在recycleView中为不同的项目加载不同的聊天模型

Question

I attach this chat model to activity of "On Item click chat model

when I click on some cardView it opens the same chat model for all card views how I can make different chat data "messages" to each view in recycleView ?

the Activity of each click listener in recycle view

 if(FirebaseAuth.getInstance().getCurrentUser() == null) {
        // Start sign in/sign up activity
        startActivityForResult(
                AuthUI.getInstance()
                        .createSignInIntentBuilder()
                        .build(),
                SIGN_IN_REQUEST_CODE
        );
    } else {
        // User is already signed in. Therefore, display
        // a welcome Toast
        Toast.makeText(this,
                "Welcome " + FirebaseAuth.getInstance()
                        .getCurrentUser()
                        .getDisplayName(),
                Toast.LENGTH_LONG)
                .show();

        // Load chat room contents
        displayChatMessages();
    }


    FloatingActionButton fab =
            (FloatingActionButton)findViewById(R.id.fab);

    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            EditText input = (EditText)findViewById(R.id.input);

            // Read the input field and push a new instance
            // of ChatMessage to the Firebase database
            FirebaseDatabase.getInstance()
                    .getReference()
                    .push()
                    .setValue(new ChatMessage1(input.getText().toString(),
                            FirebaseAuth.getInstance()
                                    .getCurrentUser()
                                    .getDisplayName())
                    );

            // Clear the input
            input.setText("");
        }
    });
    displayChatMessages();}



private void displayChatMessages() {
    ListView listOfMessages = (ListView)findViewById(R.id.list_of_messages);

    adapter = new FirebaseListAdapter<ChatMessage1>(this, ChatMessage1.class,
            R.layout.messagee, FirebaseDatabase.getInstance().getReference()) {
        @Override
        protected void populateView(View v, ChatMessage1 model, int position) {
            // Get references to the views of message.xml
            TextView messageText = (TextView)v.findViewById(R.id.message_text);
            TextView messageUser = (TextView)v.findViewById(R.id.message_user);
            TextView messageTime = (TextView)v.findViewById(R.id.message_time);

            // Set their text
            messageText.setText(model.getMessageText());
            messageUser.setText(model.getMessageUser());

            // Format the date before showing it
            messageTime.setText(DateFormat.format("dd-MM-yyyy (HH:mm:ss)",
                    model.getMessageTime()));
        }
    };

    listOfMessages.setAdapter(adapter);
}

OnClick method

 @Override
    public void onClick(View v) {
        int position=getAdapterPosition();
        PushBotsModel push =  pushBotsModels.get(position);
        Log.i(TAG, "User received notification with Message: " + push);
        Intent intent = new Intent(this.ctx, NotificationDetails.class);
        intent.putExtra("itemName",push.getMessage());
        intent.putExtra("authorr",push.getauthor());
        this.ctx.startActivity(intent);
    }
}

chat model

public class ChatMessage1 {

private String messageText;
private String messageUser;
private long messageTime;

public ChatMessage1(String messageText, String messageUser) {
    this.messageText = messageText;
    this.messageUser = messageUser;

    // Initialize to current time
    messageTime = new Date().getTime();
}

public ChatMessage1(){

}

public String getMessageText() {
    return messageText;
}

public void setMessageText(String messageText) {
    this.messageText = messageText;
}

public String getMessageUser() {
    return messageUser;
}

public void setMessageUser(String messageUser) {
    this.messageUser = messageUser;
}

public long getMessageTime() {
    return messageTime;
}

public void setMessageTime(long messageTime) {
    this.messageTime = messageTime;
}

}

Answer 1

You may want to specify an adapter and a layout manager if you want to use the RecyclerView widget as discussed in Creating Lists and Cards .

Also, as shown in this example,

public class MyActivity extends Activity {
    private RecyclerView mRecyclerView;
    private RecyclerView.Adapter mAdapter;
    private RecyclerView.LayoutManager mLayoutManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.my_activity);
        mRecyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);

        // use this setting to improve performance if you know that changes
        // in content do not change the layout size of the RecyclerView
        mRecyclerView.setHasFixedSize(true);

        // use a linear layout manager
        mLayoutManager = new LinearLayoutManager(this);
        mRecyclerView.setLayoutManager(mLayoutManager);

        // specify an adapter (see also next example)
        mAdapter = new MyAdapter(myDataset);
        mRecyclerView.setAdapter(mAdapter);
    }
    ...
} 

RecyclerView widget was first added to the layout, obtained a handle to the object, connected it to a layout manager, and attached an adapter for the data to be displayed. Please check the documentation for more information.

And, you may want to also check the following references for additional insights:

• Android RecyclerView with Different Child Layouts
• How to create RecyclerView with multiple view type?