How to implement transparent layer to highlight UI elements in Android -

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is there library or tutorial how implement call application tutorial feature.

when user open activity first time - activity doesn't stops layer shown above custom ui , elements (that being highlighted) activity still visible.

if words seem unclear, @ first screenshots here: can see on first screens here http://www.android-app-patterns.com/apps/app/209

the library found https://github.com/amlcurran/showcaseview doesn't allow arbitrary ui, afaik.

i work this:

  1. create fragment in activity.
  2. create style fragment (transparent,picture and...).
  3. create sharedpreference method , save status true when user first time open app ,and show fragment.
  4. set in oncreate : if (status!=true){ - show fragment -}

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