converted layouts to CoordinatorLayout

android/app/src/main/java/com/reactnativenavigation/activities/BottomTabActivity.java

 import android.graphics.drawable.Drawable;
 import android.os.AsyncTask;
 import android.os.Bundle;
-import android.view.Menu;
+import android.support.design.widget.CoordinatorLayout;
 import android.view.View;
-import android.widget.FrameLayout;
 
 import com.aurelhubert.ahbottomnavigation.AHBottomNavigation;
 import com.aurelhubert.ahbottomnavigation.AHBottomNavigationItem;
     private static boolean DEFAULT_TAB_INACTIVE_TITLES = true;
 
     private AHBottomNavigation mBottomNavigation;
-    private FrameLayout mContentFrame;
+    private CoordinatorLayout mContentFrame;
     private ArrayList<ScreenStack> mScreenStacks;
     private int mCurrentStackPosition = -1;
 
         setContentView(R.layout.bottom_tab_activity);
         mToolbar = (RnnToolBar) findViewById(R.id.toolbar);
         mBottomNavigation = (AHBottomNavigation) findViewById(R.id.bottom_tab_bar);
-        mContentFrame = (FrameLayout) findViewById(R.id.contentFrame);
+        mContentFrame = (CoordinatorLayout) findViewById(R.id.contentFrame);
 
         final ArrayList<Screen> screens = (ArrayList<Screen>) getIntent().getSerializableExtra(EXTRA_SCREENS);
         final Drawer drawer = (Drawer) getIntent().getSerializableExtra(DRAWER_PARAMS);

android/app/src/main/java/com/reactnativenavigation/activities/SingleScreenActivity.java

 package com.reactnativenavigation.activities;
 
-import android.widget.FrameLayout;
+import android.support.design.widget.CoordinatorLayout;
 
 import com.reactnativenavigation.R;
 import com.reactnativenavigation.core.RctManager;
         setupDrawer(screen, drawer, R.id.drawerFrame, R.id.drawerLayout);
 
         mScreenStack = new ScreenStack(this);
-        FrameLayout contentFrame = (FrameLayout) findViewById(R.id.contentFrame);
+        CoordinatorLayout contentFrame = (CoordinatorLayout) findViewById(R.id.contentFrame);
         assert contentFrame != null;
         contentFrame.addView(mScreenStack);
         mScreenStack.push(screen);

android/app/src/main/java/com/reactnativenavigation/views/ScreenStack.java

 
 import android.animation.LayoutTransition;
 import android.content.Context;
+import android.support.design.widget.CoordinatorLayout;
 import android.util.AttributeSet;
 import android.view.ViewGroup;
-import android.widget.FrameLayout;
 
 import com.facebook.react.ReactInstanceManager;
 import com.reactnativenavigation.activities.BaseReactActivity;
 
 import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
 
-public class ScreenStack extends FrameLayout {
+public class ScreenStack extends android.support.design.widget.CoordinatorLayout {
 
     private static final int DISAPPEAR_ANIMATION_DELAY = 200;
 
     public void addToScreen(ViewGroup parent) {
         mStack.peek().view.onReAddToScreen();
 
-        parent.addView(this, new FrameLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT));
+        parent.addView(this, new CoordinatorLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT));
     }
 
     public void removeAllReactViews() {

android/app/src/main/res/layout/bottom_tab_activity.xml

         android:layout_height="0dp"
         android:layout_weight="1">
 
-        <FrameLayout
+        <android.support.design.widget.CoordinatorLayout
             android:id="@+id/contentFrame"
             android:layout_width="match_parent"
             android:layout_height="0dp"

android/app/src/main/res/layout/single_screen_activity.xml

         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
-        <FrameLayout
+        <android.support.design.widget.CoordinatorLayout
             android:id="@+id/contentFrame"
             android:layout_width="match_parent"
             android:layout_height="match_parent" />