Question

I have created by custom UIButton for iPad application.

Now for specific reasons, I want to hide those buttons. To do that I am using following code:

NSMutableArray *viewArray = [[NSMutableArray alloc] init];

    // Get all the windows
    for (UIWindow *window in [[UIApplication sharedApplication] windows])
    {
      // check for main screen
      if (![window respondsToSelector:@selector(screen)] ||
          [window screen] == [UIScreen mainScreen])
      {

        // check for all the subviews available in window
        for (UIView * view in [window subviews]) {

          // check whether it supports this method
          if ([view respondsToSelector:@selector(isKindOfClass:)]) {

            // type cast to button
            //          UIButton *btn = (UIButton *)view;

            // if its type of my custom button class
            if ([[view class] isKindOfClass:[DINNextLTProBoldButton class]]) {

              // hide view and add to array
              [view setHidden:YES];
              [viewArray addObject:view];
            }
          }
        }
      }
    }

But I am not able to get my custom buttons in this array. It stays empty only even thought the view which is being appeared on window/screen have those buttons.

Where I am going wrong? Please guide me.

Answer 1

try this (untested, but it gives the basic idea)

- (void)hideViewOfClass:(Class)clazz inHeirarchyOfView:(UIView *)view
{
    for (UIView *subview in [view subviews])
    {
        if ([subview isKindOfClass:clazz])
            subview.hidden = YES;
        else 
            [self hideViewOfClass:clazz inHeirarchyOfView:subview];
    }
}

call this function at first like:

for (UIWindow *window in [[UIApplication sharedApplication] windows])
    [self hideViewOfClass:[DINNextLTProBoldButton class] inHeirarchyOfView:window];