缺少PercentRelativeLayout百分比值的XML资源类型？

Question

似乎新的百分比支持库已发布,但不允许在维度xml文件中引用百分比值.

也就是说,而不是:

 <android.support.percent.PercentRelativeLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:app="http://schemas.android.com/apk/res-auto"
         android:layout_width="match_parent"
         android:layout_height="match_parent"/>
     <ImageView
         app:layout_widthPercent="50%"
         app:layout_heightPercent="50%"
         app:layout_marginTopPercent="25%"
         app:layout_marginLeftPercent="25%"/>
 </android.support.percent.PercentFrameLayout/>

能够编写类似的代码:

 <android.support.percent.PercentRelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"/>
 <ImageView
     app:layout_widthPercent="@percent/myWidthPercent"
     app:layout_heightPercent="@percent/my/HeightPercent"
     app:layout_marginTopPercent="@percent/myMarginTophPercent"
     app:layout_marginLeftPercent="@percent/myMarginLeftPercent"/>

其中myWidthPercent在资源文件中定义.

我错了(我是否错过了另一个名字)或者是我们可以发送给谷歌的功能请求？

Answer 1

使用分数而不是百分比

<resources>
    <fraction name="myWidthPercent">50%</fraction>
...
</resources>

并参考它

<ImageView
    app:layout_widthPercent="@fraction/myWidthPercent"
    app:layout_heightPercent="@fraction/my/HeightPercent"
    app:layout_marginTopPercent="@fraction/myMarginTophPercent"
    app:layout_marginLeftPercent="@fraction/myMarginLeftPercent"/>