当键盘出现在像 4s 、 5 和 5s 这样的小屏幕上时如何向上移动视图但是当它进入 iphone 6 时视图不应该向上移动

Question

如何在 4s、5 和 5s 等小屏幕上出现键盘时向上移动视图，但在进入 iphone 6 和 6S 时视图不应向上移动。

我正在分享我的代码，这是我在我的应用程序中为所有屏幕完成的，但在我的情况下，当它在 6 或 6 秒内输入时，视图不应向上移动。

-(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
{
    const int movementDistance = -60; // tweak as needed
    const float movementDuration = 0.3f; // tweak as needed

    int movement = (up ? movementDistance : -movementDistance);

    [UIView beginAnimations: @"animateTextField" context: nil];
    [UIView setAnimationBeginsFromCurrentState: YES];
    [UIView setAnimationDuration: movementDuration];
    self.view.frame = CGRectOffset(self.view.frame, 0, movement);
    [UIView commitAnimations];
}

Answer 1

我建议你使用IQKeyboardManager它会为你管理一切事半功倍

Answer 2

// 在主视图上添加一个滚动视图并在该滚动视图上添加 UITextField

-(void) viewDidLoad
{
  UIScrollView  *myScrollView =  [ [UIScrollView  alloc]  initWithFrame:[UIScreen mainScreen ].bounds];
  [myScrollView .contentSize =CGSizeMake(320, 500);
  [myScrollView .contentInset = UIEdgeInsetsMake(0, 0, 60, 0);
  [self.view addSubView:myScrollView ];

  UITextField *myTextField = [ [UITextField  alloc] initWithFrame:CGRectMake(20,30,100,33)];
  [myScrollView addSubView:myTextField ];
   myTextField.delegate = self;
}

//设置scrollview内容偏移量使myTextField上移

  - (void) textFieldDidBeginEditing:(UITextField *)textField
{
  [myScrollView setContentOffset:CGPointMake(0,textField.center.y-80) animated:YES]; 
  // here '80' can be any number which decide the height that textfiled should move
}

//将文本框移动到原来的位置

- (BOOL) textFieldShouldReturn:(UITextField *)textField
{
  [[myScrollView  setContentOffset:CGPointMake(0,0) animated:YES];
  [textField resignFirstResponder];
  return YES;
}

当键盘出现在像 4s 、 5 和 5s 这样的小屏幕上时如何向上移动视图但是当它进入 iphone 6 时视图不应该向上移动

How to move View up when Keyboard appeared in small screen like 4s , 5 and 5s but view should not move up when its enter inside iphone 6

objective-c

ui-design

ios