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Fixes to fast scroller

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Using android back gesture no longer sometimes jump the screen
Fix issue when sometimes dragging fastscroll tries to drag to the top on release
This commit is contained in:
Jays2Kings 2021-04-24 14:09:49 -04:00
parent 0327accecb
commit bc760cf7b1
3 changed files with 28 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
app/src/main/java/eu/kanade/tachiyomi/ui/base/MaterialFastScroll.kt
View File

@ -9,6 +9,7 @@ import androidx.recyclerview.widget.RecyclerView
import androidx.recyclerview.widget.StaggeredGridLayoutManager import androidx.recyclerview.widget.StaggeredGridLayoutManager
import eu.davidea.fastscroller.FastScroller import eu.davidea.fastscroller.FastScroller
import eu.kanade.tachiyomi.R import eu.kanade.tachiyomi.R
import eu.kanade.tachiyomi.util.system.dpToPx
import eu.kanade.tachiyomi.util.system.dpToPxEnd import eu.kanade.tachiyomi.util.system.dpToPxEnd
import eu.kanade.tachiyomi.util.view.marginTop import eu.kanade.tachiyomi.util.view.marginTop
import kotlin.math.abs import kotlin.math.abs
@ -53,7 +54,7 @@ class MaterialFastScroll @JvmOverloads constructor(context: Context, attrs: Attr
} }
MotionEvent.ACTION_MOVE -> { MotionEvent.ACTION_MOVE -> {
val y = event.y val y = event.y
if (!canScroll && abs(y - startY) > 10) { if (!canScroll && abs(y - startY) > 15.dpToPx) {
canScroll = true canScroll = true
handle.isSelected = true handle.isSelected = true
notifyScrollStateChange(true) notifyScrollStateChange(true)
@ -69,6 +70,22 @@ class MaterialFastScroll @JvmOverloads constructor(context: Context, attrs: Attr
MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> { MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> {
startY = 0f startY = 0f
canScroll = false canScroll = false
val newEvent = MotionEvent.obtain(event)
recyclerView.post {
// Mimic touch event for recycler so it doesn't scroll back
val lastTag = recyclerView.tag
recyclerView.tag = noUpdate
newEvent.action = MotionEvent.ACTION_MOVE
recyclerView.dispatchTouchEvent(newEvent)
val newEvent2 = MotionEvent.obtain(newEvent)
newEvent2.action = MotionEvent.ACTION_CANCEL
recyclerView.dispatchTouchEvent(newEvent2)
newEvent2.recycle()
newEvent.recycle()
recyclerView.post {
recyclerView.tag = lastTag
}
}
} }
} }
return super.onTouchEvent(event) return super.onTouchEvent(event)
@ -91,7 +108,10 @@ class MaterialFastScroll @JvmOverloads constructor(context: Context, attrs: Attr
scrollOffset scrollOffset
) )
} else { } else {
(layoutManager as LinearLayoutManager).scrollToPositionWithOffset(targetPos, scrollOffset) (layoutManager as LinearLayoutManager).scrollToPositionWithOffset(
targetPos,
scrollOffset
)
} }
updateBubbleText(targetPos) updateBubbleText(targetPos)
} }
@ -114,4 +134,8 @@ class MaterialFastScroll @JvmOverloads constructor(context: Context, attrs: Attr
} }
} }
} }
companion object {
const val noUpdate = "don't update scroll"
}
} }

1
app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt
View File

@ -219,6 +219,7 @@ class LibraryController(
private var scrollListener = object : RecyclerView.OnScrollListener() { private var scrollListener = object : RecyclerView.OnScrollListener() {
override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) { override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
super.onScrolled(recyclerView, dx, dy) super.onScrolled(recyclerView, dx, dy)
if (recyclerView.tag == MaterialFastScroll.noUpdate) return
val recyclerCover = binding.recyclerCover val recyclerCover = binding.recyclerCover
if (!recyclerCover.isClickable && isAnimatingHopper != true) { if (!recyclerCover.isClickable && isAnimatingHopper != true) {
if (preferences.autohideHopper().get()) { if (preferences.autohideHopper().get()) {

1
app/src/main/java/eu/kanade/tachiyomi/util/view/ControllerExtensions.kt
View File

@ -251,6 +251,7 @@ fun Controller.scrollViewWith(
object : RecyclerView.OnScrollListener() { object : RecyclerView.OnScrollListener() {
override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) { override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
super.onScrolled(recyclerView, dx, dy) super.onScrolled(recyclerView, dx, dy)
if (recyclerView.tag == MaterialFastScroll.noUpdate) return
if (router?.backstack?.lastOrNull() if (router?.backstack?.lastOrNull()
?.controller() == this@scrollViewWith && statusBarHeight > -1 && ?.controller() == this@scrollViewWith && statusBarHeight > -1 &&
activity != null && activityBinding!!.appBar.height > 0 && activity != null && activityBinding!!.appBar.height > 0 &&