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In some business scenarios of mobile phone App, such as the user clicks a button to operate the vibration prompt or the scan code in the process of successful vibration prompt the user, is a good detail processing, this article to share with you the code implementation in Android.

1 Add permissions to the listing file

Add permissions to the manifest file androidmanifest.xml as follows

<uses-permission android:name="android.permission.VIBRATE" />
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2 Obtain system services

Get the Vibrator in your Activity:

  import android.os.Vibrator;
  private Vibrator mVibrator;
 // Vibration effect system service
  mVibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
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3. Vibration prompt effect

If the code scan is successful in service application scenarios, the user is prompted by a vibration:

 /* * Mode of vibration */
  // vibrator.vibrate(2000); // Vibrate for two seconds
  // Below is the vibration that can make the vibration regular -1: does not repeat 0: cycle vibration
  long[] pattern = {200.200 };
  mVibrator.vibrate(pattern, -1);
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For pattern, if defined as new int[200,400,600,800]

  • 200: indicates the number of milliseconds to wait before turning on the vibrator. 0.2 seconds.

  • 400: indicates the number of milliseconds to keep the vibrator on before turning it off, 0.4 seconds.

  • 600,800: Alternate between a few milliseconds to turn off the vibrator or turn on the vibrator, 0.6-0.8 seconds.

4. Talk more

The Vibrator, which comes with your phone, is a service provided by Android for vibration. For example, we can set up vibration reminder when mobile phone receives push message. Or login page function, the user input password or user name error, you can give a prompt and then shake.

// Turn off or stop the vibrator
mVibrator.cancel();
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// Check whether vibration is supported
mVibrator.hasVibrator()
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