UIScrollView中的UITextField键盘遮挡问题的最简单解决办法

两步:

1重载textFieldDidBeginEditing

- (void)textFieldDidBeginEditing:(UITextField *)textField  {      foucsTextField = textField;      s_mainScrollView.contentSize = CGSizeMake(__SCREEN_WIDTH,__SCREEN_HEIGHT +216);//原始滑动距离增加键盘高度      CGPoint pt = [textField convertPoint:CGPointMake(0, 0) toView:s_mainScrollView];//把当前的textField的坐标映射到scrollview上      if(s_mainScrollView.contentOffset.y-pt.y+NAVIGATION_BAR_HEIGHT<=0)//判断最上面不要去滚动          [s_mainScrollView setContentOffset:CGPointMake(0, pt.y-NAVIGATION_BAR_HEIGHT) animated:YES];//华东      }

2:重载textFieldShouldReturn

- (BOOL)textFieldShouldReturn:(UITextField*)theTextField  {      {          [theTextField resignFirstResponder];                    //开始动画           [UIView beginAnimations:nil context:nil];            //设定动画持续时间           [UIView setAnimationDuration:0.3];          s_mainScrollView.frame = CGRectMake(0, NAVIGATION_BAR_HEIGHT, __SCREEN_WIDTH, __SCREEN_HEIGHT);          s_mainScrollView.contentSize = CGSizeMake(__SCREEN_WIDTH,__SCREEN_HEIGHT);          //动画结束           [UIView commitAnimations];                          }      return YES;  }