在android.widget.ImageView上找不到参数类型为int的Android:Layout_Width;属性的设置器

2022-09-03 00:00:00 android android-databinding

app/build.gradle中:

dataBinding {
        enabled = true
}
kapt "com.android.databinding:compiler:3.0.1"

在布局中,我有两个图像。

我只想设置第一张图像的宽度。

以下是XML布局:

<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <data>
        <import type="com.myproject.android.customer.util.GuiUtil" />
    </data>
            <ImageView
            android:id="@+id/imageViewPhoto"
            android:layout_width="@{GuiUtil.getTileWidthDpInScreen(context), default=@dimen/preview_image_height}"
            android:layout_height="@dimen/preview_image_height"/>

            <ImageView
            android:id="@+id/imageViewFavorite"
            android:layout_width="28dp"
            android:layout_height="28dp"/>    

</layout>

以下是适配器的代码:

    @BindingAdapter("layout_width")
    public static void setLayoutWidth(View view, int width) {
        ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
        layoutParams.width = width;
        view.setLayoutParams(layoutParams);
}

方法GuiUtil.getTileWidthDpInScreen

public class GuiUtil {    
    public static int getTileWidthDpInScreen(Context context) {
        // some logic that return int value
   }

但我收到以下错误:

:app:transformDataBindingWithDataBindingMergeArtifactsForDebug UP-TO-DATE
:app:kaptDebugKotlin
e: java.lang.IllegalStateException: failed to analyze: android.databinding.tool.util.LoggedErrorException: Found data binding errors.
****/ data binding error ****msg:Cannot find the setter for attribute 'android:layout_width' with parameter type int on android.widget.ImageView.
file:myprojectappsrcmaineslayoutpreview_offer_item.xml
loc:26:36 - 26:74
**** data binding error ****    
    at org.jetbrains.kotlin.analyzer.AnalysisResult.throwIfError(AnalysisResult.kt:57)

解决方案

遗憾的是,该语法默认不支持Android数据绑定。您可以改用@BindingAdapter,以下是完整代码(Kotlin):

    @BindingAdapter("layoutWidth")
fun setLayoutWidth(layout: ViewGroup, dimen: Float) {
    val layoutParams = layout.layoutParams
    layoutParams.width = dimen.toInt()
    layout.layoutParams = layoutParams
}

在使用"app:layoutWidth"XML布局文件中,您甚至可以将其与其他语法一起使用,例如:

android:layout_width="match_parent"   //required
android:layout_height="@dimen/dp_102"   //required
app:layoutWidth="@{variable.predict ? @dimen/dp_86 : @dimen/dp_102}"            

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