I'm trying to retrieve the textfield data from custom cell after tap button which is placed in last cell of index, that means my table have a submit button to retrieve the data from custom cell, for that reason I placed my button in xib and loaded after my array count, for that I written code like this
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return [[dic_demo objectForKey:#"Demo"] count]+1;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSInteger lastSectionIndex = [tableView numberOfSections] - 1;
NSInteger lastRowIndex = [tableView numberOfRowsInSection:lastSectionIndex] - 1;
NSIndexPath *pathToLastRow = [NSIndexPath indexPathForRow:lastRowIndex inSection:lastSectionIndex];
if (indexPath==pathToLastRow)
{
// for submit button through xib
}
else
{
normal custom cell for textfields
}
}
to retreive the data i written code like this
[mutarr_txt_TCelltext removeAllObjects];
for (int i =0; i<[[dic_demo objectForKey:#"Demo"] count]; i++) {
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0];
CustomTableViewCell *cell = (CustomTableViewCell *)[self.tbl_SBeneficiaries cellForRowAtIndexPath:indexPath];
for(UIView *view in [cell.contentView subviews])
{
if([view isKindOfClass:[UITextField class]])
{
UITextField *textField = (UITextField *)view;
NSLog(#"%#",textField.text);
NSString *str_txt=[NSString stringWithFormat:#"%#",textField.text];
NSLog(#"First text is %lu",(unsigned long)[str_txt length]);
if ([str_txt length]>1) {
[mutarr_txt_TCelltext addObject:str_txt];
}
}
}}
but my problem is not getting first indexpath tetxtfield data & remaining textfield data is retreving. Could anyone help on this,Please find my screen shots
Related
In my UITableView "tableview" I added checkboxes in each row using UITableView default functionality.
- (void)viewDidLoad {
[tableview setEditing:YES animated:YES];
}
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 3;
}
I can select only Multiple checkboxes.But I want to select all the checkboxes using a button click.I can use didSelectRowAtIndexPath to loop through all the rows and get the contents but the checkboxes stays unchecked.
- (IBAction)selectallbutton:(id)sender {
NSInteger nRows=[arr count];
for(int i=0;i<nRows;i++){
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0];
[self tableView:tableview didSelectRowAtIndexPath:indexPath];
}
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"%#",[arr objectAtIndex:indexPath.row]);
}
Is it possible to check them all using this approach or should I try another way?
try this,
- (IBAction)selectallbutton:(id)sender {
NSInteger nRows=[arr count];
for(int i=0;i<nRows;i++){
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0];
UITableViewCell *cell = [tableview cellForRowAtIndexPath:indexPath];
[cell setSelected:YES animated:NO]; //you can change animated:YES if needed
}
}
I have a custom UITableView with UITextFields inside. In cellForRow... I made the textFields delegate to self. (In my main VC class.) The way I get the text from the textField is at textFieldDidEndEditing, and I add it to a mutableArray.
I then have different cell ids that get added when a button gets selected:
- (IBAction)addRow:(id)sender
{
NSInteger row = [self.rowArray cound];
[self.rowArray insertObject:#"anotherCell" atIndex:row];
NSIndexPath *indexPath = [NSindexPath indexPathForRow:row inSection:0];
[self.myTableView insertRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}
(There is a textField in that cellID and I set the delegate to self.)
In textFieldDidEndEditing, I made an NSLog of textField.text, and when that method gets called from a textField that was there initially, it works as expected.
But when textFieldDidEndEditing gets called from the textField that's in the cell of anotherCell (the added cell), then the whole simulator freezes.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *cellID = [self.rowArray objectAtIndex:[indexPath row]];
customCell *cell = [tableView dequeuereusablecellwithidentifier:cellID forIndexPath:indexPath];
cell.name.delegate = self; // From cell that is initially there
cell.phoneNumber.delegate = self; // From the added cell
return cell;
}
(If this is confusing, or if you need more code, just let me know in the comments. Thanks)
Edit
- (void)textFieldDidEndEditing:(UITextField *)textField
{
if (textField.tag <= 9)
{
NSLog(#"%#", textField.text); // This works
}
UIView *superview = textField.superview;
while (![superview isMemberOfClass:[UITableViewCell class]]) {
superview = superview.superview;
}
CustomCellClass *cell = (CustomCellClass *)superview;
NSIndexPath *indexPath = [self.myTableView indexPathForCell:cell];
if (textField.tag >= 12)
{
if ([self.inputArray count] > indexPath.row) // So I won't get the error message of [__NSArrayM objectAtIndex:]: index 1 beyond bounds for empty array'
{
for (NSUInteger i = [self.inputArray count]; i < indexPath.row; i++) {
[self.inputArray insertObject:#"" atIndex:i];
NSLog(#"%lu", (unsigned long)i);
}
}
NSLog(#"%#", self.inputArray);
}
}
Your code is stuck in an infinite loop here:
while (![superview isMemberOfClass:[UITableViewCell class]]) {
superview = superview.superview;
}
because isMemberOfClass will return true only if the superview class is UITableViewCell, but NOT if it is a subclass of UITableViewCell. If you change isMemberOfClass to isKindOfClass, it should work. Check the Apple docs here.
