Reordering rotated uitableviewcell - ios

Question

I've got a uitableview that I've rotated 180 degrees but whose cells I've rotated back -180 degrees. The effect is that I am loading my data from the bottom of the table view. This works great. The problem comes when I try to reorder the cells. If I try to drag a cell its movement is inverted and jumps immediately to the top/bottom of the table view, depending on which direction I was dragging.
The easiest way to see this is by starting a new project using the master detail template with core data. In the OIMasterViewConroller.m file place
CGAffineTransform transform = CGAffineTransformMakeRotation(-3.14159);
self.tableView.transform = transform;
in the viewDidLoad method, and place
CGAffineTransform transform = CGAffineTransformMakeRotation(-3.14159);
cell.transform = transform;
in the configureCell method. Finally, change the canMoveRowAtIndexPath to return YES and implement a blank
-(void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
}
Run the project and add a few items to the tableview with the + button. Then Click on the edit button and try to reorder.
I believe the problem lies with the cell since removing the rotation on the cell will stop this strange behavior, even though the table is upside down.
I thought about just rotating the text inside the cell, but then the delete buttons are upside down, as well as on the wrong side.

Answer 1

So, I ended up subclassing both the tableview and the cell used in the table view. Here is some of what I've done:
In the tableview subclass I overload the layoutsubviews:
- (void)layoutSubviews
{
[super layoutSubviews];
for (UIView *subview in self.subviews) {
if ([NSStringFromClass([subview class]) isEqualToString:#"UIShadowView"]) {
subview.hidden = YES;
}
}
}
This removes the drop shadow. If you don't the shadow shows at the top of the tableviewcells when they are being reordered.
For the tableviewcell subclass I changed its layoutSubviews like this:
- (void)layoutSubviews
{
[super layoutSubviews];
for (UIView *subview in self.subviews) {
if ([NSStringFromClass([subview class]) isEqualToString:#"UITableViewCellDeleteConfirmationControl"]) {
CGRect newFrame = subview.frame;
newFrame.origin.x = 0;
subview.frame = newFrame;
subview.transform = CGAffineTransformMakeRotation(-M_PI);
}
else if ([NSStringFromClass([subview class]) isEqualToString:#"UITableViewCellEditControl"]) {
CGRect newFrame = subview.frame;
newFrame.origin.x = 320-newFrame.size.width;
subview.frame = newFrame;
subview.transform = CGAffineTransformMakeRotation(-M_PI);
}
else if ([NSStringFromClass([subview class]) isEqualToString:#"UITableViewCellReorderControl"]) {
CGRect newFrame = subview.frame;
newFrame.origin.x = 0;
subview.frame = newFrame;
}else if([NSStringFromClass([subview class]) isEqualToString:#"UIButton"]) {
CGRect newFrame = subview.frame;
newFrame.origin.x = 0;
subview.frame = newFrame;
subview.transform = CGAffineTransformMakeRotation(-M_PI);
}else{
subview.transform = CGAffineTransformMakeRotation(-M_PI);
}
}
}
This rotates and moves all the delete buttons/indicators ect. The important thing to note is that we DO NOT rotate the UITableViewCellReorderControll. Rotating this subview is what makes the reordering messed up.