Merge pull request #25787 from henrikra/master

Add missing functions and classes (react-native-navigation)

types/react-native-navigation/index.d.ts

@@ -18,6 +18,7 @@ export namespace Navigation {
     function handleDeepLink(params?: { link: string; payload?: string; }): void;
     function registerScreen(screenId: string, generator: () => React.ComponentType<any>): void;
     function getCurrentlyVisibleScreenId(): Promise<string>;
+    function isAppLaunched(): Promise<boolean>;
 }
 
 export interface TabBasedApp {
@@ -118,7 +119,7 @@ export interface LightBox {
 }
 
 export interface NavigatorEvent {
-    id: 'willAppear' | 'didAppear' | 'willDisappear' | 'didDisappear' | 'willCommitPreview';
+    id: 'willAppear' | 'didAppear' | 'willDisappear' | 'didDisappear' | 'willCommitPreview' | 'backPress';
 }
 
 export class Navigator {
@@ -155,6 +156,11 @@ export class ScreenVisibilityListener {
     unregister(): void;
 }
 
+export class NativeEventsReceiver {
+    constructor();
+    appLaunched(callback: () => void): void;
+}
+
 export interface ScreenVisibilityListenerParams {
     willAppear?: (params: ListenerParams) => void;
     didAppear?: (params: ListenerParams) => void;

types/react-native-navigation/react-native-navigation-tests.tsx

@@ -1,6 +1,13 @@
 import * as React from 'react';
 import { Text, View } from 'react-native';
-import { Navigation, NavigationComponentProps, NavigatorStyle, NavigatorButtons, NavigatorEvent } from 'react-native-navigation';
+import {
+    Navigation,
+    NavigationComponentProps,
+    NavigatorStyle,
+    NavigatorButtons,
+    NavigatorEvent,
+    NativeEventsReceiver,
+} from 'react-native-navigation';
 
 type Props = NavigationComponentProps & { height: number };
 
@@ -83,6 +90,17 @@ Navigation.registerComponent('example.Screen1', () => Screen1, {}, TestProvider,
 Navigation.registerComponent('example.Screen2', () => Screen2);
 Navigation.registerComponent('example.Drawer', () => Drawer);
 
+Navigation.isAppLaunched().then(appLaunched => {
+    if (appLaunched) {
+      startApp(); // App is launched -> show UI
+    }
+    new NativeEventsReceiver().appLaunched(startApp); // App hasn't been launched yet -> show the UI only when needed.
+});
+
+function startApp() {
+    // do something here
+}
+
 Navigation.startTabBasedApp({
     tabs: [
         {