15/07/2015 Android Bluetooth Switch on/off programmatically

http://www.mysamplecode.com/2012/11/android-bluetooth-switch-onoff.html 1/3

MySampleCode Mashery API ManagementComplete and secure API management from Mashery, An Intel Company

Android Bluetooth Switch on/off programmatically

Bluetooth is a wireless technology standard for exchanging data over short distances, low-bandwidth peer-to-peer

communications, between mobile devices creating personal area networks (PANs) with high levels of security. The Bluetooth

device in Android is controlled via the BluetoothAdapter class. For the adatper to work you application manifest needs to include

the BLUETOOTH and the BLUETOOTH_ADMIN permission.

If you are going to use Bluetooth Scanner in your mobile application to scan barcodes then it will stop you from using the soft

keyboard unless a keyboard wedge is provided by the scanner company. So the only way to use the keyboard is to switch off the

bluetooth as the mobile device thinks that the scanner is as a bluetooth keyboard. The ablity to quickly switch off bluetooth and

switch it back on is needed if you want to both scan barcodes as well as use the keyboard in your app.

Android Manifest

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<?xml version="1.0" encoding="UTF-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.as400samplecode" android:versionCode="1" android:versionName="1.0"> <uses-sdk android:minSdkVersion="15" android:targetSdkVersion="15" /> <uses-permission android:name="android.permission.BLUETOOTH" /> <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme"> <activity android:name=".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>

Application Layout - activity_main.xml

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<?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="match_parent" android:layout_height="match_parent" android:padding="5dp"> <TextView android:id="@+id/status" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginTop="10dp" android:text="BlueTooth is currently switched OFF" android:textAppearance="?android:attr/textAppearanceMedium" android:textStyle="bold" /> <Button android:id="@+id/changeStatus" style="?android:attr/buttonStyleSmall" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_below="@+id/status" android:layout_marginTop="10dp" android:text="Switch ON Bluetooth" android:textStyle="bold" /> </RelativeLayout>

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15/07/2015 Android Bluetooth Switch on/off programmatically

http://www.mysamplecode.com/2012/11/android-bluetooth-switch-onoff.html 2/3

Application Activity - MainActivity.java

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package com.as400samplecode; import android.os.Bundle;import android.app.Activity;import android.bluetooth.BluetoothAdapter;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView; public class MainActivity extends Activity implements OnClickListener{ private BluetoothAdapter mBluetoothAdapter; private Button changeStatus; private TextView status; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //reference to the button changeStatus = (Button) findViewById(R.id.changeStatus); changeStatus.setOnClickListener(this); //reference to the text view status = (TextView) findViewById(R.id.status); //reference to the bluetooth adapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); //check if adatpter is available, please note if you running //this application in emulator currently there is no support for bluetooth if(mBluetoothAdapter == null){ status.setText("BlueTooth adapter not found"); changeStatus.setText("BlueTooth Disabled"); changeStatus.setEnabled(false); } //check the status and set the button text accordingly else { if (mBluetoothAdapter.isEnabled()) { status.setText("BlueTooth is currently switched ON"); changeStatus.setText("Switch OFF Bluetooth"); }else{ status.setText("BlueTooth is currently switched OFF"); changeStatus.setText("Switch ON Bluetooth"); } } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @Override public void onClick(View v) { switch (v.getId()) { case R.id.changeStatus: //disable the bluetooth adapter if (mBluetoothAdapter.isEnabled()) { mBluetoothAdapter.disable(); status.setText("BlueTooth is currently switched OFF"); changeStatus.setText("Switch ON Bluetooth"); } //enable the bluetooth adapter else{ mBluetoothAdapter.enable(); status.setText("BlueTooth is currently switched ON"); changeStatus.setText("Switch OFF Bluetooth"); } break; // More buttons go here (if any) ... } }}

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Tutorial Tags:  Android , BlueTooth

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4 comments :

Jay Tirouvengadam VinothKumar October 24, 2013 at 3:06 AM

I have a 7" ICS 4.0.4 android tablet pc with rooted can i block or remove permanently the wifi, bluetooth, hdmi, otg, sd card and

all communication's.

Please guide me...

Reply

Anonymous July 22, 2014 at 6:15 AM

It is an example of very good and for me, a good base for another important issue. Thank you and congratulations

Reply

Anonymous January 17, 2015 at 11:56 PM

Thank you very much for the guidence

Reply

trongvodang April 11, 2015 at 6:33 AM

See whether the subsidizing organization makes awards to people. Painstakingly consider this step in light of the fact that some

stipend producers provide for associations that serve people instead of specifically financing people.

Reply

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