Question

当显示键盘时，我有一个需要调整位置的UI。

以下用于检测键盘的显示时间：

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

注意：我已尝试过UIKeyboardWillShowNotification和UIKeyboardDidShowNotification

- (void)keyboardWillShow:(NSNotification *)n {
    if (isKeyboardShowing)
    return;

NSDictionary* userInfo = [n userInfo];

// get the size of the keyboard
CGSize keyboardSize = [[userInfo objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;


// Animate keyboard shift
[self.view layoutIfNeeded];

[UIView animateWithDuration:0.2f animations:^{
    // some animation here
} completion:^(BOOL finished) {
    if (finished)
        isKeyboardShowing = YES;
}];

对于自定义键盘，键盘大小返回{320,0}。由于键盘现在可以具有不同的高度，因此在呈现键盘时我无法使用静态值来更改UI。

这是ios8的问题吗？还有其他方法可以动态获取键盘高度吗？

编辑：这是userInfo Dict：

{name = UIKeyboardDidShowNotification; userInfo = {
    UIKeyboardAnimationCurveUserInfoKey = 7;
    UIKeyboardAnimationDurationUserInfoKey = "0.25";
    UIKeyboardBoundsUserInfoKey = "NSRect: {{0, 0}, {320, 0}}";
    UIKeyboardCenterBeginUserInfoKey = "NSPoint: {160, 568}";
    UIKeyboardCenterEndUserInfoKey = "NSPoint: {160, 568}";
    UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 568}, {320, 0}}";
    UIKeyboardFrameEndUserInfoKey = "NSRect: {{0, 568}, {320, 0}}";
}}

提前致谢。

Answer 1

使用

CGSize keyboardSize = [[userInfo objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size;

获取键盘的实际尺寸

iOS8 UIKeyboardWillShowNotification第三方键盘高度

1 个答案: