Hi *friends*, Myself *Sumanta* is facing problem while *compilation* of a particular *source code* for *APP development* in *Android Studio 2.2*. The error obtained is as below:
1) *Error parsing xml*: *no element found*. The source code is as below: Activity: [ package Android.Arduino.Bluetooth; import android.app.Activity;import android.bluetooth.BluetoothAdapter;import android.bluetooth.BluetoothDevice;import android.bluetooth.BluetoothSocket;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.view.View;import android.widget.TextView;import android.widget.EditText; import android.widget.Button;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.util.Set;import java.util.UUID; public class MainActivity extends Activity{TextView myLabel;EditText myTextbox;BluetoothAdapter mBluetoothAdapter;BluetoothSocket mmSocket;BluetoothDevice mmDevice;OutputStream mmOutputStream;InputStream mmInputStream;Thread workerThread;byte[] readBuffer;int readBufferPosition;int counter;volatile boolean stopWorker; @Overridepublic void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.main); Button openButton = (Button)findViewById(R.id.open); Button sendButton = (Button)findViewById(R.id.send); Button closeButton = (Button)findViewById(R.id.close); myLabel = (TextView)findViewById(R.id.label); myTextbox = (EditText)findViewById(R.id.entry); //Open Button openButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { try { findBT(); openBT(); } catch (IOException ex) { } } }); //Send Button sendButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { try { sendData(); } catch (IOException ex) { } } }); //Close button closeButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { try { closeBT(); } catch (IOException ex) { } } });} void findBT(){ mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); if(mBluetoothAdapter == null) { myLabel.setText("No bluetooth adapter available"); } if(!mBluetoothAdapter.isEnabled()) { Intent enableBluetooth = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBluetooth, 0); } Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices(); if(pairedDevices.size() > 0) { for(BluetoothDevice device : pairedDevices) { if(device.getName().equals("MattsBlueTooth")) { mmDevice = device; break; } } } myLabel.setText("Bluetooth Device Found");} void openBT() throws IOException{ UUID uuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); //Standard SerialPortService ID mmSocket = mmDevice.createRfcommSocketToServiceRecord(uuid); mmSocket.connect(); mmOutputStream = mmSocket.getOutputStream(); mmInputStream = mmSocket.getInputStream(); beginListenForData(); myLabel.setText("Bluetooth Opened");} void beginListenForData(){ final Handler handler = new Handler(); final byte delimiter = 10; //This is the ASCII code for a newline character stopWorker = false; readBufferPosition = 0; readBuffer = new byte[1024]; workerThread = new Thread(new Runnable() { public void run() { while(!Thread.currentThread().isInterrupted() && !stopWorker) { try { int bytesAvailable = mmInputStream.available(); if(bytesAvailable > 0) { byte[] packetBytes = new byte[bytesAvailable]; mmInputStream.read(packetBytes); 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() { myLabel.setText(data); } }); } else { readBuffer[readBufferPosition++] = b; } } } } catch (IOException ex) { stopWorker = true; } } } }); workerThread.start();} void sendData() throws IOException{ String msg = myTextbox.getText().toString(); msg += "\n"; mmOutputStream.write(msg.getBytes()); myLabel.setText("Data Sent");} void closeBT() throws IOException{ stopWorker = true; mmOutputStream.close(); mmInputStream.close(); mmSocket.close(); myLabel.setText("Bluetooth Closed");}} ] And the layout: [ <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="fill_parent"android:layout_height="fill_parent"tools:ignore="TextFields,HardcodedText" > <TextView android:id="@+id/label" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Type here:" /> <EditText android:id="@+id/entry" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/label" android:background="@android:drawable/editbox_background" /> <Button android:id="@+id/open" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_below="@id/entry" android:layout_marginLeft="10dip" android:text="Open" /> <Button android:id="@+id/send" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignTop="@id/open" android:layout_toLeftOf="@id/open" android:text="Send" /> <Button android:id="@+id/close" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignTop="@id/send" android:layout_toLeftOf="@id/send" android:text="Close" /> ] Can anyone address the above issue ? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. To post to this group, send email to android-developers@googlegroups.com. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/6a54a3a3-42fb-4f90-923b-9798742d3d86%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.