How to render a whole UITableView as an UIImage in iOS?

Question

I have simple UITableView with some data. The table\'s height is greater than the screen size. Now I need to catch screenshot of this table (a whole table). I k

Answer 1

UIGraphicsBeginImageContextWithOptions(CGSizeMake(self.tableView.contentSize.width, self.tableView.contentSize.height), YES, 0);

CGFloat originY = 0;

CGRect rectFirst =  CGRectMake(0, originY, self.tableView.bounds.size.width, self.view.bounds.size.height);

[self.tableView scrollRectToVisible:rectFirst animated:NO];

[self.tableView drawViewHierarchyInRect:rectFirst afterScreenUpdates:true];

while (originY < self.tableView.contentSize.height) {

   CGRect rectSecond =  CGRectMake(0, originY, self.tableView.bounds.size.width, self.view.bounds.size.height);

    [self.tableView scrollRectToVisible: rectSecond animated:NO];

    [self.tableView drawViewHierarchyInRect: rectSecond afterScreenUpdates:true];

    originY += self.view.bounds.size.height;

}

CGRect rectFinally =  CGRectMake(0, originY, self.tableView.bounds.size.width, self.tableView.contentSize.height - originY);

[self.tableView scrollRectToVisible:rectFinally animated:NO];

[self.tableView drawViewHierarchyInRect:rectFinally afterScreenUpdates:true];

UIImage * image = UIGraphicsGetImageFromCurrentImageContext();  

UIGraphicsEndImageContext();

It's very important to set animated to NO, and don't block the UI thread