Book Image

Phonegap Essentials

By : Ivan Turkovic
Book Image

Phonegap Essentials

By: Ivan Turkovic

Overview of this book

Table of Contents (15 chapters)

The Device Orientation plugin

The Device Orientation plugin has access to the device's compass. The compass acts as a sensor that displays the direction or heading that the device is pointed to; usually it is located on the top of the device. The compass sensor measures the heading in degrees from 0 to 359.99 degrees, where 0 denotes north.

To install the plugin, you need to run the following command:

phonegap plugin add cordova-plugin-device-orientation

The Device Orientation plugin provides a global navigator.compass object that is available only after the deviceready event is fired, so you need to listen for that event before doing any action or readings with the compass sensor:

document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {

The Device Orientation plugin has the following methods:

  • navigator.compass.getCurrentHeading

  • navigator.compass.watchHeading

  • navigator.compass.clearWatch

With this plugin, you need to...