键盘出现在iPad时如何移动视图？

3 回答

• 1

  我的建议是将对象放在 UIScrollView 上，然后当键盘出现时，你可以使用 scrollRectToVisible: .

  [scroller scrollRectToVisible:frame animated:YES];
  

  回复于 2024-05-05T15:23:57+08:00
• 1

  我为我的一个应用程序编写了这段代码 .

  它会自动检测TextField的位置并滚动baseView相应 .

  - (void)textFieldDidBeginEditing:(UITextField *)textField
  {
      [self animateTextField:textField up:YES];
  }
  
  
  - (void)textFieldDidEndEditing:(UITextField *)textField
  {
      [self animateTextField:textField up:NO];
  }
  
  
  
  - (void) animateTextField: (UITextField*) textField up: (BOOL) up
  {
      CGPoint temp = [textField.superview convertPoint:textField.frame.origin toView:nil];
      UIInterfaceOrientation orientation =
      [[UIApplication sharedApplication] statusBarOrientation];
      if (orientation == UIInterfaceOrientationPortrait){
  
          if(up) {
              int moveUpValue = temp.y+textField.frame.size.height;
              animatedDis = 264-(1024-moveUpValue-5);
          }
      }
      else if(orientation == UIInterfaceOrientationPortraitUpsideDown) {
          if(up) {
              int moveUpValue = 1004-temp.y+textField.frame.size.height;
              animatedDis = 264-(1004-moveUpValue-5);
          }
      }
      else if(orientation == UIInterfaceOrientationLandscapeLeft) {
          if(up) {
              int moveUpValue = temp.x+textField.frame.size.height;
              animatedDis = 352-(768-moveUpValue-5);
          }
      }
      else
      {
          if(up) {
              int moveUpValue = 768-temp.x+textField.frame.size.height;
              animatedDis = 352-(768-moveUpValue-5);
          }
  
      }
      if(animatedDis>0)
      {
          const int movementDistance = animatedDis;
          const float movementDuration = 0.3f; 
          int movement = (up ? -movementDistance : movementDistance);
          [UIView beginAnimations: nil context: nil];
          [UIView setAnimationBeginsFromCurrentState: YES];
          [UIView setAnimationDuration: movementDuration];
          if (orientation == UIInterfaceOrientationPortrait){
              baseViewController.view.frame = CGRectOffset(baseViewController.view.frame, 0, movement);       
          }
          else if(orientation == UIInterfaceOrientationPortraitUpsideDown) {
  
              baseViewController.view.frame = CGRectOffset(baseViewController.view.frame, 0, movement);
          }
          else if(orientation == UIInterfaceOrientationLandscapeLeft) {
  
              baseViewController.view.frame = CGRectOffset(baseViewController.view.frame, 0, movement);
          }
          else {
              baseViewController.view.frame = CGRectOffset(baseViewController.view.frame, 0, movement);
          }
  
          [UIView commitAnimations];
      }
  }
  

  回复于 2024-05-05T15:23:57+08:00
• 7

  当up = NO时，将ValayPatel代码"if"语句更改为 if(animatedDis>0 || !up) ，否则移位视图始终位于上一个位置 .

  回复于 2024-05-05T15:23:57+08:00