An attempt at reversing the stack ordering of a simple FrameLayout.

activity_main.xml

<com.alexfu.reverseframelayout.ReversedFrameLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent">

  <TextView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/holo_purple"/>

  <TextView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/holo_red_dark"/>

</com.alexfu.reverseframelayout.ReversedFrameLayout>

ReversedFrameLayout.java

/*
 * Copyright (C) 2006 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.
 */

package com.alexfu.reverseframelayout;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;

public class ReversedFrameLayout extends ViewGroup {

  public ReversedFrameLayout(Context context) {
    super(context);
  }

  public ReversedFrameLayout(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  public ReversedFrameLayout(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
  }

  @Override
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int count = getChildCount();

    // Measurement will ultimately be computing these values.
    int maxHeight = 0;
    int maxWidth = 0;
    int childState = 0;

    // Iterate through all children, measuring them and computing our dimensions
    // from their size.
    for (int i = count-1; i > -1; i--) {
      final View child = getChildAt(i);
      if (child.getVisibility() != GONE) {
        // Measure the child.
        measureChild(child, widthMeasureSpec, heightMeasureSpec);

        // Update our size information based on the layout params.  Children
        // that asked to be positioned on the left or right go in those gutters.
        maxWidth = Math.max(maxWidth, child.getMeasuredWidth());
        maxHeight = Math.max(maxHeight, child.getMeasuredHeight());
        childState = combineMeasuredStates(childState, child.getMeasuredState());
      }
    }

    // Check against our minimum height and width
    maxHeight = Math.max(maxHeight, getSuggestedMinimumHeight());
    maxWidth = Math.max(maxWidth, getSuggestedMinimumWidth());

    // Report our final dimensions.
    setMeasuredDimension(resolveSizeAndState(maxWidth, widthMeasureSpec, childState),
        resolveSizeAndState(maxHeight, heightMeasureSpec, childState << MEASURED_HEIGHT_STATE_SHIFT));
  }

  @Override
  protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
    final int count = getChildCount();

    for(int i = count-1; i > -1; i--) {
      final View child = getChildAt(i);
      final int width = child.getMeasuredWidth();
      final int height = child.getMeasuredHeight();

      if(child.getVisibility() != GONE) {
        child.layout(left, top, left + width, top + height);
      }
    }
  }
}