Android Fragment执行finish()后，回退到另一个Fragment实现更新数据

fragment 执行finish方法后的代码：

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

回退到的fragment的代码：

 	   @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();//实现操作数据刷新的方法
                }
            }
        };
        broadcastManager.registerReceiver(mItemViewListClickReceiver, intentFilter);
    }

原文章出处：https://www.cnblogs.com/shmilyGWT/p/8274610.html