I have an array of user displayed in a table view when pushing the send button the cell dosen't selected right object. It can be quit random:). How do i make send the object displayed on the selected cell?
This is how i send my message
- (void)sendMessage:(id)sender {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
PFObject *object = [self.objects objectAtIndex:indexPath.row];
self.SendToUsername = [object objectForKey:#"username"];
self.SendToName = [object objectForKey:#"name"];
}
And this is my cell, where the send button is located.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object
{
static NSString *simpleTableIdentifier = #"LampCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
UIButton *sendbutton = (UIButton*) [cell viewWithTag:105];
[sendbutton addTarget:self action:#selector(sendMessage:) forControlEvents:UIControlEventTouchUpInside];
return cell;
}
It is quite easy. Tableview itself provide method.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
variable=[array objectAtIndex:indexPath.row];
}
In "Variable" you have value which is selected. If your array is accessible in whole controller then you can save "indexPath.row" and use on click event of send button to fetch selected record.
tableView indexPathForSelectedCell will not give you the index path you are expecting in the action method of a button that is in a cell. The cell wasn't selected - you touched the button.
To get the index path of the row for that button, there are a couple of different methods.
My preferred method is to traverse the view hierarchy to find the cell that contains the button, and use that to get the index path. See this question for more info:
Button in custom cell in dynamic table: how to know which row in action method?
My answer from this question is as follows. You could add these two methods to a category on UITableViewController, or you could just add them to your view controller, if you like.
- (NSIndexPath *)indexPathForCellSubview:(UIView *)subview
{
if (subview) {
UITableViewCell *cell = [self tableViewCellForCellSubview:subview];
return [self.tableView indexPathForCell:cell];
}
return nil;
}
- (UITableViewCell *)tableViewCellForCellSubview:(UIView *)subview
{
if (subview) {
UIView *superView = subview.superview;
while (true) {
if (superView) {
if ([superView isKindOfClass:[UITableViewCell class]]) {
return (UITableViewCell *)superView;
}
superView = [superView superview];
} else {
return nil;
}
}
} else {
return nil;
}
}
You could then get the index path in your button action method like so:
NSIndexPath *indexPath = [self indexPathForCellSubview:sender];
You don't need to set the tag for buttons to get the indexpath. You can simply get it using this piece of code:
- (void)sendMessage:(id)sender {
UITableViewCell *clickedCell = (UITableViewCell *)[[sender superview] superview];
NSIndexPath *clickedButtonIndexPath = [self.tableView indexPathForCell:clickedCell];
PFObject *object = [self.objects objectAtIndex:indexPath.row];
self.SendToUsername = [object objectForKey:#"username"];
self.SendToName = [object objectForKey:#"name"];
}
I have a UIViewController with a UITableView which has multiple accessory checkmark implemented into it. My problem is, when I click some cells in the tableview it gets checked but there will be some other cell also checked below. I can view it when I scroll down the tableview. I would only want the cell to be checked whichever the user is clicking and not the extra cells. Please let me know how can I do it. Thanks.
Here is the code:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [someData count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:#"Cell"];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell" forIndexPath:indexPath];
cell.textLabel.text=[self.someData objectAtIndex:indexPath.row];
cell.textLabel.font=[UIFont fontWithName:#"Times New Roman" size:11];
cell.textLabel.lineBreakMode = NSLineBreakByWordWrapping;
[cell.textLabel setNumberOfLines:2];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];
if ([selectedCell accessoryType] == UITableViewCellAccessoryNone) {
[selectedCell setAccessoryType:UITableViewCellAccessoryCheckmark];
NSArray *arrayOfIndexPathsTableOne = [self.tableView indexPathsForSelectedRows];
for (int i = 0; i < [arrayOfIndexPathsTableOne count]; i++) {
NSIndexPath *indexPathImInterestedIn = [arrayOfIndexPathsTableOne objectAtIndex:i];
UITableViewCell *currentCell = [self.tableView cellForRowAtIndexPath:indexPathImInterestedIn];
[saveData addObject:[NSString stringWithFormat:#"%#", currentCell.textLabel.text]];
}
} else {
[selectedCell setAccessoryType:UITableViewCellAccessoryNone];
NSArray *arrayOfIndexPathsTableOne = [self.tableView indexPathsForSelectedRows];
for(int i = 0; i < [arrayOfIndexPathsTableOne count]; i++) {
NSIndexPath *indexPathImInterestedIn = [arrayOfIndexPathsTableOne objectAtIndex:i];
UITableViewCell *currentCell = [self.tableView cellForRowAtIndexPath:indexPathImInterestedIn];
[saveData removeObject:[NSString stringWithFormat:#"%#", currentCell.textLabel.text]];
}
}
[tableView deselectRowAtIndexPath:indexPath animated:NO];
}
This is a cell reuse problem.
