How To Vibrate The Android Phone

Via : OpenAndroid.in
Tags : #Source_Code, #Tutorial
Orginal Post: How To Vibrate The Android Phone

How To Vibrate The Android Phone

In this tutorial we learn How to Vibrate a phone in default manner or in the pattern you want.

What we learn:
Service
Vibrating the Phone

Requires Knowledge:
Basic Android

To vibrate a phone we need following Permission Do not forget to declare this permission in Manifest.

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

We can Vibrate a Phone Using an Activity , Service and Using Threads.

Using Activity will not be a good Idea because it takes time to vibrate the Phone and an Activity always runs in foreground.

We will implement using Service because a Service runs in Background.

for we need to have an Object of Class Vibrator, we do not create the Object directly but we get Vibrate System Service.

Vibrator v = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);

Add <uses-permission android:name="android.permission.VIBRATE"/> in Your Manifest

So let's start.

Create a new Android Project "Vibrate Phone".
and edit the manifest and main.xml file

manifest file

main.xml

(to be inflated/used in VibrateMainActivity)

<LinearLayout 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:background="#99C2D6"
android:orientation="vertical">

<TextView
android:layout_marginTop="140dp"
android:layout_gravity="center_horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20dp"
android:text="Android Vibrate Service Example" />

<Button
android:id="@+id/buttonVibrate"
android:layout_marginTop="20dp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Vibrate" />

</LinearLayout>

When User clicks on Vibrate Button we will start a new Service which will vibrate the phone.

VibrateMainActivity .java

public class VibrateMainActivity extends Activity

@Override
public void onCreate(Bundle savedInstanceState)

super.onCreate(savedInstanceState);
setContentView(R.layout.main);

Button btnVibrate=(Button)findViewById(R.id.buttonVibrate);

// Set on click listener and start vibrate service when clicked on Button Vibrate

btnVibrate.setOnClickListener(new View.OnClickListener()

public void onClick(View arg0)
// TODO Auto-generated method stub

// Create a New Intent and start the service
Intent intentVibrate =new Intent(getApplicationContext(),VibrateService.class);
startService(intentVibrate);

);

And The Service Class

Do Not Forget To Declare the Service in Manifest like
<service android:name=".VibrateService"/>

public class VibrateService extends Service

@Override
public void onStart(Intent intent, int startId)

// TODO Auto-generated method stub
super.onStart(intent, startId);

Vibrator v = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);

// pass the number of millseconds fro which you want to vibrate the phone here we
// have passed 2000 so phone will vibrate for 2 seconds.

v.vibrate(2000);

// If you want to vibrate in a pattern
// long pattern[]=0,800,200,1200,300,2000,400,4000;
// 2nd argument is for repetition pass -1 if you do not want to repeat the Vibrate
// v.vibrate(pattern,-1);

Toast.makeText(getApplicationContext(), "Phone is Vibrating", Toast.LENGTH_LONG).show();

@Override
public IBinder onBind(Intent intent)

// TODO Auto-generated method stub
return null;

Point To Note:

long pattern[]=0,800,200,1200,300,2000,400,4000

this is pattern in which we want to Vibrate the Phone
first 0 means silent for 0 milisecond
800 means vibrate for 800 milisecond
200 means means silent for 200 milisecond
1200 means vibrate for 1200 miliseconds

and So On.

Via : OpenAndroid.in
Tags : #Source_Code, #Tutorial
Orginal Post: How To Vibrate The Android Phone