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pull/32/head
kunfei 5 years ago
parent 42fe4ffee5
commit 190437b3e0
1 changed files with 45 additions and 43 deletions
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  1. 76
      app/src/main/java/io/legado/app/ui/widget/recycler/scroller/FastScroller.kt

76
app/src/main/java/io/legado/app/ui/widget/recycler/scroller/FastScroller.kt
Unescape View File

@ -47,10 +47,10 @@ class FastScroller : LinearLayout {
private var mScrollbarAnimator: ViewPropertyAnimator? = null
private var mBubbleAnimator: ViewPropertyAnimator? = null
private var mRecyclerView: RecyclerView? = null
private var mBubbleView: TextView? = null
private var mHandleView: ImageView? = null
private var mTrackView: ImageView? = null
private var mScrollbar: View? = null
private lateinit var mBubbleView: TextView
private lateinit var mHandleView: ImageView
private lateinit var mTrackView: ImageView
private lateinit var mScrollbar: View
private var mBubbleImage: Drawable? = null
private var mHandleImage: Drawable? = null
private var mTrackImage: Drawable? = null
@ -59,7 +59,7 @@ class FastScroller : LinearLayout {
private val mScrollListener = object : RecyclerView.OnScrollListener() {
override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
if (!mHandleView!!.isSelected && isEnabled) {
if (!mHandleView.isSelected && isEnabled) {
setViewPositions(getScrollProportion(recyclerView))
}
}
@ -75,7 +75,7 @@ class FastScroller : LinearLayout {
showScrollbar()
}
}
RecyclerView.SCROLL_STATE_IDLE -> if (mFadeScrollbar && !mHandleView!!.isSelected) {
RecyclerView.SCROLL_STATE_IDLE -> if (mFadeScrollbar && !mHandleView.isSelected) {
handler.postDelayed(mScrollbarHider, sScrollbarHideDelay.toLong())
}
}
@ -175,7 +175,7 @@ class FastScroller : LinearLayout {
*/
fun setFadeScrollbar(fadeScrollbar: Boolean) {
mFadeScrollbar = fadeScrollbar
mScrollbar!!.visibility = if (fadeScrollbar) View.GONE else View.VISIBLE
mScrollbar.visibility = if (fadeScrollbar) View.GONE else View.VISIBLE
}
/**
@ -193,7 +193,7 @@ class FastScroller : LinearLayout {
* @param visible True to show scroll track, false to hide
*/
fun setTrackVisible(visible: Boolean) {
mTrackView!!.visibility = if (visible) View.VISIBLE else View.GONE
mTrackView.visibility = if (visible) View.VISIBLE else View.GONE
}
/**
@ -209,7 +209,7 @@ class FastScroller : LinearLayout {
}
}
DrawableCompat.setTint(mTrackImage!!, color)
mTrackView!!.setImageDrawable(mTrackImage)
mTrackView.setImageDrawable(mTrackImage)
}
/**
@ -226,7 +226,7 @@ class FastScroller : LinearLayout {
}
}
DrawableCompat.setTint(mHandleImage!!, mHandleColor)
mHandleView!!.setImageDrawable(mHandleImage)
mHandleView.setImageDrawable(mHandleImage)
}
/**
@ -243,7 +243,7 @@ class FastScroller : LinearLayout {
}
}
DrawableCompat.setTint(mBubbleImage!!, mBubbleColor)
mBubbleView!!.background = mBubbleImage
mBubbleView.background = mBubbleImage
}
/**
@ -252,7 +252,7 @@ class FastScroller : LinearLayout {
* @param color The text color for the index bubble
*/
fun setBubbleTextColor(@ColorInt color: Int) {
mBubbleView!!.setTextColor(color)
mBubbleView.setTextColor(color)
}
/**
@ -273,7 +273,7 @@ class FastScroller : LinearLayout {
override fun onTouchEvent(event: MotionEvent): Boolean {
when (event.action) {
MotionEvent.ACTION_DOWN -> {
if (event.x < mHandleView!!.x - ViewCompat.getPaddingStart(mHandleView!!)) {
if (event.x < mHandleView.x - ViewCompat.getPaddingStart(mHandleView)) {
return false
}
requestDisallowInterceptTouchEvent(true)
@ -326,8 +326,8 @@ class FastScroller : LinearLayout {
if (mRecyclerView != null && mRecyclerView!!.adapter != null) {
val itemCount = mRecyclerView!!.adapter!!.itemCount
val proportion: Float = when {
mHandleView!!.y == 0f -> 0f
mHandleView!!.y + mHandleHeight >= mViewHeight - sTrackSnapRange -> 1f
mHandleView.y == 0f -> 0f
mHandleView.y + mHandleHeight >= mViewHeight - sTrackSnapRange -> 1f
else -> y / mViewHeight.toFloat()
}
var scrolledItemCount = (proportion * itemCount).roundToInt()
@ -337,7 +337,7 @@ class FastScroller : LinearLayout {
val targetPos = getValueInRange(0, itemCount - 1, scrolledItemCount)
mRecyclerView!!.layoutManager!!.scrollToPosition(targetPos)
if (mShowBubble && mSectionIndexer != null) {
