added methods

pknotfound · Oct 24, 2020 · 7538e1a · 7538e1a
1 parent 08b0cca
commit 7538e1a
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Showing 3 changed files with 54 additions and 4 deletions.
diff --git a/SwipeToDelete/src/main/java/com/kedia/swipetodelete/DragAndDrop.kt b/SwipeToDelete/src/main/java/com/kedia/swipetodelete/DragAndDrop.kt
@@ -13,7 +13,7 @@ object DragAndDrop: View.OnTouchListener, GestureDetector.OnGestureListener {
 
     private lateinit var holder: RecyclerView.ViewHolder
 
-    fun RecyclerView.addDragToSwipe(): ItemTouchHelper {
+    fun RecyclerView.addDragToSwipe(listener: onDragged? = null): ItemTouchHelper {
 
         val itemTouchCallback = object : ItemTouchHelper.Callback() {
             override fun onSelectedChanged(viewHolder: RecyclerView.ViewHolder?, actionState: Int) {
@@ -52,6 +52,7 @@ object DragAndDrop: View.OnTouchListener, GestureDetector.OnGestureListener {
                 viewHolder: RecyclerView.ViewHolder,
                 target: RecyclerView.ViewHolder
             ): Boolean {
+                listener?.onPositionDragged(viewHolder.adapterPosition, target.adapterPosition)
                 adapter?.notifyItemMoved(viewHolder.adapterPosition, target.adapterPosition)
                 return true
             }
@@ -111,4 +112,8 @@ object DragAndDrop: View.OnTouchListener, GestureDetector.OnGestureListener {
         return false
     }
 
+    interface onDragged {
+        fun onPositionDragged(positionStart: Int, positionEnd: Int)
+    }
+
 }
diff --git a/SwipeToDelete/src/main/java/com/kedia/swipetodelete/SwipeToDelete.kt b/SwipeToDelete/src/main/java/com/kedia/swipetodelete/SwipeToDelete.kt
@@ -1,15 +1,21 @@
 package com.kedia.swipetodelete
 
-import android.util.Log
+import android.graphics.Canvas
+import android.graphics.Color
+import androidx.annotation.ColorInt
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.ItemTouchHelper.RIGHT
 import androidx.recyclerview.widget.RecyclerView
+import java.lang.Exception
+
 
 object SwipeToDelete  {
 
     fun RecyclerView.addSwipeToDelete(
         list: List<DIRECTION> = emptyList(),
-        listener: OnSwiped? = null
+        listener: OnSwiped? = null,
+        @ColorInt colorOneInt: Int? = null,
+        @ColorInt colorTwoInt: Int? = null
     ) {
 
         var swipeDirs = RIGHT
@@ -33,10 +39,48 @@ object SwipeToDelete  {
                 this@addSwipeToDelete.adapter?.notifyItemRemoved(viewHolder.adapterPosition)
             }
 
+            override fun onChildDraw(
+                c: Canvas,
+                recyclerView: RecyclerView,
+                viewHolder: RecyclerView.ViewHolder,
+                dX: Float,
+                dY: Float,
+                actionState: Int,
+                isCurrentlyActive: Boolean
+            ) {
+                c.clipRect(0f, viewHolder.itemView.top.toFloat(),
+                    dX, viewHolder.itemView.bottom.toFloat())
+
+                if (colorTwoInt != null && colorOneInt == null)
+                    throw Exception("Color One cannot be null if Color Two is non null")
+
+                if (colorTwoInt == null) {
+                    colorOneInt?.apply { c.drawColor(this) }
+                } else {
+                    if(dX < width / 2)
+                        colorOneInt?.apply { c.drawColor(this) }
+                    else
+                        colorTwoInt?.apply { c.drawColor(this) }
+                }
+
+                super.onChildDraw(
+                    c,
+                    recyclerView,
+                    viewHolder,
+                    dX,
+                    dY,
+                    actionState,
+                    isCurrentlyActive
+                )
+            }
         }
         ItemTouchHelper(simpleCallback).attachToRecyclerView(this)
     }
 
+    private fun Float.isPositive(): Boolean {
+        return this > 0
+    }
+
     interface OnSwiped {
         fun swipeToDelete(adapterPosition: Int)
     }

diff --git a/app/src/main/java/com/kedia/customswipelibrary/MainActivity.kt b/app/src/main/java/com/kedia/customswipelibrary/MainActivity.kt
@@ -3,6 +3,7 @@ package com.kedia.customswipelibrary
 import android.os.Bundle
 import android.util.Log
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.kedia.swipetodelete.DragAndDrop
 import com.kedia.swipetodelete.DragAndDrop.addDragToSwipe
@@ -32,7 +33,7 @@ class MainActivity : AppCompatActivity(), SwipeToDelete.OnSwiped {
 
         val list = listOf(SwipeToDelete.DIRECTION.LEFT,
             SwipeToDelete.DIRECTION.RIGHT)
-        recycler.addSwipeToDelete(list, this)
+        recycler.addSwipeToDelete(list, this, ContextCompat.getColor(this, R.color.colorPrimaryDark))
 //        try {
 //            SwipeToDelete.javaClass.getDeclaredMethod("some").invoke(SwipeToDelete)
 //        } catch (e: NoSuchMethodException) {