视图绑定错误:与属性android:visibility不兼容

问题描述

我正在尝试使用数据绑定设置visibility和ImageView的src.我不知道为什么会出现此错误，而且我确实相信这在某一时刻起作用，但是我可能是错的.

I'm trying to set the visibility and the src of an ImageView using data binding. I don't know why this error is showing up, and I truely believe that this was working at one point, but I could be wrong.

布局:

<data>
    <import type="android.view.View" />
    <import type="android.support.v4.content.ContextCompat" />
    <variable
        name="viewData"
        type="com.myapp.SomethingViewData" />
</data>
    ...
        <ImageView
            ...
            android:src="@{ContextCompat.getDrawable(context, viewData.getIconResource())}"
            android:visibility="@{viewData.getIconVisibility() ? View.VISIBLE : View.GONE}" />

数据类

@Parcelize
data class SomethingViewData(val iconResource: Int,
                             val iconVisibility: Boolean) : Parcelable

错误消息:

error: '@{ContextCompat.getDrawable(context, viewData.getIconResource())}' is incompatible with attribute android:src (attr) reference|color.
error: '@{viewData.getIconVisibility() ? View.VISIBLE : View.GONE}' is incompatible with attribute android:visibility (attr) enum [gone=2, invisible=1, visible=0].

这是什么意思，我该如何解决?

What does this mean and how do I fix it?

推荐答案

哇，所以dataBinding { enabled = true }从我的应用程序模块build.gradle文件中删除了.加回去，一切都像以前一样工作.

Wow, so, somehow dataBinding { enabled = true } was removed from my app modules build.gradle file. Adding it back and everything worked like before.

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