batterycritical

This is an event that fires when a Cordova application detects the battery has reached the critical level threshold.

window.addEventListener("batterycritical", yourCallbackFunction, false);

Details

This event that fires when a Cordova application detects the percentage of battery has reached the critical battery threshold. This value is device specific.

The batterycritical handler will be called with an object that contains two properties:

  • level: The percentage of battery (0-100). (Number)
  • isPlugged: A boolean that represents whether or not the device is plugged in or not. (Boolean)

Typically, you will want to attach an event listener with window.addEventListener once you receive the Cordova 'deviceready' event.

Supported Platforms

  • iOS
  • Android
  • BlackBerry WebWorks (OS 5.0 and higher)
  • Tizen

Quick Example

window.addEventListener("batterycritical", onBatteryCritical, false);

function onBatteryCritical(info) {
    // Handle the battery critical event
    alert("Battery Level Critical " + info.level + "%\nRecharge Soon!"); 
}

Full Example

<!DOCTYPE html>
<html>
  <head>
    <title>Cordova Battery Critical Example</title>

    <script type="text/javascript" charset="utf-8" src="cordova-x.x.x.js"></script>
    <script type="text/javascript" charset="utf-8">

    // Call onDeviceReady when Cordova is loaded.
    //
    // At this point, the document has loaded but cordova-x.x.x.js has not.
    // When Cordova is loaded and talking with the native device,
    // it will call the event `deviceready`.
    // 
    function onLoad() {
        document.addEventListener("deviceready", onDeviceReady, false);
    }

    // Cordova is loaded and it is now safe to make calls Cordova methods
    //
    function onDeviceReady() {
        window.addEventListener("batterycritical", onBatteryCritical, false);
    }

    // Handle the batterycritical event
    //
    function onBatteryCritical(info) {
        alert("Battery Level Critical " + info.level + "%\nRecharge Soon!"); 
    }

    </script>
  </head>
  <body onload="onLoad()">
  </body>
</html>