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1.1. Determining Whether the Device Is Ready > Solution
Solution
The core functionalities that PhoneGap makes accessible through the JavaScript API depend on the device being ready; however, JavaScript can begin working as soon as the Document Object Model (DOM) is available. Therefore, before you perform any API call, you must ensure that PhoneGap has determined that the device is ready for use.
There are two solutions for checking whether the device is ready. For iOS, Android, and BlackBerry (version 5.0 and higher), a custom event type that you can attach to the DOM is available, and PhoneGap will trigger this event when the device is ready.
Warning
For older versions of BlackBerry, PhoneGap is unable to fire the custom event, so you must perform a basic JavaScript interval check for a Boolean variable to indicate whether PhoneGap is ready or not.