I create a UITableView programmatically with different cells and sections that connects to the other views in storyboard like below picture:
My question is:
how can I connect these 3 cells to these different views ,would you please helping me
Thanks in advance!
Here is my code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *key = [[self sectionKeys] objectAtIndex:[indexPath section]];
NSArray *contents = [[self sectionContents] objectForKey:key];
NSString *contentForThisRow = [contents objectAtIndex:[indexPath row]];
static NSString *CellIdentifier = #"CellIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:CellIdentifier];
}
[[cell textLabel] setText:contentForThisRow];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
_selectedIndex = indexPath.row;
[self.tableView reloadData];
}
Edit:
When I use this method It just load the WorkTime view even if user select the absence cell,
Does any one knows why ?
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
_selectedIndex = indexPath.row;
[self.tableView reloadData];
//maybe you could use a switch/case here, to assign the correct string to the segue identifier.
switch (indexPath.row){
case 0:
[self performSegueWithIdentifier:#"test" sender:self];
break;
case 1:
[self performSegueWithIdentifier:#"set" sender:self];
break;
case 2:
[self performSegueWithIdentifier:#"get" sender:self];
break;
}
}
Your last method is the way you want to go, but by the looks of it, you need to be checking indexPath.section not indexPath.row
Related
I have created an iOS app with UITableView.UITableView by default loads 25 records. I am scrolling the tableview to get another 25 records.
How do I get another set of data?
Here is my code.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return timeList.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = #"Item";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell=[[UITableViewCell alloc]initWithStyle:
UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
NSDictionary *tmpDict = [timeList objectAtIndex:indexPath.row];
NSMutableString *text;
NSString *currentstatus;
text = [NSMutableString stringWithFormat:#"%#",[tmpDict objectForKeyedSubscript:startdate]];
currentstatus = [self statusString:[NSMutableString stringWithFormat:#"%#",[tmpDict objectForKeyedSubscript:status]]];
NSMutableString *detail;
detail = [NSMutableString stringWithFormat:#"User:%# , Hours:%# , Status: %# ",
[tmpDict objectForKey:username], [tmpDict objectForKey:hours], currentstatus];
cell.textLabel.text = text;
cell.detailTextLabel.text= detail;
cell.accessoryType =UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
NSDictionary *tmpDict = [timeList objectAtIndex:indexPath.row];
NSString * storyboardName=#"Main";
UIStoryboard *storyboard =[UIStoryboard storyboardWithName:storyboardName bundle:nil];
EditViewController *evc =[storyboard instantiateViewControllerWithIdentifier:#"EditViewController"];
evc.startday =[NSMutableString stringWithFormat:#"%#",[tmpDict objectForKeyedSubscript:startdate]];
evc.user_id = [NSMutableString stringWithFormat:#"%#",[tmpDict objectForKeyedSubscript:user_id]];
evc.tab =#"wktime";
[self presentViewController:evc animated:NO completion:Nil];
}
First you have check whether the tableview reached last cell or not. If it is reached then again you have to reload the next set of data.
Use the below code to check whether the tableview reached last cell or not.
-(void)tableView:(UITableView *)tableView willDisplayCell (UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
if(indexPath.row == timeList.count-1)
{
//Your code here
}
}
You can use delegate method of UISCrollView scrollViewDidEndScrolling to load more data and then you can refresh your tableView.
You can do it in a simple way. by adding below code in cellForRowAtIndexPath delegate method.
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row == timeList.count-1) {
NSLog(#"load more");
}
.....
return cell;
}
if condition will be executed at the end of tableview, there you can add your logic to load more data's.
I create table programmatically with different sections and rows, i create check box inside table with pictures as a box
I want to put limitation for this check box
would you please help me
Edit :
my question is how can I choosing just one check box- limitation of choice
and also how can I unselect a box and remove the checkmark
here is code for check box row
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *key = [[self sectionKeys] objectAtIndex:[indexPath section]];
NSArray *contents = [[self sectionContents] objectForKey:key];
NSString *contentForThisRow = [contents objectAtIndex:[indexPath row]];
if (indexPath.section != 2) {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
cell.textLabel.text =contentForThisRow;
return cell;
}
else {
CheckBoxAbsenceTableViewCell *cell = (CheckBoxAbsenceTableViewCell*)[tableView dequeueReusableCellWithIdentifier:#"CheckBoxAbsenceTableViewCell"];
cell.imageView.image=[UIImage imageNamed:#"emptycheck-box.png"];
cell.checkBox.image = image;
if(indexPath.row == 0){
cell.absenceCode.text =#"Red";
}
else if (indexPath.row == 1){
cell.absenceCode.text =#"Green";
}else if(indexPath.row == 2){
cell.absenceCode.text =#"Blue";
}
return cell;
}
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
CheckBoxAbsenceTableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];
selectedCell.checkBox.image =[UIImage imageNamed:#"checkmark.png"];
}
Thanks in advance!
The easy solution is to add a UIInteger _selectedIndex instance var to your view controller.
In viewDidLoad set it to -1 (non of the rows is selected)
Then when user select a cell, save the selected index and reload the tableView:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
_selectedIndex = indexPath.row;
[self.tableView reloadData];
}
Change the cellForRowAtIndexPath method so it will select only the selected cell:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *key = [[self sectionKeys] objectAtIndex:[indexPath section]];
NSArray *contents = [[self sectionContents] objectForKey:key];
NSString *contentForThisRow = [contents objectAtIndex:[indexPath row]];
if (indexPath.section != 2) {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
cell.textLabel.text =contentForThisRow;
return cell;
}
else {
CheckBoxAbsenceTableViewCell *cell = (CheckBoxAbsenceTableViewCell*)[tableView dequeueReusableCellWithIdentifier:#"CheckBoxAbsenceTableViewCell"];
if (indexPath.row == _selectedIndex) {
cell.checkBox.image =[UIImage imageNamed:#"checkmark.png"];
}
else {
cell.checkBox.image = [UIImage imageNamed:#"emptycheck-box.png"];;
}
if(indexPath.row == 0){
cell.absenceCode.text =#"Red";
}
else if (indexPath.row == 1){
cell.absenceCode.text =#"Green";
}else if(indexPath.row == 2){
cell.absenceCode.text =#"Blue";
}
return cell;
}
}
From a UI design perspective, you should be using the cell.accessoryType and the UITableViewCellAccessoryCheckmark accessory.
