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the collapsing toolbar must expand to full screen when pulled down and must scroll back to intermediate position when pulled up (even slightly). and it must act normal when scrolled up as toolbar does.

i want to learn making ui like video in link given below please help what should i learn and do in order to achieve this ui:

https://drive.google.com/open?id=0B14wNBitoI33MUhWM05FYTZ2czQ

Fazal
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1 Answers1

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You need this CollapsingToolbar
It is available in Google Support Design Repositries

UPDATE:
Check this: Answer By MiguelHincapieC
Library: CustomBottomSheetBehavior

Ishaan Kumar
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    if i use collapsing toolbar the i can't use stickyscrollview in nested scrollview. then the view sticked to the bottom won't happen, so how do i pulldown action bar or collapsing toobar with gestures and expand – Fazal Oct 10 '17 at 05:41
  • Explain everything in the question what u want to achieve not step by step – Ishaan Kumar Oct 10 '17 at 05:43
  • and u can still use stickyscrollview with CollapsingToolbar – Ishaan Kumar Oct 10 '17 at 05:44
  • You will find your answer here https://stackoverflow.com/questions/35971546/how-to-handle-issues-of-the-new-bottom-sheet-of-the-support-design-library/37443680#37443680 – Ishaan Kumar Oct 12 '17 at 11:35