UIKeyboardWillShowNotification与ios 11 beta 7有关 [英] UIKeyboardWillShowNotification issues with ios 11 beta 7

问题描述

在iOS 11 beta 7上测试我的应用程序 - 如果我的UIViewController，键盘似乎没有推高内容。

Testing my app on iOS 11 beta 7 - it seems like the keyboard doesn't push up the content if my UIViewController.

代码如下（从iOS7开始工作）：

The code looks like this (working since iOS7):

- (void)handleNotification:(NSNotification*)notification {
if (notification.name == UIKeyboardWillShowNotification) {
    CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
    nextButtonALBottomDistance.constant = keyboardSize.height + initialPhoneBottomDistance;
    codeBottomViewALBottomDistance.constant = keyboardSize.height + initialCodeBottomDistance;
    double animationDuration = [[[notification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
    [UIView animateWithDuration:animationDuration animations:^{
        [self.view layoutIfNeeded];
    }];
}
else if (notification.name == UIKeyboardWillHideNotification) {
    nextButtonALBottomDistance.constant = initialPhoneBottomDistance;
    codeBottomViewALBottomDistance.constant = initialCodeBottomDistance;
    double animationDuration = [[[notification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
    [UIView animateWithDuration:animationDuration animations:^{
        [self.view layoutIfNeeded];
    }];
}

}

有趣的是 - 当我按下主页按钮（最小化应用程序）并重新打开它（没有杀死它）时 - 布局是固定的。

Interesting enough - when I press the home button (minimizing the app) and reopening it (without killing it) - the layout is fixed.

这似乎是iOS 11测试版的错误，但到目前为止我找不到任何引用。

It seems like an iOS 11 beta bug, but I couldn't find any reference to it so far.

很高兴知道其他人是否有这个问题。

Happy to know if someone else is having this issue.

推荐答案

使用 UIKeyboardFrameEndUserInfoKey ，因为该键用于包含CGRect的NSValue对象，该CGRect在屏幕坐标中标识键盘的结束帧。 不使用UIKeyboardFrameBeginUserInfoKey 。

Use UIKeyboardFrameEndUserInfoKey because that key is for the NSValue object containing a CGRect that identifies an end frame of the keyboard in screen coordinates. Do not use UIKeyboardFrameBeginUserInfoKey.

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