如何从fragment跳到activity再从activity返回（finish()方法返回）刷新fragemnt页面

@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
LocalBroadcastManager broadcastManager = LocalBroadcastManager.getInstance(getActivity());
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("android.intent.action.CART_BROADCAST");
BroadcastReceiver mItemViewListClickReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent){
String msg = intent.getStringExtra("data");
if("refresh".equals(msg)){
refresh();
}
}
};
broadcastManager.registerReceiver(mItemViewListClickReceiver, intentFilter);
}

Intent intent = new Intent("android.intent.action.CART_BROADCAST");
intent.putExtra("data","refresh");
LocalBroadcastManager.getInstance(AddFriendToContact.this).sendBroadcast(intent);
sendBroadcast(intent);