public void addPicture(Picture p) { if (p != null) { message.add(p); adapter.notifyDataSetChanged(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) gridView.smoothScrollToPosition(adapter.getCount()); } }
// Delete last symbol public void delete() { if (message != null && message.size() > 0) { message.remove(message.size() - 1); adapter.notifyDataSetChanged(); } }