How to Vibrate your phone in Android Studio

 

The shortest code to make your phone vibrate is here.

First of all write the vibrate permission in the AndroidManifest.xml file

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

Then create a button in activity_main.xml

<Button
    android:id="@+id/pattern_vibration_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Trigger Pattern Vibration"/>

Now in the Java file:

Create an object of Vibrator and get the system's vibrator service

Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);

Check if the device supports vibrator

if (vibrator == null || !vibrator.hasVibrator()) {
    Toast.makeText(this, "Vibrator not supported on this device", Toast.LENGTH_SHORT).show();
    return;
}

Create a method to perform the vibration

private void triggerPatternVibration() {
    long[] pattern = {0, 200, 100, 300};

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        VibrationEffect effect = VibrationEffect.createWaveform(pattern, -1);
        vibrator.vibrate(effect);
    } else {
        // For devices with SDK < 26
        vibrator.vibrate(pattern, -1);  // -1 means no repeat
    }
    Toast.makeText(this, "Pattern Vibration Triggered", Toast.LENGTH_SHORT).show();
}

The patterns are in milli seconds and goes in this way: wait, vibrate, pause, vibrate.

Check the Build version.

Perform the vibration only once hence use -1.

Finally let the vibration be controlled through the button we created:

Button patternVibrationButton = findViewById(R.id.pattern_vibration_button);
patternVibrationButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        triggerPatternVibration();
    }
});

So here we are done with our code.

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The complete code:

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">
    <uses-permission android:name="android.permission.VIBRATE"/>

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.PhoneVibrate">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/pattern_vibration_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Trigger Pattern Vibration"/>

</LinearLayout>

MainActivity.java

package com.prashantsj.apps.phonevibrate;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;
import android.os.Build;
import android.os.VibrationEffect;
import android.os.Vibrator;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private Vibrator vibrator;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);

        if (vibrator == null || !vibrator.hasVibrator()) {
            Toast.makeText(this, "Vibrator not supported on this device", Toast.LENGTH_SHORT).show();
            return;
        }

        Button patternVibrationButton = findViewById(R.id.pattern_vibration_button);
        patternVibrationButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                triggerPatternVibration();
            }
        });
    }

    private void triggerPatternVibration() {
        long[] pattern = {0, 200, 100, 300};

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            VibrationEffect effect = VibrationEffect.createWaveform(pattern, -1);  // -1 means no repeat
            vibrator.vibrate(effect);
        } else {
            // For devices with SDK < 26
            vibrator.vibrate(pattern, -1);  // -1 means no repeat
        }
        Toast.makeText(this, "Pattern Vibration Triggered", Toast.LENGTH_SHORT).show();
    }

}