Handler to get around Context memory leak issue

MessageHandler.java

package com.apparcadia.common.lib;

import android.os.Handler;
import android.os.Message;

import java.lang.ref.WeakReference;

public abstract class MessageHandler<T> extends Handler {
    private final WeakReference<T> ref;

    public MessageHandler(T t) {
        super();
        ref = new WeakReference<>(t);
    }

    @Override
    public final void handleMessage(Message msg) {
        super.handleMessage(msg);

        T t = ref.get();
        if (t == null) {
            return;
        }

        handleMessage(t, msg);
    }

    public abstract void handleMessage(T t, Message msg);
}