From Forum Nokia Wiki

Scrolling is defined as sliding text, images, videos, etc on a webpage, application or a document, which cannot be fully shown on the screen at time.

Two types of scrolling designs may be employed,

• Continuous scrolling
• Page-by-page scrolling

In this article we shall use the Opera mini application as an example to illustrate both types of scrolling. Opera mini browser has both types of scrolling options available to its users.

Continuous scrolling

For Continuous scrolling it is required to avoid discontinuous movement/sliding of or in other words - to avoid jumps. For example, as shown in the image below, the webpage undergoes gradual uplift (the page moves upward) when the user scrolls by pressing/touching the down key or scrollbar. Similarly the page would move downward when the user presses/touches the up key.

Page-by-page scrolling

When a user needs to scroll quickly downwards or upward, page-by-page scrolling is preferred over continuous scrolling. In page-by-page scrolling when the user scrolls, the screen moves upward or downward respectively, screen by screen. For example, as shown in the image below, when the user presses the down key the screen moves downward.

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Submitted by Croozeus 17:31, 20 May 2009 (EEST)

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