Question

I have a UITableViewController and want to move down a cell in my table every time the accelerometer’s X axis is greater then 0.5 (when this event occurs i increment a value named “TEST” ). How can i change the background of a cell that has it’s indexPath.row equal to TEST ?

Here is how i try to access the method(from the accelerometer function) but it gives me an error :

  - (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration 
{


              if(acceleration.x>0.5)
                TEST++; 
            if(TEST<0) TEST=0;
            if(TEST>19) TEST=19;

             NSIndexPath *temp = [[NSIndexPath alloc] initWithIndex:TEST];
            [self tableView:[self tableView] didSelectRowAtIndexPath:temp];


    }

     I have 20 rows in my table (hence the clamp).

Answer 1

selectRowAtIndexPath:animated:scrollPosition:

Selects a row in the receiver identified by index path, optionally scrolling the row to a location in the receiver.

• (void)selectRowAtIndexPath:(NSIndexPath *)indexPath animated:(BOOL)animated scrollPosition:(UITableViewScrollPosition)scrollPosition

Parameters

indexPath

An index path identifying a row in the receiver.

animated
YES if you want to animate the selection and any change in position, NO if the change should be immediate.

scrollPosition

A constant that identifies a relative position in the receiving table view (top, middle, bottom) for the row when scrolling concludes. See “Table View Scroll Position”

here

            NSIndexPath *temp = [[NSIndexPath alloc] initWithIndex:TEST];


       [self.tableview selectRowAtIndexPath:temp animated:YES scrollPosition:UITableViewScrollPositionNone];