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Improve media album rail entrance animation.

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This commit is contained in:
Nicholas
2022-11-22 10:03:17 -05:00
committed by Cody Henthorne
parent 77be721f5a
commit a46fc96ff1
3 changed files with 12 additions and 13 deletions
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15
app/src/main/java/org/thoughtcrime/securesms/mediapreview/MediaPreviewV2Fragment.kt
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@@ -66,6 +66,7 @@ import org.thoughtcrime.securesms.util.ViewUtil
import org.thoughtcrime.securesms.util.visible
import java.util.Locale
import java.util.concurrent.TimeUnit
import kotlin.math.roundToInt
class MediaPreviewV2Fragment : Fragment(R.layout.fragment_media_preview_v2), MediaPreviewFragment.Events {
private val TAG = Log.tag(MediaPreviewV2Fragment::class.java)
@@ -78,9 +79,12 @@ class MediaPreviewV2Fragment : Fragment(R.layout.fragment_media_preview_v2), Med
private lateinit var fullscreenHelper: FullscreenHelper
private lateinit var albumRailAdapter: MediaRailAdapter
private var individualItemWidth: Int = 0
override fun onAttach(context: Context) {
super.onAttach(context)
fullscreenHelper = FullscreenHelper(requireActivity())
individualItemWidth = context.resources.getDimension(R.dimen.media_rail_item_size).roundToInt()
}
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
@@ -293,19 +297,14 @@ class MediaPreviewV2Fragment : Fragment(R.layout.fragment_media_preview_v2), Med
val currentItemPosition = albumRailAdapter.currentItemPosition
val currentList = albumRailAdapter.currentList
val albumRail: RecyclerView = binding.mediaPreviewPlaybackControls.recyclerView
var selectedItemWidth = -1
albumRail.scrollToPosition(currentItemPosition)
for (i in currentList.indices) {
val isSelected = i == currentItemPosition
val stableId = albumRailAdapter.getItemId(i)
val viewHolder = albumRail.findViewHolderForItemId(stableId) as? MediaRailAdapter.MediaRailViewHolder
if (viewHolder != null) {
viewHolder.setSelectedItem(isSelected)
if (isSelected) {
selectedItemWidth = viewHolder.itemView.width
}
}
viewHolder?.setSelectedItem(isSelected)
}
val offsetFromStart = (albumRail.width - selectedItemWidth) / 2
val offsetFromStart = (albumRail.width - individualItemWidth) / 2
val smoothScroller = OffsetSmoothScroller(requireContext(), offsetFromStart)
smoothScroller.targetPosition = currentItemPosition
val layoutManager = albumRail.layoutManager as LinearLayoutManager