diff --git a/android/app/src/main/java/com/reactnativenavigation/controllers/Modal.java b/android/app/src/main/java/com/reactnativenavigation/controllers/Modal.java
index 5e0949c5e1f..4ff1f95f8ed 100644
--- a/android/app/src/main/java/com/reactnativenavigation/controllers/Modal.java
+++ b/android/app/src/main/java/com/reactnativenavigation/controllers/Modal.java
@@ -120,6 +120,7 @@ interface OnModalDismissedListener {
         setAnimation(screenParams);
         setStatusBarStyle(screenParams.styleParams);
         setNavigationBarStyle(screenParams.styleParams);
+        setDrawUnderStatusBar(screenParams.styleParams);
     }
 
     private void setStatusBarStyle(StyleParams styleParams) {
@@ -128,6 +129,12 @@ private void setStatusBarStyle(StyleParams styleParams) {
         StatusBar.setTextColorScheme(window.getDecorView(), styleParams.statusBarTextColorScheme);
     }
 
+    private void setDrawUnderStatusBar(StyleParams styleParams) {
+        Window window = getWindow();
+        if (window == null) return;
+        StatusBar.displayOverScreen(window.getDecorView(), styleParams.drawUnderStatusBar);
+    }
+
     private void setNavigationBarStyle(StyleParams styleParams) {
         NavigationBar.setColor(getWindow(), styleParams.navigationBarColor);
     }
diff --git a/android/app/src/main/java/com/reactnativenavigation/controllers/NavigationActivity.java b/android/app/src/main/java/com/reactnativenavigation/controllers/NavigationActivity.java
index c646ad75268..341e6eca27a 100644
--- a/android/app/src/main/java/com/reactnativenavigation/controllers/NavigationActivity.java
+++ b/android/app/src/main/java/com/reactnativenavigation/controllers/NavigationActivity.java
@@ -63,7 +63,9 @@ public class NavigationActivity extends AppCompatActivity implements DefaultHard
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        if (!NavigationApplication.instance.getReactGateway().hasStartedCreatingContext()) {
+         if (!NavigationApplication.instance.getReactGateway().hasStartedCreatingContext() || 
+                getIntent() == null || 
+                getIntent().getBundleExtra("ACTIVITY_PARAMS_BUNDLE") == null) {
             SplashActivity.start(this);
             finish();
             return;
diff --git a/android/app/src/main/java/com/reactnativenavigation/params/StyleParams.java b/android/app/src/main/java/com/reactnativenavigation/params/StyleParams.java
index 24337a173c7..8a905b45f95 100644
--- a/android/app/src/main/java/com/reactnativenavigation/params/StyleParams.java
+++ b/android/app/src/main/java/com/reactnativenavigation/params/StyleParams.java
@@ -48,6 +48,11 @@ public String getHexColor() {
         public int getColor(int defaultColor) {
             return hasColor() ? getColor() : defaultColor;
         }
+
+        @Override
+        public String toString() {
+            return this.getHexColor();
+        }
     }
 
     public static class Font {
@@ -84,6 +89,7 @@ public String toString() {
     public StatusBarTextColorScheme statusBarTextColorScheme;
     public Color statusBarColor;
     public boolean statusBarHidden;
+    public boolean drawUnderStatusBar;
     public Color contextualMenuStatusBarColor;
     public Color contextualMenuButtonsColor;
     public Color contextualMenuBackgroundColor;
@@ -119,6 +125,7 @@ public String toString() {
     public Font titleBarButtonFontFamily;
 
