@Override
    public void onDestroyView() {
        super.onDestroyView();
        mHandler.removeCallbacks(mShowContentRunnable);
    }
Sample implementation of {@link com.devspark.progressfragment.ProgressGridFragment}.

@author Evgeny Shishkin
progressfragment-sample/src/com/devspark/progressfragment/sample/DefaultProgressGridFragment.java