使用scrollview iOS看不到Tableview最后一个单元格

Question

I have structure of file as : View -> ScrollView -> TableView. Now the content of tableView is dynamically determined. If the content is quite large then last record of table is not visible. I tried setting following code :

 self.scrollView.contentSize = CGSizeMake(320.0,568.0);

[self.scrollView setContentOffset:CGPointMake(self.scrollView.contentOffset.x, 0)
                         animated:YES];

but created problem in landscape mode. The content of table is getting scrolled to much bottom. If size of ScrollBar that appears while scrolling is decreased will it work?

Any other fix for this problem?

Answer 1

Maybe this is kind of dirty, lol. Use -

tableView.contentInset = UIEdgeInsetsMake(0, 0, 120, 0); //values passed are - top, left, bottom, right

Pass bottom offset as per your needs.

Answer 2

Your tableView height is supposed to be, ScreeHeight-NavBarHeight . In your case, it looks like you tableView is taller than the visible screen height available to it.

As a quick fix, try following but ideally you need to use constraints so it automatically sized according to the available screen height.

- (void)viewDidLayoutSubviews {
    CGFloat navbarHeight = 44; //In iOS7, this is supposed to be 64 but you should dynamically calculate it or better use constraints
    CGRect tempFrame = self.view.frame;
    self.tableView.frame = CGRectMake(tempFrame.origin.x, tempFrame.origin.y, tempFrame.size.width, tempFrame.size.height - navbarHeight);
}

NOTE: This code needs to go to your UITableViewController sub class

Answer 3

You have to take into consideration table's view row height and number of row while setting scrollview's contentSize. For instance, if your tableview's height is 200 and the tableview contains 3 rows, your content size's height should be set as follows:-

self.scrollView.contentSize = CGSizeMake(320.0, (200 * 3));
[self.scrollView setContentOffset:CGPointMake(self.scrollView.contentOffset.x, 0)
                     animated:YES];