Programmatically created labels and images don't show on screen
问题 I have the following app, that's like a chat, so I'm programmatically creating some labels, images and buttons. The problem is that the ones that I'm adding at startup do show and the ones that I'm adding afterwards don't. It's like the view needs refreshing or something. If I call the same drawing function from an IBAction set to a button...it displays the content.. if it comes from the thread event that looks for new events and notifies the class through: [[NSNotificationCenter