Passing reference to activity to utility class android

Question

I realise this question has been asked many times, but I am still unable to completely understand this concept. In my application, I am using a static utility class to keep comm

Answer 1

No, it's a bad approach. You better pass WeakReference<Activity> to your methods, and implement methods like this:

public static final void showSimpleAlertDialog(final WeakReference<Activity> mReference, String  message, final boolean shouldFinishActivity) {
    Activity activity = mReference.get();
    if (activity != null) {
        //your code goes here
    }

Further reading: http://android-developers.blogspot.ae/2009/01/avoiding-memory-leaks.html