Implement statusBarStyle on Android

lib/android/app/src/main/java/com/reactnativenavigation/parse/StatusBarOptions.java

 package com.reactnativenavigation.parse;
 
+import android.support.annotation.Nullable;
+
 import com.reactnativenavigation.parse.params.Color;
 import com.reactnativenavigation.parse.params.NullColor;
 import com.reactnativenavigation.parse.parsers.ColorParser;
 import org.json.JSONObject;
 
 public class StatusBarOptions {
+    public enum TextColorScheme {
+        Light("light"), Dark("dark"), None("none");
+
+        private String scheme;
+
+        TextColorScheme(String scheme) {
+            this.scheme = scheme;
+        }
+
+        public static TextColorScheme fromString(@Nullable String scheme) {
+            if (scheme == null) return None;
+            switch (scheme) {
+                case "light":
+                    return Light;
+                case "dark":
+                    return Dark;
+                default:
+                    return None;
+            }
+        }
+
+        public boolean hasValue() {
+            return !scheme.equals(None.scheme);
+        }
+    }
+
     public static StatusBarOptions parse(JSONObject json) {
         StatusBarOptions result = new StatusBarOptions();
         if (json == null) return result;
 
         result.backgroundColor = ColorParser.parse(json, "statusBarBackgroundColor");
+        result.textColorScheme = TextColorScheme.fromString(json.optString("statusBarStyle"));
 
         return result;
     }
 
     public Color backgroundColor = new NullColor();
+    public TextColorScheme textColorScheme = TextColorScheme.None;
 
     public void mergeWith(StatusBarOptions other) {
         if (other.backgroundColor.hasValue()) backgroundColor = other.backgroundColor;
+        if (other.textColorScheme.hasValue()) textColorScheme = other.textColorScheme;
     }
 
     public void mergeWithDefault(StatusBarOptions defaultOptions) {
         if (!backgroundColor.hasValue()) backgroundColor = defaultOptions.backgroundColor;
+        if (!textColorScheme.hasValue()) textColorScheme = defaultOptions.textColorScheme;
     }
 }

lib/android/app/src/main/java/com/reactnativenavigation/presentation/OptionsPresenter.java

 import com.reactnativenavigation.parse.Options;
 import com.reactnativenavigation.parse.OrientationOptions;
 import com.reactnativenavigation.parse.StatusBarOptions;
+import com.reactnativenavigation.parse.StatusBarOptions.TextColorScheme;
 
 @SuppressWarnings("FieldCanBeLocal")
 public class OptionsPresenter {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
             activity.getWindow().setStatusBarColor(statusBar.backgroundColor.get(Color.BLACK));
         }
+        setTextColorScheme(statusBar.textColorScheme);
+    }
+
+    private void setTextColorScheme(TextColorScheme scheme) {
+        final View view = activity.getWindow().getDecorView();
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return;
+        if (scheme == TextColorScheme.Dark) {
+            int flags = view.getSystemUiVisibility();
+            flags |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
+            view.setSystemUiVisibility(flags);
+        } else {
+            clearDarkTextColorScheme(view);
+        }
+    }
+
+    private static void clearDarkTextColorScheme(View view) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return;
+        int flags = view.getSystemUiVisibility();
+        flags &= ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
+        view.setSystemUiVisibility(flags);
     }
 }

playground/src/screens/OptionsScreen.js

 class OptionsScreen extends Component {
   static get options() {
     return {
-      statusBarBackgroundColor: 'red',
+      statusBarBackgroundColor: '#EDEDED',
+      statusBarStyle: 'dark',
       topBar: {
         title: {
           text: 'Static Title',