TachiyomiCoordinatorLayout: Remove app bar lift mechanism for view pager (#6379)

This is a follow up to 845e061382
...jk i actually forgot about it
This commit is contained in:
Ivan Iskandar 2021-12-24 21:27:57 +07:00 committed by GitHub
parent 8aa402526a
commit 728e14e8e4
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@ -12,14 +12,12 @@ import androidx.core.view.doOnLayout
import androidx.customview.view.AbsSavedState
import androidx.lifecycle.coroutineScope
import androidx.lifecycle.findViewTreeLifecycleOwner
import androidx.recyclerview.widget.RecyclerView
import androidx.viewpager.widget.ViewPager
import com.bluelinelabs.conductor.ChangeHandlerFrameLayout
import com.google.android.material.appbar.AppBarLayout
import eu.kanade.tachiyomi.util.system.isTablet
import eu.kanade.tachiyomi.util.view.findChild
import eu.kanade.tachiyomi.util.view.findDescendant
import eu.kanade.tachiyomi.util.view.getActivePageView
import kotlinx.coroutines.flow.launchIn
import kotlinx.coroutines.flow.onEach
import reactivecircus.flowbinding.android.view.HierarchyChangeEvent
@ -32,10 +30,6 @@ import reactivecircus.flowbinding.android.view.hierarchyChangeEvents
* 1. When nested scroll detected, lift state will be decided from the nested
* scroll target. (See [onNestedScroll])
*
* 2. When a descendant ViewPager active page is changed and the page contains RecyclerView,
* lift state will be decided from the said RecyclerView. (See [pageChangeListener])
*
*
* With those conditions, this view expects the following direct child:
*
* 1. An [AppBarLayout].
@ -55,22 +49,6 @@ class TachiyomiCoordinatorLayout @JvmOverloads constructor(
private var appBarLayout: AppBarLayout? = null
private var viewPager: ViewPager? = null
set(value) {
field?.removeOnPageChangeListener(pageChangeListener)
field = value
field?.addOnPageChangeListener(pageChangeListener)
}
private val pageChangeListener = object : ViewPager.SimpleOnPageChangeListener() {
override fun onPageScrollStateChanged(state: Int) {
// Wait until idle to make sure all the views laid out properly before checked
if (canLiftAppBarOnScroll && state == ViewPager.SCROLL_STATE_IDLE) {
appBarLayout?.isLifted = (viewPager?.getActivePageView() as? ViewGroup)
?.findDescendant<RecyclerView>()
?.canScrollVertically(-1) ?: false
}
}
}
/**
* If true, [AppBarLayout] child will be lifted on nested scroll.