mBubbleView!!.text = mSectionIndexer!!.getSectionText(targetPos)
mBubbleView.text = mSectionIndexer!!.getSectionText(targetPos)
}
}
}
@ -359,22 +359,22 @@ class FastScroller : LinearLayout {
}
private fun setViewPositions(y: Float) {
mBubbleHeight = mBubbleView!!.height
mHandleHeight = mHandleView!!.height
mBubbleHeight = mBubbleView.height
mHandleHeight = mHandleView.height
val bubbleY = getValueInRange(0, mViewHeight - mBubbleHeight - mHandleHeight / 2, (y - mBubbleHeight).toInt())
val handleY = getValueInRange(0, mViewHeight - mHandleHeight, (y - mHandleHeight / 2).toInt())
if (mShowBubble) {
mBubbleView!!.y = bubbleY.toFloat()
mBubbleView.y = bubbleY.toFloat()
}
mHandleView!!.y = handleY.toFloat()
mHandleView.y = handleY.toFloat()
}
private fun updateViewHeights() {
val measureSpec = MeasureSpec.makeMeasureSpec(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED)
mBubbleView!!.measure(measureSpec, measureSpec)
mBubbleHeight = mBubbleView!!.measuredHeight
mHandleView!!.measure(measureSpec, measureSpec)
mHandleHeight = mHandleView!!.measuredHeight
mBubbleView.measure(measureSpec, measureSpec)
mBubbleHeight = mBubbleView.measuredHeight
mHandleView.measure(measureSpec, measureSpec)
mHandleHeight = mHandleView.measuredHeight
}
private fun isLayoutReversed(layoutManager: RecyclerView.LayoutManager): Boolean {
@ -396,8 +396,8 @@ class FastScroller : LinearLayout {
private fun showBubble() {
if (!isViewVisible(mBubbleView)) {
mBubbleView!!.visibility = View.VISIBLE
mBubbleAnimator = mBubbleView!!.animate().alpha(1f)
mBubbleView.visibility = View.VISIBLE
mBubbleAnimator = mBubbleView.animate().alpha(1f)
.setDuration(sBubbleAnimDuration.toLong())
.setListener(object : AnimatorListenerAdapter() {
@ -408,18 +408,18 @@ class FastScroller : LinearLayout {
private fun hideBubble() {
if (isViewVisible(mBubbleView)) {
mBubbleAnimator = mBubbleView!!.animate().alpha(0f)
mBubbleAnimator = mBubbleView.animate().alpha(0f)
.setDuration(sBubbleAnimDuration.toLong())
.setListener(object : AnimatorListenerAdapter() {
override fun onAnimationEnd(animation: Animator) {
super.onAnimationEnd(animation)
mBubbleView!!.visibility = View.GONE
mBubbleView.visibility = View.GONE
mBubbleAnimator = null
}
override fun onAnimationCancel(animation: Animator) {
super.onAnimationCancel(animation)
mBubbleView!!.visibility = View.GONE
mBubbleView.visibility = View.GONE
mBubbleAnimator = null
}
})
@ -427,11 +427,12 @@ class FastScroller : LinearLayout {
}
private fun showScrollbar() {
if (mRecyclerView!!.computeVerticalScrollRange() - mViewHeight > 0) {
mRecyclerView?.let { mRecyclerView ->
if (mRecyclerView.computeVerticalScrollRange() - mViewHeight > 0) {
val transX = resources.getDimensionPixelSize(R.dimen.fastscroll_scrollbar_padding_end).toFloat()
mScrollbar!!.translationX = transX
mScrollbar!!.visibility = View.VISIBLE
mScrollbarAnimator = mScrollbar!!.animate().translationX(0f).alpha(1f)
mScrollbar.translationX = transX
mScrollbar.visibility = View.VISIBLE
mScrollbarAnimator = mScrollbar.animate().translationX(0f).alpha(1f)
.setDuration(sScrollbarAnimDuration.toLong())
.setListener(object : AnimatorListenerAdapter() {
@ -439,28 +440,29 @@ class FastScroller : LinearLayout {
})
}
}
}
private fun hideScrollbar() {
val transX = resources.getDimensionPixelSize(R.dimen.fastscroll_scrollbar_padding_end).toFloat()
mScrollbarAnimator = mScrollbar!!.animate().translationX(transX).alpha(0f)
mScrollbarAnimator = mScrollbar.animate().translationX(transX).alpha(0f)
.setDuration(sScrollbarAnimDuration.toLong())
.setListener(object : AnimatorListenerAdapter() {
override fun onAnimationEnd(animation: Animator) {
super.onAnimationEnd(animation)
mScrollbar!!.visibility = View.GONE
mScrollbar.visibility = View.GONE
mScrollbarAnimator = null
}
override fun onAnimationCancel(animation: Animator) {
super.onAnimationCancel(animation)
mScrollbar!!.visibility = View.GONE
mScrollbar.visibility = View.GONE
mScrollbarAnimator = null
}
})
}
private fun setHandleSelected(selected: Boolean) {
mHandleView!!.isSelected = selected
mHandleView.isSelected = selected
DrawableCompat.setTint(mHandleImage!!, if (selected) mBubbleColor else mHandleColor)
}

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