Merge pull request #306 from grit96/patch-1

Fix potential NullPointerException in hasPermissions

Author: manuquentin

android/src/main/java/io/wazo/callkeep/RNCallKeepModule.java

@@ -507,6 +507,10 @@ private String getApplicationName(Context appContext) {
 
     private Boolean hasPermissions() {
         Activity currentActivity = this.getCurrentActivity();
+        
+        if (currentActivity == null) {
+            return false;
+        }
 
         boolean hasPermissions = true;
         for (String permission : permissions) {