CODEWITHSUNDEEP
iosiphoneuitableview
Kirubachari
Kirubachari

Reputation: 688

Callback for cellForRowAtIndexPath?

My Project:

I have an UITableView in My project. Each and every UITableViewCell have one UITextView as a subview. When user tap on 'Add' button, I need to add one more UITableViewCell with UITextView to UITableView and I have to set focus into the added UITextView.

What I've Tried:

Once user tap on add button, I will update the numberOfRowsInSection of UITableView and subsequently I'll call [UITableView reloadData] to invoke [UITableView cellForRowAtIndexPath]. Here, I'll append the UITextView as subview of UITableViewCell.It Works fine until this point.

My problem:

I need to set focus into the UITextView Once after the [UITableView cellForRowAtIndexPath] get called. When I called the set focus method for UITextView after [UITableView reloadData], It is not working. I want to know, Is there any callback method for [UITableView cellForRowAtIndexPath]?

Thanks for your answers.

Upvotes: 0

Views: 274

Answers (2)

Akhilrajtr
Akhilrajtr

Reputation: 5182

Try this,

In Add button action

//Assuming only 1 section, if you have more section find sections by `numberOfSections` method
NSInteger totalRows = [self.tableView numberOfRowsInSection:0];
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:totalRows inSection:0];

[tableView beginUpdates];
[tableView insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];
[tableView endUpdates];

//If you have custom cell
CustomCell *cell = (CustomCell *)[self.tableView cellForRowAtIndexPath:indexPath];
[cell.textView becomeFirstResponder];

//If you are not using custom cell, then set tag to textView and
//UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
//UITextView *textView = (UITextView *)[cell viewWithTag:kTextViewTag];
//[textView becomeFirstResponder];

Upvotes: 1

Pavan
Pavan

Reputation: 18508

after you have called your reloadData method you can do something like this: To get a reference to the last row in the last section…

// First figure out how many sections there are
NSInteger lastSectionIndex = [self.myTableView numberOfSections] - 1;

// Then grab the number of rows in the last section
NSInteger lastRowIndex = [self.myTableView numberOfRowsInSection:lastSectionIndex] - 1;

// Now just construct the index path
NSIndexPath *pathToLastRow = [NSIndexPath indexPathForRow:lastRowIndex inSection:lastSectionIndex];

//Grab a reference of your cell from the last row
MyCustomCell *myCC = [self.myTableView cellForRowAtIndexPath:pathToLastRow];

//Use this cell reference to set focus to your UITextView
[myCC.myTextView setFirstResponder:YES];

Upvotes: 0

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