Enable/Disable BlueTooth (Android)

On Launch

on BlueTooth Enable

on BlueTooth Disable

Create new Android Project

Project Name: System Settings

//tested from 2.3.3 to current android sdk 

Build Target: Android 2.3.3   //or greater than that

Application Name: SystemSettings

Package Name: com.shaikhhamadali.blogspot.systemsettings

Create layout file: activity_Blue_tooth

  1. create layout:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >

    <TextView
        android:id="@+id/TVBlueTooth"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="90dp"
        android:text="Blue Tooth: Disable"
        android:textColor="#1BD6E0"
        android:textSize="40sp" />

    <ToggleButton
        android:id="@+id/tBBlueTooth"
        android:layout_width="300dp"
        android:layout_height="150dp"
        android:layout_centerInParent="true"
        android:textSize="30sp"
        android:textOff="Enable"
        android:textOn="Disable" />

</RelativeLayout>

• Add Permission in Manifest:

<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

2. code of activity:

package com.shaikhhamadali.blogspot.systemsettings;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
import android.widget.ToggleButton;

public class BlueTooth_Toggle extends Activity{
 // constants
 static final String STATUS_ON = "Blue Tooth: Enable";
 static final String STATUS_OFF = "Blue Tooth: Disable";

 static final String TURN_ON = "Enable";
 static final String TURN_OFF = "Disable";

 // controls
 TextView TVBlueTooth;
 ToggleButton tBBlueTooth;

 //variable
 BluetoothAdapter mBluetoothAdapter; 
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_blue_tooth);

  // load controls
  TVBlueTooth=(TextView)findViewById(R.id.TVBlueTooth);
  tBBlueTooth=(ToggleButton)findViewById(R.id.tBBlueTooth);

  // set click event for button
  tBBlueTooth.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    // check current state first
    boolean state = isBlueToothEnable();
    // toggle the state
    if(state)toggleBlueTooth(false);
    else toggleBlueTooth(true);
    // update UI to new state
    updateUI(!state);  

   }
  });
 }
 public void updateUI(boolean state) {
  //set text according to state
  if(!state) {
   TVBlueTooth.setText(STATUS_OFF);
   tBBlueTooth.setText(TURN_ON);           
  } else {
   TVBlueTooth.setText(STATUS_ON);
   tBBlueTooth.setText(TURN_OFF);  

  }
 }
 public boolean isBlueToothEnable() {
  //get status of blue tooth
  mBluetoothAdapter=BluetoothAdapter.getDefaultAdapter();
  return  mBluetoothAdapter.isEnabled();
 }

 public void toggleBlueTooth(boolean stat){

  mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
  if (stat) {
   mBluetoothAdapter.enable(); 
  } 
  else{
   mBluetoothAdapter.disable();
  }
 }
}

3. note that:

• you can use this on button onclick,on action_down,on the fly etc.

• you can toggle more setting options refer my previous posts toggle Airplane Mode,toggle Mobile Data..

• about BlueTooth Adapter.

4. conclusion:

• Some information about how to toggle BlueTooth (Enable /Disable).

• Know how to update UI after toggle.

• know what is BlueTooth Adapter.

5. About the post:

• The code seems to explain itself due to comments, if you have any question you can ask too!

• Don’t mind to write a comment whatever you like to ask, to know,to suggest or recommend.

•  Hope you enjoy it!

6. Source Code:

        you can download the source code here

Cheers,

Hamad Ali Shaikh