ExtraLayoutSpace of RecyclerView

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ExtraLayoutSpace of RecyclerView kyobashi.dex #2 @amyu_san

Transcript of ExtraLayoutSpace of RecyclerView

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ExtraLayoutSpace of RecyclerView

kyobashi.dex #2 @amyu_san

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ABOUT ME

▸ Name : Yuki Mima

▸ Twitter : @amyu_san

▸ github : amyu

▸ Work : Android App Engineer

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Why do you use RecyclerView

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I can not be implemented in the ListView

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TEXT

The good point of RecyclerView

▸ Easy implementation of Animation

▸ Easy implementation of Animation

▸ Easy implementation of Animation

▸ Easy implementation of Animation

▸ Easy implementation of pre-load

▸ Easy implementation of Cache

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What is ExtraLayoutSpace

▸ The amount of extra space that should be laid out by LayoutManager.

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ExtraLayoutSpace = 0

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https://www.youtube.com/watch?v=1xMNmMjqEbI

https://www.youtube.com/watch?v=1xMNmMjqEbI
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ExtraLayoutSpace = Display Heigh

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https://www.youtube.com/watch?v=4c7ZID7yjII

https://www.youtube.com/watch?v=4c7ZID7yjII
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TEXT

How to implement

▸ Override the LinearLayoutManager#getExtraLayoutSpace

Returns the amount of extra space that should be laid out by LayoutManager.

By default, LinearLayoutManager lays out 1 extra page of items while smooth scrolling and 0 otherwise.

You can override this method to implement your custom layout pre-cache logic.

protected int getExtraLayoutSpace (RecyclerView.State state)

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Laying out invisible elements will eventually come with performance cost!

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But it improves user experience!!!!

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Try to use!


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