Implement popToRoot

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

@@ -233,6 +233,15 @@ public abstract class BaseReactActivity extends AppCompatActivity implements Def
         return null;
     }
 
+    @CallSuper
+    public Screen popToRoot(String navigatorId) {
+        if (mToolbar != null) {
+            mToolbar.hideBackButton();
+        }
+
+        return null;
+    }
+
     protected abstract String getCurrentNavigatorId();
 
     @CallSuper

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

@@ -133,6 +133,19 @@ public class BottomTabActivity extends BaseReactActivity implements AHBottomNavi
         return null;
     }
 
+    @Override
+    public Screen popToRoot(String navigatorId) {
+        super.popToRoot(navigatorId);
+        for (ScreenStack stack: mScreenStacks) {
+            if (stack.peek().navigatorId.equals(navigatorId)) {
+                Screen popped = stack.popToRoot();
+                setNavigationStyle(getCurrentScreen());
+                return popped;
+            }
+        }
+        return null;
+    }
+
     @Override
     protected Screen getCurrentScreen() {
         Screen currentScreen = super.getCurrentScreen();

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

@@ -64,6 +64,14 @@ public class SingleScreenActivity extends BaseReactActivity {
         return popped;
     }
 
+    @Override
+    public Screen popToRoot(String navigatorId) {
+        super.popToRoot(navigatorId);
+        Screen screen = mScreenStack.popToRoot();
+        setNavigationStyle(getCurrentScreen());
+        return screen;
+    }
+
     @Override
     public String getCurrentNavigatorId() {
         return mNavigatorId;

android/app/src/main/java/com/reactnativenavigation/modules/RctActivityModule.java

@@ -27,6 +27,7 @@ import java.util.ArrayList;
  */
 public class RctActivityModule extends ReactContextBaseJavaModule {
     public static final String REACT_CLASS = "RctActivity";
+    private static final String KEY_NAVIGATOR_ID = "navigatorID";
 
     public RctActivityModule(ReactApplicationContext reactContext) {
         super(reactContext);
@@ -133,7 +134,7 @@ public class RctActivityModule extends ReactContextBaseJavaModule {
 
     @ReactMethod
     public void navigatorPop(final ReadableMap navigator) {
-        final String navigatorId = navigator.getString("navigatorID");
+        final String navigatorId = navigator.getString(KEY_NAVIGATOR_ID);
         final BaseReactActivity context = ContextProvider.getActivityContext();
         if (context == null || context.isFinishing()) {
             return;
@@ -160,6 +161,22 @@ public class RctActivityModule extends ReactContextBaseJavaModule {
                 }
             });
         }
+    }
+
+    @ReactMethod
+    public void navigatorPopToRoot(final ReadableMap params) {
+        final BaseReactActivity context = ContextProvider.getActivityContext();
+        if (context == null || context.isFinishing()) {
+            return;
+        }
+
+        final String navigatorID = params.getString(KEY_NAVIGATOR_ID);
+        context.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                context.popToRoot(navigatorID);
+            }
+        });
 
     }
 

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

@@ -81,6 +81,33 @@ public class ScreenStack extends FrameLayout {
         return popped.screen;
     }
 
+    public Screen popToRoot() {
+        if (mStack.isEmpty()) {
+            return null;
+        }
+
+        int stackSize = getStackSize();
+        if (stackSize < 2) {
+            return null;
+        }
+
+        ScreenView lastView = null;
+        while (getStackSize() >= 2) {
+            ScreenView popped = mStack.pop();
+            ReflectionUtils.setBooleanField(popped.view.getReactRootView(), "mAttachScheduled", false);
+            removeView(popped.view);
+            if (lastView == null) {
+                lastView = popped;
+            }
+        }
+
+        if (!mStack.isEmpty()) {
+            addView(mStack.peek().view, 0);
+        }
+
+        return lastView.screen;
+    }
+
     public boolean isEmpty() {
         return mStack.isEmpty();
     }

src/platformSpecific.android.js

@@ -69,6 +69,13 @@ function navigatorPop(navigator, params) {
   RctActivity.navigatorPop(navigator);
 }
 
+function navigatorPopToRoot(navigator, params) {
+  RctActivity.navigatorPopToRoot({
+    navigatorID: navigator.navigatorID,
+    animated: !(params.animated !== false)
+  });
+}
+
 function showModal(params) {
   addNavigatorParams(params);
   addNavigatorButtons(params);
@@ -117,6 +124,7 @@ export default {
   startSingleScreenApp,
   navigatorPush,
   navigatorPop,
+  navigatorPopToRoot,
   showModal,
   dismissModal,
   dismissAllModals,