add a callback for updating the fastscroller bubble text (dabb5ef7) · Commits · e / os / Simple-Commons

build.gradle

+1 −1

Original line number	Diff line number	Diff line
		@@ -7,7 +7,7 @@ buildscript {
		propMinSdkVersion = 16
		propTargetSdkVersion = propCompileSdkVersion
		propVersionCode = 1
		propVersionName = '3.1.2'
		propVersionName = '3.1.3'
		kotlin_version = '1.2.0'
		support_libs = '27.0.2'
		}

commons/src/main/kotlin/com/simplemobiletools/commons/views/FastScroller.kt

+9 −6

Original line number	Diff line number	Diff line
		@@ -17,13 +17,14 @@ import com.simplemobiletools.commons.extensions.baseConfig
		// based on https://blog.stylingandroid.com/recyclerview-fastscroll-part-1
		class FastScroller : FrameLayout {
		var isHorizontal = false
		var allowBubbleDisplay = false

		private var handle: View? = null
		private var bubble: TextView? = null
		private var currHeight = 0
		private var currWidth = 0
		private var bubbleOffset = 0
		private var allowBubbleDisplay = false
		private var fastScrollCallback: ((Int) -> Unit)? = null

		private val HANDLE_HIDE_DELAY = 1000L
		private var recyclerView: RecyclerView? = null
		@@ -35,7 +36,7 @@ class FastScroller : FrameLayout {

		constructor(context: Context, attrs: AttributeSet, defStyle: Int) : super(context, attrs, defStyle)

		fun setViews(recyclerView: RecyclerView, swipeRefreshLayout: SwipeRefreshLayout? = null) {
		fun setViews(recyclerView: RecyclerView, swipeRefreshLayout: SwipeRefreshLayout? = null, callback: ((Int) -> Unit)? = null) {
		this.recyclerView = recyclerView
		this.swipeRefreshLayout = swipeRefreshLayout
		updatePrimaryColor()
		@@ -52,6 +53,9 @@ class FastScroller : FrameLayout {
		}
		}
		})

		allowBubbleDisplay = callback != null
		fastScrollCallback = callback
		}

		fun updatePrimaryColor() {
		@@ -162,15 +166,14 @@ class FastScroller : FrameLayout {

		val targetPos = getValueInRange(0f, (itemCount - 1).toFloat(), proportion * itemCount).toInt()
		(recyclerView!!.layoutManager as LinearLayoutManager).scrollToPositionWithOffset(targetPos, 0)
		fastScrollCallback?.invoke(targetPos)
		}
		}

		override fun onFinishInflate() {
		super.onFinishInflate()
		handle = getChildAt(0)
		if (allowBubbleDisplay) {
		bubble = getChildAt(1) as? TextView
		}

		if (bubble != null) {
		bubbleOffset = resources.getDimension(R.dimen.fastscroll_height).toInt()
		@@ -182,7 +185,7 @@ class FastScroller : FrameLayout {
		handle!!.animate().alpha(1f).start() // override the fade animation
		handle!!.alpha = 1f

		if (handle!!.isSelected) {
		if (handle!!.isSelected && allowBubbleDisplay) {
		bubble?.animate()?.alpha(1f)?.start()
		bubble?.alpha = 1f
		}