What is the most effective choice between utilizing background images or CSS3 gradients in Phonegap development?

Consider a scenario where I am incorporating a DIV element and contemplating whether to incorporate a background image or replicate the style with a CSS3 gradient. In the context of Phonegap applications, where all image files are stored within the device itself, which alternative would be more advantageous?

This query arises from observations indicating that gradients can consume computational resources, potentially leading to slower loading times compared to images. However, in the case of Phonegap apps, the concern regarding image loading times may be mitigated. Therefore, opting for using an image alone might offer better performance under these circumstances.

Answer №1

An informative article on the Webkit Wiki suggests that using images is more efficient:

It can be tempting to utilize webkit's drawing features, such as -webkit-gradient, even when they are not essential. Handling images through Photoshop and other drawing tools may seem like a hassle. However, resorting to CSS for these tasks could shift this burden from the designer's computer to the user's CPU. It is recommended to use gradients, shadows, and other decorative elements in CSS only when absolutely necessary (e.g., when the shape is dynamic based on content). Otherwise, static images generally offer better performance. In some cases, especially on low-end platforms, it might be preferable to use static images for text if feasible.

Source:

Naturally, one must consider balancing CPU usage with the additional time required to load images from the server. Additionally, filters in Internet Explorer can be notably slow, particularly if multiple filters are applied on one page.

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