My issue is similar what this guy had:
Add a last cell to UItableview
In fact I'm using the same method which got selected in that question, here's the code snippet:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [array count] + 1;
}
- (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 = UITableViewCellAccessoryDetailDisclosureButton;
}
// Configure the cell.
NSUInteger rowN = [indexPath row];
if (rowN == [array count]) {
cell.textLabel.text = [NSString stringWithFormat:#"Some Text"];
} else {
TFHppleElement* pCell = [array objectAtIndex:indexPath.row];
cell.textLabel.text = [NSString stringWithFormat:#"%#", [pCell content]];
}
return cell;
}
Now, I'm getting exception error: *** -[__NSArrayM objectAtIndex:]: index 6 beyond bounds [0 .. 5].
What could be the issue? From the error, it looks like that [array objectAtIndex:indexPath.row] is trying to access 6th index of the array which doesn't exist but why it is trying to access 6th index when I have the code in else condition?
Change this row:
NSUInteger rowN = [indexPath row];
to:
NSUInteger rowN = indexPath.row;
Or use just the indexPath.row instead of the rowN in the if condition
Related
I am getting data from json. It is working OK but the problem is that data is not showing in tableView.
I have checked the values that I assign to cell using NSLog but cell is not displaying any data.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
int count = [surveyList count];
NSLog(#"These are rows %d",count);
return [surveyList count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}
ObjectData *data = [surveyList objectAtIndex:indexPath.row];
NSString *testingClient = data.survey_title;
NSLog(testingClient);
NSString *cellText = testingClient;
return cell;
}
Are you not missing this?
[[cell textLabel] setText:testingClient];
You aren't assigning any text to the cell without it.
You should assign that text to label of cell.
cell.textLabel.text = testingClient;
I'm currently trying to implement a Table View on my iPhone app that grabs an array from one table view/class and using this array to populate a table in another seperate view. Here is the method I use that adds an exercise to an array if it is clicked/tapped:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
NSString *str = cell.textLabel.text;
NSUInteger *index = 0;
NSMutableArray *array = [[NSMutableArray alloc] init];
[array insertObject:str atIndex:index];
self.workout = array;
[array release];
}
Once the save button is pressed, this array will be stored in an array of workouts (arrays) that I want to be populated in another view. Am I taking the correct approach this?
Here is my cellForRowAtIndexPath method:
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSUInteger section = [indexPath section];
NSUInteger row = [indexPath row];
NSString *key = [keys objectAtIndex:section];
NSArray *nameSection = [names objectForKey:key];
static NSString *SectionsTableIdentifier = #"SectionsTableIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:
SectionsTableIdentifier ];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier: SectionsTableIdentifier ] autorelease];
}
cell.textLabel.text = [nameSection objectAtIndex:row];
return cell;
}
you probably do not want to re-initialize self.workout with a new array each time.
-(void) viewDidLoad
{
self.workout = [[NSMutableArray alloc] init];
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
NSString *str = cell.textLabel.text;
[self.workout insertObject:str atIndex:0];
}
I have a UITableView whose datasource is a NSMutableArray. The array consists of a set of objects. All the cells are displayed in proper order.
Now I want to know how to display a last cell always with some text alone which is not there in the datasource array.
I hope i am clear enough :)
EDIT :----------
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
// Return the number of rows in the section.
//+1 to add the last extra row
return [appDelegate.list count]+1;
}
// 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];
}
NSUInteger index=[indexPath row];
if(index ==([appDelegate.list count]+1)) {
cell.textLabel.text = [NSString stringWithFormat:#"extra cell"];
}else{
Item *i = (Item *) [appDelegate.list objectAtIndex:indexPath.row];
cell.textLabel.text = [NSString stringWithFormat:#"%# (%d %#)",i.iName, i.iQty,i.iUnit];
}
cell.accessoryType=UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
but i get the NSMutableArray out of bounds exception.
What could be wrong ?
