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在 SwiftUI (tvOS) 中获取按钮的 onFocusChange 回调
The onFocusChange关闭于focusable onFocusChange 修饰符允许我在子视图聚焦时为父视图设置属性 如下所示 struct ContentView View State var text String var
SwiftUI
Focus
tvos
focusengine