如何检测iOS 8中键盘的高度是否发生了变化？
[英]How can I detect if the height of the keyboard has changed in iOS 8?
问题描述
On iOS 8, keyboards can be different heights. 
在iOS 8上，键盘可以达到不同的高度。 When the user switches between keyboards, or changes the height of the current keyboard, how can I detect this? 当用户在键盘之间切换或更改当前键盘的高度时，我该如何检测？
1 个解决方案
解决方案1
6 已采纳 2014-09-16 21:02:27
Listen to the UIKeyboardWillChangeFrameNotification notification. 收听UIKeyboardWillChangeFrameNotification通知。
Use UIKeyboardFrameBeginUserInfoKey and UIKeyboardFrameEndUserInfoKey values in the passed userInfo dictionary to retrieve the current and future frame of the keyboard. 在传递的userInfo字典中使用UIKeyboardFrameBeginUserInfoKey和UIKeyboardFrameEndUserInfoKey值来检索键盘的当前和未来帧。
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