i am making an app that passes some command to a socket. the app has a list
of the sockets i can pass commands to. it also has the option to set
schedule on when to pass a command to socket/s. passing command from the
adapter is ok, but passing from the activity from the schedule throws npe.
i wonder why this happens even though those codes are the same.
here's those codes;
public void willSend (final int type, final String ip, final String port, final
int pin_id, final int status) {
new Thread(new Runnable() {
@Override
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(ip);
socket = null;
if(socket == null) {
socket = new Socket(serverAddr, Integer.parseInt(port));
}
} catch (Exception ex) {
}
if (type == 1) {
sendOpen(socket, pin_id, status);
}else {
sendClose(socket, pin_id, status);
}
}
}).start();
}
public void sendOpen (Socket socket, int pinid, int status) {
OutputStream output;
try {
abc[2] = (byte)pin_number;
abc[3] = OPEN;
if (socket.isConnected()) {
output = socket.getOutputStream();
output.write(abc);
output.flush();
//output.close();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
}
}
public void sendClose (Socket socket, int pinid, int status) {
OutputStream output;
try {
abc[2] = (byte)pin_number;
abc[3] = CLOSE;
if (socket.isConnected()) {
output = socket.getOutputStream();
output.write(abc);
output.flush();
//output.close();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
please help me. i don't know how to fix this anymore.
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