| |
| package com.example.android.wifidirect.discovery; |
| |
| import android.app.Fragment; |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.ArrayAdapter; |
| import android.widget.ListView; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * This fragment handles chat related UI which includes a list view for messages |
| * and a message entry field with send button. |
| */ |
| public class WiFiChatFragment extends Fragment { |
| |
| private View view; |
| private ChatManager chatManager; |
| private TextView chatLine; |
| private ListView listView; |
| ChatMessageAdapter adapter = null; |
| private List<String> items = new ArrayList<String>(); |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| view = inflater.inflate(R.layout.fragment_chat, container, false); |
| chatLine = (TextView) view.findViewById(R.id.txtChatLine); |
| listView = (ListView) view.findViewById(android.R.id.list); |
| adapter = new ChatMessageAdapter(getActivity(), android.R.id.text1, |
| items); |
| listView.setAdapter(adapter); |
| view.findViewById(R.id.button1).setOnClickListener( |
| new View.OnClickListener() { |
| |
| @Override |
| public void onClick(View arg0) { |
| if (chatManager != null) { |
| chatManager.write(chatLine.getText().toString() |
| .getBytes()); |
| pushMessage("Me: " + chatLine.getText().toString()); |
| chatLine.setText(""); |
| chatLine.clearFocus(); |
| } |
| } |
| }); |
| return view; |
| } |
| |
| public interface MessageTarget { |
| public Handler getHandler(); |
| } |
| |
| public void setChatManager(ChatManager obj) { |
| chatManager = obj; |
| } |
| |
| public void pushMessage(String readMessage) { |
| adapter.add(readMessage); |
| adapter.notifyDataSetChanged(); |
| } |
| |
| /** |
| * ArrayAdapter to manage chat messages. |
| */ |
| public class ChatMessageAdapter extends ArrayAdapter<String> { |
| |
| List<String> messages = null; |
| |
| public ChatMessageAdapter(Context context, int textViewResourceId, |
| List<String> items) { |
| super(context, textViewResourceId, items); |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| View v = convertView; |
| if (v == null) { |
| LayoutInflater vi = (LayoutInflater) getActivity() |
| .getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| v = vi.inflate(android.R.layout.simple_list_item_1, null); |
| } |
| String message = items.get(position); |
| if (message != null && !message.isEmpty()) { |
| TextView nameText = (TextView) v |
| .findViewById(android.R.id.text1); |
| |
| if (nameText != null) { |
| nameText.setText(message); |
| if (message.startsWith("Me: ")) { |
| nameText.setTextAppearance(getActivity(), |
| R.style.normalText); |
| } else { |
| nameText.setTextAppearance(getActivity(), |
| R.style.boldText); |
| } |
| } |
| } |
| return v; |
| } |
| } |
| } |