     public Color topTabTextColor;
+    public Font topTabTextFontFamily;
     public Color topTabIconColor;
     public Color selectedTopTabTextColor;
     public Color selectedTopTabIconColor;
diff --git a/android/app/src/main/java/com/reactnativenavigation/params/parsers/StyleParamsParser.java b/android/app/src/main/java/com/reactnativenavigation/params/parsers/StyleParamsParser.java
index c4a1eab69c7..1e052ec171b 100644
--- a/android/app/src/main/java/com/reactnativenavigation/params/parsers/StyleParamsParser.java
+++ b/android/app/src/main/java/com/reactnativenavigation/params/parsers/StyleParamsParser.java
@@ -32,6 +32,7 @@ public StyleParams parse() {
         result.statusBarColor = getColor("statusBarColor", getDefaultStatusBarColor());
         result.statusBarHidden = getBoolean("statusBarHidden", getDefaultStatusHidden());
         result.statusBarTextColorScheme = StatusBarTextColorScheme.fromString(params.getString("statusBarTextColorScheme"), getDefaultStatusBarTextColorScheme());
+        result.drawUnderStatusBar = params.getBoolean("drawUnderStatusBar", getDefaultDrawUnderStatusBar());
         result.contextualMenuStatusBarColor = getColor("contextualMenuStatusBarColor", getDefaultContextualMenuStatusBarColor());
         result.contextualMenuButtonsColor = getColor("contextualMenuButtonsColor", getDefaultContextualMenuButtonsColor());
         result.contextualMenuBackgroundColor = getColor("contextualMenuBackgroundColor", getDefaultContextualMenuBackgroundColor());
@@ -70,6 +71,7 @@ public StyleParams parse() {
         result.topTabsHidden = getBoolean("topTabsHidden", getDefaultTopTabsHidden());
 
         result.topTabTextColor = getColor("topTabTextColor", getDefaultTopTabTextColor());
+        result.topTabTextFontFamily = getFont("topTabTextFontFamily", getDefaultTopTabTextFontFamily());
         result.topTabIconColor = getColor("topTabIconColor", getDefaultTopTabIconColor());
         result.selectedTopTabIconColor = getColor("selectedTopTabIconColor", getDefaultSelectedTopTabIconColor());
         result.selectedTopTabTextColor = getColor("selectedTopTabTextColor", getDefaultSelectedTopTabTextColor());
@@ -124,6 +126,7 @@ private StyleParams createDefaultStyleParams() {
         result.titleBarTitleFont = new StyleParams.Font();
         result.titleBarSubtitleFontFamily = new StyleParams.Font();
         result.titleBarButtonFontFamily = new StyleParams.Font();
+        result.topTabTextFontFamily = new StyleParams.Font();
         result.titleBarHeight = -1;
         result.screenAnimationType = "slide-up";
         return result;
@@ -281,6 +284,10 @@ private boolean getDefaultStatusHidden() {
         return AppStyle.appStyle != null && AppStyle.appStyle.statusBarHidden;
     }
 
+    private boolean getDefaultDrawUnderStatusBar() {
+        return AppStyle.appStyle != null && AppStyle.appStyle.drawUnderStatusBar;
+    }
+
     private StyleParams.Font getDefaultBottomTabsFontFamily() {
         return AppStyle.appStyle == null ? new StyleParams.Font() : AppStyle.appStyle.bottomTabFontFamily;
     }
@@ -301,6 +308,10 @@ private StyleParams.Font getDefaultSubtitleFontFamily() {
         return AppStyle.appStyle == null ? new StyleParams.Font() : AppStyle.appStyle.titleBarSubtitleFontFamily;
     }
 
+    private StyleParams.Font getDefaultTopTabTextFontFamily() {
+        return AppStyle.appStyle == null ? new StyleParams.Font() : AppStyle.appStyle.topTabTextFontFamily;
+    }
+
     private StyleParams.Font getDefaultTitleBarButtonFont() {
         return AppStyle.appStyle == null ? new StyleParams.Font() : AppStyle.appStyle.titleBarButtonFontFamily;
     }
diff --git a/android/app/src/main/java/com/reactnativenavigation/screens/Screen.java b/android/app/src/main/java/com/reactnativenavigation/screens/Screen.java
index 0f8b67882fa..010212e6ad6 100644
--- a/android/app/src/main/java/com/reactnativenavigation/screens/Screen.java
+++ b/android/app/src/main/java/com/reactnativenavigation/screens/Screen.java
@@ -62,6 +62,7 @@ public Screen(AppCompatActivity activity, ScreenParams screenParams, LeftButtonO
         createViews();
         EventBus.instance.register(this);
         sharedElements = new SharedElements();
+        setDrawUnderStatusBar(styleParams.drawUnderStatusBar);
     }
 
