优化优量汇内存泄漏，更换最新api

GoodMoney/app/src/main/java/com/mints/goodmoney/ad/video/YlhVideoAdManager.java

@@ -36,14 +36,13 @@ public class YlhVideoAdManager extends BaseVideoAd {
         if (_inst != null) {
             return _inst;
         } else {
-            WeakReference<Activity> activityWeakReference = new WeakReference<>(activity);
-            _inst = new YlhVideoAdManager(activityWeakReference);
+            _inst = new YlhVideoAdManager(activity);
             return _inst;
         }
     }
 
-    private YlhVideoAdManager(WeakReference<Activity> activity) {
-        init(activity.get());
+    private YlhVideoAdManager(Activity activity) {
+        init(activity);
     }
 
     private void init(Activity activity) {
@@ -53,6 +52,7 @@ public class YlhVideoAdManager extends BaseVideoAd {
     @Override
     public void onDestroy() {
         activity = null;
+        rewardVideoAD = null;
     }
 
     /**
@@ -132,7 +132,7 @@ public class YlhVideoAdManager extends BaseVideoAd {
         }
 
 
-        rewardVideoAD = new RewardVideoAD(activity, YlhAdManager.YLH_AD_APPID, ylhPostId, new RewardVideoADListener() {
+        rewardVideoAD = new RewardVideoAD(activity, ylhPostId, new RewardVideoADListener() {
             @Override
             public void onADLoad() {//广告加载成功，可在此回调后进行广告展示，此时广告过期时间确定，可通过RewardVideoAD.getExpireTimestamp()获取
                 try {