Comments by GaryDoo (Top 23 by date)

can I ask you, do you know how to set autofocus on the camera? I have set it so that if the device is running greater than Gingerbread to implement touch to focus, however, I can't get the device to autofocus if lower than that...would you have any ideas?

thank you ridoy!!! I set p to the camera parameters and it works...thank you, although I had noticed that I have implemented this in the correct sequence whereas with the other method I had not, I had called it after my startpreview....anyway, thank you, it's much appreciated

p being the camera parameters?

thanks! it nearly broke my brain though!

I am so sorry, I don't know if it's tiredness or looking at the code too long...of course if (happyRating.get(i - 1) < happyRating.size()) doesn't work, that is a really stupid mistake!! I'm sorry about that!! thank you for explaining the slope logic! so will the correct slope calculation be used in the weighting calculation?

Also just to ask the question differently, why are you saying i+1 in the if statement?

That's the last question! Thanks for your help

Hi Nira, thank you for your reply. Would you mind explaining further to me about rewriting the logic to go forward instead of backwards? I don't just want to copy and paste something and not have a full understanding of it first.

Also why would you have if ((i + 1) < happyRating.size()) instead of just i or happyRating.get(i)?

Regards,
gary

@Prasad, thank you for your reply, unfortunately I still get the same issue...

Thank you for your reply Filpe, I have set both counter and j as global, I can adjust this. In relation to the counter, I want the user to make 10 submissions, so each time the user clicks submit, the counter increases, is this not the correct way of tracking it?
by changing

if (happyRating.get(i - 1) < happyRating.size()) to if ((i - 1) < happyRating.size())

I still get the error.

@Prasad, could I just put distance = child.distanceTo(parent) within the while (s.isConnected()) loop? That way, when the socket is connected is will repeatedly get checked? Or could you see any potential issues with this?

Hi Prasad,

Thank you for your help, I've attempted what I have under stood from your reply. Something like this? String provider = LocationManager.GPS_PROVIDER;
Location location = locationManager.getLastKnownLocation(provider);
Platitude = location.getlatitude(); Plongitude = location.getLongitude(); Location child = new Location("point A"); //INITIALIZING CHILD LOCATION

child.setLatitude(Clatitude); //SETTING CHILD LOCATION LAT & LONG
child.setLongitude(Clongitude);

Location parent = new Location("point B"); //INITIALIZING CHILD LOCATION

parent.setLatitude(Platitude); //SETTING CHILD LOCATION LAT & LONG
parent.setLongitude(Plongitude);

float distance = child.distanceTo(parent); All within my runnable rec? (apologies for the layout of my reply, it won't allow me to format my input)


Or is there another option?

if I pass coordinates from a point at the other end of the country I still get a reading of 9. something. This surely can't be right?

my apologies Prasad, it was an oversight on my behalf, I was testing with a simple string and had forgotten to comment it out, it was this that was causing me errors as it was trying to split a string with no ","!!!


However, if I could I would like to ask your advice, is there anyway for me to test that these 'Clatitude' and 'Clongitude' are correct? Is there any way to display them for testing purpose? I am trying to calculate the distance and display it, I am using the following code
(should I open a new discussion?)

public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
Location parent = new Location("parent");

Platitude = location.getLatitude();
Plongitude = location.getLongitude();

parent.setLatitude(Platitude / 1e6);
parent.setLongitude(Plongitude / 1e6);

Location child = new Location("child");

child.setLatitude(Clatitude / 1e6);
child.setLongitude(Clongitude / 1e6);

distance = parent.distanceTo(child);

String distanceSt = String.valueOf(distance);

TextView myTextview = (TextView) findViewById(R.id.distTo);
myTextview.setText(distanceSt);
}
}
I am testing with a mobile device and an emulator. I sent test coordinates to the emulator an I got a result of 9.5 meters, so to test I input the coordinates of my mobile device and I get a distance of 9.3 meters where I'm sure this should be zero.

Can you see where I'm going wrong?

Regards,
Gary

Prasad...I've tried to implement this, but I seem to get errors...

String[] Loc = location.split(",");
double Clatitude = Double.parseDouble(Loc[0]);
double Clongitude = Double.parseDouble(Loc[1]);

These are the lines of code I am using to split the string and then to parse them to doubles, does this look incorrect to you?

Hi Prasad, thank you for your speedy reply, I had looked at parseDouble already, however, this issue I was having was that there are two doubles within the one string a latitude double and a longitude double. I'm wondering how, when I have the following line of code

double lat = double.parseDouble(location);

do I extract or parse one of the doubles? i.e. the latitude double?


I have used tcp/ip sockets to transmit the coordinates, now as I've said I'm quite inexperienced in android/java, could you explain the JSON structure method or separator method?

Regards,
Gary

sorry Pascal, that was an error with me posting my code across, both ports are the same.

So I declare a socket on the client side like

Socket mySocket = new Socket();

After that I'm not sure, I can't seem to find much on the connect() function. Would you mind giving me a few more pointers? I'm sorry to be such a headache!

@ Pascal-78

Thank you for your quick response, unfortunately I've been offline for the past few days. I have changed this, and unfortunately it still doesn't work. I've created a simple server and client in java, and it works, as both server and machine is on the same machine. So I'm wondering is there some other issue? I am very grateful for your help thus far, if you would have any thoughts I'd really appreciate it.

In this line I'm putting in the ip of the client(phone) and port number?
<pre>s = new Socket("192.168.1.3", 2001); </pre>

I just really want to make sure I'm correct on this as it's really giving me a headache and I'm not sure how to fix it :(

I'm reposting the server and client code below now that it's edited.

CLIENT

<pre>import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Scanner;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class Client extends Activity {

private Socket s;
private PrintWriter p;
TextView display;
Button test;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
test = (Button) findViewById(R.id.test);
display = (TextView) findViewById(R.id.Sdisplay);

test.setOnClickListener(new View.OnClickListener() {

//@SuppressWarnings("unused")
public void onClick(View v) {
// TODO Auto-generated method stub

try {
s = new Socket("192.168.1.3", 2001); // connect to server
OutputStream o = s.getOutputStream();
p = new PrintWriter(o);
InputStream in = s.getInputStream();
Scanner r = new Scanner(in);

p.println("Gary");
p.flush();

} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
});

}
}</pre>

SERVER

<pre>import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;



public class Additional_Server {

public static void main(String[] args) throws Exception {


Socket s;
ServerSocket ss = new ServerSocket(2012);

//serverSocket = new ServerSocket(2001); // Server socket


System.out.println("Server started. Listening to the port 2001");



while (true) {
try {
System.out.println("Server: waiting for connection ..");
s = ss.accept();
InputStream in = s.getInputStream();
Scanner r = new Scanner(in);
// OutputStream o = s.getOutputStream();
// PrintWriter p = new PrintWriter(o);

String inputLine;
inputLine = r.nextLine();
System.out.println("Hello " + inputLine + " from Gary");
// p.close();



} catch (IOException ex) {
System.out.println("Problem in message reading");
}
}

}
} </pre>

Again, my thanks for any further help you or anyone can provide to me

Regards,
Gary