     public void registerSharedElement(SharedElementTransition toView, String key) {
@@ -106,6 +107,7 @@ public void setStyle() {
         setStatusBarHidden(styleParams.statusBarHidden);
         setStatusBarTextColorScheme(styleParams.statusBarTextColorScheme);
         setNavigationBarColor(styleParams.navigationBarColor);
+        setDrawUnderStatusBar(styleParams.drawUnderStatusBar);
         topBar.setStyle(styleParams);
         if (styleParams.screenBackgroundColor.hasColor()) {
             setBackgroundColor(styleParams.screenBackgroundColor.getColor());
@@ -174,6 +176,10 @@ private void setStatusBarHidden(boolean statusBarHidden) {
         StatusBar.setHidden(((NavigationActivity) activity).getScreenWindow(), statusBarHidden);
     }
 
+    private void setDrawUnderStatusBar(boolean drawUnderStatusBar) {
+        StatusBar.displayOverScreen(this, drawUnderStatusBar);
+    }
+
     private void setStatusBarTextColorScheme(StatusBarTextColorScheme textColorScheme) {
         StatusBar.setTextColorScheme(this, textColorScheme);
     }
diff --git a/android/app/src/main/java/com/reactnativenavigation/utils/StatusBar.java b/android/app/src/main/java/com/reactnativenavigation/utils/StatusBar.java
index d5f3f07096b..af907d44bf4 100644
--- a/android/app/src/main/java/com/reactnativenavigation/utils/StatusBar.java
+++ b/android/app/src/main/java/com/reactnativenavigation/utils/StatusBar.java
@@ -30,6 +30,23 @@ public static void setColor(Window window, StyleParams.Color statusBarColor) {
         }
     }
 
+    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
+    public static void displayOverScreen(View view, boolean shouldDisplay) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) return;
+
+        if(shouldDisplay) {
+            int flags = view.getSystemUiVisibility();
+            flags |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
+            flags |= View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
+            view.setSystemUiVisibility(flags);
+        } else {
+            int flags = view.getSystemUiVisibility();
+            flags &= ~View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
+            flags &= ~View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
+            view.setSystemUiVisibility(flags);
+        }
+    }
+
     @TargetApi(Build.VERSION_CODES.M)
     public static void setTextColorScheme(View view, StatusBarTextColorScheme textColorScheme) {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return;
diff --git a/android/app/src/main/java/com/reactnativenavigation/views/ContentView.java b/android/app/src/main/java/com/reactnativenavigation/views/ContentView.java
index 6d3c7b36e9e..978d7734a2a 100644
--- a/android/app/src/main/java/com/reactnativenavigation/views/ContentView.java
+++ b/android/app/src/main/java/com/reactnativenavigation/views/ContentView.java
@@ -66,9 +66,13 @@ public void unmountReactView() {
 
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
-        int measuredHeight = viewMeasurer.getMeasuredHeight(heightMeasureSpec);
-        setMeasuredDimension(viewMeasurer.getMeasuredWidth(widthMeasureSpec), measuredHeight);
+        int widthSpec = MeasureSpec.makeMeasureSpec(MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.AT_MOST);
+        int heightSpec = MeasureSpec.makeMeasureSpec(MeasureSpec.getSize(heightMeasureSpec), MeasureSpec.AT_MOST);
+
+        super.onMeasure(widthSpec, heightSpec);
+
+        int measuredHeight = viewMeasurer.getMeasuredHeight(heightSpec);
+        setMeasuredDimension(viewMeasurer.getMeasuredWidth(widthSpec), measuredHeight);
     }
 
