Awesome Open Source
Awesome Open Source

Rumble-4-Android

r4a abstracts away the annoying Android Vibrator API which suffers from a number of issues:

  • Different versions of android have deprecated or added different functions and you are expected to know which ones to use depending on the device version.
  • You have to make a new object for every single vibration you want to run.
  • Patterns are tedious and not intuitive.

Instead...

Setup (easy!)

  1. Download Rumble.java and place it anywhere in the source directory of your project.
  2. Add the line <uses-permission android:name="android.permission.VIBRATE" /> inside the manifest tag of your project's AndroidManifest.xml.
  3. Call Rumble.init(applicationContext) and pass it your application's Context. For example, you can place the following code in your activity:

MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState)  {
    super.onCreate(savedInstanceState);
    Rumble.init(getApplicationContext());
}

Use (fluent!)

One-time device vibration java Rumble.once(500); // Vibrate for 500 milliseconds.

Patterns

Rumble.makePattern()  
    .beat(300)  
    .rest(250)  
    .beat(720)  
    .playPattern();

Repeating patterns

Rumble.makePattern()  
    .rest(200)
    .beat(30) 
    .beat(holdDuration) // Automatically adds to previous beat.
    .playPattern(4);      // Play 4 times in a row.

Save patterns for later

RumblePattern pattern = Rumble.makePattern()
    .beat(30).rest(150).beat(40).rest(40);
	
pattern.rest(80).beat(700); // Add to a pattern later.
pattern.playPattern();      // Play it whenever you like.

Lock patterns to prevent mutation

pattern.lock();
pattern.playPattern(3);     // Works just fine.
pattern.beat(500).rest(250) // Throws IllegalStateException.

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