removeFromSuperview doesn't work

Question

I need to be able to remove a button from a view and add a different one. My code looks like this:

-(void)UpdatePromoBanner:(NSString*)value{
    [button setTitl         


        

Answer 1

Oscar is right. You have to update the interface on the main thread. Figured I'd add in some code to help.

Replace:

[subView removeFromSuperview];

With:

[subView performSelectorOnMainThread:@selector(removeFromSuperview) withObject:nil waitUntilDone:NO];

And I think you should be good to go without changing anything else.

Answer 2

You cannot update the UI using a secondary thread, whenever your thread is doing UI updates you must call the main thread.

Answer 3

dispatch_async(dispatch_get_main_queue(), ^{
         [subView removeFromSuperview];
});

Remember update UI in main thread :)