UITableView Animation Headache


UITableView Animation Headache



NSIndexPath* updatedPath = [NSIndexPath indexPathForRow: 0 inSection: 0];  NSIndexPath* updatedPath2 = [NSIndexPath indexPathForRow: 1 inSection: 0];  NSArray* updatedPaths = [NSArray arrayWithObjects:updatedPath, updatedPath2, nil];  [self.mySexyTableView reloadRowsAtIndexPaths:updatedPaths withRowAnimation:UITableViewRowAnimationTop]; 

The above code works and it animates. The problem is that I have lot of data and I don't want to hard-code the row indexes. Since I have only one section in my table section can be 0. How can I dynamically generate NSArray of NSIndexPath objects?

Or is there an easier way to animate the table view. All the rows in my table view change when the user clicks the tab on top of the table view.


Scrolling to range in UITextView

1:

should we need to release viewcontroller's object after pushing into navigation controller?
To generate the array of index paths, you could just loop:. scrollview scrolls smooth in simulator but not in device?
	NSMutableArray *updatedPaths = [NSMutableArray array]; 	for (NSNumber *row in any Array) { 		NSIndexPath *updatedPath = [NSIndexPath indexPathForRow:[row intValue] inSection:0]; 		[updatedPaths addObject:updatedPath]; 	} 	[self.mySexyTableView reloadRowsAtIndexPaths:updatedPaths withRowAnimation:UITableViewRowAnimationTop]; 
If you reload all data in your TableView, why not just call the reloadData method?. Can we run Java applictions on iPhone? [closed]
What's a Java alternative to Google App Engine for developing iPhone Push Notification services?Running JavaScript in a UIWebView before any other JavaScript is run

2:

UIScrollView image/photo viewer with paging enabled and zooming
If you want to refresh an entire section:. Creating the Iphone MapKit showUserLocation Ring Annimation
[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationTop]; 

3:

If you have more than one indexPathForRow with equal row index, you receive this exception.. For erample.
[segmentTable reloadRowsAtIndexPaths: [[NSArray alloc] initWithObjects:  								[NSIndexPath indexPathForRow: 1 inSection: 1],  								[NSIndexPath indexPathForRow: 1 inSection: 1], nil] 								withRowAnimation:UITableViewRowAnimationNone]; 

4:

I finally got it working. Here is the code:.
NSMutableArray *indexPaths = [[[NSMutableArray alloc] init] autorelease]; for (int i = 0; i < [mySexyList count]; i++) {    NSIndexPath *updatedPath = [NSIndexPath indexPathForRow:i inSection:0];    [indexPaths addObject:updatedPath]; }  [self.myFunkyTableView reloadRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationTop]; 
The problem was this I was returning hard coded value from numberOfRowsInSection: method which was not the same as mySexyList size. This was crashing the app..

5:

Assume self.arTableData is a mutable array of table & tableView is an instance of UITableView. Assume there are 10 rows ( which means 10 objects in array ) in tableView. I did implement following code to remove rows animated..
int i; // to remove from 3 to 6 for(i=2;i<6;i++) {     [self.arTableData removeObjectAtIndex:i];     [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:i inSection:0]] withRowAnimation:UITableViewRowAnimationRight]; } 
That trick works for me without any hassles. Hope it job same for you. Best of luck..

6:

Just to add my quick fix into the mix as it was simple once I found it. What was happening was this I have a table this is "grouped" by my own code using the same technique found at: cocoanetics.com. When the user does any thing requiring an update to a cell, and the table wasn't grouped at this time, my code was endeavor to use.
[[self tableView] reloadRowsAtIndexPaths:paths withRowAnimation:UITableViewRowAnimationAutomatic]; 
specifying paths to both the cell and the non-existent header. This caused the same error others have reported above. All I had to did was ensure this the "paths" provided to reloadRowsAtIndexPaths:withRowAnimation: actually existed. That done, all was fine..


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