Question

我想要一个带有非透明键盘的键盘 - 我无法使用任何支持的UIKeyboardTypes。还有另一种解决方法吗？

我想我可以用键盘上的背景视图覆盖我想要的颜色 - 是否有一种很好的方法可以与键盘节目动画同步动画该背景视图？

Answer 1

当使用iOS 7的基本SDK在Xcode 5中编译应用程序时，iOS7中的键盘是半透明的如果您在Xcode 4.6.x上构建应用程序，您将拥有如前所述的非半透明键盘（我知道这是一个糟糕的解决方案但是，我认为我会建议它）

无论如何，你可以尝试使用默认的键盘通知：

UIKeyboardWillShowNotification
UIKeyboardWillHideNotification

应该是这样的：

-(void)viewWillAppear:(BOOL)animated
{
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillShow:)
                                                 name:UIKeyboardWillShowNotification
                                               object:nil];

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

-(void)viewWillDisappear:(BOOL)animated
{
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:UIKeyboardWillShowNotification
                                                  object:nil];

    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:UIKeyboardWillHideNotification
                                                  object:nil];
}

-(void)keyboardWillShow:(NSNotification *)note
{
    /*
     Would have used:
     CGRect rectStart = [note.userInfo[UIKeyboardFrameBeginUserInfoKey] CGRectValue];
     CGRect rectEnd = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];

     Reason for not using:
     The above two keys are not being used although, ideally, they should have been
     since they seem to be buggy when app is in landscape mode

     Resolution:
     Using the deprecated UIKeyboardBoundsUserInfoKey since it works more efficiently
     */

    CGRect rectStart_PROPER = [note.userInfo[UIKeyboardBoundsUserInfoKey] CGRectValue];
    rectStart_PROPER.origin.y = self.view.frame.size.height;

    UIView *vwUnderlay = [self.view viewWithTag:8080];
    if (vwUnderlay) {
        [vwUnderlay removeFromSuperview];
    }

    vwUnderlay = [[UIView alloc] init];
    [vwUnderlay setFrame:rectStart_PROPER];
    [vwUnderlay setBackgroundColor:[UIColor orangeColor]];
    [vwUnderlay setTag:8080];
    [self.view addSubview:vwUnderlay];

    [UIView animateWithDuration:[note.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue]
                          delay:0
                        options:[note.userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue] << 16
                     animations:^{
                         [vwUnderlay setFrame:CGRectOffset(vwUnderlay.frame, 0, -vwUnderlay.frame.size.height)];
                     }
                     completion:nil];
}

-(void)keyboardWillHide:(NSNotification *)note
{
    UIView *vwUnderlay = [self.view viewWithTag:8080];

    [UIView animateWithDuration:[note.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue]
                          delay:0
                        options:[note.userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue] << 16
                     animations:^{
                         [vwUnderlay setFrame:CGRectOffset(vwUnderlay.frame, 0, vwUnderlay.frame.size.height)];
                     }
                     completion:^(BOOL finished){
                         [vwUnderlay removeFromSuperview];
                     }];
}

Answer 2

Apple不允许任何人修改默认键盘。如果您打算使用iOS 7，那么您将不得不处理半透明键盘。

我能想到的另一种方法是设计自己的键盘，但这是一个繁琐的过程。

Answer 3

我今天也在研究同样的事情，我发现了一个简单的解决方法（尽管还不确定它有多可靠）。

为了工作，我为键盘控件（inputAccessoryView和UITextView）设置了UITextField。在我设置为UIView的{{1}}课程中，我添加了以下内容：

inputAccessoryView

-(void)layoutSubviews{ [super layoutSubviews]; frame = _lKeyboardBackground.frame; frame.origin.y = [self convertPoint:self.frame.origin toView:self.superview].y+self.frame.size.height; frame.size.width = self.bounds.size.width; frame.origin.x = 0; frame.size.height = 500; _lKeyboardBackground.frame = frame; [self refreshKeyboardBackground]; } -(void)didMoveToSuperview{ [super didMoveToSuperview]; if (self.superview) { [self.superview.layer insertSublayer:_lKeyboardBackground atIndex:lMagicLayerIndex]; } else { [_lKeyboardBackground removeFromSuperlayer]; } } -(void)setFrame:(CGRect)frame{ [super setFrame:frame]; [self refreshKeyboardBackground]; // setFrame: is called when keyboard changes (e.g: to a custom input view) } -(void)refreshKeyboardBackground{ if (_lKeyboardBackground.superlayer) { CALayer *parent = _lKeyboardBackground.superlayer; [_lKeyboardBackground removeFromSuperlayer]; [parent insertSublayer:_lKeyboardBackground atIndex:lMagicLayerIndex]; } }是我在init方法中设置的_lKeyboardBackground：

CALayer

这理论上应该通过Apple的批准，但我从未测试过。还有很多变化，这在以后的版本或其他一些情况下都不会起作用（例如当iPad上有分离式键盘时）

我使用的

_lKeyboardBackground = [CALayer layer]; _lKeyboardBackground.backgroundColor = [[UIColor redColor] CGColor]; //or some less annoying color是1，它给出了绝对颜色请注意，仍然可以在击键时注意到模糊。

Answer 4

使用键盘通知显示/隐藏键盘后面的自定义黑色视图（如果使用白色键盘，则显示白色），并且不再显示透明度。

有没有办法在iOS 7中禁用键盘上的透明度？

4 个答案: