added swipe to perform

Author: pknotfound

SwipeToDelete/src/main/java/com/kedia/swipetodelete/SwipeToDelete.kt

@@ -4,6 +4,7 @@ import android.graphics.Canvas
 import androidx.annotation.ColorInt
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.RecyclerView
+import com.kedia.swipetodelete.utils.DIRECTION
 import java.lang.Exception
 
 
@@ -83,9 +84,3 @@ interface OnSwiped {
     fun swipeToDelete(adapterPosition: Int)
 }
 
-enum class DIRECTION(val direction: Int) {
-    UP (ItemTouchHelper.UP),
-    DOWN(ItemTouchHelper.DOWN),
-    RIGHT(ItemTouchHelper.RIGHT),
-    LEFT(ItemTouchHelper.LEFT)
-}

SwipeToDelete/src/main/java/com/kedia/swipetodelete/SwipeToPerform.kt

@@ -0,0 +1,79 @@
+package com.kedia.swipetodelete
+
+import android.graphics.Canvas
+import androidx.annotation.ColorInt
+import androidx.recyclerview.widget.ItemTouchHelper
+import androidx.recyclerview.widget.RecyclerView
+import com.kedia.swipetodelete.utils.DIRECTION
+import java.lang.Exception
+
+fun RecyclerView.addSwipeToPerform(
+    list: List<DIRECTION>? = emptyList(),
+    listener: OnSwipeToPerform? = null,
+    @ColorInt colorOneInt: Int? = null,
+    @ColorInt colorTwoInt: Int? = null
+) {
+
+    var swipeDirs = ItemTouchHelper.RIGHT
+    list?.apply {
+        for (element in list) {
+            if (element != DIRECTION.RIGHT) {
+                swipeDirs = swipeDirs or DIRECTION.valueOf(element.name).direction
+            }
+        }
+    }
+
+    val simpleCallback = object : ItemTouchHelper.SimpleCallback(0 , swipeDirs) {
+        override fun onMove(
+            recyclerView: RecyclerView,
+            viewHolder: RecyclerView.ViewHolder,
+            target: RecyclerView.ViewHolder
+        ): Boolean {
+            return false
+        }
+
+        override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
+            listener?.swipeToPerform(adapterPosition = 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)
+}
+
+interface OnSwipeToPerform {
+    fun swipeToPerform(adapterPosition: Int)
+}

SwipeToDelete/src/main/java/com/kedia/swipetodelete/utils/utils.kt

@@ -0,0 +1,10 @@
+package com.kedia.swipetodelete.utils
+
+import androidx.recyclerview.widget.ItemTouchHelper
+
+enum class DIRECTION(val direction: Int) {
+    UP (ItemTouchHelper.UP),
+    DOWN(ItemTouchHelper.DOWN),
+    RIGHT(ItemTouchHelper.RIGHT),
+    LEFT(ItemTouchHelper.LEFT)
+}

app/src/main/java/com/kedia/customswipelibrary/MainActivity.kt

@@ -1,13 +1,15 @@
 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.*
+import com.kedia.swipetodelete.utils.DIRECTION
 import kotlinx.android.synthetic.main.activity_main.*
 
-class MainActivity : AppCompatActivity(), OnSwiped, OnDragged {
+class MainActivity : AppCompatActivity(), OnSwiped, OnDragged, OnSwipeToPerform {
 
     private val list = mutableListOf<String>()
     private lateinit var adapter: Adapter
@@ -30,6 +32,7 @@ class MainActivity : AppCompatActivity(), OnSwiped, OnDragged {
         val list = listOf(
             DIRECTION.LEFT,
             DIRECTION.RIGHT)
+        recycler.addSwipeToPerform(list, this, ContextCompat.getColor(this, R.color.colorPrimaryDark))
         recycler.addSwipeToDelete(list, this, ContextCompat.getColor(this, R.color.colorPrimaryDark))
 //        try {
 //            SwipeToDelete.javaClass.getDeclaredMethod("some").invoke(SwipeToDelete)
@@ -46,4 +49,8 @@ class MainActivity : AppCompatActivity(), OnSwiped, OnDragged {
         adapter.removeItem(adapterPosition)
     }
 
+    override fun swipeToPerform(adapterPosition: Int) {
+        Log.d("TAG!!!!", "swipeToPerform: swiped")
+    }
+
 }