java 如何在包中传递列表<>
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how to passing list<> in bundle
提问by user3016825
I have the following code:
我有以下代码：
List<ValueActivity> list = new ArrayList<ValueActivity>();
list = setList();
Intent intent = new Intent(NOTIFICATION);
Bundle bundle = new Bundle();
bundle.put ????("list", list);
intent.putExtra("bundle", bundle);
sendBroadcast(intent);
How to write line 5 and how getExtra in destination intent
如何编写第 5 行以及如何在目标意图中使用 getExtra
回答by David Wasser
You will need to have ValueActivityimplement Parcelableinterface and you will need to implement writeToParcel()the CREATORand a suitable constructor that takes a Parcelas argument. See the documentation of Parcelableinterface.
你需要有ValueActivity实现Parcelable的界面，你将需要实现writeToParcel()的CREATOR和合适的构造函数，一个Parcel作为参数。请参阅Parcelable接口文档。
To put the list into the Bundle, use:
要将列表放入Bundle，请使用：
bundle.putParcelableArrayList("list", list);
To get the list out of the Bundlein the target activity, use:
要从Bundle目标活动中获取列表，请使用：
List<ValueActivity> = listbundle.getParcelableArrayList("list");
回答by KOTIOS
try to use :
尝试使用：
String jsonList = gson.toJson(youList);
// Add String to bundle
