java - Android L - Floating Action Button (FAB) -


did google released defined style or component new circular fab button or should implement design on own?

the button described here: google design | floating action buttons

edit (05/2015): check lukas' answer / gabriele's answer showing easy way implement design support library.

update: there's official widget fab: floatingactionbutton, see gabriele mariotti reply full information.

according adam powell , chet haase didn't create widget fab button cause it's easy component reproduce.

there question in google io 2014 speech "google i/o 2014 - material science: developing android applications material design", @ end of speech (at 37:50) there question, can hear here: https://www.youtube.com/watch?v=lsh9akxjgt8#t=2280

chet haase says there's roundedbitmapdrawable (i didn't check if that's name) should job of defining outline.

but can own drawable, set elevation , define circle outline programmatically.

this should give round button shadow on l release. think you'll have build shadow pre-l on own.

i should check code cardview see how reproduce shadow pre-l. i'll that, not have time now. if no 1 pops in details i'll after i've found time go , check up.

edit:

gabriele mariotti (see answer below, thank you) added code show how it.

thanks @shomeser comments, wrote library make fab button:

https://github.com/shamanland/floating-action-button

to use it:

dependencies {     compile 'com.shamanland:fab:0.0.3' }

you can read answer question: how can add new "floating action button" between 2 widgets/layouts


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