     @Override
diff --git a/android/app/src/main/java/com/reactnativenavigation/views/TitleBarButton.java b/android/app/src/main/java/com/reactnativenavigation/views/TitleBarButton.java
index 3487a915647..61384948e39 100644
--- a/android/app/src/main/java/com/reactnativenavigation/views/TitleBarButton.java
+++ b/android/app/src/main/java/com/reactnativenavigation/views/TitleBarButton.java
@@ -114,7 +114,7 @@ private void setFont() {
     @NonNull
     private ArrayList<View> findActualTextViewInMenuByLabel() {
         ArrayList<View> outViews = new ArrayList<>();
-        parent.findViewsWithText(outViews, buttonParams.label, View.FIND_VIEWS_WITH_CONTENT_DESCRIPTION);
+        parent.findViewsWithText(outViews, buttonParams.label, View.FIND_VIEWS_WITH_TEXT);
         return outViews;
     }
 
diff --git a/android/app/src/main/java/com/reactnativenavigation/views/TopBar.java b/android/app/src/main/java/com/reactnativenavigation/views/TopBar.java
index 22834bb8c95..dfda98caa99 100644
--- a/android/app/src/main/java/com/reactnativenavigation/views/TopBar.java
+++ b/android/app/src/main/java/com/reactnativenavigation/views/TopBar.java
@@ -213,6 +213,7 @@ private void setTopTabsStyle(StyleParams style) {
         topTabs.setTopTabsTextColor(style);
         topTabs.setSelectedTabIndicatorStyle(style);
         topTabs.setScrollable(style);
+        topTabs.setTopTabsTextFontFamily(style);
     }
 
     public void showContextualMenu(final ContextualMenuParams params, StyleParams styleParams, Callback onButtonClicked) {
diff --git a/android/app/src/main/java/com/reactnativenavigation/views/TopTabs.java b/android/app/src/main/java/com/reactnativenavigation/views/TopTabs.java
index 77d68d90a8d..456b2f9bcb4 100644
--- a/android/app/src/main/java/com/reactnativenavigation/views/TopTabs.java
+++ b/android/app/src/main/java/com/reactnativenavigation/views/TopTabs.java
@@ -2,7 +2,11 @@
 
 import android.content.Context;
 import android.content.res.ColorStateList;
+import android.graphics.Typeface;
 import android.support.design.widget.TabLayout;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
 
 import com.reactnativenavigation.params.StyleParams;
 import com.reactnativenavigation.views.utils.TopTabsIconColorHelper;
@@ -39,6 +43,24 @@ void setTopTabsTextColor(StyleParams style) {
         setTabTextColors(tabTextColor, selectedTabColor);
     }
 