To fix, ensure that each time you return a cell from cellForRowAtIndexPath: you always set the selection (checkmark) status. That means explicitly setting it true and false as appropriate.
There are only 2 things you need:
Disable multiple selection on your UITableView.
Implement setSelected:(BOOL)selected in your UITableViewCells and make it select/deselect the cell's sub-views (your checkmarks) accordingly.
When you select table you show check box on it but when you scroll and the cell desapeare and it goes to reusable pool after you scroll back the cell is taken from this pool and it doesn't remember the 'state'.
The solution is create NSMutableArray and in didSelectCellAtIndexPath: method add or remove the indexPath for that cell to the array and in cellForRowAtIndexPath: check this array and show/hide checkmark base on that table.
dont write this line in cell for row at index path
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:#"Cell"];
it must be in loadview or viewdidload
I am trying to achive a email like select all functionality in uitableview where on same button tap user can checkmark or remove all checkmark and additionally user can also select/deselect rows(on didSelectRowAtIndexPath). I tried to do but its not working properly, here is my code.
- (IBAction)selectAll:(id)sender
{
if(myBoolean)
{
for (NSInteger s = 0; s < self.iTable.numberOfSections; s++)
{
for (NSInteger r = 0; r < [self.iTable numberOfRowsInSection:s]; r++)
{
[[self.iTable cellForRowAtIndexPath:[NSIndexPath indexPathForRow:r inSection:s]] setAccessoryType:UITableViewCellAccessoryNone];
}
}
myBoolean = NO;
[_selectUnselectButton setTitle:#"Select all Friends" forState:UIControlStateNormal];
}
else
{
for (NSInteger s = 0; s < self.iTable.numberOfSections; s++)
{
for (NSInteger r = 0; r < [self.iTable numberOfRowsInSection:s]; r++)
{
[[self.iTable cellForRowAtIndexPath:[NSIndexPath indexPathForRow:r inSection:s]] setAccessoryType:UITableViewCellAccessoryCheckmark];
NSLog(#"%d-%d",s,r);
}
}
myBoolean = YES;
[_selectUnselectButton setTitle:#"Unselect all Friends" forState:UIControlStateNormal];
}
}
-(void)tableView:(UITableView *)tableView_ didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView_ cellForRowAtIndexPath:indexPath];
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
if (cell.accessoryType == UITableViewCellAccessoryCheckmark)
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
else
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
}
I wrote a sample code that I adapted to your needs.
Basically it is
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *unifiedID = #"aCellID";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:unifiedID];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:unifiedID];
}
cell.textLabel.text = [self.states objectAtIndex:indexPath.row];
//if the indexPath was found among the selected ones, set the checkmark on the cell
cell.accessoryType = ([self isRowSelectedOnTableView:tableView atIndexPath:indexPath]) ? UITableViewCellAccessoryCheckmark : UITableViewCellAccessoryNone;
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *state = [self.states objectAtIndex:indexPath.row];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
if([self isRowSelectedOnTableView:tableView atIndexPath:indexPath]){
[self.selectedCells removeObject:indexPath];
[self.selecedStates removeObject:state];
cell.accessoryType = UITableViewCellAccessoryNone;
} else {
[self.selectedCells addObject:indexPath];
[self.selecedStates addObject:state];
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
NSLog(#"%#", self.selecedStates);
}
-(BOOL)isRowSelectedOnTableView:(UITableView *)tableView atIndexPath:(NSIndexPath *)indexPath
{
return ([self.selectedCells containsObject:indexPath]) ? YES : NO;
}
- (IBAction)selectAll:(id)sender {
[self.selecedStates removeAllObjects];
[self.selectedCells removeAllObjects];
NSUInteger numberOfSections = [self.tableView numberOfSections];
for (NSUInteger s = 0; s < numberOfSections; ++s) {
NSUInteger numberOfRowsInSection = [self.tableView numberOfRowsInSection:s];
for (NSUInteger r = 0; r < numberOfRowsInSection; ++r) {
NSIndexPath *idxPath = [NSIndexPath indexPathForRow:r inSection:s];
[self.selectedCells addObject:idxPath];
[self.selecedStates addObject:self.states[idxPath.row]];
}
}
[self.tableView reloadData];
}
- (IBAction)deselectAll:(id)sender {
[self.selecedStates removeAllObjects];
[self.selectedCells removeAllObjects];
[self.tableView reloadData];
}
- (IBAction)toggleAll:(id)sender {
if ([self.states count] == [self.selecedStates count]) {
[sender setTitle:#"select all"];
[self deselectAll:sender];
} else {
[sender setTitle:#"deselect all"];
[self selectAll:sender];
}
}
in action:
You are calling
[[self.iTable cellForRowAtIndexPath:[NSIndexPath indexPathForRow:r inSection:s]] setAccessoryType:UITableViewCellAccessoryNone];
for every row in every section within the tableView. if you have many row, this is ver inefficient, as it will deal with rows not on the screen. But this is not needed. just put every selected index path into an array and tell the tableView to reload. This will reload the visible cells and due to the implementation of -tableView:cellForRowAtIndexPath: cells wfor new rows will be correctly re-conigured.