You need to keep track of the selected (i.e. checked) indexPath in your data model. Lets call this self.idxPathSelected.
This didSelectRowAtIndexPath will add checkmark to the selected row, and clear checkmark from the previously selected row:
- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:NO];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
cell.accessoryType = UITableViewCellAccessoryCheckmark;
if (self.idxPathSelected != nil)
{
cell = [tableView cellForRowAtIndexPath:self.idxPathSelected];
cell.accessoryType = UITableViewAccessoryNone;
}
self.idxPathSelected = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section];
}
and in your cellForRowAtIndexPath, something like this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
...
if ((self.idxPathSelected != nil) && ([self.idxPathSelected compare:indexPath] == NSOrderedSame))
cell.accessoryType = UITableViewCellAccessoryCheckmark;
else
cell.accessoryType = UITableViewCellAccessoryNone;
...
}
I have some problems with UITableView and sections/rows.
Iam parsing the section names, all row names and row count per section from a xml.
I have 3 NSMutableArrays:
nameArray (with all row names)
sectionArray (all section names)
secCountArray (row count per section)
For the cellForRowAtindexPath to work, do I have to return the rows for the displayed section?
The next step I would do is to build an 2d Array with sections and all rows for each section.
Does anyone knows any better solution?
Here comes the code:
// Customize the appearance of table view cells.
- (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];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
// Set up the cell
int xmlEntryIndex = [indexPath indexAtPosition: [indexPath length] -1];
//???
cell.textLabel.text = [[theParser.nameArray objectAtIndex: 1]valueForKey:#"name"];
return cell;
}
Thanks!
You could have one _section array and one _row array for the whole tableview.
like your view controller.h file declare array
NSMutableArray *arrSection, *arrRow;
then your view controller.m file paste below code..
- (void)viewDidLoad
{
[super viewDidLoad];
arrSection = [[NSMutableArray alloc] initWithObjects:#"section1", #"section2", #"section3", #"section4", nil];
arrRow = [[NSMutableArray alloc] init];
[arrSection enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
NSMutableArray *tempSection = [[NSMutableArray alloc] init];
[arrSection enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
[tempSection addObject:[NSString stringWithFormat:#"row%d", idx]];
}];
[arrRow addObject:tempSection];
}];
NSLog(#"arrRow:%#", arrRow);
}
#pragma mark - Table view data source
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [arrSection count];
}
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
return [arrSection objectAtIndex:section];
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [[arrRow objectAtIndex:section] count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:nil];
if(!cell)
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:nil];
cell.textLabel.text = [[arrRow objectAtIndex:[indexPath section]] objectAtIndex:[indexPath row]];
return cell;
}
This method does not involve defining and creating your own custom view. In iOS 6 and up, you can easily change the background color and the text color by defining the
- (void)tableView:(UITableView *)tableView
willDisplayHeaderView:(UIView *)view
forSection:(NSInteger)section
delegate method.
For example:
- (void)tableView:(UITableView *)tableView willDisplayHeaderView:(UIView *)view forSection:(NSInteger)section
{
// Background color
view.tintColor = [UIColor blackColor];
// Text Color
UITableViewHeaderFooterView *header = (UITableViewHeaderFooterView *)view;
[header.textLabel setTextColor:[UIColor whiteColor]];
// Another way to set the background color
// Note: does not preserve gradient effect of original header
// header.contentView.backgroundColor = [UIColor blackColor];
}
you can see display dynamic section and row
May be helpful for you..
You could have one array for the whole table view. The array contains arrays for every section. Then the cellForRowAtIndexPath could look like:
- (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];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
[[cell textLabel] setText: [[[myArray objectAtIndex: indexPath.section] objectAtIndex: indexPath.row]];
return cell;
}
I hope this help you in your problem.
Edit: With the modern Objective-C and ARC I would write this as
- (void)viewDidLoad {
....
[self.tableView registerClass:[MyCellClass class] forCellReuseIdentifier:kMyCellIdentifier];
}
...
- (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath {
MyCellClass *cell = [tableView dequeueReusableCellWithIdentifier:kMyCellIdentifier forIndexPath:indexPath];
cell.textLabel.text = myArray[indexPath.section][indexPath.row];
return cell;
}
I need to save selected items for my UITableView in the NSMutableDictionary for iplementing checkboxes. So I do the following:
NSMutableDictionary * selDict;// - instance variable
...
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if ([selDict objectForKey:indexPath])
[selDict setObject:[NSNumber numberWithBool:FALSE] forKey:indexPath];
else
[selDict setObject:[NSNumber numberWithBool:TRUE] forKey:indexPath];
[[self tableView]reloadData];
}
- (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];
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
}
if ([selDict objectForKey:indexPath])
cell.accessoryType = UITableViewCellAccessoryCheckmark;
else
cell.accessoryType = UITableViewCellAccessoryNone;
...
return cell;
}
But it is only sets the items checked and does't work further.
You might want to change
if ([selDict objectForKey:indexPath])
to
if ([[selDict objectForKey:indexPath] boolValue])
What you are doing now is checking whether the object exists or not. It will work once when it is nil but not after that.
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