Change cancel button UIImagePicker.m

-(void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    for (UIView *v in viewController.view.subviews)
    {
        NSLog(@"%@",[v class]);
        if ([v isKindOfClass:[NSClassFromString(@"CMKBottomBar") class]])
        {
            SEL se = NSSelectorFromString(@"cancelButton");
            
//            method
            if ([v respondsToSelector:se])
            {
                UIButton *cancelButton =  [v performSelector:se];
                [cancelButton setTitle:@"New title" forState:UIControlStateNormal];
            }
            
        }
    }
}