UIScrollView's origin changes after popping back to the UIViewController

Question

I have a UIViewController subclass as a scene in the storyboard that contains a UIScrollView containing various subviews. One of the subviews is a

Answer 1

recently , I have encountered this bug, can be solved using these codes：

// fix ios 6 bug begin
- (void)viewDidDisappear:(BOOL)animated
{
    [super viewDidDisappear:animated];

    if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7) {
        isRecoredforios6 = YES;
        recordedOffsetforios6 = self.tableView.contentOffset;
        recordedSizeforios6 = self.tableView.contentSize;
    }
}

- (void)viewDidLayoutSubviews
{
    [super viewDidLayoutSubviews];
    if (isRecoredforios6) {
        isRecoredforios6 = NO;
        self.tableView.contentSize = recordedSizeforios6;
        self.tableView.contentOffset = recordedOffsetforios6;
    }
}
// fix ios 6 bug end

thanks Peter Jacobs！