playback: band-aid scroll position confusion
Band-aid an issue where the scroll position of any RecyclerView in a PlaybackBarLayout would get consfused because while the main view was present, the fragment was not inflated yet so that it would not show. This is [kindof] fixed by moving the fragment instantiation to the view initialization. However, sometimes the fragment might still not be inflated. The fragment will likely be replaced with a view eventually.
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OxygenCobalt
parent
e779698746
commit
ae39054b63
2 changed files with 61 additions and 43 deletions
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@ -22,6 +22,7 @@ import android.content.Context
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import android.content.res.ColorStateList
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import android.graphics.Insets
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import android.os.Build
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import android.os.Parcelable
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import android.util.AttributeSet
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import android.view.View
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import android.view.ViewGroup
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@ -44,6 +45,13 @@ import org.oxycblt.auxio.util.systemBarsCompat
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* properly. The mechanism is mostly inspired by Material Files' PersistentBarLayout, however
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* this class was primarily written by me and I plan to expand this layout to become part of
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* the playback navigation process.
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*
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* TODO: Migrate CompactPlaybackFragment to a view. This is okay, as updates can be delivered
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* via MainFragment and it would fix the issue where the actual layout won't measure until
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* the fragment is shown.
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* TODO: Implement animation
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* TODO: Implement the swipe-up behavior. This needs to occur, as the way the main fragment
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* saves state results in'
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*/
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class PlaybackBarLayout @JvmOverloads constructor(
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context: Context,
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@ -74,17 +82,8 @@ class PlaybackBarLayout @JvmOverloads constructor(
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fillColor = ColorStateList.valueOf(R.attr.colorSurface.resolveAttr(context))
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}
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}
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}
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override fun onAttachedToWindow() {
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super.onAttachedToWindow()
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if (isInEditMode) {
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return
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}
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// By default, using a FragmentContainerView in this view will result in
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// the fragment disappearing on a recreate. Who knows why.
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if (!isInEditMode) {
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(context as AppCompatActivity).supportFragmentManager.apply {
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this
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.beginTransaction()
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@ -92,6 +91,7 @@ class PlaybackBarLayout @JvmOverloads constructor(
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.commit()
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}
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}
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}
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override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec)
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@ -107,6 +107,8 @@ class PlaybackBarLayout @JvmOverloads constructor(
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val barHeightSpec = getChildMeasureSpec(heightMeasureSpec, 0, barParams.height)
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barLayout.measure(barWidthSpec, barHeightSpec)
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updateWindowInsets()
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val barHeightAdjusted = (barLayout.measuredHeight * barParams.offset).toInt()
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val contentWidth = measuredWidth
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@ -124,8 +126,6 @@ class PlaybackBarLayout @JvmOverloads constructor(
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child.measure(childWidthSpec, childHeightSpec)
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}
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}
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updateWindowInsets()
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}
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override fun onLayout(changed: Boolean, l: Int, t: Int, r: Int, b: Int) {
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@ -154,9 +154,9 @@ class PlaybackBarLayout @JvmOverloads constructor(
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}
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override fun dispatchApplyWindowInsets(insets: WindowInsets): WindowInsets {
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lastInsets = insets
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barLayout.updatePadding(bottom = insets.systemBarsCompat.bottom)
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lastInsets = insets
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updateWindowInsets()
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return insets
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@ -171,12 +171,9 @@ class PlaybackBarLayout @JvmOverloads constructor(
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}
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private fun mutateInsets(insets: WindowInsets): WindowInsets {
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if (barLayout.isVisible) {
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val barParams = barLayout.layoutParams as LayoutParams
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val childConsumedInset = (barLayout.measuredHeight * barParams.offset).toInt()
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logD(childConsumedInset)
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val bars = insets.systemBarsCompat
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// TODO: Q support
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@ -193,21 +190,42 @@ class PlaybackBarLayout @JvmOverloads constructor(
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.build()
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}
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}
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}
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return insets
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}
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fun showBar() {
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(barLayout.layoutParams as LayoutParams).offset = 1f
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val barParams = barLayout.layoutParams as LayoutParams
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if (barParams.offset == 1f) {
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return
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}
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barParams.offset = 1f
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if (isLaidOut) {
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updateWindowInsets()
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}
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invalidate()
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}
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fun hideBar() {
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(barLayout.layoutParams as LayoutParams).offset = 0f
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val barParams = barLayout.layoutParams as LayoutParams
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if (barParams.offset == 0f) {
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return
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}
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barParams.offset = 0f
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if (isLaidOut) {
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updateWindowInsets()
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}
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invalidate()
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}
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// --- LAYOUT PARAMS ---
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override fun generateLayoutParams(attrs: AttributeSet): ViewGroup.LayoutParams {
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@ -4,7 +4,7 @@
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xmlns:tools="http://schemas.android.com/tools"
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tools:context=".detail.DetailFragment">
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<org.oxycblt.auxio.playback.PlaybackBarLayout
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<FrameLayout
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android:id="@+id/bar_layout"
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android:layout_width="match_parent"
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android:layout_height="match_parent">
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@ -38,5 +38,5 @@
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tools:listitem="@layout/item_detail" />
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</androidx.coordinatorlayout.widget.CoordinatorLayout>
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</org.oxycblt.auxio.playback.PlaybackBarLayout>
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</FrameLayout>
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</layout>
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