When the Source code not found error comes up have you hit F7? That should step over that java source code for android that you don't have(not a problem) and return you back to your code. Then you can hit F5 until it comes back to Source code not found. let me know what happens. If you feel like providing me a private email address feel free to.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of raqz Sent: Thursday, April 08, 2010 2:27 AM To: Android Developers Subject: [android-developers] Re: Trying to start a thread dedicated to sending and receiving data Tommy, thanks for helping me out man. I just tried debugging. I entered android:debuggable="true" in the manifest and started debugging. I placed a breakpoint at the beginning of the code so that I can see what happens right from the start. But the output just says "Source not found" Class file Editor. I dont know what is going wrong. Would you mind helping me out one time. I can share my system with you. On Apr 8, 2:14 am, "Tommy" <[email protected]> wrote: > when that happens hit F7 one time. It should pop you back out to your code. > Then hit F5 until you get that screen...Rinse and repeat :) > > -----Original Message----- > From: [email protected] > > [mailto:[email protected]] On Behalf Of raqz > Sent: Thursday, April 08, 2010 2:10 AM > To: Android Developers > Subject: [android-developers] Re: Trying to start a thread dedicated to > sending and receiving data > > I started it in debug mode. But when I click on 'f5' it says Source > Not Found > > On Apr 8, 1:55 am, "Tommy" <[email protected]> wrote: > > Well in order to help I need to know what is causing the > > NullPointerException. You need to set up a break point at the start of > your > > code and step through(f5) Keep an eye on the code b/c at some point it > will > > error out and the line of code it was on right before then is the one > giving > > the issue. > > > -----Original Message----- > > From: [email protected] > > > [mailto:[email protected]] On Behalf Of raqz > > Sent: Thursday, April 08, 2010 1:47 AM > > To: Android Developers > > Subject: [android-developers] Re: Trying to start a thread dedicated to > > sending and receiving data > > > The errors are as below > > > java.lang.NullPointerException > > at com.getFriends.ConnectSocket.sendData(ConnectSocket.java:43) > > > I am not sure why its giving such an error. > > > Please help. > > > Thanks, > > Raqeeb > > > On Apr 8, 1:41 am, "Tommy" <[email protected]> wrote: > > > What line does the debug catch the error? Have you stepped through to > see > > > what line causes the exception to throw? > > > > -----Original Message----- > > > From: [email protected] > > > > [mailto:[email protected]] On Behalf Of raqz > > > Sent: Thursday, April 08, 2010 1:37 AM > > > To: Android Developers > > > Subject: [android-developers] Trying to start a thread dedicated to > > sending > > > and receiving data > > > > Hi, > > > > I have a main class activity that does the task of sending control to > > > other activities on click of a button. I am also starting a thread in > > > the main class. This thread basically sets up a connection with the > > > server and is active throughout the lifetime of the application. > > > I have two functions in the thread class, send and receive data from > > > server. Therefore, when the other activities need to send/receive data > > > from server, they use those particular functions. > > > First of all please let me know if what I am trying to do is fine as > > > per the architecture of the operating system. If its fine, when I try > > > to run the code, the app crashes and i see a NullPointerException and > > > a RuntimeException in the DDMS log. > > > Could some one please help me out in this or suggest a better way to > > > implement the concept. > > > Also, please be assured that, the other functionality of the code > > > works perfectly fine. > > > The main class code is as below > > > [code] > > > package com.getfriends; > > > > import java.util.ArrayList; > > > import java.util.Iterator; > > > import java.util.List; > > > import java.util.StringTokenizer; > > > import