Firebase列表适配器构造函数错误

我创建了一个显示聊天消息的函数，我按照教程，我也查看了Firebase列表适配器的文档，但无论我做什么，我都会收到此错误：

Error:(98, 19) error: constructor FirebaseListAdapter in class FirebaseListAdapter cannot be applied to given types; required: FirebaseListOptions found: Chat,Class,int,DatabaseReference reason: actual and formal argument lists differ in length where T is a type-variable: T extends Object declared in class FirebaseListAdapter 

这是我的代码：

 private void displayChatMessage() { ListView listOfMessage = (ListView)findViewById(R.id.list_of_messages); FirebaseRecyclerOptions options = new FirebaseRecyclerOptions.Builder() .setQuery(query, ChatMessage.class) .build(); adapter = new FirebaseListAdapter(options){ @Override protected void populateView(View v, ChatMessage model, int position) { //Get references to the views of list_item.xml TextView messageText, messageUser, messageTime; messageText = (TextView) v.findViewById(R.id.message_text); messageUser = (TextView) v.findViewById(R.id.message_user); messageTime = (TextView) v.findViewById(R.id.message_time); messageText.setText(model.getMessageText()); messageUser.setText(model.getMessageUser()); messageTime.setText(DateFormat.format("dd-MM-yyyy (HH:mm:ss)", model.getMessageTime())); } }; listOfMessage.setAdapter(adapter); } 

Answer 1

以下内容来自FirebaseUI 3.0+版本

删除这个：

  adapter = new FirebaseListAdapter(this,ChatMessage.class,R.layout.list_item,FirebaseDatabase.getInstance().getReference()) 

你需要添加这个：

 FirebaseListOptions options = new FirebaseListOptions.Builder() .setQuery(query, ChatMessage.class) .setLayout(android.R.layout.simple_list_item_1) .build(); adapter = new FirebaseListAdapter(options){ 

query是您为列表适配器示例进行的查询：

 Query query = FirebaseDatabase.getInstance().getReference().child("chats"); 

更多信息：

使用FirebaseUI填充ListView