add reward video closed and clicked event

README.md

@@ -109,6 +109,10 @@ document.addEventListener('startappads.interstitial.load_fail', () => {
   //do something here
 });
 ```
+#### IMPORTANT:
+```
+Do not call `showInterstitial()` from within `load_fail` event. The SDK will automatically try to reload an ad upon a failure.
+```
 
 ### 5. Show Rewarded Video Ads
 Show a Rewarded Video Ad:
@@ -127,6 +131,16 @@ document.addEventListener('startappads.reward_video.load', () => {
   //do something here
 });
 
+document.addEventListener('startappads.reward_video.closed', () => {
+  //user closed video reward 
+  //do something here
+});
+
+document.addEventListener('startappads.reward_video.clicked', () => {
+  //user click on video reward 
+  //do something here
+});
+
 document.addEventListener('startappads.reward_video.load_fail', () => {
   //reward video failed to load. Probably no Ads available at the moment
   //do something here

src/android/StartAppAdsPlugin.java

@@ -239,7 +239,25 @@ public void onFailedToReceiveAd(Ad arg0) {
 
   public void showRewardVideo(CallbackContext callbackContext) {
     if (rewardedVideo != null) {
-      rewardedVideo.showAd();
+      Log.d(TAG, "Reward Video show now!");
+      rewardedVideo.showAd(new AdDisplayListener() {
+        @Override
+        public void adHidden(Ad ad) {
+          Log.d(TAG, "Rewarded Video closed!");
+          cWebView.loadUrl("javascript:cordova.fireDocumentEvent('startappads.reward_video.closed');");
+        }
+        @Override
+        public void adClicked(Ad ad) {
+          Log.d(TAG, "Rewarded Video clicked!");
+          cWebView.loadUrl("javascript:cordova.fireDocumentEvent('startappads.reward_video.clicked');");
+        }
+        @Override
+        public void adDisplayed(Ad ad) {
+        }
+        @Override
+        public void adNotDisplayed(Ad ad) {
+        }
+      });
     } else {
       Log.d(TAG, "Video Reward need to load before call it!");
     }