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listview에서 문제가 발생했습니다. 서버에서 데이터를 가져 오는 중이고이 데이터를 구문 분석 한 후 listview에서 데이터를 표시하기 위해 사용자 정의 adpater를 사용하고 있습니다. 업데이트하고 싶습니다. 목록보기 항목을 각각 3 초 후에 list.how에 새로운 데이터를 추가 할 수 있습니다.몇 초 후에 서버에서 새 데이터를 가져올 때 listview 항목을 업데이트하는 방법
adapter.notifyDataSetChanged() 메소드를 사용하고 있지만 목록보기가 업데이트되지 않고 처음으로 가져 오는 이전 데이터가 표시됩니다. 목록 뷰에서 새 데이터를 표시하는 데 3 초가 걸렸습니다. 이런 식의 업데이트 방법.
private Handler handler = new Handler();
private Runnable updater = new Runnable() {
public void run() {
/*
* Update the list
*/
//list.clearTextFilter();
getVisitorDetailFromServer();
list.invalidateViews();
adapter.notifyDataSetChanged();
try {
Log.i("UPDATE", "Handler called");
// searchAdapter = getFeed(URL);
adapter.notifyDataSetChanged();
handler.postDelayed(this, 3000);
} catch(Exception e) {
Log.e("UPDATE ERROR", e.getMessage());
}
}
};
getVisitorDetailFromServer()를 사용하여 데이터를 가져옵니다.
어댑터 클래스 코드가
개인 클래스 CustomAdapter가 BaseAdapter { 개인 LayoutInflater에서 mInflater을 확장;
public CustomAdapter(Context context) {
mInflater = LayoutInflater.from(context);
}
public void setContext(Context context) {
// TODO Auto-generated method stub
//caching. notifyDataSetChanged();
}
public int getCount() {
return sizeoflist;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(final int position, View convertView, ViewGroup parent) {
final ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.row1, null);
holder = new ViewHolder();
holder.IP = (TextView) convertView.findViewById(R.id.ip);
holder.duration = (TextView) convertView.findViewById(R.id.duration);
holder.status =(TextView) convertView.findViewById(R.id.status);
holder.noOfVisit = (TextView) convertView.findViewById(R.id.NoOfvisit);
holder.invite =(Button)convertView.findViewById(R.id.btnjoin);
holder.deny = (Button) convertView.findViewById(R.id.btndeny);
holder.deny.setVisibility(View.INVISIBLE);
holder.invite.setId(position);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
String result = response;
String delimiter = "<fld>";
String delimiter1 = "<ln>";
String delimiter2 = "<blk>";
String delimiter3 = "<fld><fld><blk>";
operatorDetail = result.split(delimiter1);
String[] operatorlist = result.split(delimiter3);
noofvisitors = operatorlist[1].split(delimiter2);
System.out.println("no of visitor================"+noofvisitors[0]);
for(int i=0;i<operatorDetail.length;i++){
operatorList = operatorDetail[i].split(delimiter);
operatorlist = result.split(delimiter2);
SessionText.add(operatorList[0]);
IPText.add(operatorList[1]);
DurationText.add(operatorList[4]);
StatusText.add(operatorList[3]);
NoOfVisit.add(operatorList[2]);
ButtonText.add(operatorList[6]);
iptext = IPText.get(i) ;
sessionid = SessionText.get(i);
//System.out.println("session value is"+SessionText.get(position));
//System.out.println("ip values are"+IPText.get(position));
//System.out.println("duration values are"+DurationText.get(position));
//System.out.println("status values are"+StatusText.get(position));
//System.out.println("no of visit"+NoOfVisit.get(position));
if(StatusText.get(position).equalsIgnoreCase("chat request")){
holder.deny.setVisibility(View.VISIBLE);
holder.invite.setText("Accept");
holder.invite.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
holder.invite.setText("Join");
holder.deny.setVisibility(View.INVISIBLE);
}
});
}
else{
holder.invite.setText("Invite");
holder.deny.setVisibility(View.INVISIBLE);
}
if(holder.invite.getText().equals("Join")){
holder.invite.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
chatRequest(iptext,sessionid);
}
});
}
holder.IP.setText(IPText.get(position));
holder.duration.setText(DurationText.get(position));
holder.status.setText(StatusText.get(position));
holder.noOfVisit.setText(NoOfVisit.get(position));
//---------------------When user click on invite Button---------------------
holder.invite.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
callToServer(SessionText.get(position));
}
});
//-----------------------------When user click on deny button------------------------
holder.deny.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
refuseToServer(sessionid);
holder.deny.setVisibility(View.INVISIBLE);
}
});
}
System.out.println("no of visitor================"+noofvisitors[0]);
convertView.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
Intent i=new Intent(Visitors.this,VisitorDetail.class);
i.putExtra("ID", id);
i.putExtra("Position",position);
i.putExtra("From", from);
i.putExtra("SessionText", SessionText.get(position));
i.putExtra("IPTEXT",IPText.get(position));
startActivity(i);
}});
//startService();
return convertView;
}
class ViewHolder {
TextView IP;
TextView duration;
Button deny;
TextView status;
TextView noOfVisit;
Button invite;
}
}
내 클래스 코드가 공용 클래스 방문객 인 활동을 {확장
private ListView list;
private final int NOTIFICATION_ID = 1010;
private Timer timer = new Timer();
private String response,response1;
protected Dialog m_ProgressDialog;
String[] operatorList,operatorDetail,operatordetail,tempoperatordata;
String[] noofvisitors,opt;
private static final String DEB_TAG = "Error Message";
public static ArrayList<String> SessionText,IPText,DurationText;
private ArrayList<String> StatusText,NoOfVisit,ButtonText;
