android ListView Adapter不显示
//activity
package wk.bluetooth;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.inputmethod.InputMethodManager;
import android.widget.*;
import android.widget.AdapterView.OnItemClickListener;
import android.view.View.OnClickListener;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import wk.bluetooth.StartServer.ChatListItem;
public class StartClient extends Activity implements OnItemClickListener ,OnClickListener{
private ListView mListView;
ChatAdapter mAdapter;
private ArrayList<ChatListItem> list;
private EditText sendMessage;
private Button sendButton;
private TextView title;
private ImageButton back;
private String joinChatRoomName;
private String address;
private String nowTime;
private BluetoothSocket socket;
private BluetoothDevice device = null;
private clientThread startClient = null;
private readThread mreadThread = null;
private BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
Context mContext;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.chat);
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,R.layout.titlebar);
Bundle bundle = this.getIntent().getExtras();
joinChatRoomName = bundle.getString("joinChatRoomName");
address = bundle.getString("address");
mContext = this;
init();
}
private void init(){
device = mBluetoothAdapter.getRemoteDevice(address);
list = new ArrayList<ChatListItem>();
mAdapter = new ChatAdapter(mContext, list);
mListView = (ListView) findViewById(R.id.chat_list);
mListView.setAdapter(mAdapter);
//mListView.setOnItemClickListener(this);
mListView.setFastScrollEnabled(true);
title = (TextView) findViewById(R.id.title);
title.setText(joinChatRoomName);
back = (ImageButton) findViewById(R.id.back);
back.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
if(mreadThread!=null){
mreadThread.interrupt();
}
if(startClient != null){
startClient.interrupt();
}
list.clear();
StartClient.this.finish();
}
});
sendMessage = (EditText)findViewById(R.id.MessageText);
sendButton = (Button)findViewById(R.id.btn_msg_send);
sendButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
String msg= sendMessage.getText().toString();
if(msg.length()>0){
SendMessageHandle(msg);
sendMessage.setText("");
sendMessage.clearFocus();
InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(sendMessage.getWindowToken(), 0);
}else{
Toast.makeText(mContext, "消息发送失败", Toast.LENGTH_SHORT).show();
sendMessage.setText("");
sendMessage.clearFocus();
}
}
});
if(Bluetooth.joinChatRoom.get(address)) {
Log.d("StartClient","join again");
mreadThread = new readThread();
mreadThread.start();
}else{
Log.d("StartClient","first time join");
startClient = new clientThread();
startClient.start();
}
}
private class clientThread extends Thread {
@Override
public void run() {
try {
Message msg2 = new Message();
msg2.obj = "正在加入"+device.getName()+"的聊天室";
msg2.what = 2;
LinkDetectedHandler.sendMessage(msg2);
//创建一个Socket连接：只需要服务器在注册时的UUID号
socket = Bluetooth.joinChatRoomSocket.get(address);
//连接
socket.connect();
Bluetooth.joinChatRoomSocket.put(address,socket);
Bluetooth.joinChatRoom.put(address,true);
// new IsNotConnected().start();
//启动接受数据
mreadThread = new readThread();
mreadThread.start();
}
catch (IOException e)
{
Bluetooth.joinChatRoom.put(address,false);
Message msg = new Message();
msg.obj = "加入聊天室失败，请断开重试";
msg.what = 2;
LinkDetectedHandler.sendMessage(msg);
}
}
}
//读取数据
private class readThread extends Thread {
@Override
public void run() {
Log.d("StartClient","read buffer");
byte[] buffer = new byte[1024];
int bytes;
InputStream mmInStream = null;
try {
mmInStream = Bluetooth.joinChatRoomSocket.get(address).getInputStream();
} catch (IOException e1) {
e1.printStackTrace();
}
while (true) {
try {
// Read from the InputStream
if ((bytes = mmInStream.read(buffer)) > 0) {
byte[] buf_data = new byte[bytes];
for (int i = 0; i < bytes; i++) {
buf_data[i] = buffer[i];
}
