Show an error notification if the mobile device does not meet the requirements for jquery mobile version

Currently, I am in the process of creating a website using HTML5, CSS3, and jquerymobile. My goal is to have an error message appear saying "Your mobile browser does not support this application" if the page is not rendering correctly or if the jquery mobile styles are not being applied. Unfortunately, I haven't come across any helpful articles on this topic yet. Any assistance you can provide would be greatly appreciated.

For instance, the website functions perfectly on an iPhone but encounters issues on a Blackberry Bold device. In this case, I would like to display a message specifically for Blackberry Bold users as it seems that this device doesn't fully apply the jquery styles to its controls.

Thank you for your help!

jqueryhtmlcssjquery-mobile

Answer №1

There are a couple of ways to approach this situation.

1) One method I like to use is creating an HTML DIV with a message indicating that the browser cannot utilize jQuery, then using jQuery to hide it upon loading the page. This way, if jQuery is functioning properly, the user will not see the message.

2) Another option is to verify if jQuery has been loaded correctly and is functioning as expected. I often use this technique to check for the presence of jQuery on a page. It might be worth trying out in your case.

if (typeof jQuery != 'undefined' || typeof $ != 'function') {alert("This application may not function as intended in your browser.");}

I hope you find these suggestions helpful.

Answer №2

jQuery Mobile (JQM) includes a handy function called $.mobile.gradeA() that gives you a boolean value. If you're curious about which browsers support the "gradeA" feature in JQM 1.1.0, check out this list here.

if(!$.mobile.gradeA()){
    alert('Oops! Your mobile browser doesn't support this application.');
}

Update: It's worth mentioning that newer BlackBerry Bold devices now have gradeA support. Anything BlackBerry 7 and above should work just fine. Keep in mind that even if a device can run jQuery smoothly, it might not style things correctly due to lack of CSS3 support in some cases.

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