-[TPKeyboardAvoidingScrollView keyboardWillHide：]：消息发送到ios中的已释放实例？

Question

在我的xcode项目中导入TPKeyboardAvoidingScrollView.h和.m文件，并在项目的所有类中将该TPkeyboard用于UIScrollview

 TPKeyboardAvoidingScrollView *scrollView = [[TPKeyboardAvoidingScrollView alloc] init];

该应用正在终止并将错误显示为

-[TPKeyboardAvoidingScrollView keyboardWillHide:]: message sent to deallocated
instance.

谁能给我一些信息。

提前致谢。 TPKeyboardAvoidingScrollView.m中的 KeyboardWillHide函数：

- (void)keyboardWillHide:(NSNotification*)notification {
    _keyboardRect = CGRectZero;
    _keyboardVisible = NO;

    // Restore dimensions to prior size
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationCurve:[[[notification userInfo] objectForKey:UIKeyboardAnimationCurveUserInfoKey] intValue]];
    [UIView setAnimationDuration:[[[notification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] floatValue]];

    self.contentInset = _priorInset;
    self.contentOffset = CGPointMake(self.contentOffset.x, 0);
    [self setScrollIndicatorInsets:self.contentInset];
    _priorInsetSaved = NO;
    [UIView commitAnimations];

}