小编Teo*_*Teo的帖子

我收到错误Gson(),jsonString并TypeToken在以下代码中:

Map<String, Object> jsonMap = new Gson().fromJson(jsonString, new TypeToken<HashMap<String, Object>>() {}.getType());

实际的方法是:public void sendButton(View v){Message myMessage = new Message(username,getTimeAndDate(),getMessage(),chatroomName,Incognito);

    String message = myMessage.messageData();
    Map<String, Object> jsonMap = new Gson().fromJson(jsonString, new TypeToken<HashMap<String, Object>>() {}.getType());
   // ref.setValue(myMessage.messageData());

messageData()并jsonString在我的Message类的以下代码中定义:

public String messageData() {

    JSONObject obj1 = new JSONObject();
    JSONObject obj2 = new JSONObject();

    //  Map<String, JSONObject> mapJSON = new HashMap<String, JSONObject>();
    try {
        obj1.put("Message", chatMessage);
        obj1.put("Username", username);
        obj1.put("isIncognito", Incognito);
        obj2.put(Long.toString(sendTime), obj1.toString());

    } catch (JSONException …