RecycledViewPool

Transcript

1. RecycledViewPool @MoyuruAizawa
2. MoyuruAizawa Moyuru Aizawa
 Software engineer of CATS Div. CyberAgent Inc. 
 Previously at Pairs Div. Eureka Inc.
3. Recycler Scrap Heap 3FDZDMFS LayoutManager View View View Recycled ViewPool View View View Adapter RecyclerView
4. Recycler Scrap Heap 3FDZDMFS LayoutManager View View View Recycled ViewPool View View View Adapter RecyclerView
5. Recycler Scrap Heap 3FDZDMFS LayoutManager Recycled ViewPool View View View Adapter RecyclerView
6. Recycler Scrap Heap 3FDZDMFS LayoutManager Recycled ViewPool Adapter RecyclerView
7. 3FDZDMFE7JFX1PPM Recycled ViewPool
8. 3FDZDMFE7JFX1PPM Recycled ViewPool RecyclerView RecyclerView RecyclerView
9. 3FDZDMFE7JFX1PPM Activity
10. 3FDZDMFE7JFX1PPM Activity Fragment Fragment Fragment
11. 3FDZDMFE7JFX1PPM Activity Fragment Fragment Fragment Recycler View Recycler View Recycler View
12. 3FDZDMFE7JFX1PPM Activity Fragment Fragment Fragment Recycler View Recycler View Recycler View Recycled ViewPool
13. “To maximize view recycling we share the same view pool across all EpoxyRecyclerView instances in the same Activity.” BJSCOCFQPYZ
    
    &QPYZ3FDZDMFS7JFX
14. /BWJHBUJPO
15. class RecycledViewPoolFactory { private val viewPools = SparseArray<RecycledViewPool>() private fun create(lifecycleOwner: LifecycleOwner): RecycledViewPool { viewPools.get(lifecycleOwner.hashCode())?.let { return it } val viewPool = RecycledViewPool() viewPools.put(lifecycleOwner.hashCode(), viewPool) lifecycleOwner.lifecycle .addObserver(LifecycleEventObserver { _, event -> if (event == Lifecycle.Event.ON_DESTROY) { viewPool.clear() viewPools.remove(lifecycleOwner.hashCode()) } }) return viewPool } } 3FDZDMFE7JFX1PPM'BDUPSZ
16. class RecycledViewPoolFactory { private val viewPools = SparseArray<RecycledViewPool>() private fun create(lifecycleOwner: LifecycleOwner): RecycledViewPool { viewPools.get(lifecycleOwner.hashCode())?.let { return it } val viewPool = RecycledViewPool() viewPools.put(lifecycleOwner.hashCode(), viewPool) lifecycleOwner.lifecycle .addObserver(LifecycleEventObserver { _, event -> if (event == Lifecycle.Event.ON_DESTROY) { viewPool.clear() viewPools.remove(lifecycleOwner.hashCode()) } }) return viewPool } } 3FDZDMFE7JFX1PPM'BDUPSZ
17. class RecycledViewPoolFactory { private val viewPools = SparseArray<RecycledViewPool>() private fun create(lifecycleOwner: LifecycleOwner): RecycledViewPool { viewPools.get(lifecycleOwner.hashCode())?.let { return it } val viewPool = RecycledViewPool() viewPools.put(lifecycleOwner.hashCode(), viewPool) lifecycleOwner.lifecycle .addObserver(LifecycleEventObserver { _, event -> if (event == Lifecycle.Event.ON_DESTROY) { viewPool.clear() viewPools.remove(lifecycleOwner.hashCode()) } }) return viewPool } } 3FDZDMFE7JFX1PPM'BDUPSZ
18. class RecycledViewPoolFactory { private val viewPools = SparseArray<RecycledViewPool>() private fun create(lifecycleOwner: LifecycleOwner): RecycledViewPool { viewPools.get(lifecycleOwner.hashCode())?.let { return it } val viewPool = RecycledViewPool() viewPools.put(lifecycleOwner.hashCode(), viewPool) lifecycleOwner.lifecycle .addObserver(LifecycleEventObserver { _, event -> if (event == Lifecycle.Event.ON_DESTROY) { viewPool.clear() viewPools.remove(lifecycleOwner.hashCode()) } }) return viewPool } } 3FDZDMFE7JFX1PPM'BDUPSZ
19. class RecycledViewPoolFactory { private val viewPools = SparseArray<RecycledViewPool>() private fun create(lifecycleOwner: LifecycleOwner): RecycledViewPool { viewPools.get(lifecycleOwner.hashCode())?.let { return it } val viewPool = RecycledViewPool() viewPools.put(lifecycleOwner.hashCode(), viewPool) lifecycleOwner.lifecycle .addObserver(LifecycleEventObserver { _, event -> if (event == Lifecycle.Event.ON_DESTROY) { viewPool.clear() viewPools.remove(lifecycleOwner.hashCode()) } }) return viewPool } } 3FDZDMFE7JFX1PPM'BDUPSZ
20. class RecycledViewPoolFactory { private val viewPools = SparseArray<RecycledViewPool>() private fun create(lifecycleOwner: LifecycleOwner): RecycledViewPool { viewPools.get(lifecycleOwner.hashCode())?.let { return it } val viewPool = RecycledViewPool() viewPools.put(lifecycleOwner.hashCode(), viewPool) lifecycleOwner.lifecycle .addObserver(LifecycleEventObserver { _, event -> if (event == Lifecycle.Event.ON_DESTROY) { viewPool.clear() viewPools.remove(lifecycleOwner.hashCode()) } }) return viewPool } } 3FDZDMFE7JFX1PPM'BDUPSZ
21. class RecycledViewPoolFactory { private val viewPools = SparseArray<RecycledViewPool>() private fun create(lifecycleOwner: LifecycleOwner): RecycledViewPool { viewPools.get(lifecycleOwner.hashCode())?.let { return it } val viewPool = RecycledViewPool() viewPools.put(lifecycleOwner.hashCode(), viewPool) lifecycleOwner.lifecycle .addObserver(LifecycleEventObserver { _, event -> if (event == Lifecycle.Event.ON_DESTROY) { viewPool.clear() viewPools.remove(lifecycleOwner.hashCode()) } }) return viewPool } } 3FDZDMFE7JFX1PPM'BDUPSZ
22. Thank you