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How do I use this android app

Posted on 2013-05-22
Medium Priority
Last Modified: 2013-06-04
Ok this is a dumb question so sorry in advance.
I have the android SDK and eclipse.
I found this script to interface arduino and android but dont have the first clue on how to import it into the eclipse or run it on my phone.  
I do have my phone connected to the SDK and have been able to run other android demo apps.
code here: http://pastebin.com/a7wPqA3d
topic here: http://forum.arduino.cc/index.php?topic=157621.msg1248849#msg1248849

    package com.example.myApp;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.util.UUID;
    import android.app.Activity;
    import android.bluetooth.BluetoothAdapter;
    import android.bluetooth.BluetoothDevice;
    import android.bluetooth.BluetoothSocket;
    import android.os.Bundle;
    import android.os.Handler;
    import android.util.Log;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.Button;
    import android.widget.TextView;
    import android.widget.Toast;
    import android.widget.ToggleButton;
    public class Main extends Activity implements OnClickListener {
            Button Connect;
            ToggleButton OnOff;
            TextView Result;
            private String dataToSend;
            private static final String TAG = "Jon";
            private BluetoothAdapter mBluetoothAdapter = null;
            private BluetoothSocket btSocket = null;
            private OutputStream outStream = null;
            private static String address = "XX:XX:XX:XX:XX:XX";
            private static final UUID MY_UUID = UUID
            private InputStream inStream = null;
        Handler handler = new Handler();
        byte delimiter = 10;
        boolean stopWorker = false;
        int readBufferPosition = 0;
        byte[] readBuffer = new byte[1024];
            protected void onCreate(Bundle savedInstanceState) {
                    Connect = (Button) findViewById(R.id.connect);
                    OnOff = (ToggleButton) findViewById(R.id.tgOnOff);
                    Result = (TextView) findViewById(R.id.msgJonduino);
                    BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
                    Log.e("Jon", device.toString());
            public void onClick(View control) {
                    switch (control.getId()) {
                    case R.id.connect:
                    case R.id.tgOnOff:
                            if (OnOff.isChecked()) {
                                    dataToSend = "1";
                            } else if (!OnOff.isChecked()) {
                                    dataToSend = "0";
            private void CheckBt() {
                    mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
                    if (!mBluetoothAdapter.isEnabled()) {
                            Toast.makeText(getApplicationContext(), "Bluetooth Disabled !",
                    if (mBluetoothAdapter == null) {
                                            "Bluetooth null !", Toast.LENGTH_SHORT)
                    public void Connect() {
                            Log.d(TAG, address);
                            BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
                            Log.d(TAG, "Connecting to ... " + device);
                            try {
                                    btSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
                                    Log.d(TAG, "Connection made.");
                            } catch (IOException e) {
                                    try {
                                    } catch (IOException e2) {
                                            Log.d(TAG, "Unable to end the connection");
                                    Log.d(TAG, "Socket creation failed");
            private void writeData(String data) {
                    try {
                            outStream = btSocket.getOutputStream();
                    } catch (IOException e) {
                            Log.d(TAG, "Bug BEFORE Sending stuff", e);
                    String message = data;
                    byte[] msgBuffer = message.getBytes();
                    try {
                    } catch (IOException e) {
                            Log.d(TAG, "Bug while sending stuff", e);
            protected void onDestroy() {
                            try {
                            } catch (IOException e) {
            public void beginListenForData()   {
                     try {
                                    inStream = btSocket.getInputStream();
                            } catch (IOException e) {
                    Thread workerThread = new Thread(new Runnable()
                        public void run()
                           while(!Thread.currentThread().isInterrupted() && !stopWorker)
                                    int bytesAvailable = inStream.available();                        
                                    if(bytesAvailable > 0)
                                        byte[] packetBytes = new byte[bytesAvailable];
                                        for(int i=0;i<bytesAvailable;i++)
                                            byte b = packetBytes[i];
                                            if(b == delimiter)
                                                byte[] encodedBytes = new byte[readBufferPosition];
                                                System.arraycopy(readBuffer, 0, encodedBytes, 0, encodedBytes.length);
                                                final String data = new String(encodedBytes, "US-ASCII");
                                                readBufferPosition = 0;
                                                handler.post(new Runnable()
                                                    public void run()
                                                            if(Result.getText().toString().equals("..")) {
                                                            } else {
                                                            /* You also can use Result.setText(data); it won't display multilines
                                                readBuffer[readBufferPosition++] = b;
                                catch (IOException ex)
                                    stopWorker = true;

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Question by:livegirllove
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1 Comment
LVL 12

Accepted Solution

PCableGuy earned 2000 total points
ID: 39189726
Hi livegirllove,

Best way to do that is start a new Android Application Project under File->New in Eclipse. Then create the GUI in the res/layout section on Eclipse, name it activity_main.xml so it matches the Class code that you posted. Looks like the GUI uses one Button named Connect, one ToggleButton named OnOff, and a TextView named Result.

Then make a Class named Main under src/your.package.name in Eclipse and delete all the code that Eclipse automatically puts in there except for the package your.package.name line.

Then copy/paste the code that you posted into that Main class that you just cleared. You won't need the package com.example.myApp; line, don't copy/paste that line. Save the Main class.

That's the short version, but it will get you started in the right direction.

Feel free to post some questions back for further discussion.

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