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The event fires when there is a change in the battery status.
window.addEventListener("batterystatus", yourCallbackFunction, false);
This event fires when the percentage of battery charge changes by at least 1 percent, or if the device is plugged in or unplugged.
The battery status handler is passed an object that contains two properties:
level: The percentage of battery charge (0-100). (Number)
isPlugged: A boolean that indicates whether the device is plugged in. (Boolean)
Applications typically should use window.addEventListener
to attach an event listener once the deviceready
event fires.
Windows Phone 7 does not provide native APIs to determine battery level, so the level
property is unavailable. The isPlugged
parameter is supported.
window.addEventListener("batterystatus", onBatteryStatus, false); function onBatteryStatus(info) { // Handle the online event console.log("Level: " + info.level + " isPlugged: " + info.isPlugged); }
<!DOCTYPE html> <html> <head> <title>Device Ready Example</title> <script type="text/javascript" charset="utf-8" src="cordova.js"></script> <script type="text/javascript" charset="utf-8"> // Wait for device API libraries to load // function onLoad() { document.addEventListener("deviceready", onDeviceReady, false); } // device APIs are available // function onDeviceReady() { window.addEventListener("batterystatus", onBatteryStatus, false); } // Handle the batterystatus event // function onBatteryStatus(info) { console.log("Level: " + info.level + " isPlugged: " + info.isPlugged); } </script> </head> <body onload="onLoad()"> </body> </html>