[admob][android] Standardise adunit / adUnit

lib/modules/admob/Interstitial.js

@@ -6,11 +6,11 @@ const FirebaseAdMob = NativeModules.RNFirebaseAdmob;
 
 export default class Interstitial {
 
-  constructor(admob: Object, adunit: string) {
+  constructor(admob: Object, adUnit: string) {
     this.admob = admob;
-    this.adUnit = adunit;
+    this.adUnit = adUnit;
     this.loaded = false;
-    this.admob.on(`interstitial_${adunit}`, this._onInterstitialEvent.bind(this));
+    this.admob.on(`interstitial_${adUnit}`, this._onInterstitialEvent.bind(this));
   }
 
   /**

lib/modules/admob/index.js

@@ -1,5 +1,6 @@
 import { NativeModules, NativeEventEmitter } from 'react-native';
 import Interstitial from './Interstitial';
+import RewardedVideo from './RewardedVideo';
 import AdRequest from './AdRequest';
 import Banner from './Banner';
 import { Base } from './../base';
@@ -12,11 +13,23 @@ export default class Admob extends Base {
   constructor() {
     super();
     FirebaseAdMobEvt.addListener('interstitial_event', this._onInterstitialEvent.bind(this));
+    FirebaseAdMobEvt.addListener('rewarded_video_event', this._onRewardedVideoEvent.bind(this));
   }
 
   _onInterstitialEvent(event) {
-    const { adunit } = event;
-    const jsEventType = `interstitial_${adunit}`;
+    const { adUnit } = event;
+    const jsEventType = `interstitial_${adUnit}`;
+
+    if (!this.hasListeners(jsEventType)) {
+      // TODO
+    }
+
+    this.emit(jsEventType, event);
+  }
+
+  _onRewardedVideoEvent(event) {
+    const { adUnit } = event;
+    const jsEventType = `rewarded_video_${adUnit}`;
 
     if (!this.hasListeners(jsEventType)) {
       // TODO
@@ -29,6 +42,10 @@ export default class Admob extends Base {
     return new Interstitial(this, adUnit);
   }
 
+  rewarded(adUnit: string) {
+    return new RewardedVideo(this, adUnit);
+  }
+
   static get statics() {
     return statics;
   }
@@ -44,13 +61,4 @@ export const statics = {
     onAdClosed: 'onAdClosed',
     onAdFailedToLoad: 'onAdFailedToLoad',
   },
-  RewardedEventTypes: {
-    onRewarded: 'onRewarded',
-    onRewardedVideoAdLeftApplication: 'onRewardedVideoAdLeftApplication',
-    onRewardedVideoAdClosed: 'onRewardedVideoAdClosed',
-    onRewardedVideoAdFailedToLoad: 'onRewardedVideoAdFailedToLoad',
-    onRewardedVideoAdLoaded: 'onRewardedVideoAdLoaded',
-    onRewardedVideoAdOpened: 'onRewardedVideoAdOpened',
-    onRewardedVideoStarted: 'onRewardedVideoStarted',
-  },
 };