Stack depth android (#2559)

* Support creating stack with multiple children

* Add e2e

AndroidE2E/app/src/androidTest/java/com/reactnativenavigation/e2e/androide2e/ScreenStackTest.java

@@ -45,4 +45,13 @@ public class ScreenStackTest extends BaseTest {
         elementByText("POP TO ROOT").click();
         assertMainShown();
     }
+
+    @Test
+    public void pushStackWithMultipleChildren() throws Exception {
+        elementByText("SHOW MODAL").click();
+        elementByText("SHOW MODAL WITH STACK").click();
+        assertExists(By.text("Screen 2"));
+        device().pressBack();
+        assertExists(By.text("Screen 1"));
+    }
 }

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

@@ -101,9 +101,13 @@ public class LayoutFactory {
 
 	private ViewController createStack(LayoutNode node) {
 		StackController stackController = new StackController(activity, node.id);
-		for (LayoutNode child : node.children) {
-			stackController.animatePush(create(child), new NoOpPromise());
-		}
+        for (int i = 0; i < node.children.size(); i++) {
+            if (i < node.children.size() - 1) {
+                stackController.push(create(node.children.get(i)), new NoOpPromise());
+            } else {
+                stackController.animatePush(create(node.children.get(i)), new NoOpPromise());
+            }
+        }
 		return stackController;
 	}
 

lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/StackController.java

@@ -44,6 +44,20 @@ public class StackController extends ParentController <StackLayout> {
         stackLayout.clearOptions();
     }
 
+    public void push(ViewController child, final Promise promise) {
+        final ViewController toRemove = stack.peek();
+
+        child.setParentController(this);
+        stack.push(child.getId(), child);
+        View enteringView = child.getView();
+        getView().addView(enteringView);
+
+        if (toRemove != null) {
+            getView().removeView(toRemove.getView());
+        }
+        promise.resolve(child.getId());
+    }
+
     public void animatePush(final ViewController child, final Promise promise) {
 		final ViewController toRemove = stack.peek();
 

playground/src/screens/ModalScreen.js

@@ -25,6 +25,7 @@ class ModalScreen extends Component {
     this.onClickDismissFirstInStack = this.onClickDismissFirstInStack.bind(this);
     this.onClickDismissAllModals = this.onClickDismissAllModals.bind(this);
     this.onClickPushScreen = this.onClickPushScreen.bind(this);
+    this.onShowModalWithDeepStack = this.onShowModalWithDeepStack.bind(this);
   }
 
   render() {
@@ -37,6 +38,7 @@ class ModalScreen extends Component {
         <Button title="Dismiss Unknown Modal" testID={testIDs.DISMISS_UNKNOWN_MODAL_BUTTON} onPress={this.onClickDismissUnknownModal} />
         <Button title="Dismiss All Modals" testID={testIDs.DISMISS_ALL_MODALS_BUTTON} onPress={this.onClickDismissAllModals} />
         <Button title="Push screen" testID={testIDs.PUSH_BUTTON} onPress={this.onClickPushScreen} />
+        <Button title="Show Modal With Stack" testID={testIDs.PUSH_BUTTON} onPress={this.onShowModalWithDeepStack} />
         {this.getPreviousModalId() ? (<Button title="Dismiss Previous Modal" testID={testIDs.DISMISS_PREVIOUS_MODAL_BUTTON} onPress={this.onClickDismissPreviousModal} />) : undefined}
         {this.props.previousModalIds ? (<Button title="Dismiss ALL Previous Modals" testID={testIDs.DISMISS_ALL_PREVIOUS_MODAL_BUTTON} onPress={this.onClickDismissAllPreviousModals} />) : undefined}
         {this.props.previousModalIds ? (<Button title="Dismiss First In Stack" testID={testIDs.DISMISS_FIRST_MODAL_BUTTON} onPress={this.onClickDismissFirstInStack} />) : undefined}
@@ -92,6 +94,31 @@ class ModalScreen extends Component {
     });
   }
 
+  onShowModalWithDeepStack() {
+    Navigation.showModal({
+      stack: {
+        children: [
+          {
+            component: {
+              name: `navigation.playground.TextScreen`,
+              passProps: {
+                text: 'Screen 1'
+              }
+            }
+          },
+          {
+            component: {
+              name: `navigation.playground.TextScreen`,
+              passProps: {
+                text: 'Screen 2'
+              }
+            }
+          }
+        ]
+      }
+    });
+  }
+
   getModalPosition() {
     return (this.props.modalPosition || 1);
   }