Fragment通过广播刷新界面

纠结了好久的问题，fragment跳转到activity后，当activity执行某些操作后，当返回时，刷新当前的fragment.用广播实现。

1.在Fragment的onActivityCreated()方法中注册广播

@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)){
              getData();
              }
           }
};
broadcastManager.registerReceiver(mItemViewListClickReceiver, intentFilter);
}

2.在Activity结束的时候更新

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