UIKeyBoard调整方向更改为横向

这是一个很菜鸟的问题。当UIKeyBoard显示时，我在底部有一个UIToolBar，它应该可以通过键盘动态地上下移动。我在UIKeyBoard通知的帮助下工作。我们正在讨论的视图已启用分割视图。当设备方向是横向时，两个视图都显示为列[希望是有道理的]。UIKeyBoard调整方向更改为横向

当显示按键板，我这样做

CGSize keyBoardSize = [[notificationInfo objectForKey:UIKeyboardFrameEndUserInfoKey]CGRectValue].size; 

CGRect toolbarFrame= [BottomToolBar frame]; 
toolbarFrame.origin.y -= keyBoardSize.height;  
[UIView beginAnimations:nil context:nil]; 
[UIView setAnimationDuration:0.3]; 
BottomToolBar .frame = viewFrame; 
[UIView commitAnimations];

当钥匙板被hiiden我这样做

toolbarFrame.origin.y += keyBoardSize.height;

我的问题是设备取向变成横向，当键板是当可见底部工具栏消失了。我看到它迅速上升。我不知道如何解决这个问题。任何人都可以帮忙吗？另外，有没有办法让键盘跨越分割视图中的两个视图？

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2010-03-19 Dave

我也有这个问题，所有我能想到的是关闭键盘和重新显示它（辞职，然后再次成为第一响应者）。但是这似乎很不令人满意。

请注意，您应该将屏幕坐标的矩形转换为视图的坐标。（屏幕坐标不旋转。）

CGRect keyboardRect = [[notificationInfo objectForKey:UIKeyboardFrameEndUserInfoKey]CGRectValue]; 
keyboardRect = [[BottomToolBar superview] convertRect:keyboardRect fromView:nil];

更新：您必须UIKeyboardWillShowNotification注册，那么你的操作将被调用的时候界面旋转:)

另见： https://devforums.apple.com/message/181482#181482

来源

2010-03-26 05:52:15 Corin

如果您试图将工具栏保留在键盘框架的上方并显示通话状态栏，则此转换至关重要。你可以使用键盘命令CMD + Y – brynbodayle 2013-09-29 02:30:53

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; 
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil]; 
} 

- (void)keyboardWillShow:(NSNotification *)aNotification 
{ 
    CGRect keyboardBounds; 
    [[aNotification.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey] getValue: &keyboardBounds]; 

    CGFloat keyboardHeight; 
    switch ([UIApplication sharedApplication].statusBarOrientation) { 
     case UIInterfaceOrientationPortrait: 
     case UIInterfaceOrientationPortraitUpsideDown: 
      keyboardHeight = keyboardBounds.size.height; 
      break; 
     case UIInterfaceOrientationLandscapeLeft: 
     case UIInterfaceOrientationLandscapeRight: 
      keyboardHeight = keyboardBounds.size.width; 
      break; 
    } 

    NSTimeInterval animationDuration = [[[aNotification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]; 

    CGRect rect = table.frame; 
    rect.size.height -= keyboardHeight; 
    [UIView beginAnimations:@"ResizeForKeyboardShow" context:nil]; 
    [UIView setAnimationDuration:animationDuration]; 
    table.frame = rect; 
    [UIView commitAnimations]; 
} 

- (void)keyboardWillHide:(NSNotification *)aNotification 
{ 
    CGRect keyboardBounds; 
    [[aNotification.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey] getValue: &keyboardBounds]; 

    CGFloat keyboardHeight; 
    switch ([UIApplication sharedApplication].statusBarOrientation) { 
     case UIInterfaceOrientationPortrait: 
     case UIInterfaceOrientationPortraitUpsideDown: 
      keyboardHeight = keyboardBounds.size.height; 
      break; 
     case UIInterfaceOrientationLandscapeLeft: 
     case UIInterfaceOrientationLandscapeRight: 
      keyboardHeight = keyboardBounds.size.width; 
      break; 
    } 

    NSTimeInterval animationDuration = [[[aNotification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]; 

    CGRect rectTable = table.frame; 
    rectTable.size.height += keyboardHeight; 
    [UIView beginAnimations:@"ResizeForKeyboard" context:nil]; 
    [UIView setAnimationDuration:animationDuration]; 
    table.frame = rectTable; 
    [UIView commitAnimations]; 
}

来源

2010-09-20 09:55:29

在模拟器中测试这个不要忘记[[NSNotificationCenter defaultCenter] removeObserver：self]; on viewDidUnload和dealloc – cynistersix 2012-05-10 01:09:29

仅供参考：您可以使用方便的'UIDeviceOrientationIsPortrait'宏而不是那个大的'switch'和'case'怪物。 :) – 2012-10-12 08:25:32

这些答案很好，除了外接键盘。当硬件键盘出现时，它看起来像在消息中传递的键盘框架的“高度”属性仍然与使用虚拟键盘时的相同，这意味着该代码从视图框架中减去高度，现有的键盘（创造一个尴尬的空间）。

我发现的最佳解决方案是注意到键盘框架的“y”属性被指定在屏幕的底部（意味着虚拟键盘实际存在，就在屏幕之外）。

来源

2010-12-31 14:53:16

UITextFields有一个inputAccessoryView属性，允许在UIKeyboard上方添加UIToolBar。

来源

2011-02-21 16:52:00 geekinit

是的，但OP希望工具栏在隐藏键盘时在屏幕底部可见。 – ma11hew28 2012-09-02 20:51:35

没问题，只需在底部设置工具栏作为inputAccessoryView，就完成了。 – nverinaud 2013-05-03 07:13:22

的解决方案是基于块的动画设置选项UIViewAnimationOptionBeginFromCurrentState，或

[UIView beginAnimations:nil context:nil]; 
[UIView setAnimationDuration:[notificationInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] floatValue]]; 
[UIView setAnimationBeginsFromCurrentState:YES]; 
BottomToolBar.frame = viewFrame; 
[UIView commitAnimations];

你的情况。然后，当从纵向改变方向到风景时，视图不会突然移动。

来源

2012-05-31 16:49:15

- (void)viewDidLoad { // Or somewhere else 
    [super viewDidLoad]; 

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(kbDidChange:) UIKeyboardDidChangeFrameNotification object:nil]; 
} 

- (void)kbDidChange:(NSNotification *)notification { 
    NSDictionary* keyboardInfo = [notification userInfo]; 
    CGRect keyboardFrame = [[keyboardInfo valueForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue]; 
    keyboardFrame = [[messageBar superview] convertRect:keyboardFrame fromView:nil]; 

    CGRect ol = messageBar.frame; // messageBar is your UIToolbar.. 
    ol.origin.y = keyboardFrame.origin.y-44; 
    messageBar.frame = ol; 
}

来源

2012-09-02 12:54:22

您可以考虑解释此代码，以及它为什么回答手头的问题？ – 2012-09-21 21:39:11

UIKeyBoard调整方向更改为横向

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