+    void setTopTabsTextFontFamily(StyleParams style) {
+        if (style.topTabTextFontFamily.hasFont()) {
+            ViewGroup viewGroup = (ViewGroup) this.getChildAt(0);
+
+            for (int tab = 0; tab < viewGroup.getChildCount(); tab++) {
+                ViewGroup tabViewGroup = (ViewGroup) viewGroup.getChildAt(tab);
+
+                for (int i = 0; i < tabViewGroup.getChildCount(); i++) {
+                    View tabViewChild = tabViewGroup.getChildAt(i);
+                    if (tabViewChild instanceof TextView) {
+                        ((TextView) tabViewChild).setTypeface(
+                                style.topTabTextFontFamily.get(), Typeface.NORMAL);
+                    }
+                }
+            }
+        }
+    }
+
     void setScrollable(StyleParams style) {
         if (style.topTabsScrollable) {
             setTabMode(TabLayout.MODE_SCROLLABLE);
diff --git a/docs/styling-the-navigator.md b/docs/styling-the-navigator.md
index e2b5b7cfbba..9888ac1defa 100644
--- a/docs/styling-the-navigator.md
+++ b/docs/styling-the-navigator.md
@@ -101,6 +101,7 @@ this.props.navigator.setStyle({
   navBarButtonFontFamily: 'sans-serif-thin', // Change the font family of textual buttons
   topBarElevationShadowEnabled: false, // default: true. Disables TopBar elevation shadow on Lolipop and above
   statusBarColor: '#000000', // change the color of the status bar.
+  drawUnderStatusBar: false, // default: false, will draw the screen underneath the statusbar. Useful togheter with statusBarColor: transparent
   collapsingToolBarImage: "http://lorempixel.com/400/200/", // Collapsing Toolbar image.
   collapsingToolBarImage: require('../../img/topbar.jpg'), // Collapsing Toolbar image. Either use a url or require a local image.
   collapsingToolBarCollapsedColor: '#0f2362', // Collapsing Toolbar scrim color.
diff --git a/docs/top-level-api.md b/docs/top-level-api.md
index e7792fe8fc3..863f452a360 100644
--- a/docs/top-level-api.md
+++ b/docs/top-level-api.md
@@ -75,7 +75,7 @@ Navigation.startTabBasedApp({
       drawerShadow: true, // optional, add this if you want a side menu drawer shadow
       contentOverlayColor: 'rgba(0,0,0,0.25)', // optional, add this if you want a overlay color when drawer is open
       leftDrawerWidth: 50, // optional, add this if you want a define left drawer width (50=percent)
-      rightDrawerWidth: 50 // optional, add this if you want a define right drawer width (50=percent)
+      rightDrawerWidth: 50, // optional, add this if you want a define right drawer width (50=percent)
       shouldStretchDrawer: true // optional, iOS only with 'MMDrawer' type, whether or not the panning gesture will “hard-stop” at the maximum width for a given drawer side, default : true
     },
     type: 'MMDrawer', // optional, iOS only, types: 'TheSideBar', 'MMDrawer' default: 'MMDrawer'
diff --git a/example/src/screens/types/TopTabs.js b/example/src/screens/types/TopTabs.js
index a8b06874b87..70454eca4c4 100644
--- a/example/src/screens/types/TopTabs.js
+++ b/example/src/screens/types/TopTabs.js
@@ -4,6 +4,7 @@ import {PixelRatio} from 'react-native';
 class TopTabs extends React.Component {
   static navigatorStyle = {
     topTabTextColor: '#ffffff',
+    topTabTextFontFamily: 'BioRhyme-Bold',
     selectedTopTabTextColor: '#ff505c',
 
     // Icons
diff --git a/ios/RCCNavigationController.m b/ios/RCCNavigationController.m
index bbf0e534559..36602d27f21 100755
--- a/ios/RCCNavigationController.m
+++ b/ios/RCCNavigationController.m
@@ -172,6 +172,8 @@ - (void)performAction:(NSString*)performAction actionParams:(NSDictionary*)actio
       if ([self.topViewController isKindOfClass:[RCCViewController class]])
       {
         RCCViewController *topViewController = ((RCCViewController*)self.topViewController);
+        topViewController.previewController = nil;
+        [topViewController.navigationController unregisterForPreviewingWithContext:topViewController.previewContext];
         viewController.previewActions = previewActions;
         viewController.previewCommit = actionParams[@"previewCommit"] ? [actionParams[@"previewCommit"] boolValue] : YES;
         NSNumber *previewHeight = actionParams[@"previewHeight"];
@@ -184,7 +186,7 @@ - (void)performAction:(NSString*)performAction actionParams:(NSDictionary*)actio
             [bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
               UIView *view = viewRegistry[previewViewID];
               topViewController.previewView = view;
-              [topViewController registerForPreviewingWithDelegate:(id)topViewController sourceView:view];
+              topViewController.previewContext = [topViewController registerForPreviewingWithDelegate:(id)topViewController sourceView:view];
             }];
           });
           topViewController.previewController = viewController;
@@ -257,7 +259,7 @@ - (void)performAction:(NSString*)performAction actionParams:(NSDictionary*)actio
     if (!component) return;
     
