When trying to connect to my laptop via android app it keeps craching here is the logcat
02-14 21:22:29.307 354-375/? D/STATUSBAR-NotificationService﹕ Noti Alert - mSystemReady:true, AlertEnabled:true
02-14 21:22:29.393 14395-14395/ligandfas.rasptest I/System.out﹕ Starting startruuning
02-14 21:22:29.393 14395-14395/ligandfas.rasptest I/System.out﹕ starting Estabco
02-14 21:22:29.393 14395-14395/ligandfas.rasptest I/System.out﹕ trying to connect...
02-14 21:22:29.393 14395-14395/ligandfas.rasptest I/System.out﹕ keep going192.168.43.22
02-14 21:22:29.401 14395-14395/ligandfas.rasptest I/System.out﹕ Closing Connection...
02-14 21:22:29.401 14395-14395/ligandfas.rasptest D/AndroidRuntime﹕ Shutting down VM
02-14 21:22:29.401 14395-14395/ligandfas.rasptest W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41e2f2a0)
02-14 21:22:29.409 447-447/? D/StatusBar﹕ expanding top notification at 5entry.userCollapsed() = false
02-14 21:22:29.424 14395-14395/ligandfas.rasptest E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:3698)
at android.view.View.performClick(View.java:4222)
at android.view.View$PerformClick.run(View.java:17337)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at android.view.View$1.onClick(View.java:3693)
at android.view.View.performClick(View.java:4222)
at android.view.View$PerformClick.run(View.java:17337)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at ligandfas.rasptest.Network.closeConnection(Network.java:38)
at ligandfas.rasptest.Network.startRunning(Network.java:70)
at ligandfas.rasptest.MainActivity.controlRasp(MainActivity.java:22)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at android.view.View$1.onClick(View.java:3693)
at android.view.View.performClick(View.java:4222)
at android.view.View$PerformClick.run(View.java:17337)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4895)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
and her is my code i have two classes
package ligandfas.rasptest;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
public class MainActivity extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void controlRasp(View view){
String mes = "loool";
String ip = "192.168.43.22";
Network net = new Network(ip,mes);
System.out.println("Starting startruuning");
net.startRunning();
}
}
and the Network class
package ligandfas.rasptest;
import java.io.*;
import java.net.*;
public class Network {
private Socket sock ;
private String serverIP,mes;
private ObjectOutputStream output;
public Network(String host,String lol){
serverIP=host;
mes=lol;
}
private void EstabCo() throws IOException {
System.out.println("trying to connect...");
System.out.println("keep going"+serverIP);
sock= new Socket(InetAddress.getByName(serverIP), 6789);
System.out.println("sock passed");
System.out.println("Connection Established! Connected to: " + sock.getInetAddress().getHostName());
}
private void SetupStreams () throws IOException{
System.out.println("Settingup Streams");
output= new ObjectOutputStream(sock.getOutputStream());
output.flush();
System.out.println("Streams set UP");
}
private void closeConnection(){
System.out.println("Closing Connection...");
try{
output.close();
sock.close();
}catch(IOException ioException){
ioException.printStackTrace();
}
System.out.println("Connexion succesffully closed");
}
private void sendMessage(String message){
System.out.println("Sending Message ...");
try{
output.writeObject(message);
output.flush();
}catch(IOException ioException){
System.out.println("\n Oops! Something went wrong!");
}
}
public void startRunning(){
try{
System.out.println("starting Estabco");
EstabCo();
System.out.println("Passed Estabco");
SetupStreams();
sendMessage(mes);
}catch(EOFException eofException){
System.out.println("\n Client terminated the connection");
}catch(IOException ioException){
ioException.printStackTrace();
}finally{
closeConnection();
}
}
}
I think tha this line is the problem i just can't figure it out
sock= new Socket(InetAddress.getByName(serverIP), 6789);
