无法根据成员推断上下文基础。

发布于 01-21 01:05 字数 792 浏览 5 评论 0原文

我正在尝试按照这个有关构建 Apple Watch 应用的截屏视频。我已将 Xcode 更新到 13.3，但收到的错误并未出现在截屏视频中。

无法推断引用成员“fractionLength”的上下文基数

无法推断引用成员“数字”的上下文基础

调用中的额外参数“numberFormat”

Text(
    Measurement(
        value: 47,
        unit: UnitEnergy.kilocalories
    ).formatted(
        .measurement(
            width: .abbreviated,
            usage: .workout,
            numberFormat: .numeric(precision: .fractionLength(0))
            )
        )
    )

原文

I'm trying to follow this screencast on building an app for Apple Watch. I've updated Xcode to 13.3, but I'm getting an error that doesn't appear in the screencast.

Cannot infer contextual base in reference to member 'fractionLength'

Cannot infer contextual base in reference to member 'numeric'

Extra argument 'numberFormat' in call

Text(
    Measurement(
        value: 47,
        unit: UnitEnergy.kilocalories
    ).formatted(
        .measurement(
            width: .abbreviated,
            usage: .workout,
            numberFormat: .numeric(precision: .fractionLength(0))
            )
        )
    )

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背叛残局2025-01-28 01:05:53

也许情况发生了变化。您可以尝试一下：

Text(Measurement( value: 47, unit: UnitEnergy.kilocalories)
        .formatted(
            .measurement(
                width: .abbreviated,
                usage: .workout,
                numberFormatStyle: .number.precision(.fractionLength(0))
            )
        )
)

maybe things have changed. You could try this instead:

Text(Measurement( value: 47, unit: UnitEnergy.kilocalories)
        .formatted(
            .measurement(
                width: .abbreviated,
                usage: .workout,
                numberFormatStyle: .number.precision(.fractionLength(0))
            )
        )
)

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