2020-07-13 ios 解决隐藏导航页面自定义键盘上方vi

- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    [IQKeyboardManager sharedManager].enable = NO;
    [IQKeyboardManager sharedManager].enableAutoToolbar = NO;
}
-(void)viewWillDisappear:(BOOL)animated
{
    [IQKeyboardManager sharedManager].enable = YES;
    [IQKeyboardManager sharedManager].enableAutoToolbar = YES;
}