//监听当键盘将要出现时
[[NSNotificationCenter defaultCenter] addObserver:selfselector:@selector(keyboardWillShow:)name:UIKeyboardWillShowNotificationobject:nil];
//监听当键将要退出时
[[NSNotificationCenter defaultCenter] addObserver:selfselector:@selector(keyboardWillHide:)name:UIKeyboardWillHideNotificationobject:nil];
//当键盘出现
- (void)keyboardWillShow:(NSNotification *)notification{
//获取键盘的高度NSDictionary *userInfo = [notification userInfo];
NSValue *value = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyboardRect = [value CGRectValue];int height = keyboardRect.size.height;
}
//当键退出
- (void)keyboardWillHide:(NSNotification *)notification{
//获取键盘的高度NSDictionary *userInfo = [notification userInfo];
NSValue *value = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyboardRect = [value CGRectValue];
int height = keyboardRect.size.height;
}