android.app.Activity; > > > import android.app.ListActivity; > > > import android.os.Bundle; > > > import android.widget.ArrayAdapter; > > > import android.widget.ListView; > > > import android.widget.Toast; > > > > public class GetFriendsActivity extends Activity{ > > > > private MyFriend obj= new MyFriend(); > > > List<MyFriend> listOfFriends = new > ArrayList<MyFriend>(); > > > > int i=0; > > > private String FName=null; > > > private String LName=null; > > > private String Latitude=null; > > > private String Longitude=null; > > > private String TimeStamp=null; > > > public static ArrayList<String> namesArray=new > > > ArrayList<String>(); > > > > public void onCreate(Bundle savedInstanceState) { > > > super.onCreate(savedInstanceState); > > > Thread cThread= null; > > > try{ > > > cThread = new Thread(new ConnectSocket()); > > > cThread.start();} > > > catch (Exception e){ > > > Toast.makeText(getBaseContext(), > > > "Unable to start thread", > > > Toast.LENGTH_LONG).show(); > > > > } > > > Toast.makeText(getBaseContext(), > > > "Starting", > > > Toast.LENGTH_LONG).show(); > > > > try { > > > getFriendsList(); > > > } catch (Exception e) { > > > Toast.makeText(getBaseContext(), > > > "Unable to fetch friend > list:"+e.getMessage(), > > > Toast.LENGTH_LONG).show(); > > > e.printStackTrace(); > > > } > > > try { > > > displayFriendsList(); > > > } catch (Exception e) { > > > Toast.makeText(getBaseContext(), > > > "Unable to display friend > > list:"+e.getMessage() > > > +e.getLocalizedMessage(), > > > Toast.LENGTH_LONG).show(); > > > e.printStackTrace(); > > > } > > > ConnectSocket socket = new ConnectSocket(); > > > > socket.sendData("ABCDEF"); > > > String k = socket.recieveData(); > > > Toast.makeText(getBaseContext(), > > > "Recieved from server:"+k, > > > Toast.LENGTH_LONG).show(); > > > > } > > > > private void getFriendsList() { > > > > String line[] = new String[3]; > > > line[0]= > > > "Abdul#Raqeeb#23.44#34.44#4.45"; > > > line[1]= > > > "Abdul#Azeez#33.44#44.44#5.45"; > > > line[2]= > > > "Kiral#Azeez#53.44#454.44#6.45"; > > > for(int k=0;k<=2;k++){ > > > StringTokenizer tokens=new > > > StringTokenizer(line[k],"#"); > > > try{ > > > while(tokens.hasMoreTokens()) > > > { > > > FName=tokens.nextToken(); > > > LName=tokens.nextToken(); > > > Latitude=tokens.nextToken(); > > > Longitude=tokens.nextToken(); > > > TimeStamp=tokens.nextToken(); > > > listOfFriends.add(new > > > MyFriend(FName,LName,Latitude,Longitude,TimeStamp)); > > > } > > > } > > > catch (Exception e){ > > > Toast.makeText(this, > > > "Some prob > > > here:"+e.getLocalizedMessage(), > > > > Toast.LENGTH_SHORT).show(); > > > e.printStackTrace(); > > > } > > > } > > > > } > > > > } > > > > [/code] > > > > The code related to the thread is > > > [code] > > > package com.getfriends; > > > > import java.io.BufferedReader; > > > import java.io.DataOutputStream; > > > import java.io.IOException; > > > import java.io.InputStreamReader; > > > import java.net.InetAddress; > > > import java.net.Socket; > > > > import android.util.Log; > > > > public class ConnectSocket implements Runnable{ > > > /** Called when the activity is first created. */ > > > > public String fromServer=null; > > > public static BufferedReader inFromServer=null; > > > public static Socket clientSocket=null; > > > public InetAddress address =null; > > > public static DataOutputStream outToServer=null; > > > > @Override > > > public void run(){ > > > > try { > > > address = InetAddress.getByName("127.0.0.1"); > > > Log.d("TCP", "C: Connecting..."); > > > clientSocket = new Socket(address, 9999); > > > outToServer = new > > > DataOutputStream(clientSocket.getOutputStream()); > > > inFromServer = new BufferedReader(new > > > InputStreamReader(clientSocket.getInputStream())); > > > } catch (Exception e) { > > > System.out.println("Not Connected to the > > internet"); > > > } > > > > } > > > > public void sendData(String s){ > > > try { > > > if(s.equals(null)) s="hello"; > > > > > ... > > read more » -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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