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list: re-add fast scroll thumb

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This commit is contained in:
Alexander Capehart 2025-01-04 10:57:47 -07:00
parent 4c58590cb0
commit 171c0c795e
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GPG key ID: 37DBE3621FE9AD47
5 changed files with 208 additions and 18 deletions
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2
app/src/main/java/org/oxycblt/auxio/home/list/ListUtil.kt
View file

@ -24,6 +24,6 @@ import org.oxycblt.musikr.tag.Name
fun Name.thumb() =
when (this) {
is Name.Known ->
tokens.firstOrNull()?.let { if (it.value.isDigitsOnly()) "#" else it.value }
tokens.firstOrNull()?.let { if (it.value.isDigitsOnly()) "#" else it.value.first().uppercase() }
is Name.Unknown -> "?"
}

159
app/src/main/java/org/oxycblt/auxio/list/recycler/FastScrollRecyclerView.kt
View file

@ -22,22 +22,36 @@ import android.animation.Animator
import android.content.Context
import android.graphics.Canvas
import android.graphics.Rect
import android.text.TextUtils
import android.util.AttributeSet
import android.view.Gravity
import android.view.MotionEvent
import android.view.View
import android.view.ViewConfiguration
import android.view.ViewGroup
import android.view.WindowInsets
import android.widget.FrameLayout
import android.widget.TextView
import androidx.annotation.AttrRes
import androidx.core.view.isInvisible
import androidx.core.view.updatePaddingRelative
import androidx.core.widget.TextViewCompat
import androidx.recyclerview.widget.RecyclerView
import com.google.android.material.textview.MaterialTextView
import kotlin.math.abs
import kotlin.math.max
import kotlin.math.roundToInt
import org.oxycblt.auxio.R
import org.oxycblt.auxio.ui.MaterialFadingSlider
import org.oxycblt.auxio.ui.MaterialSlider
import org.oxycblt.auxio.util.getAttrColorCompat
import org.oxycblt.auxio.util.getDimenPixels
import org.oxycblt.auxio.util.getDrawableCompat
import org.oxycblt.auxio.util.inflater
import org.oxycblt.auxio.util.isRtl
import org.oxycblt.auxio.util.isUnder
import org.oxycblt.auxio.util.systemBarInsetsCompat
import timber.log.Timber
/**
* A [RecyclerView] that enables better fast-scrolling. This is fundamentally a implementation of
@ -74,11 +88,12 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
// Thumb
private val thumbWidth = context.getDimenPixels(R.dimen.spacing_mid_medium)
private val thumbHeight = context.getDimenPixels(R.dimen.size_touchable_medium)
private val slider = MaterialSlider(context, thumbWidth)
private val thumbSlider = MaterialSlider.small(context, thumbWidth)
private var thumbAnimator: Animator? = null
private val thumbView =
context.inflater.inflate(R.layout.view_scroll_thumb, null).apply { slider.jumpOut(this) }
context.inflater.inflate(R.layout.view_scroll_thumb, null)
.apply { thumbSlider.jumpOut(this) }
private val thumbPadding = Rect(0, 0, 0, 0)
private var thumbOffset = 0
@ -89,6 +104,36 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
}
}
private val popupView = MaterialTextView(context).apply {
minimumWidth = context.getDimenPixels(R.dimen.size_touchable_large)
minimumHeight = context.getDimenPixels(R.dimen.size_touchable_small)
TextViewCompat.setTextAppearance(this, R.style.TextAppearance_Auxio_HeadlineMedium)
setTextColor(context.getAttrColorCompat(com.google.android.material.R.attr.colorOnSecondary))
ellipsize = TextUtils.TruncateAt.MIDDLE
gravity = Gravity.CENTER
includeFontPadding = false
elevation =
context.getDimenPixels(com.google.android.material.R.dimen.m3_sys_elevation_level1)
.toFloat()
background = context.getDrawableCompat(R.drawable.ui_popup)
updatePaddingRelative(end = context.getDimenPixels(R.dimen.spacing_tiny) / 2)
layoutParams =
FrameLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT
)
.apply {
gravity = Gravity.CENTER_HORIZONTAL or Gravity.TOP
}
}
private val popupSlider =
MaterialFadingSlider(MaterialSlider.large(context, popupView.minimumWidth / 2)).apply {
jumpOut(popupView)
}
private var popupAnimator: Animator? = null
private var showingPopup = false
// Touch
private val minTouchTargetSize = context.getDimenPixels(R.dimen.size_touchable_small)
private val touchSlop = ViewConfiguration.get(context).scaledTouchSlop
@ -109,6 +154,7 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
if (!value) {
removeCallbacks(hideThumbRunnable)
hideScrollbar()
hidePopup()
}
listener?.onFastScrollingChanged(field)
@ -131,7 +177,9 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
