabel.textColor=[UIColor greenColor];
cell.detailTextLabel.text=#"se dagens pollenprognos";
cell.detailTextLabel.font=[UIFont systemFontOfSize:([UIFont systemFontSize]-2)];
cell.accessoryType=UITableViewCellAccessoryNone;
return cell;
}
else
{
cell.textLabel.text=[story objectAtIndex:indexPath.row];
cell.textLabel.textColor=[UIColor blackColor];
cell.detailTextLabel.text=nil;
cell.accessoryType=UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
}
Just make the else part as follows.
else
{
cell.accessoryType=UITableViewCellAccessoryDisclosureIndicator;
cell.textLabel.text=[NSString stringWithFormat:#"Cell %d",indexPath.row];
cell.textLabel.textColor=[UIColor blackColor];
cell.detailTextLabel.text=#"";
return cell;
}
when i build and analyze, i am told that cell never gets a value...which seems false by my logic, but then the app crashes trying to load the table. so...why come?
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *Cell1Identifier = #"Cell1";
static NSString *Cell2Identifier = #"Cell2";
static NSString *Cell3Identifier = #"Cell3";
UITableViewCell *cell;
if ([indexPath section] == 0) {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:Cell1Identifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue2
reuseIdentifier:Cell1Identifier] autorelease];
}
}
else if ([indexPath section] == 1) {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:Cell3Identifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:Cell3Identifier] autorelease];
}
}
else {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:Cell2Identifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:Cell2Identifier] autorelease];
}
}
// Configure the cell...
[self configureCell:cell
atIndexPath:indexPath];
return cell;
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *Cell1Identifier = #"Cell1";
static NSString *Cell2Identifier = #"Cell2";
static NSString *Cell3Identifier = #"Cell3";
NSString *identityString = #"";
switch ([indexPath section]) {
case 0: {
identityString = Cell1Identifier;
break;
}
case 1: {
identityString = Cell3Identifier;
break;
}
case 2: {
identityString = Cell2Identifier;
break;
}
default:
break;
}
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identityString];
if ([indexPath section] == 0) {
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue2
reuseIdentifier:Cell1Identifier] autorelease];
}
}
else if ([indexPath section] == 1) {
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:Cell3Identifier] autorelease];
}
}
else {
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:Cell2Identifier] autorelease];
}
}
// Configure the cell...
[self configureCell:cell
atIndexPath:indexPath];
return cell;
}
I'm making a checklist program using UITableView and I managed to implement everything up to selection and making a checkmark appear. However, when I scroll away from the cells. The checkmark disappears.
I have the following code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"CellIdentifier";
// Dequeue or create a cell of the appropriate type.
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Configure the cell.
if(tableView == Table1){
switch(indexPath.section){
case 0:
cell.textLabel.text =[array1 objectAtIndex:indexPath.row];
break;
case 1:
cell.textLabel.text = [array2 objectAtIndex:indexPath.row];
break;
case 2:
cell.textLabel.text = [array3 objectAtIndex:indexPath.row];
break;
}
//cell.textLabel.text = [NSString stringWithFormat:#"Row %d", indexPath.row];
}
//if([indexPath compare:[selectedArray objectAtIndex:i]] == NSOrderedSame){
if([selectedArray containsObject:cell]){
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}else{
cell.accessoryType = UITableViewCellAccessoryNone;
}
//}
if(tableView == sauceTable){
cell.textLabel.text = [array4 objectAtIndex:indexPath.row];
}
return cell;}
And:
- (void)tableView:(UITableView *)aTableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *c= [aTableView cellForRowAtIndexPath: indexPath];
c.accessoryType = UITableViewCellAccessoryCheckmark;
[selectedArray addObject: c];
}
Any ideas?
Solved. Used NSIndexPath instead of UITableViewCell for the selectionArray