Power Vibrator Customization

Overview

Introduction

OpenHarmony provides the vibrator customization function for the power service. Specifically, you can modify the vibrator configuration file of the power service so that vibration is triggered when the dialog for device power-off is displayed.

Basic Concepts

Constraints

The device must be equipped with a vibrator.

How to Develop

Setting Up the Environment

Hardware requirements:

Development board running the standard system, for example, the DAYU200 open source suite and connected to a vibrator

Environment requirements:

For details about the requirements on the Linux environment, see Quick Start.

Getting Started with Development

The following uses the DAYU200 development board as an example to illustrate power-off vibration customization.

1. Write the custom power_vibrator.json file by referring to the power_vibrator.json file in the default folder of battery vibrator configuration. For example:

   {
   "shutdown_diag": {
       "enable": true,
       "type": "haptic.long_press.heavy"
       }
   }

   • shutdown_diag: name of the vibration scenario, which cannot be changed.

   • enable: whether to enable vibration. The value true indicates that vibration is enabled, and the value false indicates the opposite. The default value is false.

   • type: vibration type. The default value is haptic.long_press.heavy in the current mode.

2. Build the customized version by referring to Quick Start.

   ./build.sh --product-name rk3568 --ccache

3. Burn the customized version to the DAYU200 development board.

Commissioning and Verification

Press and hold the power button. The power-off dialog is displayed, and the device vibrates.

Reference

Default Power-off Vibration Configuration