String s = new String(buf_data);
Log.d("ReceiveMessage",s+"-------");
if(s.equals("MARLBORO")){
continue;
}
Message message = new Message();
message.obj = s;
message.what = 1;
LinkDetectedHandler.sendMessage(message);
}
} catch (IOException e) {
try {
mmInStream.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
break;
}
}
}
}
private Handler LinkDetectedHandler = new Handler() {
//what = 0发送的消息
//what = 1接受的消息
//what = 2公共消息
@Override
public void handleMessage(Message msg) {
Log.d("ReceiveMessage", msg.obj + " " + msg.what);
SimpleDateFormat formatter = new SimpleDateFormat("yyy-MM-dd HH:mm:ss");
nowTime = formatter.format(new Date(System.currentTimeMillis()));
list.add(new ChatListItem((String) msg.obj, nowTime, msg.what));
Log.d("ReceiveMessage","list size"+list.size());
Log.d("ReceiveMessage","adddddddddddd");
mAdapter.notifyDataSetChanged();
mListView.setSelection(list.size() - 1);
}
};
private void SendMessageHandle(String msg){
Log.d("StartClient","send message"+msg);
try {
OutputStream outputStream = Bluetooth.joinChatRoomSocket.get(address).getOutputStream();
outputStream.write(msg.getBytes());
} catch (Exception e) {}
Message m = new Message();
m.obj = msg;
m.what = 0;
LinkDetectedHandler.sendMessage(m);
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
// TODO Auto-generated method stub
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
}
public class joinChatListItem {
String message;
Integer flag;
public joinChatListItem(String msg, Integer f) {
message = msg;
flag = f;
}
}
}
//adapter
package wk.bluetooth;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import wk.bluetooth.StartServer.ChatListItem;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
/**
Created by wk on 2015/5/4.
*/
public class ChatAdapter extends BaseAdapter {
private ArrayList list;
private LayoutInflater mInflater;public ChatAdapter(Context context, ArrayList l) {
list = l;
mInflater = LayoutInflater.from(context);
}@Override
public int getCount() {
return list.size();
}@Override
public Object getItem(int position) {
return list.get(position);
}@Override
public long getItemId(int position) {
return position;
}@Override
public int getItemViewType(int position) {
return position;
}@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder = null;
int[] textView ={R.id.send_text,R.id.receive_text,R.id.receive_text};
int[] imageView = {R.id.send_head_image,R.id.receive_head_image, R.id.receive_head_image};
int[] layout = {R.layout.send_message,R.layout.receive_message, R.layout.receive_message};
Log.d("ChatAdapter","hhhhhhhhhhhhhhhhhhhh");
ChatListItem item=list.get(position);
Log.d("ChatAdapter","item.flag "+item.flag+"item.mes "+item.message);
// if(convertView == null){
Log.d("ChatAdapter","--"+item.message+" -- "+ item.flag);
convertView = mInflater.inflate(layout[item.flag], null);
viewHolder=new ViewHolder(
// convertView.findViewById(R.id.list_child),
(TextView) convertView.findViewById(textView[item.flag])
, (TextView) convertView.findViewById(R.id.message_time)
,(ImageView) convertView.findViewById(imageView[item.flag])
);
convertView.setTag(viewHolder);
//}//else{ // Log.d("ChatAdapter","nullllllllllll"); // viewHolder = (ViewHolder)convertView.getTag(); //} if(item.flag==2){ Log.d("ChatAdapter",item.message+"--"+item.flag); viewHolder.time.setText(item.message); viewHolder.msg.setVisibility(View.GONE); viewHolder.img.setVisibility(View.GONE); }else { viewHolder.msg.setVisibility(View.VISIBLE); viewHolder.img.setVisibility(View.VISIBLE); viewHolder.time.setText(item.time); viewHolder.msg.setText(item.message); } return convertView;}
class ViewHolder {
protected TextView msg;
protected TextView time;
protected ImageView img;public ViewHolder(TextView message, TextView t, ImageView im){ this.msg = message; this.time = t; this.img = im; }}
}
我能收到socket发送的消息，但是我多次调用这个activity后 list没有add数据adapter也没有调用
只要没有点返回之类的按钮，list应该是不断增大了。先跟踪看看list没有增加的原因吧