Scrolling hide effect like on Firefox and Chrome

Question

Background

on Firefox and Chrome apps for Android, if the user scrolls down, the upper actionBar starts to disappear.

if the scrolling is fast enough , it starts an animation to finish the disappearing, but if not, it returns to its normal state.

and there is a similar effect for showing the action bar, only that it's for scrolling up.

The problem

I need to have the same ability to make a customized view that is on the top of the screen (looks a bit like an action bar but it's not).

a part of the view will always be visible, but a part of it will shrink like in the effect of chrome and firefox.

I've looked for libraries that allow such a thing but without any luck.

The question

How can I achieve this behavior?

My guess is that I need to use the scrolling listener of the adapterView , but then what?

I found same question, answered here: http://stackoverflow.com/a/24300984/3248051 — umni4ek, Jun 19 '14 at 08:03
Here http://stackoverflow.com/a/24457394/1188180 how you can make it with WebView and custom bar — Max_xt, Jun 27 '14 at 17:18

android developer · Answer 1 · 2013-10-02T09:42:16.637

2

I think this library can help, in the inner sample of "animation" :

https://github.com/LarsWerkman/QuickReturnListView

sadly i also use a customized pinterest-like listView, which doesn't report about scrolling (not states, but the real positions as you scroll). in fact it doesn't even extend from AdapterView.

edited Oct 02 '13 at 09:42

answered Oct 02 '13 at 07:39

android developer

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Scrolling hide effect like on Firefox and Chrome

Background

The problem

The question

1 Answers1