NetEase Cloud Music Tech Team

Oct 14, 2020 · Mobile Development

Understanding UIButton Control States and Custom State Extensions in iOS

The article explains UIButton’s built‑in UIControlState bitmask, shows how to set titles and colors for normal, highlighted, disabled and selected states, demonstrates combining states, and details creating custom application‑specific states (e.g., follow, mutual, loading) by extending the state enum and overriding state‑related methods.