Merge pull request #9 from OneSignal/fix_context_error

Fix Incorrect Context

Author: Nightsd01

android/src/main/java/com/onesignal/flutter/OneSignalPlugin.java

@@ -98,7 +98,7 @@ else if (call.method.contentEquals("OneSignal#didSetNotificationOpenedHandler"))
 
   private void initOneSignal(MethodCall call, Result result) {
     String appId = call.argument("appId");
-    Context context = flutterRegistrar.context();
+    Context context = flutterRegistrar.activeContext();
 
     OneSignal.Builder builder = OneSignal.getCurrentOrNewInitBuilder();
     builder.unsubscribeWhenNotificationsAreDisabled(true);
@@ -164,8 +164,8 @@ private void getPermissionSubscriptionState(Result result) {
   }
 
   private void setInFocusDisplayType(MethodCall call, Result result) {
-    int deplayType = call.argument("displayType");
-    OneSignal.setInFocusDisplaying(deplayType);
+    int displayType = call.argument("displayType");
+    OneSignal.setInFocusDisplaying(displayType);
     result.success(null);
   }