iOS17+/macOS14+下隐藏步进按钮后自动重复行为未终止问题求助

我有一个启用了自动重复功能的步进按钮，嵌套在会根据数值阈值动态隐藏的上层视图中。核心问题：当视图因数值达到阈值被隐藏后，按钮的自动重复行为并未终止。点击「Reset Count」按钮恢复视图显示时，会看到计数持续减少直至再次触发隐藏条件。

该问题仅在iOS 17+和macOS 14+系统中出现，按钮已通过buttonRepeatBehavior(.enabled)开启自动重复，且已向苹果提交反馈（编号FB15477204）。

相关代码示例 #

步进按钮实现 #

fileprivate func stepperLabel(isDown: Bool) -> some View {
    if isDown {
        Text("-")
        .font(.title2)
        .foregroundColor(.primary)
        .frame(maxWidth: .infinity, minHeight: 40, maxHeight: .infinity, alignment: .leading)
        .padding(.leading, 16)
    } else {
        Text("+")
        .font(.title2)
        .foregroundColor(.primary)
        .frame(maxWidth: .infinity, minHeight: 40, maxHeight: .infinity, alignment: .trailing)
        .padding(.trailing, 16)
    }
}

struct StepperButtonView: View {
    let isDown: Bool
    let action: ()->Void
    
    var body: some View {
        Button(action: action) {
            stepperLabel(isDown: isDown)
        }
        .buttonStyle(.plain)
        .buttonRepeatBehavior(.enabled)
    }
}

上层整合控件 #

struct StepperNumView<T: Numeric & Comparable>: View {
    @Binding var value: T
    let step: T    
    let zeroBased = T.self == UInt.self

    var body: some View {
        VStack {
            HStack(spacing: 0) {
                StepperButtonView(isDown: true) {
                    if zeroBased {
                        if value == 0 {
// 控制台会持续输出该日志，恢复视图后计数会继续减少直至消失
                            print("skipping adjustment from repeating button")
                        } else {
                            value = max(0, value-step) 
                        }
                    } else {
                        value -= step
                    }
                }
                .disabled(zeroBased && value == 0)
                // 省略其余实现代码
            }
        }
    }
}

父视图控制逻辑 #

struct ContentView: View {
    @State var count: UInt = 10

    var body: some View {
        VStack {
            Button("Reset Count") {
                count = 10
            }
            .buttonStyle(.borderedProminent)
            Spacer()
            if count > 0 {
                Text("Button vanishes when hits zero, holding down on\n+/- to repeat should trigger weird things")
                Spacer()
                StepperNumView<Int>(title: "Count, tap centre to edit", value: $count, step: 1)
                    .padding(.horizontal)
            } else {
                Text("Button vanished with zero count")
            }
        }
    }
}

临时规避方案 #

由于这是iOS 17+/macOS 14+的系统框架bug，可通过以下方式临时解决：

• 在视图即将隐藏的onDisappear回调中，手动重置相关状态，或禁用按钮的重复行为
• 在数值达到阈值时，先禁用步进按钮的自动重复，再触发视图隐藏逻辑

内容的提问来源于stack exchange，提问作者Andy Dent