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当我使用 SwipeRefreshLayout 刷新时，我不想隐藏 RecyclerView。结果，我在 ViewState 类中引入了 Reloading 状态：

sealed class Resource<out T> {
    class Loading<out T> : Resource<T>()
    class Reloading<out T> : Resource<T>()
    data class Success<out T>(val data: T?) : Resource<T>()
    data class Failure<out T>(val cause: String?) : Resource<T>()
}

这是我的绑定适配器：

    @JvmStatic
    @BindingAdapter("refreshing")
    fun setSwipeRefreshLayout(view: SwipeRefreshLayout, resource: Resource<*>?) {
        view.isRefreshing = resource is Resource.Loading || resource is Resource.Reloading
        view.isEnabled = resource !is Resource.Failure
    }

    @JvmStatic
    @BindingAdapter("showError")
    fun showError(view: View, resource: Resource<*>?) {
        view.visibility = if (resource is Resource.Failure) View.VISIBLE else View.GONE
    }

    @JvmStatic
    @BindingAdapter("showData")
    fun showData(view: RecyclerView, resource: Resource<*>?) {
        view.visibility = if (resource is Resource.Reloading || resource is Resource.Success)
            View.VISIBLE else View.GONE

    }

是否有任何解决方案来简化 ViewState 类并删除 Reloading 状态（仅使用 Loading 状态）？源代码可以在这里找到：https ://github.com/AliRezaeiii/SavingGoals-Cache

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1 回答 1

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最简单的切断Reloading state布尔指标并将其添加到的方法Loading state：

sealed class Resource<out T> {
    data class Loading<out T>(val isRefreshing: Boolean) : Resource<T>()
    data class Success<out T>(val data: T?) : Resource<T>()
    data class Failure<out T>(val cause: String?) : Resource<T>()
}
于 2020-11-23T14:15:22.433 回答