Setting the accessory view needs to happen inside the tableView:cellForRowAtIndexPath: method. When you want to change the accessories from outside, the outside method needs to change the model first to indicate that check marks must be placed in certain cells, and then call reloadData on the UITableView.
One way to store what cells are checked is an array of NSIndexSet objects - one index set per section. In the example below I show code for a single section, but you should get an idea of how to make multiple sections work.
// This variable needs to be declared in a place where your data source can get it
NSMutableIndexSet *selected;
// You need to initialize it in the designated initializer, like this:
selected = [[NSMutableIndexSet alloc] init];
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
if ([selected containsIndex:indexPath.row]) {
[cell setAccessoryType:UITableViewCellAccessoryCheckmark];
} else {
[cell setAccessoryType:UITableViewCellAccessoryNone];
}
// Do the rest of your code
return cell;
}
Now in the code where you want to set rows selected or unselected you just need to call [selected addIndex:rowToSelect] or [selected removeIndex:rowToUnselect], and call your table's reloadData.
Use selectRowAtIndexPath:animated:scrollPosition: to select a row
and deselectRowAtIndexPath:animated: to deselect a row.
For more read the UITableView docs
Try this code instead of your old one
- (IBAction)selectAll:(id)sender
{
if(myBoolean)
{
for (NSInteger s = 0; s < self.iTable.numberOfSections; s++)
{
for (NSInteger r = 0; r < [self.iTable numberOfRowsInSection:s]; r++)
{
[self.iTable selectRowAtIndexPath:[NSIndexPath indexPathForRow:r inSection:s]] animated:YES scrollPosition:UITableViewScrollPositionNone];
}
}
myBoolean = NO;
[_selectUnselectButton setTitle:#"Select all Friends" forState:UIControlStateNormal];
}
else
{
for (NSInteger s = 0; s < self.iTable.numberOfSections; s++)
{
for (NSInteger r = 0; r < [self.iTable numberOfRowsInSection:s]; r++)
{
[self.iTable selectRowAtIndexPath:[NSIndexPath indexPathForRow:r inSection:s]] animated:YES scrollPosition:UITableViewScrollPositionNone];
NSLog(#"%d-%d",s,r);
}
}
myBoolean = YES;
[_selectUnselectButton setTitle:#"Unselect all Friends" forState:UIControlStateNormal];
}
}
-(void)tableView:(UITableView *)tableView_ didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView_ cellForRowAtIndexPath:indexPath];
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
if (cell.accessoryType == UITableViewCellAccessoryCheckmark)
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
else
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
}
You can follow these steps to implement this,
1) You should have a mutable array to store indexpaths
2) What you can do is, when you tap Check All or Uncheck All, do add or remove all indexpaths to/from array (which you've), reload table for update changes
3) In - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath datasource method, check into array using if([array containsObject:indexPath]), if exist mark it checked or unchecked
4) In - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath delegate method, you should check for already existence of indexpath tapped into array, as you've did in 3rd step, and add or remove indexpaths as per the condition, reload table for update changes
Take another NSMutableArray as SelectedArray
in didSelectRowAtIndexPath row You can Add remove objects from SelectedArray.
You can select a UITableViewCell calling UITableViews selectRowAtIndexPath method:
[yourtable selectRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0]
animated:NO
scrollPosition:UITableViewScrollPositionTop];
Put for loop for selectedArray to putcheckmark only in selected cells or All cells.
check my accepted answer here : Need to create a select all button for UITableView and add selections to an array in iOS
Xcode 8x
Swift 3x
Select Row
let indexPath = IndexPath(row: 0, section: 0)
mytableView.selectRow(at: indexPath, animated: true, scrollPosition: .bottom)
myTableView.delegate?.tableView!(myTableView, didSelectRowAt: indexPath)
DeSelect Row
let deselectIndexPath = IndexPath(row: 7, section: 0)
myTableView.deselectRow(at: deselectIndexPath, animated: true)
myTableView.delegate?.tableView!(tblView, didDeselectRowAt: indexPath)
you can do something like this:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[self doSomethingWithRowAtIndexPath:indexPath];
}