Merge pull request #29 from zoyi-jin/fix/fixNotificationContext

Fix notification context

Author: shimika

android/src/main/java/com/zoyi/channel/rn/RNChannelIO.java

@@ -128,10 +128,12 @@ public void initPushToken(String tokenData) {
 
   @ReactMethod
   public void handlePushNotification(ReadableMap userInfo, Promise promise) {
-    Context context = getCurrentActivity();
+    if (reactContext != null) {
+      Context context = reactContext.getApplicationContext();
 
-    if (context != null){
-      ChannelIO.showPushNotification(context, ParseUtils.toPushNotification(userInfo));
+      if (context != null) {
+        ChannelIO.showPushNotification(context, ParseUtils.toPushNotification(userInfo));
+      }
     }
 
     promise.resolve(true);