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section
{
return [your_array count] + 1;
}
- (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];
if (row == [your_array count])
{
cell.textLabel.text = [NSString stringWithFormat:#"Some text"];
}
else
{
cell.textLabel.text = your array object text;
}
return cell;
}
Your problem is the value you are checking against index. The list has count objects indexed 0 to count - 1. So you must check against count and not count + 1. As it is now, the request for countth row is entering the else section. There is no object at count in the list array. So you are getting the error. This is the modification.
if(index == [appDelegate.list count] ) {
cell.textLabel.text = [NSString stringWithFormat:#"extra cell"];
}else{
Item *i = (Item *) [appDelegate.list objectAtIndex:indexPath.row];
cell.textLabel.text = [NSString stringWithFormat:#"%# (%d %#)",i.iName, i.iQty,i.iUnit];
}
in numberOfRowInSection return number of rows = your array count +1 then in Cell for cellForRowAtIndexPath check for indexPath.row if it is equla to your array count +1 then create cell that you want to add at last.
UITableView is crashing on scrolling . Here is the sample code..
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
NSLog(#"Total Count: %d",count);
return [ObjectArray count] ;
}
- (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] autorelease];
cell.textLabel.numberOfLines = 0;
cell.textLabel.font = [UIFont fontWithName:#"Arial" size:12.0];
cell.detailTextLabel.font = [UIFont fontWithName:#"Arial" size:10.0];
[cell.textLabel sizeToFit];
[cell setAccessoryType:UITableViewCellAccessoryDetailDisclosureButton];
}
// Configure the cell.
NSLog(#"Row Number %d", indexPath.row);
cell.textLabel.text = [ObjectArray name];
return cell;
}
In console I can see Total count = 22.
Row Number 0
Row NUmber 1
.
.
Row Number 21 (This row number will pull the last object from ObjectArray)
Now if I try to scroll it crashes...why? Can anyone help me with this ...
I don't really understand this line of code
cell.textLabel.text = [ObjectArray name];
If ObjectArray is a NSArray instance, then it would not respond to that selector. And anyway you probably want to return smth like
cell.textLabel.text = [ObjectArray objectAtIndex: [indexPath row]];
I have a table with 50 rows. I want to select particular rows with checkmark accessory but when i select some rows and scroll down the table then i see pre checked rows. I know that table cell are reused but i want to emit this problem what can i do about this?
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// return [array count];
return 50;
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
TableViewCell *cell = (TableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[TableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
cell.textLabel.text=[NSString stringWithFormat:#"%i",[indexPath row]];
return cell;
}
// Override to support row selection in the table view.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
if (cell.accessoryType == UITableViewCellAccessoryNone) {
cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
cell.accessoryType = UITableViewCellAccessoryNone;
}
You have to set cell.accessoryType in - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
The fact is that as you have a reuse identifier, when a new cell is requested, a cell with the identifier is copied. As you have set the checkmark in the latest cell, the checkmask is copied.
You have to store the state of each cell (ie in an array) to recreate the cell with the right value.
Something like that:
BOOL values[50]; //Not the best way, but easy for the example...
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
TableViewCell *cell = (TableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[TableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
cell.textLabel.text=[NSString stringWithFormat:#"%i",[indexPath row]];
if (value[indexPath.row]) {
cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
values[indexPath.row] = !value[indexPath.row];
if (value[indexPath.row]) {
cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
cell.accessoryType = UITableViewCellAccessoryNone;
}
}
You can do it with the help of array ,take one array and each array hold a dict do this condition in array
NSMutableArray *arr = [[NSMutableArray alloc]init];
for(int i=1; i<=50;i++)
{
NSmutableDictionary *dict = [[NSMutableDictionary alloc]init];
[dict setobject:[nsstring stringwithformat:#"%d",i] valueForkey:#"ID"];
[arr addobject:dict];
[dict release];
}
now rows is [arr count];
and put this check in cell appearance
NSMutabledict *dict1 = [arr objectatindex:indexpath.row];
if([[dict objectforkey:"Check"]==nil])
{
[dict setobject:[nsstring stringwithformate:#"1"] valueforkey:#"Check"];
}else
{
if([[dict objectforkey:"Check"] isequaltostring:#"1"]
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
else
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
}
now put below code in didselect methood
nsmutabledict *dict1 = [arr objectatindex:indexpath.row];
if([[dict objectforkey:"Check"] isequaltostring:#"1"]
{
[dict setobject:[nsstring stringwithformate:#"2"] valueforkey:#"Check"];
}
else
{
[dict setobject:[nsstring stringwithformate:#"1"] valueforkey:#"Check"];
}