Develop a program for providing bluetooth connectivity

activity_main.xml
<RelativeLayout xmlns:androclass="http://schemas.android.com/apk/res/android" 
 xmlns:tools="http://schemas.android.com/tools" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 tools:context=".MainActivity" > 
 
 <TextView android:text="" 
 android:id="@+id/out" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content"> 
 </TextView> 
 <Button 
android:id="@+id/button1" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:layout_alignParentLeft="true" 
 android:layout_alignParentTop="true" 
 android:layout_marginLeft="30dp" 
 android:layout_marginTop="49dp" 
 android:text="TURN_ON" /> 
 
 <Button 
 android:id="@+id/button2" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:layout_alignLeft="@+id/button1" 
 android:layout_below="@+id/button1" 
 android:layout_marginTop="27dp" 
 android:text="DISCOVERABLE" /> 
 
 <Button 
 android:id="@+id/button3" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:layout_alignLeft="@+id/button2" 
 android:layout_below="@+id/button2" 
 android:layout_marginTop="28dp" 
 android:text="TURN_OFF" /> 
 
</RelativeLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:androclass="http://schemas.android.com/apk/res/android" 
 package="com.example.bluetooth" 
 android:versionCode="1" 
 android:versionName="1.0" > 
 
 <uses-sdk 
 android:minSdkVersion="8" 
 android:targetSdkVersion="16" /> 
 <uses-permission android:name="android.permission.BLUETOOTH" /> 
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> 
 <application 
 android:allowBackup="true" 
 android:icon="@drawable/ic_launcher" 
 android:label="@string/app_name" 
 android:theme="@style/AppTheme" > 
<activity 
 android:name="com.example.bluetooth.MainActivity" 
 android:label="@string/app_name" > 
 <intent-filter> 
 <action android:name="android.intent.action.MAIN" /> 
 <category android:name="android.intent.category.LAUNCHER" /> 
 </intent-filter> 
 </activity> 
 </application> 
</manifest> 
MainActivity.java
package com.example.bluetooth; 
import android.os.Bundl
import android.os.Bundle; 
import android.util.Log; 
import android.view.View; 
import android.widget.Button; 
import android.widget.TextView; 
import android.widget.Toast; 
 
public class MainActivity extends Activity { 
 private static final int REQUEST_ENABLE_BT = 0; 
 private static final int REQUEST_DISCOVERABLE_BT = 0; 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.activity_main); 
 final TextView out=(TextView)findViewById(R.id.out); 
 final Button button1 = (Button) findViewById(R.id.button1); 
 final Button button2 = (Button) findViewById(R.id.button2); 
 final Button button3 = (Button) findViewById(R.id.button3); 
 final BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); 
 if (mBluetoothAdapter == null) { 
 out.append("device not supported"); 
 } 
 button1.setOnClickListener(new View.OnClickListener() { 
 public void onClick(View v) { 
 if (!mBluetoothAdapter.isEnabled()) { 
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); 
 startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT); 
 }
 } 
 }); 
 button2.setOnClickListener(new View.OnClickListener() { 
 @Override 
public void onClick(View arg0) { 
 if (!mBluetoothAdapter.isDiscovering()) { 
 //out.append("MAKING YOUR DEVICE DISCOVERABLE"); 
 Toast.makeText(getApplicationContext(), "MAKING YOUR DEVICE DISCOVERA
BLE", 
 Toast.LENGTH_LONG); 
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVER
ABLE); 
 startActivityForResult(enableBtIntent, REQUEST_DISCOVERABLE_BT); 
 
 } 
 } 
 }); 
 button3.setOnClickListener(new View.OnClickListener() { 
@Override 
 public void onClick(View arg0) { 
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 mBluetoothAdapter.disable(); 
 //out.append("TURN_OFF BLUETOOTH"); 
Toast.makeText(getApplicationContext(), "TURNING_OFF BLUETOOTH", Toast.LENGT
H_LONG); 
 } 
 }); 
@Override 
 public boolean onCreateOptionsMenu(Menu menu) { 
// Inflate the menu; this adds items to the action bar if it is present. 
 getMenuInflater().inflate(R.menu.activity_main, menu); 
 return true; 
 } 
 
}