private int sizeoflist;
private String IP;
Context context;
public static String from,sessionid,id,text,iptext,status;
private int position,noofchat;
private boolean IsSoundEnable,IsChatOnly;
private Button logout;
private CustomAdapter adapter;
NotificationManager notificationManager;
final HashMap<String, String> postParameters = new HashMap<String, String>();
private String url;
private Handler handler = new Handler();
private Runnable updater = new Runnable() {
public void run() {
/*
* Update the list
*/
//list.clearTextFilter();
getVisitorDetailFromServer();
list.invalidateViews();
adapter.notifyDataSetChanged();
try {
adapter.notifyDataSetChanged();
handler.postDelayed(this, 3000);
} catch(Exception e) {
Log.e("UPDATE ERROR", e.getMessage());
}
}
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.visitor);
list = (ListView) findViewById(R.id.list01);
logout = (Button) findViewById(R.id.btnlogout);
adapter = new CustomAdapter(Visitors.this);
updater.run();
//-----------------Making the object of arrayList----------------
SessionText = new ArrayList<String>();
IPText = new ArrayList<String>();
DurationText = new ArrayList<String>();
StatusText = new ArrayList<String>();
NoOfVisit = new ArrayList<String>();
ButtonText = new ArrayList<String>();
Bundle extras = getIntent().getExtras();
if (extras != null) {
IsSoundEnable = Controls.IsSoundEnable;
IsChatOnly = Controls.IsChatOnly;
IsSoundEnable = extras.getBoolean("IsSoundOnly", Controls.IsSoundEnable);
IsChatOnly= extras.getBoolean("IsCOnlyhat", Controls.IsChatOnly);
extras.getString("From");
position=extras.getInt("Position");
}
}
@Override
protected void onStart() {
super.onStart();
//------------Getting the visitor detail-------------------------
getVisitorDetailFromServer();
//---------------When user click on logout button-----------------------------------
logout.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
logoutFromServer();
}
});
}
//----------------------------Getting the detail from server of monitoring window-------------------------
private void getVisitorDetailFromServer() {
// TODO Auto-generated method stub
if(IsChatOnly){
url = "http://sa.live2support.com/cpn/wz1-allonlineu.php?";
postParameters.put("adminid",Main.loginId.getText().toString());
postParameters.put("sid",Main.siteId.getText().toString());
postParameters.put("nvar","Y");
postParameters.put("conly", "Y");
}
else{
url = "http://sa.live2support.com/cpn/wz1-allonlineu.php?";
postParameters.put("adminid",Main.loginId.getText().toString());
postParameters.put("sid",Main.siteId.getText().toString());
postParameters.put("nvar","Y");
postParameters.put("conly", "N");
}
Runnable searchThread = new Runnable(){
public void run() {
// TODO Auto-generated method stub
try {
response = CustomHttpClient.executeHttpPost1(url,postParameters);
Log.i(DEB_TAG, "Requesting to server"+response);
//CustomHttpClient.getResponseInString(response);
System.out.println("Output of httpResponse:"+response);
String result = response;
String delimiter1 = "<ln>";
String delimiter = "<fld>";
operatorDetail = result.split(delimiter1);
for(int i=0;i<operatorDetail.length;i++){
operatorList = operatorDetail[i].split(delimiter);
SessionText.add(operatorList[0]);
IPText.add(operatorList[1]);
DurationText.add(operatorList[4]);
StatusText.add(operatorList[3]);
NoOfVisit.add(operatorList[2]);
ButtonText.add(operatorList[6]);
}
//--------Getting the size of the list---------------------
sizeoflist = operatorDetail.length;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(response!=null){
runOnUiThread(new Runnable() {
public void run() {
// TODO Auto-generated method stub
playsound3();
noofchat =0;
System.out.println(response);
list.setAdapter(adapter);
list.getDrawingCache(false);
list.invalidateViews();
list.setCacheColorHint(Color.TRANSPARENT);
list.requestFocus(0);
list.setSelected(false);
list.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
String item = ((TextView)view).getText().toString();
Toast.makeText(getBaseContext(), item, Toast.LENGTH_LONG).show();
}
});
if(IsChatOnly==false){
TimerTask timerTask = new TimerTask()
{
@Override
public void run()
{
//triggerNotification();
//playsound();
}
};
timer.schedule(timerTask, 3000);
}
else{
playsound();
}
}
});
}
else {
ShowAlert();
}
}
};
Thread thread = new Thread(null, searchThread, "MagentoBackground");
thread.start();
}
//--------------------When internet connection is failed show alert
private void ShowAlert() {
// TODO Auto-generated method stub
AlertDialog.Builder builder = new AlertDialog.Builder(this);
final AlertDialog alert = builder.create();
alert.setTitle("Live2Support");
alert.setMessage("Internet Connection failed");
alert.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
//startActivity(new Intent(CreateAccount.this,CreateAccount.class));
alert.dismiss();
}
});
alert.show();
}
//--------------------Play sound when notification occurs-------------------
private void playsound() {
// TODO Auto-generated method stub
MediaPlayer mp = MediaPlayer.create(this, R.raw.newvisitsound);
mp.start();
}
내 목록이 업데이트되지 않는 이유를 도와주십시오 .i 3 초 후 android에서 목록보기에 새 데이터를 추가하려고합니다. – nikki
어댑터 코드를 붙여 넣으십시오. – jeet
어댑터 클래스 코드는 – nikki