diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 69f1747..0cdf5e1 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -821,6 +821,17 @@
     static boolean sTextureViewIgnoresDrawableSetters = false;
 
     /**
+     * Prior to N, some ViewGroups would not convert LayoutParams properly even though both extend
+     * MarginLayoutParams. For instance, converting LinearLayout.LayoutParams to
+     * RelativeLayout.LayoutParams would lose margin information. This is fixed on N but target API
+     * check is implemented for backwards compatibility.
+     *
+     * {@hide}
+     */
+    protected static boolean sPreserveMarginParamsInLayoutParamConversion;
+
+
+    /**
      * This view does not want keystrokes. Use with TAKES_FOCUS_MASK when
      * calling setFlags.
      */
@@ -4052,6 +4063,10 @@
             // On N+, we throw, but that breaks compatibility with apps that use these methods.
             sTextureViewIgnoresDrawableSetters = targetSdkVersion <= M;
 
+            // Prior to N, we would drop margins in LayoutParam conversions. The fix triggers bugs
+            // in apps so we target check it to avoid breaking existing apps.
+            sPreserveMarginParamsInLayoutParamConversion = targetSdkVersion >= N;
+
             sCompatibilityDone = true;
         }
     }
diff --git a/core/java/android/widget/FrameLayout.java b/core/java/android/widget/FrameLayout.java
index 029313c..b8c74d8 100644
--- a/core/java/android/widget/FrameLayout.java
+++ b/core/java/android/widget/FrameLayout.java
@@ -382,13 +382,14 @@
 
     @Override
     protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams lp) {
-        if (lp instanceof LayoutParams) {
-            return new LayoutParams((LayoutParams) lp);
-        } else if (lp instanceof MarginLayoutParams) {
-            return new LayoutParams((MarginLayoutParams) lp);
-        } else {
-            return new LayoutParams(lp);
+        if (sPreserveMarginParamsInLayoutParamConversion) {
+            if (lp instanceof LayoutParams) {
+                return new LayoutParams((LayoutParams) lp);
+            } else if (lp instanceof MarginLayoutParams) {
+                return new LayoutParams((MarginLayoutParams) lp);
+            }
         }
+        return new LayoutParams(lp);
     }
 
     @Override
diff --git a/core/java/android/widget/GridLayout.java b/core/java/android/widget/GridLayout.java
index 726586e..af2852c 100644
--- a/core/java/android/widget/GridLayout.java
+++ b/core/java/android/widget/GridLayout.java
@@ -868,13 +868,14 @@
 
     @Override
     protected LayoutParams generateLayoutParams(ViewGroup.LayoutParams lp) {
-        if (lp instanceof LayoutParams) {
-            return new LayoutParams((LayoutParams) lp);
-        } else if (lp instanceof MarginLayoutParams) {
-            return new LayoutParams((MarginLayoutParams) lp);
-        } else {
-            return new LayoutParams(lp);
+        if (sPreserveMarginParamsInLayoutParamConversion) {
+            if (lp instanceof LayoutParams) {
+                return new LayoutParams((LayoutParams) lp);
+            } else if (lp instanceof MarginLayoutParams) {
+                return new LayoutParams((MarginLayoutParams) lp);
+            }
         }
+        return new LayoutParams(lp);
     }
 
     // Draw grid
diff --git a/core/java/android/widget/LinearLayout.java b/core/java/android/widget/LinearLayout.java
index 38d7cd4..f897372 100644
--- a/core/java/android/widget/LinearLayout.java
+++ b/core/java/android/widget/LinearLayout.java
@@ -1844,13 +1844,14 @@
 
     @Override
     protected LayoutParams generateLayoutParams(ViewGroup.LayoutParams lp) {
-        if (lp instanceof LayoutParams) {
-            return new LayoutParams((LayoutParams) lp);
-        } else if (lp instanceof MarginLayoutParams) {
-            return new LayoutParams((MarginLayoutParams) lp);
-        } else {
-            return new LayoutParams(lp);
+        if (sPreserveMarginParamsInLayoutParamConversion) {
+            if (lp instanceof LayoutParams) {
+                return new LayoutParams((LayoutParams) lp);
+            } else if (lp instanceof MarginLayoutParams) {
+                return new LayoutParams((MarginLayoutParams) lp);
+            }
         }
+        return new LayoutParams(lp);
     }
 
 
diff --git a/core/java/android/widget/RelativeLayout.java b/core/java/android/widget/RelativeLayout.java
index 0136542..a189d3c 100644
--- a/core/java/android/widget/RelativeLayout.java
+++ b/core/java/android/widget/RelativeLayout.java
@@ -1104,13 +1104,14 @@
 
     @Override
     protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams lp) {
-        if (lp instanceof LayoutParams) {
-            return new LayoutParams((LayoutParams) lp);
-        } else if (lp instanceof MarginLayoutParams) {
-            return new LayoutParams((MarginLayoutParams) lp);
-        } else {
-            return new LayoutParams(lp);
+        if (sPreserveMarginParamsInLayoutParamConversion) {
+            if (lp instanceof LayoutParams) {
+                return new LayoutParams((LayoutParams) lp);
+            } else if (lp instanceof MarginLayoutParams) {
+                return new LayoutParams((MarginLayoutParams) lp);
+            }
         }
+        return new LayoutParams(lp);
     }
 
     /** @hide */