摘譯自: http://stackoverflow.com/questions/484855/how-programatically-move-a-uiscrollview-to-focus-in-a-control-above-keyboard

使用一個例項變數記錄檢視在為鍵盤調整之前的位置，以用於當UITextField返回時恢復到之前的狀態。

//header@interfaceTheViewController:UIViewController<UITextFieldDelegate>{CGPoint svos;}//implementation-(void)textFieldDidBeginEditing
 
:(UITextField*)textField {
    svos = scrollView.contentOffset;CGPoint pt;CGRect rc =[textField bounds];
    rc =[textField convertRect:rc toView:scrollView];
    pt = rc.origin;
    pt.x =0;
    pt.y -=60;[scrollView setContentOffset:pt animated:YES];}-(BOOL)textFieldShouldReturn:(UITextField*)textField 
 
{[scrollView setContentOffset:svos animated:YES];[textField resignFirstResponder];return YES;}