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我正在尝试重用包含在 main_layout.xml 中的 xml 文件。在我的活动代码中，我检查变量“positionType”，并根据该变量运行不同的代码。

PositionType.java

public enum PositionType {
    play_top, grow_top, love_top
}

main_layout.xml

<layout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools">


    <data>
        <import type="com.xxx.models.PositionType"/>
        <variable name="positionType"  type="com.xxx.models.PositionType"/>
    </data>

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        >

            <include
                android:id="@+id/circle_view_play_top"
                app:positionType="${PositionType.play_top}"
                layout="@layout/include_circle"
                />

[...]

include_circle.xml

<layout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <data>
        <variable name="positionTypeStr" type="com.xxx.models.PositionType"/>
    </data>

    <merge>
        <com.xxx.components.DeformedCircleView
            app:positionTypeStr="@{positionTypeStr}"
            android:clickable="true"
            android:layout_width="@dimen/home_small_circle_view"
            android:layout_height="@dimen/home_small_circle_view"/>
    </merge>

</layout>

变形圆视图.xml

[...]

protected PositionType positionType;

public DeformedCircleView(Context context, AttributeSet attrs) {
    super(context, attrs);
    //I should receive here the PositionType.play_top (not sure how!) or in the setter
}

public PositionType getPositionType() {
    return this.positionType;
}

public void setPositionType(PositionType positionType) { 
    //I should receive here the PositionType.play_top or in the constructor
    this.positionType = positionType;
}



[...]

问题是我从未在我的 DeformedCircleView 构造函数或 setPositionType 设置器中收到值 PositionType.play_top（我从 main_layout.xml 发送）。我做错了什么？

顺便说一句，您是否知道如何将 main_layout.xml 中的其他参数传递给 include_circle.xml，例如 @id 和 layout_with/height 资源？

提前致谢。

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