mirror of
https://github.com/recloudstream/cloudstream.git
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144 lines
4.2 KiB
Kotlin
144 lines
4.2 KiB
Kotlin
package com.lagradost.cloudstream3.ui
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import android.content.Context
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import android.util.AttributeSet
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import android.view.View
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import androidx.recyclerview.widget.GridLayoutManager
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import androidx.recyclerview.widget.RecyclerView
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import kotlin.math.abs
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class GrdLayoutManager(val context: Context, _spanCount: Int) : GridLayoutManager(context, _spanCount) {
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override fun onFocusSearchFailed(
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focused: View,
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focusDirection: Int,
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recycler: RecyclerView.Recycler,
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state: RecyclerView.State
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): View? {
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return try {
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val fromPos = getPosition(focused)
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val nextPos = getNextViewPos(fromPos, focusDirection)
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findViewByPosition(nextPos)
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} catch (e: Exception) {
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null
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}
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}
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override fun onRequestChildFocus(
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parent: RecyclerView,
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state: RecyclerView.State,
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child: View,
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focused: View?
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): Boolean {
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// android.widget.FrameLayout$LayoutParams cannot be cast to androidx.recyclerview.widget.RecyclerView$LayoutParams
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return try {
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val pos = maxOf(0, getPosition(focused!!) - 2)
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parent.scrollToPosition(pos)
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super.onRequestChildFocus(parent, state, child, focused)
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} catch (e: Exception){
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false
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}
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}
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// Allows moving right and left with focus https://gist.github.com/vganin/8930b41f55820ec49e4d
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override fun onInterceptFocusSearch(focused: View, direction: Int): View? {
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return try {
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val fromPos = getPosition(focused)
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val nextPos = getNextViewPos(fromPos, direction)
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findViewByPosition(nextPos)
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} catch (e: Exception) {
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null
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}
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}
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private fun getNextViewPos(fromPos: Int, direction: Int): Int {
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val offset = calcOffsetToNextView(direction)
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if (hitBorder(fromPos, offset)) {
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return fromPos
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}
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return fromPos + offset
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}
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private fun calcOffsetToNextView(direction: Int): Int {
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val spanCount = this.spanCount
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val orientation = this.orientation
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if (orientation == VERTICAL) {
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when (direction) {
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View.FOCUS_DOWN -> {
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return spanCount
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}
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View.FOCUS_UP -> {
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return -spanCount
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}
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View.FOCUS_RIGHT -> {
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return 1
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}
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View.FOCUS_LEFT -> {
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return -1
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}
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}
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} else if (orientation == HORIZONTAL) {
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when (direction) {
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View.FOCUS_DOWN -> {
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return 1
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}
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View.FOCUS_UP -> {
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return -1
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}
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View.FOCUS_RIGHT -> {
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return spanCount
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}
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View.FOCUS_LEFT -> {
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return -spanCount
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}
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}
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}
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return 0
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}
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private fun hitBorder(from: Int, offset: Int): Boolean {
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val spanCount = spanCount
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return if (abs(offset) == 1) {
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val spanIndex = from % spanCount
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val newSpanIndex = spanIndex + offset
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newSpanIndex < 0 || newSpanIndex >= spanCount
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} else {
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val newPos = from + offset
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newPos in spanCount..-1
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}
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}
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}
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// https://riptutorial.com/android/example/4810/gridlayoutmanager-with-dynamic-span-count
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class AutofitRecyclerView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
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RecyclerView(context, attrs) {
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private val manager = GrdLayoutManager(context, 2) // THIS CONTROLS SPANS
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private var columnWidth = -1
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var spanCount = 0
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set(value) {
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field = value
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if (value > 0) {
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manager.spanCount = value
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}
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}
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val itemWidth: Int
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get() = measuredWidth / manager.spanCount
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init {
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if (attrs != null) {
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val attrsArray = intArrayOf(android.R.attr.columnWidth)
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val array = context.obtainStyledAttributes(attrs, attrsArray)
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columnWidth = array.getDimensionPixelSize(0, -1)
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array.recycle()
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}
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layoutManager = manager
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}
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} |