percent/tests/res/layout/percent_relative_layout_rtl.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2016 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<!-- Test layout for testing RTL-aware attributes on PercentRelativeLayout. Note that
     we do not need to use layout_marginStartPercent *and* layout_marginLeftPercent
     on the same child view to make it work correctly on different platform versions,
     while we do have to use layout_alignParentEnd *and* layout_alignParentRight (as
     the core RelativeLayout needs the old attribute on older pre-v17 platform versions).
-->
<android.support.percent.PercentRelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- This child is anchored along the top edge of the parent, testing percent-based
         start margin, top margin and width, as well as the aspect ratio. -->
    <View
        android:id="@+id/child_top"
        android:layout_alignParentTop="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentLeft="true"
        app:layout_widthPercent="50%"
        app:layout_aspectRatio="2000%"
        app:layout_marginStartPercent="20%"
        app:layout_marginTopPercent="5%"
        android:background="#5690E0" />

    <!-- This child is anchored along the start edge of the parent, testing percent-based
         start margin, top margin and height, as well as the aspect ratio. -->
    <View
        android:id="@+id/child_start"
        android:layout_alignParentStart="true"
        android:layout_alignParentLeft="true"
        app:layout_heightPercent="50%"
        app:layout_aspectRatio="5%"
        app:layout_marginStartPercent="5%"
        app:layout_marginTopPercent="20%"
        android:background="#902030" />

    <!-- This child is anchored along the bottom edge of the parent, testing percent-based
         end margin, bottom margin and width, as well as the aspect ratio. -->
    <View
        android:id="@+id/child_bottom"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        app:layout_widthPercent="40%"
        app:layout_aspectRatio="2000%"
        app:layout_marginEndPercent="20%"
        app:layout_marginBottomPercent="5%"
        android:background="#A0B040" />

    <!-- This child is anchored along the end edge of the parent, testing percent-based
         end margin, bottom margin and height, as well as the aspect ratio. -->
    <View
        android:id="@+id/child_end"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        app:layout_heightPercent="40%"
        app:layout_aspectRatio="5%"
        app:layout_marginEndPercent="5%"
        app:layout_marginBottomPercent="20%"
        android:background="#20C0A0" />

    <!-- This child is anchored to be in the "center" of the parent by anchoring it with
         percent-based margins relatively to its edge-aligned siblings. -->
    <View
        android:id="@+id/child_center"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/child_top"
        android:layout_toEndOf="@+id/child_start"
        android:layout_toRightOf="@+id/child_start"
        android:layout_toStartOf="@+id/child_end"
        android:layout_toLeftOf="@+id/child_end"
        android:layout_above="@+id/child_bottom"
        app:layout_marginPercent="10%"
        android:background="#F07020" />

</android.support.percent.PercentRelativeLayout>