IOS: Clear Previous content in Modal viewcontroller - iphone

Question

In my application, I have used one modal viewcontroller which contains one TableView with multiple textfields.
Say My main viewcontroller called SridharViewController and the modal viewcontroller called ResultsViewController
There is one button in SridharViewController , touching that button will open the modal(ResultsViewController)
[self presentModalViewController:resultsViewController animated:YES];
And in the results view controller , There are many text fields which are aligned in the TableView. and one 'OK' button . pressing 'OK' button will dismiss the modal
[self dismissModalViewControllerAnimated:YES];
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"cellForRowAtIndexPath called");
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
//UITextField *formTextField = [[UITextField alloc] initWithFrame:CGRectMake(30, 11, 270, 30)];
UITextField *formTextField =nil;
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
if(indexPath.row == 0){
formTextField = [[UITextField alloc] initWithFrame:CGRectMake(30, 12, 270, 30)];
}
else{
formTextField = [[UITextField alloc] initWithFrame:CGRectMake(30, 11, 270, 30)];
}
}else{
if(indexPath.row == 0){
formTextField = [[UITextField alloc] initWithFrame:CGRectMake(50, 12, 670, 30)];
}
else{
formTextField = [[UITextField alloc] initWithFrame:CGRectMake(50, 11, 670, 30)];
}
}
formTextField.placeholder = [self.formFields objectAtIndex:indexPath.row];
formTextField.tag = indexPath.row;
formTextField.text=#"";
formTextField.adjustsFontSizeToFitWidth = YES;
formTextField.textColor = [UIColor blackColor];
formTextField.borderStyle = UITextBorderStyleNone;
formTextField.keyboardType = UIKeyboardTypeNumbersAndPunctuation;
[formTextField setAutocapitalizationType:UITextAutocapitalizationTypeNone];
[formTextField setAutocorrectionType:UITextAutocorrectionTypeNo];
formTextField.backgroundColor = [UIColor clearColor];
formTextField.textAlignment = UITextAlignmentLeft;
formTextField.delegate = self;
[formTextField setEnabled: YES];
[formTextField setReturnKeyType:UIReturnKeyNext];
[self.textFields addObject:formTextField];
[cell addSubview:formTextField];
return cell;
}
When I calling the modal view second time , the modal shows the previous content. I want to clear that previous content.
I have tried both updates and reload functions. None of them calling the cellForRowAtIndexPath method.
[self.theTable reloadInputViews];
Please provide me the best way to do this.

Answer 1

In viewWillAppear do the following
arrayOfInputs = [NSArray array];
[self.tableview reloadData];
where arrayOfInputs is where you store your objects that would display on tableview. After making the data source empty and reload table view, all the contents will clear. Then you can reload the table view with required data.

Answer 2

When you want to reload tableview please use below line
[self.tableview reloadData]

Answer 3

Add this code in ViewDidLoad method this will clear all textfield text
for (UIView *view in [self.view subviews]) {
if ([view isKindOfClass:[UITextField class]]) {
UITextField *textField = (UITextField *)view;
textField.text = #"";
}
}

Answer 4

I solved my problem by this code
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
NSLog(#" cellForRowAtIndexPath create new cell %d",indexPath.row);
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
NSLog(#" cellForRowAtIndexPath update cell %d",indexPath.row);
//UITextField *formTextField = [[UITextField alloc] initWithFrame:CGRectMake(30, 11, 270, 30)];
for(UITextField *lbl in [cell subviews])
{
NSLog(#" removing UITextField from cell %d",indexPath.row);
if(lbl.tag == (indexPath.row+2)){
[lbl removeFromSuperview];
}
}
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
if(indexPath.row == 0){
self.tableTextField = [[UITextField alloc] initWithFrame:CGRectMake(30, 12, 270, 30)];
}
else{
self.tableTextField = [[UITextField alloc] initWithFrame:CGRectMake(30, 11, 270, 30)];
}
}else{
if(indexPath.row == 0){
self.tableTextField = [[UITextField alloc] initWithFrame:CGRectMake(50, 12, 670, 30)];
}
else{
self.tableTextField = [[UITextField alloc] initWithFrame:CGRectMake(50, 11, 670, 30)];
}
}
self.tableTextField .placeholder = [self.formFields objectAtIndex:indexPath.row];
self.tableTextField .tag = indexPath.row+2;
self.tableTextField .adjustsFontSizeToFitWidth = YES;
self.tableTextField .textColor = [UIColor blackColor];
self.tableTextField .borderStyle = UITextBorderStyleNone;
self.tableTextField .keyboardType = UIKeyboardTypeNumbersAndPunctuation;
[self.tableTextField setAutocapitalizationType:UITextAutocapitalizationTypeNone];
[self.tableTextField setAutocorrectionType:UITextAutocorrectionTypeNo];
self.tableTextField .backgroundColor = [UIColor clearColor];
self.tableTextField .textAlignment = UITextAlignmentLeft;
self.tableTextField .delegate = self;
self.tableTextField .text=#"";
[self.tableTextField setEnabled: YES];
[self.tableTextField setReturnKeyType:UIReturnKeyNext];
[cell addSubview:self.tableTextField ];
return cell;
}