     NSMutableDictionary *passProps = [actionParams[@"passProps"] mutableCopy];
-    passProps[@"commantType"] = @"resetTo";
+    passProps[@"commandType"] = @"resetTo";
     NSDictionary *navigatorStyle = actionParams[@"style"];
     
     RCCViewController *viewController = [[RCCViewController alloc] initWithComponent:component passProps:passProps navigatorStyle:navigatorStyle globalProps:nil bridge:bridge];
diff --git a/ios/RCCViewController.h b/ios/RCCViewController.h
index 27ca96d415a..5b35a755756 100755
--- a/ios/RCCViewController.h
+++ b/ios/RCCViewController.h
@@ -22,6 +22,7 @@ extern NSString* const RCCViewControllerCancelReactTouchesNotification;
 @property (nonatomic) UIView *previewView;
 @property (nonatomic) NSArray *previewActions;
 @property (nonatomic) BOOL previewCommit;
+@property (nonatomic) id previewContext;
 
 + (UIViewController*)controllerWithLayout:(NSDictionary *)layout globalProps:(NSDictionary *)globalProps bridge:(RCTBridge *)bridge;
 
diff --git a/src/deprecated/platformSpecificDeprecated.android.js b/src/deprecated/platformSpecificDeprecated.android.js
index f1f5818c8d7..0ee116d489a 100644
--- a/src/deprecated/platformSpecificDeprecated.android.js
+++ b/src/deprecated/platformSpecificDeprecated.android.js
@@ -80,6 +80,12 @@ function navigatorPush(navigator, params) {
   adapted = adaptNavigationParams(adapted);
   adapted.overrideBackPress = params.overrideBackPress;
   adapted.timestamp = Date.now();
+  if (!adapted.passProps) {
+    adapted.passProps = {};
+  }
+  if (!adapted.passProps.commandType) {
+    adapted.passProps.commandType = 'Push';
+  }
 
   return newPlatformSpecific.push(adapted);
 }
@@ -143,6 +149,7 @@ function convertStyleParams(originalStyleObject) {
     statusBarColor: processColor(originalStyleObject.statusBarColor),
     statusBarHidden: originalStyleObject.statusBarHidden,
     statusBarTextColorScheme: originalStyleObject.statusBarTextColorScheme,
+    drawUnderStatusBar: originalStyleObject.drawUnderStatusBar || false,
     topBarReactView: originalStyleObject.navBarCustomView,
     topBarReactViewAlignment: originalStyleObject.navBarComponentAlignment,
     topBarReactViewInitialProps: originalStyleObject.navBarCustomViewInitialProps,
@@ -183,6 +190,7 @@ function convertStyleParams(originalStyleObject) {
     drawBelowTopBar: !originalStyleObject.drawUnderNavBar,
 
     topTabTextColor: processColor(originalStyleObject.topTabTextColor),
+    topTabTextFontFamily: originalStyleObject.topTabTextFontFamily,
     topTabIconColor: processColor(originalStyleObject.topTabIconColor),
     selectedTopTabIconColor: processColor(originalStyleObject.selectedTopTabIconColor),
     selectedTopTabTextColor: processColor(originalStyleObject.selectedTopTabTextColor),
@@ -472,6 +480,12 @@ function showModal(params) {
   adapted = adaptNavigationParams(adapted);
   adapted.overrideBackPress = params.overrideBackPress;
   adapted.timestamp = Date.now();
+  if (!adapted.passProps) {
+    adapted.passProps = {};
+  }
+  if (!adapted.passProps.commandType) {
+    adapted.passProps.commandType = 'ShowModal';
+  }
 
   newPlatformSpecific.showModal(adapted);
 }