NSThread and UIProgressView on an UITableCells
<p>I have a project in which a series of NSThread objects do something and display the progress on the relevant UIProgressView.
I display and custom draw these UIProgressViews on a UITableView.
I set the progress delegate of each NSThread to a certain UIProgressView one by one.</p>

<p>One problem is that if I drag and move up/down any UITableCell, some UITableCells on the top and bottom of the UITableView will disapear(cell becomes nil) and need redraw. </p>

<p>All controlls on these UITableCells can redraw correctly, except these UIProgressView.</p>

<p>I do not know when I redraw the UIProgressView, wheather I need to reassign the delegate relationship between the progress delegate of each NSThread and its linked UIProgressView.</p>

<p>Thanks</p>

<p>interdev</p>