if (field) {
removeCallbacks(hideThumbRunnable)
showScrollbar()
showPopup()
} else {
hidePopup()
postAutoHideScrollbar()
}
@ -143,6 +191,7 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
init {
overlay.add(thumbView)
overlay.add(popupView)
addItemDecoration(
object : ItemDecoration() {
@ -176,7 +225,8 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
thumbView.layoutDirection = layoutDirection
thumbView.measure(
MeasureSpec.makeMeasureSpec(thumbWidth, MeasureSpec.EXACTLY),
MeasureSpec.makeMeasureSpec(thumbHeight, MeasureSpec.EXACTLY))
MeasureSpec.makeMeasureSpec(thumbHeight, MeasureSpec.EXACTLY)
)
val thumbTop = thumbPadding.top + thumbOffset
val thumbLeft =
if (isRtl) {
@ -185,6 +235,77 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
width - thumbPadding.right - thumbWidth
}
thumbView.layout(thumbLeft, thumbTop, thumbLeft + thumbWidth, thumbTop + thumbHeight)
popupView.layoutDirection = layoutDirection
val child = getChildAt(0)
val firstAdapterPos =
if (child != null) {
layoutManager?.getPosition(child) ?: NO_POSITION
} else {
NO_POSITION
}
val popupText: String
val provider = popupProvider
if (firstAdapterPos != NO_POSITION && provider != null) {
popupView.isInvisible = false
// Get the popup text. If there is none, we default to "?".
popupText = provider.getPopup(firstAdapterPos) ?: "?"
} else {
// No valid position or provider, do not show the popup.
popupView.isInvisible = false
popupText = ""
}
val popupLayoutParams = popupView.layoutParams as FrameLayout.LayoutParams
if (popupView.text != popupText) {
popupView.text = popupText
val widthMeasureSpec =
ViewGroup.getChildMeasureSpec(
MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY),
thumbPadding.left +
thumbPadding.right +
thumbWidth +
popupLayoutParams.leftMargin +
popupLayoutParams.rightMargin,
popupLayoutParams.width
)
val heightMeasureSpec =
ViewGroup.getChildMeasureSpec(
MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY),
thumbPadding.top +
thumbPadding.bottom +
popupLayoutParams.topMargin +
popupLayoutParams.bottomMargin,
popupLayoutParams.height
)
popupView.measure(widthMeasureSpec, heightMeasureSpec)
Timber.d("Updating popup text to ${popupView.measuredHeight} ${popupView.measuredWidth}")
}
val popupWidth = popupView.measuredWidth
val popupHeight = popupView.measuredHeight
val popupLeft =
if (layoutDirection == View.LAYOUT_DIRECTION_RTL) {
thumbPadding.left + thumbWidth + popupLayoutParams.leftMargin + popupWidth / 2
} else {
width - thumbPadding.right - thumbWidth - popupLayoutParams.rightMargin - popupWidth - popupWidth / 2
}
val popupAnchorY = popupHeight / 2
val thumbAnchorY = thumbView.height / 2
val popupTop =
(thumbTop + thumbAnchorY - popupAnchorY)
.coerceAtLeast(thumbPadding.top + popupLayoutParams.topMargin)
.coerceAtMost(
height - thumbPadding.bottom - popupLayoutParams.bottomMargin - popupHeight
)
popupView.layout(popupLeft, popupTop, popupLeft + popupWidth, popupTop + popupHeight)
}
override fun onScrolled(dx: Int, dy: Int) {
@ -249,10 +370,12 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
dragging = true
}
}
MotionEvent.ACTION_MOVE -> {
if (!dragging &&
thumbView.isUnder(downX, thumbView.top.toFloat(), minTouchTargetSize) &&
abs(eventY - downY) > touchSlop) {
abs(eventY - downY) > touchSlop
) {
if (thumbView.isUnder(downX, downY, minTouchTargetSize)) {
dragStartY = lastY
dragStartThumbOffset = thumbOffset
@ -271,6 +394,7 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
scrollToThumbOffset(thumbOffset)
}
}
MotionEvent.ACTION_UP,
MotionEvent.ACTION_CANCEL -> dragging = false
}
@ -312,7 +436,7 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
showingThumb = true
thumbAnimator?.cancel()
thumbAnimator = slider.slideIn(thumbView).also { it.start() }
thumbAnimator = thumbSlider.slideIn(thumbView).also { it.start() }
}
private fun hideScrollbar() {
@ -322,7 +446,30 @@ constructor(context: Context, attrs: AttributeSet? = null, @AttrRes defStyleAttr
showingThumb = false
thumbAnimator?.cancel()
thumbAnimator = slider.slideOut(thumbView).also { it.start() }
thumbAnimator = thumbSlider.slideOut(thumbView).also { it.start() }
}
private fun showPopup() {
if (!thumbEnabled) {
return
}
if (showingPopup) {
return
}
showingPopup = true
popupAnimator?.cancel()
popupAnimator = popupSlider.slideIn(popupView).also { it.start() }
}
private fun hidePopup() {
if (!showingPopup) {
return
}
showingPopup = false
popupAnimator?.cancel()
popupAnimator = popupSlider.slideOut(popupView).also { it.start() }
}
// --- LAYOUT STATE ---

