Revert "Support API 25. Use new DividerItemDecoration."

This reverts commit 05b14bae7b.
2025-10-28 12:57:57 +01:00 · 2016-10-22 21:42:48 +02:00
parent 05b14bae7b
commit e375101132
8 changed files with 110 additions and 14 deletions
--- a/app/src/main/java/eu/kanade/tachiyomi/widget/DividerItemDecoration.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/widget/DividerItemDecoration.kt
@@ -0,0 +1,83 @@
+package eu.kanade.tachiyomi.widget
+
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.Rect
+import android.graphics.drawable.Drawable
+import android.support.v7.widget.LinearLayoutManager
+import android.support.v7.widget.RecyclerView
+import android.util.AttributeSet
+import android.view.View
+
+class DividerItemDecoration : RecyclerView.ItemDecoration {
+
+    private val divider: Drawable?
+
+    constructor(context: Context, attrs: AttributeSet) {
+        val a = context.obtainStyledAttributes(attrs, intArrayOf(android.R.attr.listDivider))
+        divider = a.getDrawable(0)
+        a.recycle()
+    }
+
+    constructor(divider: Drawable) {
+        this.divider = divider
+    }
+
+    override fun getItemOffsets(outRect: Rect, view: View, parent: RecyclerView, state: RecyclerView.State?) {
+        super.getItemOffsets(outRect, view, parent, state)
+        if (divider == null) return
+        if (parent.getChildPosition(view) < 1) return
+
+        if (getOrientation(parent) == LinearLayoutManager.VERTICAL)
+            outRect.top = divider.intrinsicHeight
+        else
+            outRect.left = divider.intrinsicWidth
+    }
+
+    override fun onDrawOver(c: Canvas, parent: RecyclerView, state: RecyclerView.State?) {
+        if (divider == null) {
+            super.onDrawOver(c, parent, state)
+            return
+        }
+
+        if (getOrientation(parent) == LinearLayoutManager.VERTICAL) {
+            val left = parent.paddingLeft
+            val right = parent.width - parent.paddingRight
+            val childCount = parent.childCount
+            val dividerHeight = divider.intrinsicHeight
+
+            for (i in 1..childCount - 1) {
+                val child = parent.getChildAt(i)
+                val params = child.layoutParams as RecyclerView.LayoutParams
+                val ty = (child.translationY + 0.5f).toInt()
+                val top = child.top - params.topMargin + ty
+                val bottom = top + dividerHeight
+                divider.setBounds(left, top, right, bottom)
+                divider.draw(c)
+            }
+        } else { //horizontal
+            val top = parent.paddingTop
+            val bottom = parent.height - parent.paddingBottom
+            val childCount = parent.childCount
+
+            for (i in 1..childCount - 1) {
+                val child = parent.getChildAt(i)
+                val params = child.layoutParams as RecyclerView.LayoutParams
+                val size = divider.intrinsicWidth
+                val left = child.left - params.leftMargin
+                val right = left + size
+                divider.setBounds(left, top, right, bottom)
+                divider.draw(c)
+            }
+        }
+    }
+
+    private fun getOrientation(parent: RecyclerView): Int {
+        if (parent.layoutManager is LinearLayoutManager) {
+            val layoutManager = parent.layoutManager as LinearLayoutManager
+            return layoutManager.orientation
+        } else
+            throw IllegalStateException("DividerItemDecoration can only be used with a LinearLayoutManager.")
+    }
+
+}