display rows/cells in UITableview one by one with animation - ios

Question

I have a table view with a prototype cell designed in ViewController scene of storyboard.
Now my objective is when the app will start and the view will be loaded then the data in tableview should not come at once rather it will come one by one with animation.
Here is the code how I am doing my animation:-
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (![shownIndexes containsObject:indexPath]) {
[shownIndexes addObject:indexPath];
[UIView animateWithDuration:2.0f delay:0.0f usingSpringWithDamping:0.5f initialSpringVelocity:1.0f options:UIViewAnimationOptionAllowAnimatedContent animations:^{
vw.frame = frame;
} completion:^(BOOL finished) {
}];
}
Other methods:-
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
return 1; //count of section
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 20; //count number of row from counting array hear cataGorry is An Array
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 120;
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *MyIdentifier = #"CellA";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
The following code is animating the first 5 cells which are displaying in tableview initially at once , but after that when I am scrolling it is happening one by one.
So major issue is
How to display the rows or cells in UITableview one by one with animation not at once?
Any info or help will be appreciated.
Thanks.

Answer 1

Tell the table first that in only has one row, in numberOfRows…. After a delay, return 2 instead of 1. And so on.