51
app/src/main/java/org/oxycblt/auxio/ui/Animations.kt
View file

@ -201,19 +201,24 @@ class MaterialFlipper(context: Context) {
}
}
class MaterialSlider(context: Context, private val x: Int) {
private val outConfig =
AnimConfig.of(context, AnimConfig.EMPHASIZED_ACCELERATE, AnimConfig.SHORT3)
private val inConfig =
AnimConfig.of(context, AnimConfig.EMPHASIZED_DECELERATE, AnimConfig.MEDIUM1)
class MaterialSlider private constructor(context: Context, private val x: Int?, inDuration: Pair<Int, Int>, outDuration: Pair<Int, Int>) {
private val outConfig = AnimConfig.of(context, AnimConfig.EMPHASIZED_ACCELERATE, outDuration)
private val inConfig = AnimConfig.of(context, AnimConfig.EMPHASIZED_DECELERATE, inDuration)
fun jumpOut(view: View) {
view.translationX = x.toFloat()
if (x == null) {
view.translationX = 100000f
}
view.translationX = (x ?: view.width).toFloat()
}
fun slideOut(view: View): Animator {
val target = (x ?: view.width).toFloat()
if (view.translationX > target) {
view.translationX = target
}
val animator =
outConfig.genericFloat(view.translationX, x.toFloat()) { view.translationX = it }
outConfig.genericFloat(view.translationX, target) { view.translationX = it }
return animator
}
@ -221,4 +226,36 @@ class MaterialSlider(context: Context, private val x: Int) {
val animator = inConfig.genericFloat(view.translationX, 0f) { view.translationX = it }
return animator
}
companion object {
fun small(context: Context, x: Int?) = MaterialSlider(context, x, AnimConfig.SHORT3, AnimConfig.MEDIUM1)
fun large(context: Context, x: Int?) = MaterialSlider(context, x, AnimConfig.MEDIUM3, AnimConfig.SHORT3)
}
}
class MaterialFadingSlider(private val slider: MaterialSlider) {
fun jumpOut(view: View) {
slider.jumpOut(view)
view.alpha = 0f
}
fun slideOut(view: View): Animator {
val slideOut = slider.slideOut(view)
val alphaOut = ValueAnimator.ofFloat(1f, 0f).apply {
duration = slideOut.duration
addUpdateListener { view.alpha = it.animatedValue as Float }
}
return AnimatorSet().apply { playTogether(slideOut, alphaOut) }
}
fun slideIn(view: View): Animator {
val slideIn = slider.slideIn(view)
val alphaIn = ValueAnimator.ofFloat(0f, 1f).apply {
duration = slideIn.duration
addUpdateListener { view.alpha = it.animatedValue as Float }
}
return AnimatorSet().apply { playTogether(slideIn, alphaIn) }
}
}

6
app/src/main/res/drawable/ui_popup.xml
View file

@ -3,9 +3,9 @@
android:shape="rectangle"
android:tint="?attr/colorSecondary">
<corners android:radius="16dp" />
<corners android:radius="48dp" />
<size
android:width="56dp"
android:height="56dp" />
android:width="48dp"
android:height="48dp" />
<solid android:color="@android:color/white" />
</shape>

6
app/src/main/res/values/dimens.xml
View file

@ -29,6 +29,12 @@
<dimen name="height_scroll_thumb">48dp</dimen>
<!-- Misc -->
<dimen name="fast_scroll_popup_min_width">72dp</dimen>
<dimen name="fast_scroll_popup_min_height">52dp</dimen>
<dimen name="fast_scroll_popup_padding_start">@dimen/spacing_medium</dimen>
<dimen name="fast_scroll_popup_padding_end">30dp</dimen>
<dimen name="fast_scroll_thumb_touch_target_size">48dp</dimen>
<dimen name="m3_shape_corners_large">16dp</dimen>
<dimen name="m3_shape_corners_full">128dp</dimen>